iDIADELPHIA DECANDRIA. 
475 
574. PSORALEA. Gen.pl 1210. 
1. P. tota canescens; foliis breviter petiolatis trifoliatis, 
spicis laxifloris, floribus pedicellatis, calycibus villo- 
sissimis. Mich. Jl. amer. 2. p. 57 . 
In barren sandy fields of Carolina and Georgia. July. 
v. s. Resembles in appearance Cytisus Cajan. 
2. P. parce pubescens ; foliis ternatis : foliolis lanceolatis, 
spicis oblongis., bracteis lato-cordatis longissime acu- 
minatis, leguminibus rotundatis nervoso-rugosissimis. 
— Mich.fi , amer. 2. p. 58. x 
Melilotus flore violaceo, odore remisso. Clayt. n. 103. 
Trifolium psoraloides. Walt. fi. car. 184. 
In pine- barrens : Carolina to Florida. 1/. June— Aug. 
v. s. in Herb. Leconte. Flowers blue. 
3. P. pubescens, ramosissima; foliis ternatis: foliolis el- 
lipticis utrinque rugoso-punctatis, pedunculis axillari- 
bus folio longioribus sub-3-floris. 
On the banks of the Missouri. M. Lewis. 2£ . Sept. 
v. s. in Herb . Lewis. Flowers very small, pale blue. 
4. P. pubescens ; 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. Tj . . 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. 71 . 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 inaequalibus 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. 71 . June, 
July. v. s. in Herb. Lewis. Flowers pale blue. 
Tota planta pilis longis albidis tecta. Radix fusiformis, 
crassa, exsiccatione farinosa. Caulis erectus, subra- 
mosus, teres, sulcatus, pedalis et ultra. Folia alterna. 
canescens. 
melilotoides. 
tenuiflora . 
lanceolata. 
argophylla. 
esculenta » 
