Andreas Fleischmann

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Everything posted by Andreas Fleischmann

  1. Ledothamnus luteus (Ericaceae – Heath Family), another endemic to the Chimantá massif. The large striking flowers of Maguireothamnus speciosus (Rubiaceae – Coffee Family) have a long slender tube, are sweetly parfumed and pollinated by nocturnal hawk moths at night. However we did observe some nectar eaters and hummingbirds visiting these flowers during the daytime, too. The Chimantá massif is home to some rare and strange woody Asteraceae, too. The genus Chimantea does exclusively grow there. Chimantea eriocephala Stomatochaeta cymbifolia, closely related to Chimantea. In moist sandy places, Drosera arenicola var. arenicola was common: It often grew together with a nice member of Eriocaulaceae (Pipeworth Family) – Rodonanthus acopanensis. The small creeping stems of Rodonanthus acopanensis always grow all in the same direction. Why? Don’t know ;) The only other species of sundew that grows on the plateaus of the Chimantá massiv is Drosera roraimae, however this species prefers much wetter conditions than D. arenicola.
  2. The more open vegetation consist of tepui “meadows” of hard-leaved sturdy plants. They often have shiny, waxy surfaces, or are iridescent, which is a beautiful glistening view in the low morning sun. The most common and dominant plants in these meadows are species of Brocchinia (Bromeliaceae), Stegolepis (Rapateaceae) as well as different shruby Melastomataceae, Asteracea and Ericaceae. Note the yellow “tubes” of Brocchinia reducta! Flowering Brocchinia reducta. A tuft of Stegolepis ligulata. Like in all species of the monocot genus Stegolepis, the leaves are formed in distichous “fans”: one side of the leaves is showing their upper side, the other one is showing the lower side. In this species, this is especially striking, as the upper side of the leaf is covered with a shiny waxy surface that is iridescent blue, whereas the lower surface in not iridescent and pale yellowish-green. The blue iridescence of the leaves of Stegolepis ligulata. A different species of Brocchinia, B. acuminata. This species is not carnivorous like B. reducta, but hosting ants in the interior of its hollow swollen leaf-sheats. I knocked on a B. acuminata, at the aggressive ants came out to defend their host-plant at once. In the background flowers of Heliamphora pulchella. In the wetter parts of the summit, Heliamphora pulchella was quite common. H. pulchella loves to grow in very wet conditions. We found lots of plants growing in pools of stagnant water, usually with the water level reaching just to the pitcher mouth. H. pulchella growing together with Drosera roraimae and Genlisea repens (yellow flowers). I will not show the species of Genlisea we found here, but in a separate topic. More H. pulchella: In contrast to the closely related H. minor from Auyán-tepui, which has a lid from a conspicuous narrow and elongated base, the lid of H. pulchella (endemic to the Chimantá massiv and neigbouring Aprada massiv) is almost sessile to the pitcher margin. A large and showy colony of H. pulchella. The nodding flowers of H. pulchella consist of four (rarely five) tepals. The inflorescence scape and pedicel are always densely pubescent. This is another good character to distinguish it from H. minor (which has a glabrous scape, just the pedicels are pubescent, too). The private parts of a H. pulchella flower. Herbivore feeding on a carnivore. ;)
  3. Buenas, So I will start with my travel reports from the recent tour in Venezuela (after Fernando kept sending me several little hints to do so ;)). The Chimantá massif (or Macizo del Chimantá) is an extensive huge clefted sandstone mountain system consisting of several seperate tepuis of different altitudes. This is the eastern cliff of Acopán-tepui (or Akopan), which is part of the SE section of Chimantá massif, viewed from the Indian village of Yunék. The Chimantá massif is divided into two sections by a large valley (ranging from NE to SW) that is formed by the Río Tírica (or Rio Tirika) and which is entirely covered by evergreen tropical rainforest. This is a view from the helicopter flying over the lower south-eastern section, the higher north-western section is partly covered in clouds. The rainforest covers the lower parts at the base of the tepuis, whereas the summit of the plateaus are covered by tepui scrub vegetation and low tepui forests. Chimantá massif is the species