1923] Ottley: A Revision of ike Calif ornian Species of Lotus 203 



more reflexed, wings obovate, keel beaked and subacute ; legumes 4 to 

 6 cm. long and 1.5 mm. wide; seeds many, oblong (according to 

 Howell, Flora of Northwest America, 1903, p. 140). 



Of only occasional occurrence along streams or in springy places, 

 in Trinity and Shasta counties and in the northern Sierra Nevada 

 from Plumas County to Calaveras County. More abundant north of 

 the state. According to W. J. Hooker, Douglas found this plant 

 growing abundantly in low alluvial overflowed soils between Fort 

 Vancouver and Grand Rapids upon the Columbia, and also near the 

 base of Mt. St. Helen's. Distribution Map 2. April-July. 



Localities. — Washington : Yakima region, T. S. Brandegee 33 ; 

 Tacoma, Fleet, June 7, 1894. Idaho : CottouAvood, Idaho County, 

 Henderson, June 27, 1894; Palouse country and about Lake Couer 

 d'Alene, Ait 071 in 1892; Latah County, Sandherg, 402 (foliaceous 

 bract present in some of the umbels) ; Kootenai County, Leiherg 615, 

 ''corresponds well with type of Lotus pinnatus Hook.," Jepson '06, 

 Kew Herb. California : Indian Valley, Plumas County, Austin in 

 1876; five miles northwest of Greenville, Stephens, April 29, 1894; 

 Quincy, Plumas County, Jepson 4141; Donner Lake, Sonne, July, 

 1888, in part (U.C. Herb.) ; Emigrant Gap, Placer County, Jones 

 3282; Placer County, Hardy in 1893, in part (U.C. Herb.), resembles 

 L. formosissimus Greene in general aspect but does not have a 

 bracteate inflorescence ; El Dorado County, Gross in 1903 (umbels 

 ebracteate or with a bract of 3 leaflets) ; Poole's Meadow, CalaA'eras 

 County, Davy 1435 ; De Sabla, Butte County, Edwards in 1917 ; near 

 Redding, Heller 7905 ; Squaw Creek Ranger Station, Shasta County, 

 Drew in 1916; Montgomery Creek, Shasta County, Eastwood 645; 

 northeast of Weaverville, Trinity County, Yates 344 (bract of 1 small 

 leaflet in some of the umbels) ; foot of Mt. Sanhedrin, Lake County, 

 Reynolds, June, 1917. 



References. — Lotus pinnatus Hook., Bot Mag., vol. 56, 1829, t. 

 2913, type from northwestern North America, Douglas. Hosackia 

 hicolor'Dougl., Bentham in Lindl. Bot. Reg., vol, 15, 1829, t. 1257, 

 type from northwestern North America, Douglas. Lotus hicolor Frye 

 & Rigg, Fl. Northwest, 1912, p. 234; Frye & Rigg, Elem. Fl. North- 

 west, 1914, p. 140. 



5. L. formosissimus Greene (pi. 66, figs. 7-13). In general aspect 

 resembling a small decumbent form of L. pinnatus Hook., but differ- 

 ing from it in having a bract of 1 to 3 (to 7) leaflets; leaflets of lower 

 leaves obovate, obtuse ; stipules ovate, sometimes attaining 1.5 cm. in 

 length ; no marked contrast between hypanthium and calyx tube ; 

 calyx but slightly bilabiate, the two dorsal teeth more than one-half 

 the length of the other three ; wings of corolla spreading, faint lilac 

 or rose becoming darker upon drying; tip of keel purple; seeds small, 

 varying from oblong to asymmetrically oval. 



Moist situations in the coastal counties, extending nortli from 

 Monterey and San Benito counties into Oregon and Washington. 

 Sonoran. Distribution Map 2. March-JunCi 



Ijocalities. — San Benito County, Eastwood in 1915 ; Carmel, Ott^e]/ 

 1310; Pacific Grove, Elmer 3548; Pacific Grove, Heller 6669; Pesca- 

 dero Ranch, Monterey County, Brewer 655; Pescadero, Hutchings, 



