



CATALOGUE OF SPECIES. 



83 



Trifolium microcephalum Pursh, Fl. ii. 478 (1814). Type locality, "on the 

 banks of Clarek's river." 

 Near Benton (No. 1813). 



Trifolium monanthum Gray, Proc. Amer. Acad. vi. 523 (1865). Typo locality, 

 "moist bank by Soda Springs, Tuolumne River, alt. 8,700 feet." 



Near Mineral King, Sierra Nevada (No. 1473). This little clover is a characteristic 

 species of the high mountain region of eastern California and Nevada. 



Trifolium obtusiflorum Hook. 

 Monterey, California." 

 Near Visalia (No. 1259). 



Ic. PL iii. t. 281 (1810). Type locality, "near 



Trifolium variegatum melananthum (Hook. & Am,) Bot. Beech. 331 (1839-40), as 

 T. melananthum; Greene, PL Fran. 29 (1891). Type locality not given. The plant 

 described was collected in California by Douglas. 



Near Visalia (No. 1257). 



Lotus americamis (Nutt.) Gen. ii. 120 (1818), under TrigoneUa; Bischof, Del. 

 Sein. Heidi. (1839). Type locality, "on the dry and open alluvial soils of the Mis- 

 souri, from the river Platte to the Mountains." 



Panamint Mountains (No. 819) aud Yosemite Valley (No. 1851). This is the old- 

 est available name for Hosackia purshiana. 



Lotus argensis sp. no v. 



Perennial, sutfruteseent, about 50 cm. high, sparingly branched ; stem terete, some- 

 what glaucous, glabrous or provided with a few inconspicuous appressed hairs ; 

 leaves sessile with a flat, linear blade 2 to 5 mm. long; leaflets 3to fi, glabrate above, 

 sparsely villous beneath, cunoate-oblauceolate, the largest 2 cm. Jong, the smaller 

 sometimes not exceeding 5 mm., at the apex broadly obtuse, truncate, or even re- 

 fuse, thick, the lateral veins not apparent, petiolules about 1 mm. long, stipules 

 minute, brown, glanduliform; pcdunclesaxillary, 6 to 12 cm. long, bearing atthe apex 

 a simple bract similar to one of the leaflets, 1- to 3- flowered; flower about 2 cm. long; 

 calyx 8 to 10 mm. long, sparingly appressed-villous, oblique at the orifice, the lance- 

 olate acute teeth of nearly equal length, half as long as the tube; petals deep yel- 

 low or partly orange, the wings aud banner oblong, obtuse ; ovary about 20-ovulate ; 

 capsule 3 to 4.5 cm. long, straight glabrous, 3 to 4 mm. wide; seed not mature. 



Type specimen in the United States National Herbarium, No. 736, Death Valley 

 Expedition; collected April 28, 1891, in Shepherd Canon, Argus Mountains, Inyo 

 County, California, by Frederick Fuuston. 



The species appears to bo most nearly related to Loins mearnsii. 



Lotus crassifolius (Benth.) Trans. Linn. Soc. xvii. 365 (1837), under TTosacJcia; 

 Greene, Pittonia, ii. 147 (1890). Type locality, "California." 

 Valley of the Kaweah River (No. 1323). 



Lotus glaber (Vogel) Lininaa, x. 591 (1836), under Syrmatium; Greene, Pittonia, 

 ii. 148 (1890). Type locality not given, but necessarily in the vicinity of San Fran- 

 cisco, California. 



This is a plant of intramontane California, found by the expedition near San Ber- 

 nardino (No. 30), and at many points on the lower western slopes of the Sierra Ne- 

 vada, from Fort Tejon to Kernville. 



Lotus humilis Greene, Pittonia, ii. 140 (1890). Type locality, "San Bartolome 

 Bay," Lower California. 



In Johnson Canon (No. 561). This locality is unexpectedly remote from the penin- 

 sula of Lower California, to which the species has been supposed to be conlined; 

 yet when it is considered that these two regions have much in common, the fact is 

 not surprising, and the species may be looked for in the intervening country. 



