Thu, 13 Nov 2003 11:29:31 PST
Robin wrote

O. gracilis, or something very similar, is sometimes sold in commerce 
as O.
karroica, a name which I have not found in the standard Oxalis 
literature or
IPNI. It is a lovely plant.

--- Like you, I've come across the name O. karroica, but have never 
been able to trace a valid reference to it.

O tenuifolia is rather similar

---Sadly, the flowers are almost over.  However, I'lll try to key it 
out against O. tenuifolia.  My only doubt is that it has red edges to 
the petals, whereas Salter says O. tenuifolia has purple edges.

I've held this view for many years - the spelling is actually 

--- many thanks for noticing my mistake.

 Mary Sue wrote:

I remembered that earlier on the Oxalis group that David Victor told 
a checklist to solve that problem.

Does this checklist tell where each of the species is from or time of

---  The degree of data depends on what Richard could lay his hands on 
at the time of writing, to be honest.  However, it does cover every 
species, sub-species and variety he has been able to trace, as well as 
all of the invalid names and synonyms, with pointers to the correct 
versions.  For each entry he gives the epithet, author, date, and 
journal of publication.  Then, its status, its country and place of 
origin, Basion, as good a description as he could gather, details of 
any illustrations and remarks.  It is the best that I know of and 
certainly surpasses IK.

---  With this in mind, I thought that I would consult it to sort out 
my confusion over O. articulatat and O. crassipes.  Salter handles O 
crassipes, but only as a var. of O. hirta (var. tenuicaulis).  
Richard's entries are as follows:

O. crassipes Urb.  in Eichl. Jahrb. Berl. (1884)
Status:  Species
Habitat/Ecogolgy:   Africa "trop", says Index Kewensis

O. crassipes L. Bolus in Journ. Bo. lxvi:9 (1928)
Status:   invalid name, synonym, see O. hirta L. var. tenuicaulis 
Knuth,  says Salter

So, the name has been used twice to cover two different oxalis.  More 
recently, Index Kewensis has been updated to include O. articulata 
forma crassipes (Urb) Lourteig, published in Phytologia 50: 138 (1982). 
  Prof. Alicia Lourteig is an authority, particularly on the weed forms 
of Oxalis.

Incidentally, once again we see the importance of quoting the authority 
when using names!

Best regards,
David Victor

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