F. 



LEGUMINOS^. LXXVIII. Psoralea. 



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Capilale-Qowered Psoralea. Fl. June, Aug. Clt. 1815. Shrub sufficiently distinct from P. frutescens of Poir, diet. 5. p. 684. 



There is a plant described in Berg. cap. 221. which differs from 



2 to 3 feet. 



29 P. rotundifo'lia (Lin. fil. suppl. 338. Thunb. 1. c.) leaves this in the spikes of flowers being terminal. Flowers with the 

 simple, ovate, entire, glabrous ; heads of flowers terminal, and vexillum and keel purple, and the wings almost white, smelling 



]i^ are, as well as the bracteas, villous. T2 



of Good Hope. This species belongs probably to the following scent of bitumen. 



Native of the Cape like black currants. The leaves when handled emit a strong 



division. 

 Round-leaved Psoralea. Shrub. 



Bitmnen'scented Psoralea. Fl. April, Sept. Clt. 1570. Shrub 



2 to 3 feet. 



* ♦ » 



37 P. sERi'cEA (Poir. diet. 5. p. 687.) leaves pinnately-tri- 



thcir tops. 



Peduncles axillary, hearing capitate spikes of flowers at f^YxaiQ ; leaflets ovate-lanceolate, silky beneath ; peduncles axil- 



lary, 2 or 3 times longer than the leaves ; heads of flowers de- 



30 P. coRYLiFOLiA (Lin. spec. 1075.) leaves simple, ovate, pressed, involucrated ; leaflets of the involucrum about equal in 



cordate, a little toothed ; heads of flowers axillary, ovate, on length to the calyx. Fj 



Native of the Cape of Good 



long peduncles. 0. G. Native of the East Indies and Arabia. 

 Curt. bot. mag. 665. Trifolium unifolium, Forsk. descr. 140. 

 Flowers violaceous or pale flesh-coloured. 



Ilazel-lcaved Psoralea. Fl. Ju. July. Clt. 1739. PI. 2 feet. 



31 P. virga'ta (Nutt, gen. amer. 2. p. 104.) leaves simple, 

 very remote, almost glabrous, linear-lanceolate, radical ones ob- 

 long-ovate; spikes of flowers ovate-oblong, on peduncles, which 

 are shorter than the leaves : 



bracteas long, subulate, deciduous. 

 Native of the west of Florida, between St. Mary's and 

 Satilla river. 



%W. 



as the leav 



Stem striated, twiggy, a little pubescent, as well 

 Flowers blue : the vexillum finely striated 



TwifTgy Psoralea. 



32 P. acau'lis (Stev. in Bieb, fl. taur. 2. p. 206.) radical 

 leaves trifoliate, on long petioles ; leaflets ovate, obtuse, sharply 



Hope. P. pedunculata, Ker, bot. reg. t. 223. Stipulas narrow, 

 acuminated. Corolla bluish-violet. 



Silky Psoralea. Fl. Aug. Oct. Clt. 1815. Sh. 2 to 3 feet. 



38 P. MuTisii(H. B. et Kunth, nov. gen. amer. 6. p. 487. 

 pi. legum. 191. t. 54.) leaves trifoliate ; leaflets lanceolate-oblong, 

 quite entire, glabrous, having the middle nerve, petioles, and 

 branches pilose ; spikes axillary, pedunculate, oblong-cylin- 

 drical, dense-flowered; calyx clothecl with adpressed pili. ^ . ? 

 S. Native of South America, near Santa Fe de Bogota, and 

 about Quito. IndigoferaMexiciina, Lin. fil. suppl. 335. Flowers 

 white. 



PI. 2 feet. 



Mulls' s Psoralea. Shrub 2 to 3 feet. 



/' 



*^a»,.o niiuiirfit^, K)i\ loiiff peuoies ; leaneis ovate, ooiuse, snarniy * *j - , *^..^ p.:^^^^»i;^ vii 



tnntlio.l fl,.. w.: ni 1 ^ ^^ -1 J 1 J- 1 1 or racemes at their tops, roikaaenice^ L.tL 



lootned, the middle leaflet sessile ; peduncles radical, very long. * 



%. H. Native of Western Iberia. Spike of flowers oval-oblong. 39 P. pentaphy'lla (Lin. spec. 1076.) leaves with 5 leaflets, 



Flowers purplish. Petioles pubescent. Leaves hairy, as w^ell as palmately disposed^, leaflets unequal, oval, acute at both ends, 



than the leaves ; spikes of 



of calyx obtuse. 

 Native of North 



F. 



the peduncles. Calyx beset'with black hairs. 



Stemless Psoralea. PI. 1 foot. 



33 P. arena^ria (Nutt. gen. amer. 2. p. 103.) leaves trifo- 

 liate, rather pubescent ; leaflets linear-lanceolate, obtuse, mucro- 

 nulate ; peduncles axillary, longer 

 flowers capitate; bracteas deciduous; teeth 

 nearly equal in length, glandular. % . 

 America, on the banks of the river Missouri. 

 lata and P. elliptica, Pursh, fl. sept. amer. 2 

 Koot creeping. Stems dichotomous, erect, 

 blue. The leaves are aromatic when b 



Sand Psoralea. 



