Weedy Tulips - T. clusiana

penstemon penstemon@Q.com
Sun, 29 Mar 2015 19:50:25 PDT
>I don't have a copy of the Kew monograph to check, but I'll bet that the concept of Tulipa clusiana presented there is the same concept of that species which has existed since DC named the species. But the contemporary concept is different, although you might never guess it from the way that concept is sometimes expressed in the nomenclature.

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. First flowered in 1607. Illustration by Redoute: http://plantgenera.org/illustration.php/…
Tulipa clusiana DC, syn. T. stellata Hook., pentaploid. Red and white flowers. Narrow upright leaves, as with the rest that follow. 
T. clusiana forma cashmeriana (A.D. hall) Raamsd, syn. T. aitchisonii subsp. cashmeriana A.D. Hall, “primrose yellow” flowers, diploid.
T. clusiana forma diniae Raamsd., syn. T. clusiana var. chrysantha A.D. Hall, T. stellata chrysantha A.D. Hall and also Hook., red and yellow flowers, tetraploid. 
However, there is also a T. clusiana forma stellata “white with a crimson flush but with a yellow blotch and stamens”, but oddly there is no lengthy description of this in the monograph. 
Bob Nold
Denver, Colorado, USA
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