8 NORTH AMERICAN FLORA [Volume 24 



leucous, the keel with a dark-purple tip; banner broadly obovate, with more or less distinct 

 basal lobes and a short somewhat curved claw; wings and keel-petals as in Orbexilum, but the 

 claws of the former varying from equaling to half as long as the blades. The staminal tube as 

 in that genus. Style usually more abruptly bent above. Stigma globose, bearded. Pod 

 obliquely oval or ovate, with a short and slender beak, pubescent, included in the calyx; peri- 

 carp thin, free from the seed. Seed dark-brown or black, oval-reniform, smooth and shining. 

 Type species, Psoralea macrostachya DC . 



Stem erect. 



Bracts lanceolate to ovate, not surpassing the flowers. 



Corolla ochroleucous, whitish, or pale, with a purple -tipped keel; plant 

 glabrous or nearly so. 

 Plant shrubbv below; flowers 8 mm. long, in elongate lax racemes; 



leaflets narrowly lanceolate. '■ H . glandulosa. 



Plant herbaceous; flowers more than 10 mm. long, in short dense 

 racemes; leaflets broader. 

 Calvx inflated in fruit; leaflets broadly rhombic-ovate to sub- 

 orbicular. ,. u . 2 - H - Physodes. 

 Calvx not inflated in fruit; leaflets ovate-lanceolate or rhombic- 



lanceolate. 3 - H - r 'S> da - 



Corolla purple or bluish; at least the leaves distinctly pubescent, except 

 in the first species. 

 Lowest calyx-lobe not twice as long as the rest, about equaling the 



corolla. _ , ... 



Leaves glabrous; racemes short, less than 5 cm. long. 4. H. rhomboidea. 



Leaves moreor less pubescent; racemes elongate, 5-12 cm. long. 5. H. macrostachya. 

 Lowest calyx-lobe more than twice as long as the rest and longer 

 than the corolla. 

 Stem glabrous or nearly so; calyx and bracts pilose. 6. H. longiloba. 



Stem eravish-puberulent, almost velutinous; calyx and bracts 



long villous. 7 - H - * Mosa - 



Bracts broadly ovate, abruptly acuminate, exceeding the flowers. 

 Inflorescence much exceeding the leaves; corolla 8-9 mm. long. 



Corolla yellowish with purple-tipped keel; bracts conspicuously 



glandular, sparingly short-pubeseent. 8. "■ HaUn. y 



Corolla purplish; bracts decidedly villous. 9. «■ Uouglasu. 



Inflorescence usually shorter than the leaves; corolla about 15 nun 



j 10. H. slrobihna. 



Stem prostrate; leaves long-petioled, with orbicular leaflets; corolla 15 mm 



long, ii- "• orbicularis. 



1. Hoita glandulosa (L.) Rydberg. 



Psoralea glandulosa L. Sp. PI. ed. 2. 1075. 1763. 



? Psoralea hitca Molina. Sagg. Chili 163. 1782. Not. P. lulea Cav. 1797. 



? Psoralea Cullen Poir. in Lam. Encyc. 5: 685. 1804. 



Lotodes glandulosum Kuntze, Rev. Gen. 194. 1891. 



A low shrub, 1 m. high or more; branches ascending, glabrous or slightly puberulent, with 

 elevated black glands; leaves 3-foliolate; stipules subulate, 3-4 mm. long; petioles 2-5 cm. 

 long; leaflets lanceolate, 3-5 cm. long, 1-1.5 cm. wide; peduncles 3-5 cm. long; racemes lax, 

 5-10cm. long; bracts oval, cuspidate, 3 mm. long; pedicels very short; calyx strigose, conspicu- 

 ously punctate, nearly equally cleft; tube 3 mm. long, slightly gibbous at the base above; lobes 

 lanceolate, acute or acuminate, 3-ribbed, the lowest 4 mm. long, the rest 3 mm. long; corolla 

 pale, with a purplish keel, 8 mm. long; banner broadly obovate, with a short claw; blades of 

 the wings obliquely lunate, with an ovate acute basal lobe, 7 mm. long, those of the keel-petals 

 broader, 5 mm. long, the claws of both 3 mm. long; tenth filament free or nearly so; pod ovoid, 

 6 mm. long, strigose. 



Distribution: Escaped from cultivation near Berkeley. California; native of Chile to Peru. 

 Illustrations: Bot. Mag. pi. 990; Sweet, Brit. PI. Gard. pi. 296; FeuiHee, Jour. Obs. 3: 

 pi. 3 (right figure). 



2. Hoita physodes (Dougl.) Rydberg. 



Psoralea physodes Dougl.; Hook. Fl. Bor. Am. 1: 136. 1831. 

 Lotodes physodes Kuntze, Rev. Gen. 194. 1891. ■ 



A perennial, with a rootstock; stem erect, 3-8 dm. high, angled and grooved, glabrous or 

 sparingly black-hairy; leaves pinnately 3-foliolate, rarely 5-foliolate; stipules 4-6 mm. long, 

 lanceolate, acute, reflexed; petioles 3-5 cm. long; leaflets with short hairy petiolules, 2-6 cm. 



