blADELFHIA DECANDRIA. 



475 



tenuiRora. 



lanceolata. 



574. PSORALEA. Gen.pl. \2\0. 



3. P. tota canescensj foliis breviter petiolatis trifoliatis, canescens. 



spicis laxifloris, floribus pedicellatis, calycibus villo- 



sissimis. Mich.Jl. amer. 1. p. 57- 

 In barren sandy fields of Carolina and Georgia. July. 



V. s. Resembles in appearance Cythus Cajan. 

 2, P. parce pubescens ; foliis ternatis : foliolis lanceolatis, melilotoides. 



spicis oblongis, bracteis lato-cordalis longissime acu- 



minatis, leguminibus rotundatis nervoso-rugosissimis. 



— Mich.fl. amer. 2. p. 58. 

 Melilotus flore violaceo, odore remisso. Clayt. n. 103. 

 Trifoliilm psoraloides. Walt.Ji. car. 184. 

 In pine-barrens : Carolina to Florida. If., 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, if . 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, l/ . July, Aug. v. s. 

 Flowers bright blue, small. 



5. P. undique argenteo-tomentosa ; foliis ternatis : foliolis argophylla. 



lanceolato-oblongis, spicis terminalibus interruptis, 

 bracteis ovatis acuminatis, floribus suboppositis ses- 

 silibus. 

 On the banks of the Missouri. %. v. s. Flowers 

 purple : the silvery tomentura gives this plant a par- 

 ticularly handsome appearance. 



6. P. undique villosa ; foliis digitato-quinatis: foliolis Ian- esculenta. 



ceolatis insequalibus 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. Ij. . June, 

 July. V. s. in Herb. Leivis. 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. 