richest and most diverse tepui massif of the Guayana Highlands, with one of the highest rates of endemism among all tepuis (equaling to Neblina). We got dropped at Amurí-tepui, which is the south-western part of the SE section of Chimantá massif. Actually, Amurí is just one of two “arms” of the large Acopán-tepui (the other arm to the NE is called Churí-tepui). This is a view from a low plateau summit of Amurí, to the SW-facing cliffs of adjacent Acopán-tepui. In the back, on the opposite site of the valley, the central section of Chimantá massif with Toronó-tepui in the front, and the high plateau of Chimantá tepui in the back. Another view of the scenery. The summit of Amurí is covered with large solitary rocks, labyrinths of stones, ravines and cracks. To the right the plateau of adjacent Acopán-tepui, in front a view over Chimantá-tepui. The highest summit plateaus of Amurí (in the back) reach to about 2250 m alt., the lower plateau we had been to is about 2000 m. Some parts of Amurí are covered by dense tepui scrub forest, which is hard to cross. Can you spot the Spot climbing amongst shrubs on this photo? ;)
  4. Hello, It's Genlisea pygmaea. (Wären die beiden Herren Kollegen am frühen Morgen nicht so verschlafen gewesen, hätten sie sicher die feinen Drüsenhärchen am Blütenstiel der abgebildeten Pflanze bemerkt, die G. repens definitv ausschließen, G. repens aber in die nähere Auswahl bringen ;);)) In G. repens, the scape would be almost glabrous. However, currently there's more than just one species united under the name "G. pygmaea", that's why this one might look a little bit different from what you consider to be "typical" G. pygmaea (i.e. more like Fernando's potato-like thing ;)). All the best, Andreas
  5. Hello Drosera-lovers, These are two hardy, cold-loving Drosera species (which, indeed are closely related sisters, and which naturally thrive in the cold conditions of the subantarctic southern hemisphere). Drosera stenopetala, from New Zealand The leaves formed early in spring are short-stalked and form a flat rosette. Later the season the leaves have longer petioles and are held erect. The single white flower develops on a long entirely glabrous scape. Interestingly, its pedulous in bud, and the strange sepals are dark green, almost black, with curled and overlapping margins. Drosera uniflora is endemic to the subantarctic part of South America. These plants were grown from seed originating from the Falkland Islands. The small white flowers are produced solitary on a scape. Like in D. stenopetala, the sepals are very interesting and unique in the whole genus: they are distinctly petiolate and cup-like. Usually, plants of D. uniflora are dark red when growing in full sun. However, all attempts of mine to grow this species in full sun outdoors failed so far. The plants really seem to dislike hot summer temperatures. Thus I grow them partially shaded with some of my temperate Pinguicula species outdoors. This results in dull green plants, however they grow well (but awefully slow!). Both species are kept outdoors under my conditions year round. In winter, they are usually covered with snow for at least 3 months, and stand temperatures down to at least -20°C without problems. However I can only keep the pots outside in winter as long as they are protected by a snow cover, as the plants are not tolerant of freezing. I have already lost several plants from draught and damage due to freezing after some black frosts. Remember that the natural habitats are regions with high precipitation, and therefore are covered by a thick snow-layer all winter. All the best, Andreas
  6. Hello, What a good chance to resume this discussion. I wanted to tell you this anyway, Feranando. After having seen the type collection at NY, and several collections of Steyermark at Caracas Herbarium, I am pretty sure what type D. esmeraldae is. And that this plant from Cerro Duida is NOT D. esmeraldae! The real D. esmeraldae is a lowland savannah plant (type collection is from 200 m alt.!), with long and thin, capillary scapes, few flowers, very glandular calyx. It's identical to some of those plants that you have found in the hybrid swarms at Serra do Araca in Brazil, and which have further been distributed as "D. esmeraldae NOT Araca" or similar names. But (as I might have previously pointed out) this matches the "real" D. esmeraldae perfectly! The type specimens from base of Duida have slighlty pinkish flowers, just like some of your Araca plants under my growing conditions (although the majority has white flowers). You mentioned that the seeds did not match the description, didn't you? Well, the seeds of the holotype don't either! ;) That plant from the summit of Cerro Duida, which I have shown previously, and which Dani brought back to our minds in this thread, is something different. Nothing that has a published name yet. ;) All the best, Andreas PS: According to the outstanding standard work of your two special friends, this is all D. biflora anyway! ;) Haha, those two ladies are even the worst lumpers I have ever heard of! ;)
