Part '« 1919 1 FABACEAE: PSORALEAE 3 



whitish; banner broadly obovate, retuse, with rounded basal lobes; blades of the wings oblong 



tentVfiT t Si u u C ; ^° Se u thE keel " PetalS br ° adly 1Unate ' With a rounded basal lobe; 

 tenth filament free half its length; pod glabrous, ovate-oblong, wrinkled. 



Type locality: Cape of Good Hope 



T? I I S ™ BU " ON: Adventive on Mt. Tamalpais. California; native of South Africa 



Illustrations: Commehn, Hort. Med. Amst. 2: pi. 106} Bot. Mag. pi -%6 ; Bot'. Cab. pi. 1559. 



Excluded species 

 Psoralea longiFolia Pursh, Fl. Am. Sept. 741. 1814. A species of Phaca 

 pl, a cos SOR ^ EA PARVIFL ° RA P ° ir - in Lam " Enc y c ' Su PP ] - 4: 59 °- 1816. A species of Micro- 



Psoralea multijuga Ell. Bot. S. C. & Ga. 2: 19S. 1822. Unknown to the author but 

 evidently not belonging to Psoralea, or any of its segregates. 



chos^^ 1 '^ ALNIF ° UA BertoL Mem - Accad " Bol °gna 2: 274. 1850. A species of Rhyn- 

 chosia SORAL * A AL ° PECURINA Berto1 - Mera - Accad - Bologna 2: 275. 1850. A species of Rhyn- 

 of pZZT^ LUTE ° LA &SS " & M ° C ' PI ' N ° V - HiSP - Ul - 18S9 - Unknown ! P^aps a species 



s P J^Tpa A os2 YSTA ™ A SeS " & M ° C - P1 " NOV ' HiSP ' 12K 1889 ' Unkn ° Wn: P£rha P s a 

 Psoralea purpurea Sesse & Moc. Fl. Mex. 1S5. 1S96. Unknown. 



2. CULLEN Medic. Vorles. Churpf. Phys.-Oek. Ges. 2: 380. 

 1787. 



Dorychnium (Royen) Moench, Meth. 109. 179-1. N ot Dorvcnium Mill 17S4 

 Lolodes (Siegesb.) Kuntze, Rev. Gen. 193. 189L K L 1/54 ' 



Annual or perennial herbs, shrubby if at all only at the base. Leaves pinnately 1-3- 

 f chelate, conspicuously glandular-dotted; leaflets coarsely dentate. Flowers in axillary ped- 

 uncled spikes. Calyx strongly glandular-punctate; tube campanulate, not gibbous, 5-lobed- 

 lowest lobe usual y longest and the upper two often more or less united. Corolla scarcely 

 longer than the calyx-lobes; banner free, obovate, with a short straight claw, the margins merely 

 spreading; wings equaling the banner, the blades rather narrow, mostly oblong, with a prom- 

 inent basa lobe, longer than the free claws; keel-petals shorter than the wings, the blades 

 broadly obliquely lunate, united at the rounded apex, each slightly united with the adjacent 

 vmg at the base, the claws free. Filaments of nine of the stamens united into a split 9-toothed 

 tube the teeth subequal, the tenth filament free except at the base. Style merely curved 

 towards the end; stigma capitate. Pod conspicuously glandular-warty, with a short erect 

 beak; pericarp thin, adherent to the seed. Seed obliquely reniform. 

 Type species, Psoralea corylifolia L. 



1. Cullen americanum (L>) Rydberg. 



Psoralea americana L. Sp. PI. 763. 1753 

 Psoralea dentata DC. Prodr. 2: 221. 1825. 

 Lolodes americanum Kuntze, Rev. Gen. 193. 1891. 



A perennial herb, somewhat shrubby at the base; stem erect, 5 dm. high or more, branched 

 glabrous or nearly so, usually conspicuously glandular-dotted; leaves pinnately 3-foliolat e : 

 stipules lanceolate, acuminate; petioles 4-6 cm. long; leaflets 2-6 cm. long, irregularly dentate' 



SETtE t * f' abrOUS ' P , Ub r ent ° nly ° n ^ VdnS be " eath ' W * h "-ero^ minute 

 g lands, the terminal one rounded-oval or suborbicular, the lateral ones obliquely rounded- 



late a'cum^t V T "'' fT " ^ ^ ^ h -utulous-canescent? bracts lanceo- 

 ate acuminate, 3 mm. long; pedicels 1 mm. long or less; calyx hirsute, conspicuously punctate- 

 tube 2.5 mm. long; upper 4 lobes lanceolate, acute, 3 mm. long, the lowest lobe oblong-lanceo- 

 late 4.5 mm. long, the upper two united half their length; banner obovate, retuse- wings 

 semihastate, nearly 4 mm. long, with oblong blades and a large ovate basal lobe; b'ades of 



