1923] Ottley: A Revision of the Calif ornian Species of Lotus 231 



References. — Lotus haydoni Greene, Pitt., vol. 2, 1890, p. 149. 

 Hosackia haydoni Orcutt, West Am. Sci., vol. 6, 1889, p. 63, type 

 loc, canon leading into Colorado Desert, on the old stag'e line from 

 San Diego to Fort Yuma. Syrmatium haydoni Heller, Mulil., vol. 9, 

 1913, p. 67. Lotus spencerae Macbride, Contrib. Gray Herb., n.s., 

 vol. 53, 1918, p. 13, type loc., stony slopes, Mountain Springs, 

 Colorado Desert, Spencer. 



25. L. junceus Greene (pi. 78, figs. 7-14). Low brown much- 

 branched suffrutescent perennials, suberect to decumbent ; herbage 

 sparsely covered with short appressed hairs, becoming glabrate with 

 age ; leaflets 3 to 5, rounded-oblanceolate, not over 6 mm. long ; umbels 

 few and peduncled ; calyx teeth short-triangular, not at all subulate, 

 the midvein broad and inconspicuous ; legumes short, fat, and arcuate, 

 1 or 2-seeded. 



Of infrequent occurrence on dry hills from Mt. Tamalpais south- 

 ward near the coast to San Luis Obispo. Distribution Map 8. April- 

 July. This species should not be confused with the form of L. 

 scoparius appearing in San Diego County, which has triangular 

 calyx teeth with a vein running through the center and ending in a 

 subulate point. The aspect of L. jimceus easily distinguishes it in 

 the field from L. scoparius with which it is occasionally found 

 growing. 



Localities. — Mt. Tamalpais, K. Brandegee, May 2, 1905 ; Moraga 

 Ridge, Ottley 111 ; Moraga Pass, Davy 1895 ; Kings Mountain road, 

 San Mateo County, Randall 194; Big Basin, Santa Cruz County, 

 Pendleton in 1908 ; Carmel road near Monterey, Heller 6826 ; San 

 Luis Obispo, Brewer 475, "good match in technical characters for 

 type of Hosavl-ia juncea Benth. Type compact, broom-like, not so 

 tall," Jepson '06, Kew Herb. 



Var. biolettii Ottley n. comb. (pi. 78, figs. 15-22), More decum- 

 bent, the stems more delicate and often wiry ; pubescence more 

 abundant ; peduncle usually exceeding the leaves and bearing a bract 

 of one leaflet. Distinguishable from delicate plants of L. henthamii 

 Greene by its terete arcuate fruit and its short-triangular calyx 

 teeth. — North Coast Ranges from Marin County to Mendocino County. 

 Distribution Map 8. May-July (October). 



There is apparently no qualitative character to separate this 

 variety from L. junceus Greene unless the manner of growth be con- 

 sidered as such. The length of the peduncle and the presence or 

 absence of a bract can hardly be of specific value, as umbels with 

 or without a bract may occur on the same plant, while the length 

 of the peduncle is a variable character also. The pubescence is in 

 kind that of the species, only more abundant, and the amount varies 

 within the variety. 



Localities. — Near Fort Bragg, Davy 6560 ; east of Fort Bragg, 

 Ottley 1513 ; Fort Bragg to Glen Blair, Eastwood 1697 ; Point Arena, 

 Davy and Blasdale 6021; Mt. Tamalpais, T. S. Brandegee, July 7, 

 1890; :\Iill Valley, K. Brandegee in 1913; Mill Valley, Bioletti, July, 

 1891; Mt. Tamalpais, Michener and Bioletti, May, 1893. 



References. — Lotus junceus Greene, Pitt., vol. 2, 1890, p. 148. 

 Hosackia juncea Benth., Trans. Linn. Soc, vol. 17, 1837, p. 366, type 



