Search found 44 matches

by Les.Needham
Sat Aug 11, 2012 9:49 am
Forum: The Cactus & Succulent Plant Forum
Topic: Rebutia pygmaea
Replies: 12
Views: 5073

Re: Rebutia pygmaea

It seems to me that it would be a good idea to take cultivational experience into account when creating a genus. This is of course non-quantifiable and therefore anathema to a taxonomist, but I think it has been applied in the past though not overtly. The difference in rate of growth under similar c...
by Les.Needham
Fri Aug 10, 2012 11:44 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Rebutia pygmaea
Replies: 12
Views: 5073

Re: Rebutia pygmaea

Phil_SK: I checked out the article you linked to. Very interesting. The final paragraph was encouraging: "The results of our molecular phylogenetic analyses do not support either rigorous and schematic lumping of genera, as was done in recent classifications of Cactaceae, or extensive splitting...
by Les.Needham
Fri Aug 10, 2012 9:02 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Rebutia pygmaea
Replies: 12
Views: 5073

Re: Rebutia pygmaea

I can well see the taxonomist's point of view, wishing to nail down the evolutionary tree. Perhaps the taxonomist should remember the collector's viewpoint (were taxonomists once collectors?). The collector wants to be able to describe a species, not a clump of species that possibly happen to have t...
by Les.Needham
Thu Aug 09, 2012 10:19 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Rebutia pygmaea
Replies: 12
Views: 5073

Re: Rebutia pygmaea

Aylosteria! Where did that come from? Was Backeberg right after all?
by Les.Needham
Thu Aug 09, 2012 8:59 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Rebutia pygmaea
Replies: 12
Views: 5073

Rebutia pygmaea

In the New Cactus Lexicon, Rebutia pygmaea has 32 synonyms, 13 which are ascribed to Rausch and 16 to Ritter. This can mean that either (A) Rausch and Ritter were out to find as many new Rebutias as they could or (B) Hunt is hell-bent on simplifying the classification to such an extent that his spec...
by Les.Needham
Mon May 07, 2012 7:22 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What's this?
Replies: 3
Views: 1894

Re: What's this?

I suppose it could be A.americana
by Les.Needham
Mon May 07, 2012 5:28 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What's this?
Replies: 3
Views: 1894

What's this?

Not my plant, not my garden, but a friend of mine owns both, and wants to know what the plant is. I just don't know enough about succulents to help him out. I can'teven decide if it's an Aloe or an Agave!
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by Les.Needham
Thu Apr 26, 2012 6:55 pm
Forum: The Cactus & Succulent Plant Forum
Topic: A mealy bug saga
Replies: 11
Views: 3661

A mealy bug saga

The main nursery that I use imports all of its plants from some Dutch company. I have noticed a type of mealy bug on some of the plants, a type that I have not seen before: abundant wool, flat elongated bodies. Then I saw it on a lemon tree and was told that it is a common pest of lemon trees known ...
by Les.Needham
Sat Apr 21, 2012 7:06 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Identities needed
Replies: 10
Views: 3155

Re: Identities needed

I can't match up any of them. Particularly carmenae!
by Les.Needham
Sat Apr 21, 2012 6:33 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Identities needed
Replies: 10
Views: 3155

Identities needed

It is a pain being able to buy decent plants but always unnamed. That is the situation in Cyprus. Can anyone help me with the names of these three? Please.
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