PEA FAMILY 519 



Lupinus magnificus var. hesperius (Heller) C. P. Smith in Jepson, Man. Fl. PI. Calif. 533. 1925. (Lu- 

 pinus hesperius Heller, Muhlenbergia 2: 212. 1906.) About 2 dm. tall; flowers 13-15 mm. long, pedicels stout, 

 3-4 mm. long; racemes about 10 cm. long; upper calyx-lip bifid, lower tridentate, keel straight. In coarse sand, 

 known only from the type locality, near Bishop, Inyo County, California. 



4. ULEX L. Sp. PI. 741. 1753. 



Shrubs with stiff spinescent branches, and simple stiff and prickly leaves. Flowers 

 solitary or racemose, yellow. Calyx membranous, usually yellowish, deeply divided into 

 two lips, the upper lip 2-toothed, the lower 3-toothed, the teeth short. Standard ovate, 

 the wings and keel oblong, obtuse. Stamens monadelphous. Ovary several to many- 

 ovuled. Pod ovoid to linear, seeds strophiolate. [The ancient Latin name.] 



About 20 species, natives of eastern Europe. Type species, Ule.r europaeus L. 



1. Ulex europaeus L. Furze, Gorse, Prickly Broom. Fig. 2644. 



Ulex europaeus L. Sp. PI. 741. 1753. 



Bushy shrub, 1-2 m. high, more or less pubescent throughout, the branches very leafy, spine- 

 tipped. Leaves acicular, 5-15 mm. long; flowers solitary in the axils on short lateral twigs; 

 pedicels 5 mm. long ; calyx 10-15 mm. long, nearly equaling the corolla. 



Native of Europe; escaped from cultivation and often well established on the Pacific Coast from Vancouver 

 Island to central California. April-July. 



5. CYTISUS [Tourn.] L. Sp. PI. 739. 1753. 



Shrubs, with green, leafy or sometimes nearly leafless, more or less angular branches. 

 Leaves palmately or pinnately 3-fo!iolate, the leaflets entire. Flowers terminal, solitary or 

 racemose, usually yellow. Calyx 2-lipped, campanulate, the teeth short. Standard ovate 

 or orbicular; wings oblong or ovate; keel straight or curved. Stamens monadelphous; 

 pods compressed, several-seeded; seeds strophiolate. [Name from Cythrus, one of the 

 Cyclades, where the first species was found.] 



A genus of about 45 species, natives of Europe, western Asia, and northern Africa. Type species, Cytisus 

 hirsutus L. 



Branches often nearly leafless and broom-like; calyx-lips rounded and entire. 



Flowers white, 10 mm. long; style 5 mm. long, slightly curved. 1. C. multiflorus. 



Flowers bright yellow, 18-20 mm. long; style 10-15 mm. long. 2. C. scoparius. 



Branches leafy; calyx silky-pubescent, the lower lip entire, acute, the upper with 2 acute lobes; flowers yellow. 



3. C. monspessulanus. 



1. Cytisus multiflorus (Ait.) Sweet. White-flowered Broom. Fig. 2645. 



Spartium multiflorum Ait. Hort. Kew. 3: 21. 1789. 

 Cytisus albus Link, Enum. Hort. Ber. 2: 241. 1822. 

 Cytisus multiflorus Sweet, Hort. Brit. 112. 1827. 



Shrub, 1-2 m. high, with slender angled branches, often nearly leafless. Leaflets 1-3, nar- 

 rowly oblong to oblong-obovate, pubescent on both surfaces ; flowers solitary or in pairs in the 

 axils; pedicels 8-12 mm. long; calyx-lips short, rounded, merely notched at apex; petals white, 

 about 1 cm. long ; style curved, 5 mm. long ; pod appressed-pubescent. 



Native of Spain and northern Africa; naturalized in western Oregon and Washington. May-June. 



2. Cytisus scoparius (L.) Link. Scotch Broom. Fig. 2646. 



Spartium scoparium L. Sp. PI. 709. 1753. 



Cytisus scoparius Link, Enum. Hort. Ber. 2: 241. 1822. 



Shrub 1-2 m. high, with angular naked or sparingly leafy broom-like branches. Leaves 1-3- 

 foliolate; petioles 2-10 mm. long; leaflets 4-8 mm. long, obovate, acute or mucronate-tipped ; 

 flowers bright yellow, solitary or 2 or 3 together in the axils of the leaves, about 2 cm. long ; 

 pedicels 6-10 mm. long ; pod ciliate on the margins, otherwise glabrous. 



Native of Europe, escaped from cultivation and frequently found along roadsides in western Washington to 

 central California. April-June. 



3. Cytisus monspessulanus L. French Broom. Fig. 2647. 



Cytisus monspessulanus L. Sp. PI. 740. 1753. 

 Cytisus candicans Lam. Fl. Fr. 2: 623. 1778. 

 Genista candicans L. Amoen. Acad. 4: 284. 1751. 



Shrub 1-3 m. high, the branches angled, leafy, villous when young. Leaves short-petioled, 

 3-foliolate; leaflets obovate or obovate-oblong, mucronulate, 1-2 cm. long, pubescent beneath, 

 glabrous or nearly so above ; racemes subcapitate, 3-9-flowered, terminating short lateral branch- 

 lets ; flowers bright yellow, fragrant ; pods rufous-villous. 



Native of the Canary Islands, escaped from gardens in western Washington, Oregon, and northern Cali- 

 fornia. March-June. 



6. MEDICAGO [Tourn.] L. Sp. PI. 778. 1753. 



Annual or perennial herbs, in one southern European species shrubby, with small 

 pinnately 3-foliolate leaves, the leaflets usually toothed, the stipules adnate. Flowers 



