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Dave Evans

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Everything posted by Dave Evans

  1. Sheila, it is a stupid law. If spitting gum is the problem, then directly address to problem of spitting. Don't make criminals out of people not causing the problem. sheeesh! liberals...
  2. Hello Joe, Yeah, the reason the leaves were dieing so fast, is because the plant was responding to the infection. There are a number of issues at work here. First, the disease got started by poor conditions. Most of the time a plant with a functioning immune system can control the disease until the conditions improve to the point they no longer support the pathogen. This is what most people are reporting here, but they aren't aware their plants were being attacked in the first place and just associated the systoms with poor conditions, not a pathogen. Your plant was weakened in some other way which allowed the pathogen (most probably a fungus) to spread too quickly and it started to overwhelm the entire plant. I have seen this happen to lowlanders that were kept too cool and wet. One thing a plant does to control pests and disease is to prematurally kill the affected areas, limiting the pest's or pathogen's ability to abtain food and in turn reproduce. This is why the leaves were dieing so fast and why the color of the leaves was changing to yellow and then black. The normal death of the older was replaced with an emergency response by the plant, if allowed to continue without treament, it probably would have led to too much of the foliage die off, weakening the plant further and then general rot could set into the stem, killing the entire plant, or forcing it to grow back from the root stock--if it still had some strength left in it.
  3. The first is an intermediate pitchers of N. ventricosa, but the second photo is of lower pitcher. I have many seed grown clones and some produce pitchers that look like both of those examples on the same plant. The uppers pitchers on this species are white with a slightly greenish tint and again have a different shape.
  4. Hmm... Any chance you could post a photo showing the whole plant? I suppose it could have N. gymnamphora in it, but that is just a semi-educated guess...
  5. Well, if you can find them available somewhere, it will probably be as seed, if at all... Then grow them out for two years to reach that size...
  6. Drosera graminifolia is what I refer to as an ultrahighlander. It will not survive in warm or hot tempertures long term. I have my one happy plant growing next to a happy N. villosa. Lowland or intermediate conditions will kill them in a few weeks.
  7. A: It could be either D. dielsiana or D. spatulata. B: D. tokaiensis C: D. beleziana
  8. Hi all, Sorry about being so general... While true that N. albomarginata can be found at sea level, I strongly suspect these are the exception, not the rule. It would be nice to hear from someone who has actually visited these locations and could report what the daytime vs. nighttime temps are. Sometimes there can be decent cooling at night even though the altitude is very low. I do know that N. albomarginata likes it very warm during the day and moderate cooling at night, not the same conditions prefered by say, N. bicalcarata which prefers warmth all the time. Also, N. a. does better in slightly lower humidity than most other Nepenthes -- I do not mean it likes to be dry however :) Manders: What species are lowlanders, but enjoy more highland conditions? I am creating a list where I break Nepenthes into four catagories: Lowland, Intermediate, Highland and Ultrahighland. I have not found the two catagories of only highland and lowland to be very useful for discribing conditions a species could be expected to enjoy in cultivation... Intermediate plants tend to be exposed more, higher light levels, periods of lower humidity; hot during the day, moderate cooling at night. N. albomarginata is on my intermediate list and there is almost alway overlap into the ajoining catagories at the tops and bottoms of their altitudinal ranges.
  9. There are no lowland forms of N. albomarginata. It is an intermediate species, it occurs in an altitudinal range just slightly lower than N. sanguinea.
  10. Dear Nepenth-o-philes, If you look at this photo from Gunung Lumut: http://www.heliamphora.de/images/asien19911851.jpg you can see both N. eymae (bottom right) and N. glabrata (upper left) growing together. If they were to hybridize, I rather doubt the upper pitchers would be so colorful. Johnathan, do you have a name for the general area where these plants were found? Was it on a mountain? The stems and leaves are very close to those of N. glabrata, but larger/or more robust. This species/something looks rather like what I would expect if N. glabrata was hybridized with N. paniculata (which is not know from Sulawesi)... So that probably makes this a close relative of N. glabrata. Sincerely, Dave Evans
  11. Dear Johnathan, I can see the end of lid projection normally seen on Nepenthes maxima is displayed on the "marbled" pitcher plant. Also, I can see that the leaves are strongly petiolate. All the photos posted in this thread appear to show N. maxima. N. fusca is from Borneo Island, and is basically defined as not being from Sulawesi Island (along with a couple of other physical characteristics). Sincerely, Dave Evans
  12. Looks like it could be in the stolonifera group... Dave Evans
  13. Dear Aaron, Yeah those are all Nepenthes tentaculata. As per Clarke, in Nepenthes of Borneo, N. t. upper pitchers often have eye spots, but since several other characteristics of these species are well defined, it is easy to tell them apart. For example, the leaf attachment in N. t. is only shared with N. adnata and maybe N. muluensis (mine is too small to tell as of yet), and is different in N. reinwardtiana. Same for the shape of the lid and pitcher opening. They are orbicular in N. r.. Good growing, Dave Evans www.dangerousplants.com
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