552 FABACEAE 



36. Hosackia dendroidea (Greene) Abrams. Island Broom. Fig. 2745. 



Syrmatium dcndroideum Greene, Bull. Calif. Acad. 2: 146. 1886. 



Lotus dendroideus Greene, Pittonia 2: 148. 1890. 



Syrmatium Traskiae Eastw. ex Abrams, Fl. Los Ang. 201. 1917. 



Suffrutescent or shrubby, 3-10 dm. high, the branches sparsely strigose, soon glabrous, the 

 older ones roughened by the prominent stipular glands. Leaves 3-foliolate, the rachis slender, 

 5-10 mm long; leaflets 5-15 mm. long, linear-oblong, obtuse at apex, thinly strigose; umbels 

 3-9-flowered, bractless ; peduncles 2-5 mm. long; calyx strigose, the teeth triangular-subulate, 

 scarcely 1 mm. long; corolla 8 mm. long, yellow or tinged with red; pod nearly straight, gla- 

 brous, the body 10 mm. long, 2-seeded, the beak scarcely as long as the body, only the slender 



tip recurved. 



Dry rocky ridges and canyon slopes, Upper Sonoran Zone; Santa Rosa, Santa Cruz, Anacapa, and Santa 

 Catalina Islands, California. Type locality: Santa Cruz Island. March-June. 



37. Hosackia Haydonii Orcutt. Haydon's Hosackia. Fig. 2746. 



Hosackia Haydonii Orcutt, W. Amer. Sci. 6: 63. 1889. 

 Lotus Haydonii Greene, Pittonia 2 : 149. 1890. 



Erect much branched perennial, 3-4 dm. high, the branches very slender, rather rigid, green, 

 sparsely strigose, especially on the nascent parts. Leaflets 3, elliptic, 2-3 mm. long ; flowers soli- 

 tary or rarely in pairs, 4-5 mm. long, borne on a short bractless peduncle; calyx strigose, 2.5 

 mm. long, teeth shorter than the tube; pod curved, 5 mm. long, sparsely strigose, 1 -seeded. 



Rocky desert slopes, Sonoran Zones; stony slopes of the Cuyamaca Mountains, California, and adjacent 

 Lower California. Type locality: Colorado Desert canyons. March-May. 



38. Hosackia glabra (Vogel) Torr. California Broom or Deer Weed. Fig. 2747. 



Syrmatium glabrum Vogel, Linnaea 10: 591. 1836. 



Hosackia scoparia Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 325. 1838. 



Hosackia crassifolia Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 325. 1838. 



Hosackia glabra Torr. Bot. Wilkes Exp. 274. 1873. 



Lotus glaber Greene, Pittonia 2: 148. 1890. 



Suffrutescent, the branches numerous, suberect or sometimes more spreading, 3-10 dm. high, 

 soon glabrous, and broom-like. Leaflets 3, on a short rachis, linear or linear-oblong, obtuse or 

 accumbent, glabrous or very sparsely strigose, umbels sessile in the axils, 1-4-flowered ; calyx 

 sparsely strigose or glabrous, the teeth subulate, about half the length of the tube; corolla yel- 

 low, sometimes tinged with red, 7-9 mm. long, the wings equaling or slightly exceeding the 

 keel ; body of the pod slender, much longer than the calyx, curved, glabrous, tapering to the 

 subulate beak, 2-seeded. 



Hillsides, Upper Sonoran Zone; Mendocino and Plumas Counties, California, south to northern Lower Cali- 

 fornia. Type' locality: California. March-Sept. 



Hosackia glabra subsp. brevialata (Ottley) Abrams. {Lotus scoparius var. brevialatus Ottley, Univ. Calif. 

 Pub Bot 10-229 */ 77. 1923.) Resembles slender forms of the typical species in general habit; wings ot the 

 corolla much shorter than the keel. Desert slopes and interior foothills of cismontane southern California, from 

 southern San Bernardino County to northern Lower California. 



39. Hosackia sericea Benth. Silky California Broom. Fig. 2748. 



Hosackia sericea Benth. Trans. Linn. Soc. 17: 367. 1837. 

 Hosackia procumbens Greene, Bull. Calif. Acad. 1: 83. 1884. 

 Syrmatium sericeum Greene, Bull. Calif. Acad. 2: 147. 1886. 

 Syrmatium procumbens Greene, Bull. Calif. Acad. 2: 148. 1886. 

 Lotus procumbens Greene, Pittonia 2: 148. 1890. 

 Lotus leucophyllus Greene, Pittonia 2: 149. 1890. 



Perennial, the stems several to many from the crown of a woody taproot, ascending or de- 

 cumbent 3-8 dm. long, strigose-canescent, sparsely so in age and pallid green. Leaflets 3 on a 

 very short rachis, oblanceolate to linear-oblanceolate, 5-12 mm. long, acute at apex, silky-canes- 

 cent ; umbels sessile or subsessile, scattered along the branches, 1-3-flowered or rarely 6-flowered; 

 calyx-tube silkv, 3 mm. long, the teeth scarcely 1 mm. long, triangular-subulate ; corolla yellow, 

 6-7 mm. long, the claws exserted beyond the calyx, the wings longer than the keel ; pods reflexed, 

 much exceeding the calyx, straight or falcate, 2- to several-seeded. 



Sandy flats and dry hillsides, Upper Sonoran Zone; Inner Coast Ranges, San Benito and Monterey Counties 

 to the desert slopes of the San Bernardino Mountains, California. Type locality: California. April-July. 



Hosackia sericea subsp. Jepsonii (Ottley) Abrams. ( Lotus leucophyllus var. Jepsonii Ottley Univ. Calif. 

 Pub Bot 10: 227. 1923.) General habit of the typical form of the species; umbels 1-2-flowered; calyx-teeth 

 2.5 mm. long, over half as long as the tube; corolla 9-10 mm. long. Arid Transition Zone; southern Siert-a 

 Nevada, in Tulare and Kern Counties, California. 



10. LOTUS [Tourn.] L. Sp. PI. 773. 1753. 



Perennial or annual herbs with 3-5-foliolate leaves, and foliaceous stipules. Flowers 

 umbellate, yellow or white, often tinged with red. Calyx-teeth subequal. Standard ovate 

 or orbicular ; wings oblong to obovate ; keel incurved, obtuse or beaked. Stamens diadel- 

 phous. Ovary sessile. 1- to several -ovuled. Pod linear or oblong, compressed or terete, 

 2-valved, 1- to several-seeded. [The Greek name of several different plants.] 



A genus of about 90 species, natives of the Old World. Type species, Lotus corniculatus L. 



