1054 
OXYTROPIS Lamberti. 
Mr. Lamberts Oxytropis. 
DIADELPHIA DECANDRIA. 
Nat. ord. Lecuminosx. Tribus Loteæ Decandolle. 
OXYTROPIS Dec. Calyx 5-dentatus. Corolle carina in mucro- 
nem exsertum summo dorso desinens. Stamina diadelpha. Legumen bilo- 
culare aut semibiloculare, suturá superiore introflexa. Herbe foliis impari- 
pinnatis, pedunculis axillaribus radicalibusque, floribus spicatis. Dec. 
prodr. 2. 275. 
$. 1. Acaules, nempê caulibus subnullis, stipulis petiolo adnatis, foliolis 
more solito conjugatis nec verticillatis. ; : 
O. Lamberti; acaulis sericeo-pilosa, foliolis lanceolatis acutis remotiusculis, 
scapo foliis sublongiore, floribus spicatis capitatisve, bracteis lanceolato- 
linearibus calyce sericeo sub-brevioribus. Dec. prodr. 2. 277. 
O. Lamberti. Pursh. fl. bor. am. 2. 740. Nuttall genera, 2, 98. Bot. 
mag. 2147. 
A handsome hardy perennial, native, according to Mr. 
Nuttall, of the woodless hills of the Missouri, from the 
river Platte to the mountains. Its pods are stated by the 
same author to be “ smooth, black, and small, subterete, 
acuminate, and partly bilocular.” 
We have admitted it as a distinct species upon the 
authority of the various authors above quoted; but we 
confess we cannot ascertain the distinction between It and 
O. grandiflora, especially the deep-blue-flowered variety 
called leptoptera by M. Decandolle. Our Dahurian speci- 
mens of that variety, for which we are indebted to the 
kindness of Dr. Fischer, agree very closely with the annexed 
figure. They differ chiefly in having a taller scape and 
longer and broader bracteæ. 
Our drawing was made some years since, from speci- 
mens communicated by Aylmer Bourke Lambert, EX. 
