DiADELPHiA DECANDRIA. 
475 
574 . PSORALEA. Gen,pL 1210. 
1. P. tota canescens j foliis breviter petiolatis trifoliatis, 
spicis .laxifloris, floribus pedicellatis, calycibus villo- 
sissirnis, Mich.Ji. amer. 2. p. 57- 
In barren sandy fields of Carolina and Georgia. July. 
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.Ji. amer. 2, p. 58. 
Melilotus flore violaceo, odore remisso, Clayt. n. 103. 
Trifolium psoraloides. Walt.Jl. car, 184, 
In pin^-barrens : Carolina to Florida. %, June — Aug. 
V. s, in Herb. Leconte. Flowers blue. 
3 . P. pubescens, ramosissima 5 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. 1/ . 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. I/. 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. 11. 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. 
tenuijlora. 
lanceolata. 
argophylla. 
esculenta. 
