jcz

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jcz last won the day on August 20

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About jcz

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    Sweden
  • Interests
    All CP genera, research

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  1. Utricularia, vegetative parts

    Thanks! And no, they have stalked glands, or glanduliferous trichomes, as you prefer :-)
  2. Utricularia, vegetative parts

    Thank you! I used a simple Canon EOS 700D with 60 mm macro lens. I took the photos rather quickly, so I used the flash incorporated in the camera for taking freehand photos, instead of using the tripod. Nothing special. The substrate is the common CP substrate, about 50% peat and 50% quartz sand, with a bit more sand on the top.
  3. Just a simple comparison of a root-like stem, a leaf-like stem, and a true but transformed leaf (trap) in Utricularia aureomaculata.
  4. My Sphagnum

    I am sooo glad to see someone interested in the biology and taxonomy of plants, that I want to say at least "good luck and cheer up!" Some Sphagnum species can be identified with hand lens of medium magnification (let's say, about 10X). Important characters are the morphology of rameal and caulinar phylidia, the arrangement of the branches, if they are all more or less equal or not, the colour (sometimes), the ecology, etc. Or at least, it should be possible to identify them up to the section level. I am unfortunately really busy now, but I will try to get some free time and identify some of my Sphagnum. If there is something interesting to you, of course I will colaborate by sending you samples :-) I am almost sure I have the true S. squarrosum.
  5. Cleaning off the dust?

    Just to provide a few more information, not all Pinguicula are as rain lovers in nature as you may imagine. In fact, many of the epiphytic or lithophytic species clearly prefer places rather protected from rain. I mean, they love a humid substrate, often with running water, but keeping the leaves relatively dry and protected from rain. This is obviously not applicable to the several species that often grow in exposed places, such as meadows and bogs. High variation for a highly diverse genus!
  6. Minimum depth for a tub garden?

    It clearly depends on what species you will grow. A Pinguicula garden can be planted in a few centimetres of soil, while adult Sarracenia appreciate deep soil. I am pretty bad estimating numbers, but with about 20 centimetres depth I would say that you can grow almost all carnivorous plants.
  7. Problem with Sarracenia?

    I agree with carambola. Besides, was the "less green colour" the only problem you noted? Perhaps they were too green because they were receiving less light than the optimal. They are apparently healthy to me.
  8. In fact, that is a really good suggestion! Among the plant offer at Carnivoria.eu there is also U. biloba, so I would not be very surprised if a fragment of that species was mixed with U. subulata. I think I am going to start two parallel cultures from a few, clean, leaf-like organs of both types, pinnately branched and unbranched, and wait until they flower. Thank you very much!
  9. Hello. I have still very limited experience with Utricularia sect. Setiscapella and I ask for help by determining the following specimen. I got it from Carnivoria.eu as "Utricularia subulata" about three months ago. Soon it produced one chasmogamous and several cleistogamous flowers, more or less agreeing with those I expected from U. subulata, so I though the original labelling was correct. However, after growing a lot during the last month, I observed a vigorous growth of pinnate leaf-like organs, which I have not seen in images and descriptions of U. subulata. Now, I suspect of U. trichophylla, which may have flowers resembling those of U. subulata, even Taylor (1989) commented and illustrated the presence of both chasmogamous and cleistogamous inflorescescens. However, I did not checked the calix nerviation and I have never grown it before, so I am not sure. I will try to check the micromorphology of the bladders someday. Could you help me with the current limited data, or should I wait until it flowers again? Let´s think on the possibility that two species were mixed, this one with pinnate leaf-like organs, and perhaps the true U. subulata, since I observed also some unbranched leaf-like organs arising from the substrate. Thank you!
  10. Dans collection pics

    I like very much Sarracenia purpurea s.l. plants as well, because I only have a rather windy place for growing Sarracenia and, of course, S. purpurea s.l. resist really well by being so stout. Also, they look pretty nice year round. Common plants, but not boring plants! The 'Melissa Mazur´is something I should get someday But I think the clone is not so widespread; may I ask where did you find it? Thank you!
  11. My Sphagnum

    I am not sure about the identity of your "Sphagnum squarrosum". While the plants may look like S. squarrosum, the filidia (plant gametophytes have no leaves, leaves are restricted to sporophytes) seem to be cucculate, and not just pointed and involute as commonly seen in S. squarrosum. I would have a look at the species of S. sect. Sphagnum, for instance S. palustre, which may be superficially similar to S. squarrosum. However, my knowledge on the Sphagnum taxonomy is really poor, I hope someone else could help you more. The brown dots are likely amounts of various organic acids, among other things; they should dissolve in warm water after some time.
  12. Hi! Indeed, you will hardly see any utricle on the leaves of Utricularia subg. Polypompholix, because leaves in that subgenus are likely "true leaves", and not just leaf-like stems, as in most (all?) species of U. subg. Bivalvaria and U. subg. Utricularia. In U. subg. Polypompholix you will see separatedly the non-carnivorous, "normal" leaves, and the carnivorus, utricle-modified leaves, both directly connected to the variously shaped stems. In some species, such as U. volubilis, it is easy to see a transition between non-carnivorous and carnivorous leaves. In the other two subgenera perphaps all true leaves have been transformed into utricles, and this is why species developed leaf-like organs from stems, to substitute true leaves. Then, it is not surprising that utricles (modified leaves) arise from any kind of stem, including leaf-like stems. However, at least to me, it is difficult to tell sometimes if you are looking at a leaf-like stem or at a true leaf. Let's think on U. sect. Orchidioides... who would say that those plants have no true leaves?! It would be interesting to know if there is any recent study particularly focused on the ontogeny and genetics of the Utricularia anatomy.