COMMERCIAL DUTCH-BULB CULTURE. 
41 
IX. Poeticus varieties. 1 — Snow-white perianth and variously colored short 
trumpet. 
Praecox Grandiflora. Minerva. 
Cassandra. The Bride. 
Ornatus (fig. 29). 
X. Double varieties. 
Trumpets.— Telamonius Plenus (Double Van Sion) (fig. 30). 
Incomparabilis. — Argent, Sulphur Phoenix (C'odlins and Cream). 
Primrose Phoenix. 
1 1 
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Fig. 28. — A block of 25,000 Elvira narcissi. Experimental planting at Bellingham, Wash. 
VARIETIES OF TULIPS. 
The classification of the tulip is purely artificial and a complicated 
subject, most seriously attempted in 1917 by a committee of the Eoyal 
Horticultural Society of England. 2 
Tulips are first divided into early, late, or May flowering, which 
need no definition, and species which are found native. The earlies 
are divided into the Due van Tholl, which are very early dwarfs, the 
singles, and the doubles. 
The lates are divided (1) into the Cottage subsection, which is a 
catchall that is not definable except that its members do not belong 
in the other groups ; (2) breeders which are self -colors ; (3) broken or 
mosaic tulips, parrots which have laciniate floral segments; and (4) 
double late tulips. 
1 Commonly called " narcissi." 
2 Beport of the Tulip Nomenclature Committee, Royal Hort. Soc, London. 1917. 