  7. Hello, The calyx in Linaria would be much smaller than in the plant on the photo. It's a species of Kickxia, Scrophulariaceae. Andreas
  8. Hello, Nice! An anthocynanine-free individual of Utricularia menziesii! The anthocyans are missing (thus no red colouration, neither of corolla nor scape). What's left from the flower colour is the yellow pigments, i.e. flavonoids. That's something I noticed earlier already: red colours in Utricularia flowers (U. menziesii, U. campbelliana, U. quelchii, U. simmonsii) are not pure red, but a colour mix of red and orange-yellow phytopigments. If the yellow pigments are missing, but anthocyans are present, the flowers are pink (like in U. multifida for example. Note: U. multifida and related species do NOT have flavonoids in their flowers (except in the cells of the blotch on the palate. That's why anthoyanine-free mutants in these plants have white flowers, not yellow ones!). That's the simple Lentibulariaceae flower chemistry: anthocyans + flavonoids (rare) = red colour only anthocyans = pink, lilac or blueish colour, depending on the pH-value of the cells only flavonoids = yellow colour (common) none of them = white colour It seems that there are no further compound compound colurs in Lentibulariaceae. I found this out with a very easy test of phenolic extraction in the lab ;). And the best thing: this flower-colour-chemistry supports the phylogeny, yeeppee! ;) All the best, Andreas
  9. Hello Kamil, Spectacular photographs! Yes, the Drosera is a nice variety of D. spatulata, the plant that is called D. spec. 'Bako' or D. sp. '8 Borneo' in cultivation. Just wait for the next (?) issue of CPN to get more information on this plant! ;) All the best, Andreas
  10. Hello, Thanks to you all for the nice comments. As Fernando already stated, the scent of U. oliveriana is sweet and strong. I assume that these plants are pollinated by flies (which would explain the broad open palate as well). @spotc: Sorry, of course it was Spot Cullen AKA Cullens from Tasmania, who found ALL the interesting Utricularia stuff, while I was still looking at boring tiny yellow flowers that all looked the same. ;) How could I have forgotten this? ;) Thanks again to you and all who joined this amazing fieldtrip! And a special thanks to you for your ...erh.. "wake-up-calls", finding interesting plants on the tepuis and for getting so many nice "outakes" of Lord McPherson's ;);). @Martin: Unfortunately I don't have much time at the moment, I'm covered in work again. However, as soon as I need some rest from writing scientific articles on CPs at university, I get on CP UK forum to write some... well... scientific articles on CPs ;). All the best, Andreas
  11. Dear Utricularia-fans, After the photographs of U. hetrochroma from the summit of Amurí-tepui, I’d like to introduce to you another fascinating rheo-lithophytic Utricularia species (i.e. a Utricularia which grows in seeping water attached to bare rock). The margins of the above river did host Utricularia oliveriana, a lowland species endemic to rivers of the Guayana shield. This is the “little sister” of the well-known rheo-lithophyte U. neottioides, which is much more widespread than the rare U. oliveriana. Like in U. neottioides, the flowers of U. oliveriana are cream white, scented and the palate is reduced to a narrow rim, so that the corolla is permanently open (not a snap-dragon-type flower like in many other Utricularias). In contrast to U. neottioides, which has segmented thin leaves like many aquatics, U. oliveriana has entire petiolate leaves, reminiscent of the leaves of many terrestrial Utricularia species. Whereas U. neottioides can be found growing attached to deep riverbeds and even rocks in waterfalls (see threads and beautiful photos in this forum by our Brazilian friends!), its smaller sister U. oliveriana prefers to grow at the margins of rivers, attached to stones