328 RyDBERG: STUDIES ON THE Rocky MOouNTAIN FLORA 
are densely stellate-pubescent and their tips not incurved but 
spreading. The pods of D. andina and D. pectinata are nearly the 
same, but that of D. densiflora is larger and more elongated. 
Nelson, in the New Manual of the. Central Rocky Mountain 
Region, cited Draba uber A. Nels., D. aureformis Rydb., and D, 
decumbens Rydb. as synonyms of D. luteola Greene. The spe- 
cies he described under that name is evidently D. aurea Vahl, 
of which D. uber apparently is a synonym. D. luteola and D. 
aureformis, on the contrary, are closely related to D. surculifera A. 
Nels. but have light yellow flowers. A “ conservative” botanist 
would unite the three. D. decumbens Rydb. is not closely related 
to either. Very likely Professor Nelson had not seen a specimen 
of the last named. 
Fortunately, Draba lapilutea A. Nels. and D. i a 2 
A. Nels. become synonyms of D. praealta Greene. Dygba defle 
Greene has erroneously become D. reflexa in the New Manual. 
New York BotanicaL GARDEN. 
