Weedy Tulips - T. clusiana

Joey Russell rjrussell@cot.net
Mon, 30 Mar 2015 10:39:14 PDT
You are all great!  Not only are the Tulips on the hillside laughing but I 
am too  (and learning).  Remind me, doesn’t pentaploid mean 5 homologous 
pairs of chromosomes which is what gives "plants" their great diversity? 
Plasticity I think the word is, leading to a great variety?

Joey Russell

-----Original Message----- 
From: Jim McKenney
Sent: Monday, March 30, 2015 7:17 AM
To: Pacific Bulb Society
Subject: Re: [pbs] Weedy Tulips - T. clusiana

Bob Nold wrote: 'The contemporary (insofar as the publication date of the 
monograph, 2013, can be considered contemporary) concept is the same as DC’s 
concept. It has not changed. Tulipa clusiana DC is and always has been T. 
clusiana DC. "
Isn't this a good example of confusing nomenclature and science? Yes, the 
pentaploid form has been Tulipa clusiana since the time of DC. But the 
combination of names "Tulipa clusiana DC " no longer means simply the 
pentaploid form: it includes all the varies forms (diploids, triploids, 
tetraploids, pentaploids).
To say that the modern concept is the same as de Candolle's is to overlook 
the fact that de Candolle's name Tulipa clusiana was coined for a single 
entity, yet our contemporary usage includes a number of other forms which 
probably would have astonished de Candolle.  And Tulipa stellata (later 
determined to be a tetraploid form) in fact was known during de Candolle's 
lifetime.
Jim McKenney





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