and rocks that are only covered by a thin film of water. Note the vigorous red stolons, with which the plant attaches itself to the bare rock. Sorry for the bad quality of that photo, but it was hard to get some decent takes without any reflection of the water surface. The nasty puri-puri sandflies which kept flying into my nose, eyes and ears, and which cause itchy bites when sucking your blood, did not make the job easier to get some nice photos of the lowland species of the Gran Sabana ;). Another tiny Utricularia which grew next to U. oliveriana was U. tenuissima. However, this minute species prefers to grow in mud and sandy soils which accumulated in depressions along the river margins, quite often in a thick film of filamentous algae. That’s why I cannot show you any photograph of the small thin leaves. U. tenuissima was placed in a section of its own by Peter Taylor (because of the unique oblong seed capsules and the strange shape of the traps). However, the flowers look very similar to some Brazilian species of section Aranella (U. parthenopipes, U. laciniata, U. spec. ‘Chapada Diamantina’), and my first molecular estimations indicate that it is indeed close to that section. More soon, All the best, Andreas
  12. Hi all, Stew had already been on Ptari-tepui before, and he has well seen the plants at the type location. Jeff, the plants in cultivation from "the Gran Sabana" are just plants from a single location (i.e. a single "clone"), so are the plants from Ptari in cultivation! H. heterodoxa is probably the most widespread of all Heliamphora species, and most likely one of the most variable ones by morphological leaf characters. To compare just two different "clones" from two sites would not be a good idea, in case you want to get an overview of the morphological plasticity of that species! I have seen lots of herbarium specimens of H. heterodoxa from all over its range now. It is very variable, not even between the different locations, but also within a single population! Lid shape and width of the lid attachment vary greatly within a population! All the best, Andreas
  13. Dear Utricularia-fans, As Fernando has already revealed, we found Utricularia heterochroma (well, Andy Smith found it, I identified and found the 2 single flowers ;)) during our Venezuela trip. This species is very strange, and is placed together with its sister -the even more enigmatic U. mirabilis - in a section of their own, as Peter Taylor did not know where to fit in these strange bladderworts. The entire plant except flowers, scapes and traps is covered with short hairs. The plant grew on Amurí-tepui (part of the Chimantá-massif, a huge extensive cleft sandstone mountain system containing numerous tepuis, in the north-western part of the Gran Sabana National Park in Bolívar state of Venezuela). It was quite common in a shaded wet ridge surrounded by thick mossy tepui forest vegetation, where the plants grew in partial to full shade, either in mats of filamentous algae in dripping walls or covered by a few millimetres of cool running water on bare rock. U. heterochroma can grow without any substrate, firmly attached to the bare sandstone rock with its hairs and stolons. Note the red trap entrances! The function of the strange hair cover was not discussed so far, but for me, it's quite obvious: first, these hairs keep sand and particles in the running water away from the traps. And even maybe more important: these hairs on stolons and petioles help to plant to keep a constant level of water around traps and leaves by capillary effects. This effect can even be seen on the following photograph. The flower of U. heterochroma is tiny (about 1 cm long), but strikingly coloured: the white corolla is marked with red stripes. The spur is orange-yellow, same is the palate. This is the origin of the species' name, too: "heterochroma" means "different colours". However, these Amurí plants did not show the dimorphic leaf attachments like in Taylors plants, and the length of petiole and flower stalk is different in Fernando's plants, too (the black colour of leaves and traps is lacking in the plants on my photos, as they grew in very shady conditions. Plants I saw further upstream which grew in full sun where black like those Fernando found on Ilu-Tramen). All the best, Andreas
  14. Hello Dani, Wonderful photos of well-grown plants! Exactly this is the case! Not only in D. graomogolensis, but also in several other Drosera species, like D. slackii, D. cistiflora etc. They are self-fertile, but not selfing, that is called "faculatative autogamous". All the best, Andreas
