Part 1, 1919] FABACEAE: PSORALEAE 9 



long, 2-4 cm. wide, broadly rhombic-ovate to suborbicular, acute, mucronate, strongly reticu- 

 late, rather sparingly hirsutulous on the veins; peduncles 3-6 cm. long, sparingly hairy; racemes 

 dense and short, 2-3 cm. long; rachis and pedicels strongly black-hairy; pedicels 1-3 mm. long; 

 calyx rather conspicuously glandular-dotted, more or less black- and white-hairy, in fruit en- 

 larged and inflated; tube 4 mm. long in anthesis, 6-7 mm. in fruit; lobes triangular, acuminate, 

 shorter than the tube; corolla about 12 mm. long, ochroleucous, with a purple-tipped keel- 

 banner oblanceolate, obtuse, with rounded basal lobes, tapering into a broad claw; blades of 

 the wings obliquely lunate, with an ovate basal lobe, equaling the claws, those of the keel- 

 petals broader and slightly shorter, with a rounded basal lobe; pod 6 mm. long, oval, compressed, 

 black- and white-hairy, copiously glandular-dotted. 



Type locality: Great Falls of the Columbia. 



Distribution: Vancouver Island to southern California. 



Illustration: Armstrong, Field Book W. Wild Fl. 263. 



3. Hoita rigida (Parish) Rydberg. 



Psoralea rigida Parish, Bull. Torrey Club 19: 91. 1892. 



A perennial; stem erect, 3-6 dm. high, strigose-puberulent and sparingly glandular, angled 

 and striate, branched above; leaves pinnately 3-foliolate; stipules lanceolate or subulate, 1 cm. 

 long or less; petioles 2-4 cm. long; leaflets short-petioluled, ovate, lanceolate and acute, or those 

 of the lower leaves ovate or oval and obtuse, rounded or retuse, glandular-punctate, glabrous 

 above, sparingly pubescent beneath, 3-10 cm. long, 1-5 cm. broad, reticulate, firm; peduncles 

 axillary, 3-7 cm. long; racemes short and dense, 2-3 cm. long; bracts lanceolate, acuminate, 

 4-5 mm. long, white-pubescent; calyx short-pubescent, with mixed white and black hairs, con- 

 spicuously glandular; tube campanulate, 4-5 mm. long; lobes lanceolate, the upper 3-4 mm. 

 long, the lowest one 4-5 mm. long; corolla whitish or ochroleucous with purple-tipped keel; 

 banner oblanceolate in outline, with indistinct rounded basal lobes, tapering into a long broad 

 claw; blades of the wings obliquely lunate, with an ovate basal lobe, those of the keel broader, 

 two thirds as long, with a rounded basal lobe; pod 8-10 mm. long, ovoid, minutely punctate! 

 firm, somewhat roughened, strigose with mixed white and black hairs. 



Type locality: Oak Grove, San Diego County, California 

 Distribution: Southern California. 



4. Hoita rhomboidea Rydberg, sp. nov. 



Psoralen^ macrostachya rhombifoiia Torr. U. S. Expl. Exp. Bot. 269. 1874. Not P. rhombifolia 



A perennial; stem 1-2 m., rarely 3 m., high, glabrous or nearly so, light-green, striate, 

 branched; leaves 3-foliolate; stipules lanceolate or subulate, about 1 cm. long; petioles 3-6 cm! 

 long, glabrous; leaflets broadly lanceolate to rhombic-ovate, 2-7 cm. long, 1.5-4 cm. wide,' 

 glabrous on both sides or sparingly puberulent beneath, acute, with glabrous petiolules; pe- 

 duncles 4-15 cm. long, glabrous; racemes short and dense, 3-5 cm. long; bracts villous, lanceo- 

 late, acuminate, not exceeding the flowers; calyx more or less villous; tube 4 mm. long; lobes 

 lanceolate, the upper two broadly so, 4 mm. long, united one third their length, the lateral 

 ones narrower and slightly shorter, the lowest one broad and 6 mm. long; corolla fully 1 cm. 

 long, purple, the keel with a dark tip; banner broadly obovate, retuse, abruptly contracted 

 into a short claw; blades of the wings obliquely obovate, with a rounded basal lobe, longer than 

 the claw, those of the keel-petals obliquely oval, one third shorter, without a basal lobe; pod 

 ovoid, short-hairy, 7 mm. long. 



Type locality: On the upper Sacramento, California. 

 Distribution: Upper Sacramento Valley, California. 



5. Hoita macrostachya (DC.) Rydberg. 



C. Prodr. 2: 220. 1825. 

 :untze, Rev. Gen. 194. 1891. 



A perennial; stem 5-20 dm. high, glabrous or nearly so or in one form finely grayish-puber- 

 ulent, almost velutinous; stipules 3-5 mm. long, subulate; leaves 3-foliolate; petioles 3-8 cm. 



Psoralea macrostachya DC. Prodr. 2: 220. 1825. 

 Lotodes macros tach yum Kuntze, Rev. Gen. 194. 1891. 



