BIADELPHIA DECANDRIA. 
4^5 
574 . PSORALEA. Gen.pl 1210. 
So P, tota canescens j foliis breviter petiolatls trifoliatis, 
spicis laxifloris, floribus pedicellatis, calycibus villo- 
sissimis. Mich.ji.amer.'l.p.bJ. 
In barren sandy fields of Carolina and Georgia. Jul 3 % 
V. s. Resembles in appearance Cytisus Cajan. 
2. P. parce pubescens j foliis ternatis : foliolis lanceolatis, 
spicis oblongis, bracteis lato-cordatis longissime acu- 
minatis, leguminibus rotundatis nervoso-rugosissimis. 
— -Mich.fi. amer. 2, p. 58. 
Melilotus flore violaceo, odore remisso. Clayt. n. 103. 
Trifolium psoraloides. Walt.fi. car. 184. 
In pin-e-barrens : Carolina to Florida. %, June — Aug. 
V. s. in Herb. Leconte. Flowers blue. 
3. P. pubescens, ramosissimaj foliis ternatis: foliolis el- 
lipticis utrinque rugoso-punctatis, pedunculis axillari- 
bus folio longioribus sub-3 -floris. 
On the banks of the Missouri. M. Lewis. 71 . Sept. 
V. s. in Herb . Lewis. Flowers very small, pale blue. 
4. P. pubescens j foliis ternatis : foliolis elongato-lanceola- 
tis, petiolis crassis, spicis axillaribus folio vix longiori- 
bus densifloris, floribus pedicellatis, bracteis pedicello 
vix longioribus, dentibus calycis coloratis. 
On the banks of the Missouri. % . July, Aug. v. s. 
Flowers bright blue, small. 
5 . P. undique argenteo-tomentosa ; foliis ternatis : foliolis 
lanceolato-oblongis, spicis terminalibus interruptis, 
bracteis ovatis acuminatis, floribus suboppositis ses- 
silibus. 
On the banks of the Missouri. %. v, s. Flowers 
purple : the silvery tomentum gives this plant a par- 
ticularly handsome appearance. 
6. P. undique villosa ; foliis digitato-quinatis: foliolis lan- 
ceolatis in?equalibus planis integerrimis, spicis axillari- 
bus densifloris, laciniis calycis lanceolatis corolla paulo 
brevioribus, leguminibus ensiformi-rostratis, radice 
fusiformi. 
On the banks of the Missouri. M. Lewis. I/. June, 
July. V. s. in Herb. Lewis. Flowers pale blue. 
Tota planta pilis longis aibidis tecta. Radix fusiformis, 
crassa, exsiccatione farinosa. Caulis erectus, subra- 
mosus, teres, sulcatus, pedalis et ultra. Folia alterna. 
canescens. 
melilotoides. 
tenuifiora. 
lanceolata. 
argophylla. 
esculenta. 