S4 P. Sibi'rica (Poir. suppl. 4. p. 587.) leaves pinnately-tri- 

 lohate; leaflets elliptic, obtuse, glabrous, whitish beneath, some- 

 ^*nat emarginate and mucronulate at the apex ; racemes very 

 short, axillary, glandless ; segments of the calyx linear, elon- 

 gated, acuminated, and rather villous. It. F. Native of Sibe- 



pubescent, and glandular, and with the margins ciliated ; stem 

 and petioles villous. I2 • ? 2^.? G. Native of Mexico. B. 

 Juss.act. par. 1744. p. 381. t. 17. The roots are thick, and are 

 supposed to be the contrayerva of the shops. 



Five-leaved Psoralea. Shrub. 



40 P. escule'nta (Pursh. fl. sept. amer. 2. p. 475. t. 22.) 

 plant hairy ; leaves with 5 leaflets, which are disposed pal- 



Fl. July, Aug. 



ruised. 



Clt. 18^3. 



Psoralea lanceo- mately ; leaflets ovate-elliptic, glabrous above ; spikes of flowers 



p. 475 and 741. somewhat capitate, pedunculate, axillary; bracteas ovate, acu- 



Flow^ers purphsh- minated, each enclosing 3 flowers ; corolla hardly longer than 



the calyx. %, F. Native of North America, on the elevated 



PI. 1 foot. 



plains of the river Missouri. Flowers blue. Root simple, some- 

 what fusiform, bulbous above the middle ; it is rather insipid in 

 taste, but not disagreeable either raw or boiled, the latter is the 

 common mode of preparation among the savages ; its texture is 

 lamellated, always tenacious, solid, and never farinaceous ; it is 

 also somewhat medicinal, and operates as a diuretic. It is known 

 to the Canadian boatmen by the rxame o^ Pomme de prairie. 

 Esculent-rooted Psoralea. Fl. Ju. Jul. Clt. 1811. PI. 1 ft. 

 35 P. PAL;ESTi^NA(Gouan7ill.M.3leavesp^ 41 P. cuspida^ta (Pursh. fl. sept. amer. 2. p. 741.) plant 



lower leaflets ovate, superior ones lanceolate ; petioles pubes- villous ; leaves with 5 leaflets, which are disposed m a palmate 



na. Flowers pale-blue. 



i^tbenan Psoralea. 



PI. 1 to 2 feet. 



\ll: "^'^^t^d; peduncles axillary, 2-3-times longer than the manner; leaflets obovate, mucronate ; ^^P''^^^^ f^^J^'^^^^^^^^ 



ea\cs; spikes of flowers capitate ; calyxes pubescent, at length " ' ' ~ " " " 



a nttle inflated, -if V xr^*-:.,^ ^r t>«i^«*;«« «^,,tT^ ^f Tmirin 



IimiillCi , icain-io »_^wv»«*,v., ...«^-«.— — , -I ^' 



flowered ; calycine segments as well as the bracteas ovate, cus- 



8pecies, hut the plant is nearly scentless. 

 ^a/e^Yme Psoralea. Fl. July, Aug. \ 



, , flated. i;.F. Native of Palestine, south of Tauria, pidate, conspicuously dotted, i; . F Native of Upper Lom- 

 and about Constantinople, and now in the south of France. siana, on the high plains of the river Missouri P. macrorhiza, 

 i'>T'^°rt.vind. 2. t.l84. D. C. fl. fr. suppl. p. 554. P. bitu- Fras. cat. 1813. Root large, tuberous, branched. Flovyers b ue. 

 minosa, Pall. ined. Flowers blue Very like the following Cwsprffl/e-bractead Psoralea. Fl. Jul. Aug. Clt. 1811. PI. 1 ft. 



42 P. ixcANA (Nutt. in Fras. cat. 1813. gen. amer. 2. p. 

 102.) plant silky and canescent ; leaves having 3 or 5 leaflets, 

 disposed in a palmate manner ; leaflets elliptic-lanceolate ; spikes 

 few-flowered, interrupted; bracteas acuminated, 3-flowered. 

 %.V. Native of North America, on the plains of the Missouri. 



3 -™. .,.„...^,..„j.. Clt. 1771. PI. 2 feet. 



Wr.. , ^''T^'MiNosA (Lin. spec. 1075.) leaves pinnately-trifo- 



a^ilh Jf /'/ pvate-lanceolate ; . 

 1 arv 9-1 .. , . -. . -^_ spikes of flowers 



Native of the south of 



ill. 614. f. 1. There is a 



Besl. eyst. aest. t. 1 1 . f. 2. Do- 



•,, .".i».cv^iaic i petioles pubescent; peduncles 



onlu?' ^i~''"ies longer than the leave 

 ^ap'tate ; calyxes pubescent. 



>2. 

 Lam. 



F. 



Root flagel- 



J^^'ety With narrower leaflets. _....,... ^. - 



>'-nmm angustifoliuna, Moench. Perhaps this last variety is not tomentum. 



^ ' Dd 2 



P. argophy'lla, Pursh. fl. sept. amer. 2. p. 475 

 lately-fusiform. Flowers small, azure-blue. L'ke /». esculenta, 

 but differs in being clothed with soft, white, and silky villi, but 