  15. Hello, You mean some guy like that one: I have to admit that the size of the corolla in U. multifida (and some other annuals, like U. petertaylorii, too) increases a lot the older the flower gets. These flowers last quite long (from experience in cultivated plants, it may be up to one month at least in U. multifida!), and still grow during anthesis. That's why old flowers are looking a little bit more pale but are bigger than newly openend ones. And even the shape of the corolla lobes differs greatly within one single population of U. multifida (from distinctly truncate ends to almost undivided rounded ends). You may also note that the white-flowered plant has a pale yellowish-green flower stalk, whereas those of the surrounding pink-flowered fellows are reddish in colour. The reason is simple: the white flowered individuals ("albinos") are the result of spontaneous mutations, which are unable to produce the red plant pigment group of anthocyanes. But that plant still has a yellow blotch on the palate, and a yellow colour in the flower stalk. Why? Because these yellow plant pigments are flavones and carotiniods, which are essential for photosynthesis. If a plant was lacking them, it would not survive. That's why I postulate that you will hardly ever find an entirely white-flowered U. multifida, it will always have at least a yellow mark on the palate rims. I have to confess that I did not just capture it on camera by sheer accident, but wilfully, intentionally and repeatedly ;) All the best, Andreas
  16. Hola Sebastian, What a nice travel report, thanks for sharing! I really love to see this plant in the wild. I only knew it from photos and flat dried specimens so far ;) The longest "stem" (or rhizome, if you like) I meassured in a herbarium specimen of P. chuquisacensis was about 10 cm long! Daniel, however these rhizoms are common in every long-living homophyllous Pinguicula. It's just that you normally do not notice them, as the plants are gowing with their substrate. But if you excavate/repot an old P. moranensis, for example, you will note that it has a long underground stem, which slowly decayes from its back end. All the best, Andreas PS: Sebastian, I'm sorry to tell you that you will have to do this tour through the Andes again, because you will still have to find Drosera peruensis, haha! ;)
  17. Hello Richard, Thanks for your interesting comments! I don't want to insult you, but the last few replies of yours did read surprisingly well. This makes answering back much easier to me ;). Some parts of China are definitely on my "travels whishlist", however it is very very hard to get travel and research permits for China! A lot of interesting species of Utricularia section Phyllaria (relatives of U. striatula, all epiphytes or lithophytes) are growing there ;). You are right of course, these Asian "D. peltata" match D. auriculata much more than D. pelata! These Asian plants with glabrous sepals that usually bear several leaves per node (looks like a whorl) have already been described as a distinct species, D. lunata. I still wait for a revision of the D. pelatat-auriculata-complex (Rob Gibson, where are you? ;)), which will hopefull help to re-classify some of the clearly distinct taxa in this group of tuberous Drosera. Nothing! Just death! ;) These myco(hetero)trophics are digesting the fungus hyphae, just like orchids do. However, in some orchids and gentian species (which are all mycotrophics, too), the fungus hyphae first colonise the "digestion chamber" root cells, where they start growing, coiling up and then get digested. Some scientist believe that the fungus gets some kind of home in the outer parts of the root tissue, whereas its hyphae are getting continuously digested in the inner parts of the root. Not a very happy life, I would not dare calling this a symbiosis! The plant is parasitic on the fungus. You are right, but it is hard to find "plain blank" rocks in the wild anyway. Any rock or stone exposed to sun and weather will be colonized by a biofilm of bacteria, algae and protozoa within short time anyway. And that's where plants usually live on. The problem in trying to grow most of these lithophytic species is not to immitate to rock surface they live on (for sure they will thrive well in peat soil, too. Remember that one of the easiest growers, U. sandersonii, is a rare lithophyte in the wild, too!), but the cool, permanently seeping water flow. Thanks for the compliments! ;) All the best, Andreas
