DICOTYLEDONOUS PLANTS 93 



c. H. parviflo'ra Benth. Annual, with slender, smooth stems. 

 Leaflets 3-5. Flowers very small, yellow, but becoming red with age : 

 peduncles thread-like, each with a 1-3-leaved bract. Pods linear, 

 contracted between the seeds ; these 5-7. This is common from 

 middle California to British Columbia. Spring. 



d. H. gra'cilis Benth. Perennial with slender stems, generally 

 spreading over the ground and growing in wet places. Leaflets 

 5-7 ; stipules thin. Umbels with 8-10 flowers about as long as 

 the leaves, with a 3-leaved bract. Calyx teeth snorter than the 

 tube. Corolla with yellow banner, rose-red wings and keel. - Pods long 

 and straight. This is the most beautiful species, and it is found 

 from Monterey to Washington. 



e. H. bi'color Dougl. Perennial with smooth, erect, rather stout 

 stems. Leaflets 5-7, obovate or oblong; stipules papery, rather large. 

 Peduncles longer than the leaves; umbel. of 3-7 flowers, with or 

 without a bract v - Flowers nearly sessile, yellow, or with white tvings. 

 Calyx teeth half as long as the tube. This grows in wet ground 

 and is found from near San Francisco to Washington. 



/. H. gla'bra Torr. Somewhat .shrubby, tenth many nearly smooth, 

 erect, or decumbent, stems from the root. Leaves few, with 3 small 

 leaflets. Umbels numerous, sessile along the stem, consisting of many 

 yellow flowers that become reddish. Legumes curved and tipped with 

 the long style. This is common all over the state, and in bloom at all 

 seasons. There are many other species more difficult to distinguish. 



VIII. PSORA'LEA 



Ill-scented herbs covered ivith dark, glandular dots. Leaves 

 with 3-5 leaflets and stipules free from the petiole. Flowers 

 white or purplish in axillary spikes or racemes, ivith thin 

 bracts that soon wither and fall. Legumes sessile, 1-seeded, 

 indehiscent. 



a. P. orbicula'ris Lindl. Stems running along the ground in swampy 

 places, bt tiring leaves and spikes of flowers on petioles and peduncles a 

 foot or more long. Leaflets large, round. Flowers large, purple, in 



close, woolly spikes. Stamens diadelphous (9 and 1). Throughout 



California. 



b, P. macrosta'chya DC. Stems usually very tall, 6 ft. or even 

 more. Leaves ovate-lanceolate. Peduncles much longer than the leaves. 

 Spikes silky-woolly, with blackish hairs on the calyx. Bracts 

 broad. Corolla purple. The tenth stamen almost free. Legumes 

 woolly. Throughout California, along streams. 



r. P. physo'des Dougl. f/rww//// a foot or tiro high, with serera) 

 front the base. Flowers in short, close racemes. 



