Genus 6 



PEA FAMILY. 



349 



4. Lupinus pusillus Pursh. 

 Fig. 2464. 



Low Lupine. 



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 ape.x, glabrous or nearly so 

 on the upper surface, pubescent with long scattered 

 hairs beneath, 3"-4" wide ; racemes numerous, short- 

 peduncled or sessile, i '-3' long, densely few-flowered ; 

 pedicels l"-2" long; flowers blue. 3"-4" long; pod 

 oblong, very pubescent, 6"-8" long, 2"-3" broad, 

 about 2-seeded ; style subulate. 



Dry plains. South Dakota to Nebraska. Kansas, Mon- 

 tana, Oregon, Washington, Nevada 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 racemed flowers. Calyx membranous, mostly yellow, divided nearly to its 

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

 Standard ovate ; wings and keel oblong, obtuse. Stamens monadelphous ; 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, the following typical. 



I, Ulex europaeus L. Furze. Gorse. Whin. 



Prickly or Thorn Broom. Fig. 2465. 



Ule.r europaeus L. Sp. PI. 741. 1753. 



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

 pubescent. Branchlets very leafy, tipped with 

 spines ; leaves prickly,- 2"-~" long, or the lowest 

 sometimes lanceolate and f oliaceous ; flowers borne 

 on twigs of the preceding season, solitary in the 

 axils, 6"-8" long, the twigs appearing like racemes ; 

 pedicels very short, bracted at the base ; caly.x a 

 little shorter than the petals, minutely 2-bracteo- 

 late ; pod few-seeded, compressed, scarcely longer 

 than the calyx. 



In waste places, eastern Massachusetts to south- 

 ern New York and eastern Virginia, escaped from 

 cultivation. Also on Vancouver Island. Fugitive 

 from Europe. Ulim. May July. 



8. GENISTA [Tourn.] L. Sp. PL 709. 1753. 



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

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

 keel oblong, defle.xed, 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, the following typical. 



