MR. GEYER'S ROCKY MOUNTAIN PLANTS. 211 
Am. 1. p. 150. Torr. et Gr. Am. 1. p. 331. A. succulentus, 
Richards. App. Frankl. ed. 2. p. 29. Lindl Bot. Reg. 1. 
1324. 
Has. Fertile plains of Kanzas River, near Vermillion River, 
instony sunny situations. Corolla pale purple. Legume 
oval, large, fleshy... Stems prostrate. June. (n. 128.) 
5. A. * humilis," Geyer, mst.; cano-sericeus, radice fusiformi, 
folis omnibus . radicalibus petiolatis pinnatis, pinnis $ 
unciam longis, obovato-ellipticis utrinque plerumque acutis, 
stipulis—?, scapis folio brevioribus paucifloris, legumine 
(uneiam longo) ovato acuminato pilosulo carnoso crasso 
compresso ruguloso apice uncinato deflexo. 
Has. On a stony ridge in the Black Hills, (n. 125.) Upper 
Platte River, Gordon.—This appears to be a very distinct 
species from any hitherto described; but from the imper- 
fect state of the specimens, Iam obliged to speak with 
caution. One specimen is in the collection of Mr. Gordon 
from the Upper! Platte; from the scape of which the 
flowers or legumes lieb: fallen: the other is from Mr. 
Geyer and has a solitary legume, a good deal resembling — — 
that of A. caryocarpus. The great size of the niue ase 
the entirely radical leaves and their ler: Mod 
. Characteristic of the species. ^ — | 
(6 A: glareosus, Dougl.in Hook. Bhs Bor. Am. l4 
.. Torr. et Gr. Am. 1. p. 334. à po 
| Haz. On a calcareous sock aD cc : South Buff,” near Horse ee 
= River of the Upper Platte. June. (n. 39.) bus be 
1. A. leucophylius 2, Torr. et Gr. Am.1.p.336. — ^ 
: aa On layers of stiff, ferruginous clay-banks on the Trappe 
Mountain declivities ; Upper Kooskooskee. May. (n. 378.) 
| This plant is evidently allied to A. Canadensis, but has 
the flowers in longer spikes and nearly erect. The 
Js sprinkled with black silky hairs. - Fruit suboylin 
Compressed, nearly an inch long, glabro 
. *urrow on one side and a keel on the othe 
seems to agree with the descriptio: 
es P to be found I | Do aglas 
ees ume 
