290 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



[Vol. 9 



1901, Cusick 2546 (Mo. Bot. Gard. Herb, and Univ. Calif. Herb.). 



California: Darwin, April 28, 1897, Jones (Mo. Bot. Gard. 

 Herb, and Univ. Calif. Herb.) ; Darwin Valley, Inyo County, May 

 19, 1906, Hall & Chandler 7100 (Univ. Calif. Herb.); south of 

 Bishop, Inyo County, May 21, 1906, Heller 8295 (Mo. Bot. Gard. 

 Herb, and Univ. Calif. Herb.); Lone Pine Creek, Inyo County, 

 May 27, 1906, Hall & Chandler 7206 (Univ. Calif. Herb.). 



6. C. Hallii Payson, n. sp. 1 



Annual, sparingly hispid-hirsute on the leaves and pedicels: 

 stem glabrous, somewhat glaucous, simple or paniculately 

 branched above, hollow, with a tendency to become inflated, 

 erect, 5-8 dm. high: cauline leaves 4-1G cm. long, irregularly and 

 deeply laciniate-pinnatifid or dentate with few, coarse lobes: se- 

 pals apparently yellowish, hispid-hirsute, lanceolate, nearly simi- 

 lar and equal, not saccate, about 6 mm. long; petals probably 

 yellow, narrowly spatulate, about 9 mm. long; filaments in three 

 pairs as to Length, distinct, linear, 4, 5, and G mm. long, anthers 

 not apiculate, about 3 mm. long; nectar glands rather well de- 

 veloped: inflorescence lax, racemose; pedicels widely divergent, 

 6-18 mm. long: pods terete, subsessile, divaricate, glabrous, 7-11 

 cm. long, 1.5 mm. wide; style nearly obsolete to 2 mm. long, 

 stigma deeply 2-lobed: cells of septum rectangular, short. 



Distribution: San Jacinto Mountains, southern California. 



Specimens examined: 



California: Coyote Canyon at 5000 ft. alt., on El Toro Moun- 

 tain, May 25, 1899, H. M. Hall 1165 (Mo. Bot. Gard. Herb., 



majo 



type); Coyote Canyon, Santa Kosa Mountain, May 17-June 1, 

 1901, Hall 1902 (Univ. Calif. Herb.). 



This species seems to be as distinct as any unit that has been 

 proposed in this genus and should not be confused with any other 

 species. The tendency to inflation of the stem is suggestive of 



• or C. crassicaulis. The specific description was drawn 

 from a single and somewhat fragmentary specimen, and the 

 measurements may be found not sufficiently inclusive for other 



'Caulanthus Hallii Bp. nov., animus; caule glabro glauco superne ramoso 

 fistuloso, subinflato erecto 5-8 dm. alto; foliis caulinis 4-6 cm. longis hispidulis 

 non amplexicaulibus laeiniato-pinnatifidis, lobia disparibus panels; sepalis sub- 



flavis similibua hispidis, pctalis tiavis spatulatia 9 mm. longis, fllamentis distinctis 



4, 5, et G mm. longis; innorescentiis primo racemosis laxis, pedicellia patent ibus 6— 

 18 mm. longls; siliquis teretibus subsessilibuf} patulis glabris 7-11 em. longis 1.5 



mm. lntis, stylo brcvissimo, stigmate bilobo. — Collected in Coyote Canyon, on El 

 Toro Mountain, California, May 25, 1899, by H. M. Hall 1165 (Mo. Bot. Gard. 

 Herb., typk). 



