PAPILIONACEAE. 



[VOL. II. 



4. Lupinus pusillus Pursh. Low Lupine. 

 (Fig. 2060.) 



Lupinus pusillus Pursh, Fl. Am. Sept. 468. 1814. 



Annual (always?), villous-pubescent, 4 / -8 / high, 

 from a deep root, much branched near the base. 

 Leaves petioled, i / -2 / wide; leaflets 5-7 (commonly 

 5), oblong or oblanceolate, narrowed at the base, 

 obtuse or acute at the apex, glabrous or nearly 

 so on the upper surface, pubescent with long scat- 

 tered hairs beneath, 3 // ~4 // wide; racemes numer- 

 ous, short-peduncled or sessile, I'-s' long, densely 

 few-flowered; pedicels i // -a // long; flowers blue, 

 3 / '-4 // long; pod oblong, very pubescent, 6 // -8" 

 long, 2 // -3 // broad, about 2-seeded; style subulate. 



Dry plains, Kansas, Dakota, west to the Sierra Ne- 

 vada, south to Arizona and New Mexico. March-July. 



7. ULEX L. Sp. PI. 741. 1753- 



Shrubs, with stiff spine-like branches, simple, linear stiff very prickly leaves, and large 

 yellow solitary or racemcd flowers. Calyx membranous, mostly yellow, divided nearly to its 

 base into 2 concave lips; upper lip mostly 2-toothcd, and lower 3-toothed; teeth short. Stand- 

 ard ovate; wings and keel oblong, obtuse. Stamens monad el phous; anthers alternately 

 longer and shorter, the shorter versatile. Ovary sessile, several-many-ovuled; style some- 

 what incurved, smooth. Pod ovoid, oblong or linear. Seeds strophiolate. [The ancient 

 Latin name.] 



About 20 species, natives of eastern Europe. 



i. Ulex Europaeus L. Furze. Gorse. 



Whin. Prickly or Thorn Broom. 



(Fig. 2061.) 



Ulex Europaeus L. Sp. PI. 741. 1753. 



Much branched, bushy, 2-6 high, more or 

 less pubescent. Branchlets very leafy, tipped 

 with spines; leaves prickly, a // -7 // long, or the 

 lowest sometimes lanceolate and foliaccous; 

 flowers borne on twigs of the preceding season, 

 solitary in the axils, 6 // -8 // long, the twigs ap- 

 pearing like racemes; pedicels very short, 

 bracted at the base; calyx a little shorter than 

 the petals, minutely 2-bracteolate; pod few- 

 seeded, compressed, scarcely longer than the 

 calyx. 



In waste places, southern New York and eastern 

 Virginia, escaped from cultivation. Also on Van- 

 couver Island. Fugitive from Europe. May-July. 



8. GENISTA L. Sp. PI. 709. 1753. 



Low branching sometimes thorny shrubs, mainly with i-foliolate leaves, and showy clus- 

 tered yellow flowers. Calyx 2-lipped; teeth long. Standard oval or ovate; wings oblong; keel 

 oblong, deflexed, the claws of its petals adnate to the uncleft sheath of the monadelphous 

 stamens; anthers alternately long and short. Ovary sessile, several-ovuled; style incurved 

 at the apex. Pod various, flat in our species, several-seeded. Seeds not strophiolate. 

 [Celtic, gen, a small bush.] 



About 80 species, natives of Europe, northern Africa and western Asia. 