  18. Hi Iggy, Very nice plants and photographs, congrats! The D. sp. from Lantau Island is a natural hybrid between D. oblanceolata and D. spatulata. In D. oblanceolata, the scape and calyx would be entirely glabrous. The unidentified tuberous Drosera from Allen Lowrie is D. menziesii. Happy growing, Andreas
  19. Hello Amar, Your plant is D. aliciae, without any influence of D. spatulata in it ;). And: No, I'm neither related nor married to any women selling CPs on ebay! ;) Just the same surname by coincidence. All the best, Andreas
  20. But why should a carnivorous plant develop non-carnivorous leaves that just serve for photosynthesis alone, if the carnivorous leaves are able to do this job as well? ;) It is much more effective in a nutrient poor habitat when the first emerging leaves are doing both photosynthesis AND catching prey. (Maybe I can even try to explain en français: Mais pourquoi une plante carnivore devrait-elle développer les feuilles non-carnivores qui servent seulement à la photosynthèse, si les feuilles carnivores peuvent réaliser ce travail aussi bien ? ;)) All the best, Andreas
  21. I want to illustrate another member of Drosera section Stolonifera: Drosera fimbriata (“the fringed-leaved sundew“) This species is endemic to the sandy plains along the South Coast Highway (HWY 1) of Southern Western Australia. It can be found growing in the “South Coast Highway National Park” (part of that is “Hassell NP”), however the term “National Park” is rather kidding to describe this sort of protected area: it is a thin line of no more than about 10 to 20 meters of natural scrubland vegetation on each roadside along the paved Highway 1, followed by huge areas of farmland or eucalypt plantations. See the following image I found on the web. And that’s how it looks like: Drosera fimbriata grows in fine white quartz sand over a layer of laterite rock. The inflorescence can be forked, the tips of the petals are usually tinged pale pink on the lower surface. The flowers are sweetly parfumed. What is unique in this sundew are the whorls of non-carnivorous fringed leaves at the base of the stem. One interpretation of the function of these structures (eg. by DeBuhr, Lowrie etc.): they should protect the upper parts of the plant from small crawling herbivores. I do not believe in this theory, to be honest. First of all, slugs and snails, as well as some beetles etc. could easily kreep over those barriers (or eat them, if they’re herbivores! Tasty leaves without disturbing enzyme secreting glands - yummy! ;)). Second: if those structures would really help well to keep away herbivores or prey thefts, then WHY have they only evolved in one single species? But in not in any other of the related species? This does not make sense to me. BUT Drosera fimbriata differs from all other members of section Stolonifera in habitat preference, too: it’s the only species that grows in fine sand soils! All other members of this group either grow on laterite soils, a few of them in rough quartz gravel. And that’s the real main function of these modified leaves in my opinion: to keep away sand from the sticky carnivorous leaves of the plant! Several pygmy Drosera that grow in fine sandy soils have to suffer from sand spray during heavy rainfalls, too. Their stems are usually covered with a concret-like sheet of sand. That’s why those pygmies that grow in fine sandy soils are usually those species that develop tall stems (D. scorpioides) or very long stipules (D. sargentii), in order to keep the growing bud and carnivorous leaves free of sand. See how this works with the basal leaves of D. fimbriata, too. You can even see the clods of sand grains sticking to the leaves that are pointing towards the ground. Interestingly, remnants of the fringes of the lowermost leaves can sometimes be found at the base of the upper carnivorous leaves to. Those are not stipules (which are formed by the leaf base) but those fimbriate fringes (which are formed by the leaf margin, just like Drosera tentacles are!). All the best, Andreas
  22. Sawasdee Natapong! Very nice photographs of both habitat and plants! These are some of the best habitat photos of Utricularia odorata that I have seen so far! Congrats! (This is U. odorata, not U. bifida, as your plant has a uper corolla lip that is larger than the calyx, and the pedicel is narrow. Moroover, U. bifida usually has only 1-2 flowers open per scape, in the much more robust U. odorata it's up to 10 or more). All the best, Andreas
  23. G’day mates! ;) During my 3 weeks tour botanising Western Australia, the Drosera stolonifera-complex (or „the stolonifera-gang“, as Allen Lowrie would refer to ;)) was most impressive and fascinating in my opinion. Especially because every species of that complex seem to have its own inhabitants. Let’s start with the most variable species: Drosera rupicola (AKA D. stolonifera ssp. rupicola). Drosera rupicola („the rock-dwelling Drosera“) grows in arid regions on clay soils over granitc rock. It’s most commonly found at the edge of flat granitic outcrops (“inselbergs”), which act like drainage lines during the rainy season, and which form shallow pools that store water. That’s why these granitic outcrops are perfect CP habitat in the drier parts of South-Western WA. Drosera rupicola forms huge populations at some locations. This species occurs in three different colour morphs („yellowish green“, „orange“ and „dark red maroon“), which usually grow together in mixed populations. „Drosera traffic lights“ ;);) The sweetly parfumed flower of D. rupicola last for several days (up to 4 or 5 days in plants in my greenhouse! That’s the most long-lasting Drosera flowers I know of! The limit in D. cistiflora and relatives is three days). I observed that flies were acting as pollinators at that special location. What did attract my attention most were not the sundews alone, but the mirid bugs of genus Setocoris, which live on most Australian Drosera growing on lateritic soil (but on a few species occurring on sandy soils, too). Different place and different Drosera host usually means different sundew bug as well! There are lots of undescribed Setocoris species on various Drosera. However, species identification in true bugs is really difficult, especially in Miridae, as you need to study the male genitals to tell the species apart. Most species of Setocoris you will encounter in Australia are still undescribed species! Setocoris spec. ‚A’ on D. rupicola. Those bugs feed both on the prey that is caught by the plant, as well as on the plant itself (just like Pameridea bugs do on Roridula). These sundew bugs can fly really well, and they disappear at the slightest movement or shadow they note – either by falling from the plant and hiding between the basal leaves, or they just fly away. And I observed that these „sundew bugs“ are not restricted to Drosera only, but thrive well on other plants, too. And there might be more than one single species living on the same host plant. However little is known yet on the habits and ecology of these interesting sundew inhabitants. All the best, Andreas
  24. Hello, I found the time to edit some photos of my Australia CP trip again ;) At this beautiful location near the “town” of Cranbrook (it’s actually just a few houses along a road ;)), carpets of Drosera ramellosa were covering the wet sandy soil. The plants grew among grasses in partial shade, and were still covered by the morning dew. The night before had been extremely cold, down to 5°C. According to Allen Lowrie, occasional frost is common in this area, too. Drosera ramellosa develops two stems with leaves (only very rarely one) and a bunch of flowers from a basal rosette of leaves. Even plants that do only bear one single stem can be distinguished from the related D. platypoda, which always flowers from the top of the stem. D. ramelossa, in contrast, always flowers from the basal rosette. Drosera ramellosa is the only member of the D. stolonifera-complex that is not only self fertile, but even selfing regularly (autogamous)! Sometimes, the flowers do not even open, but self-pollinate cleistogamous. I did notice this in my cultivated plants already, and now observed this in plants in the wild, too. Interestingly, the seed capsule of D. ramellosa is getting a reddish colouration while the seed is ripening. However, it’s a dry capsule when the seed is released, thus it’s not acting as a berry-like fruit for seed dispersal by animals. All the best, Andreas
  25. Hello Georg, 1a shows both D. cuneifolia (large, green) and D. aliciae (reddish leaves) growing sympatrically. 1b is D. cuneifolia. 2 and 3 are D. trinervia. 4 are that D. spec. nov., which still is lacking a name, and which has been distributed in cultivation as "D. aliciae 'Hermanus'", D. sp. 'Hermanus, or D. curviscapa. 5 is D. admirabilis 6 is D. esterhuyseniae. All the best, Andreas