[Vol. 9 

 300 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



at the base, anthers 2-3 mm. long, apiculate: inflorescence lax, 

 racemose; pedicels pilose, curved, ascending or somewhat de- 

 flexed, 5-10 mm. long: pods ascending or deflexed, straight, 2-4 

 cm. long, 2-3 mm. wide, slightly compressed or quadrangular, 

 subsessile ; style 2-7 mm. long, stigma deeply 2-lobed : cotyledons 

 in seed obliquely incumbent, 3-parted. 



Distribution: south central California. Type: Mrs. Bush 

 from "near Tulare." 



Specimen examined: 



California: Delano, May, 1888, Eisen (Mo, Boi Gard. Herb.). 



Stanfordia as a genus is practically dependent upon one char- 

 acter: the deeply trifid cotyledons, which are remarkable and 

 without parallel in the genus Caulanthus. No tendency in this 

 direction has ever been noticed in any of the other species. In 

 other respects, however, C. californicus is a true Caulanthus. 

 Only in very minor ways does it differ from its nearest relative, 

 C. Coulteri. The pods are much shorter but their variable posi- 

 tion from erect to deflexed is very suggestive of this group. The 

 stamens are sometimes united at the base as in C. Coulteri. The 

 sepals are more definitely inflated and the petals differently 

 shaped, but these differences are no greater than between other 

 species of Caulanthus. The habit and general appearance of the 

 plant are so similar to its relatives in the present genus that an 

 examination of the cotyledons would be necessary definitely to 

 locate it for any one not perfectly familiar with the species. The 

 author does not believe that one character is enough upon which 

 to base a genus, particularly a monotypic genus, unless there is 

 some reason to question its point of origin. This plant undoubt- 

 edly arose from C. Coulteri or a close relative of it, and so for the 

 sake of simplicity the genus Stanfordia is merged in Caulanthus. 



15. C. stenocarpusPayson, n. sp. 1 



Annual, more or less densely hirsute-pubescent with flattened 

 trichomes: stem erect, slender, simple or sparingly branched, 



'Caulanthus stenocarpus sp. nov., animus plus minusve hirsuto-pubescens; 

 caule erecto gracile ramuloso 3-4 dm. alto; foliis eaulinia linearo-lanceolatis sub- 

 integris sessilis amplexicaulibus 1-2 cm. longis; floribus pendentibus, Bepalis non 

 saccatis similibus circiter 4 mm. longis, petalis purpurellis late linearibua 6 mm. 

 longis, filamentis distinctis 3-4 mm. longis; inflorescentiis serius laxis racemosis, 

 pedicellis reeurvis hirsutis 1-2 mm. longis; siliquis trretibus rectis patento-reflexis 

 glabris ant hispidulis, stylo 1-2 mm. longo, stigmate parvo subintegro; seminibus 

 immarginatis, cotylcdonibus oblique incumbentibus. — Collected on dry hillsides 

 near Bernardo, California, May 1, 1903, LeRoy Abrams SS64 (Mo. Bot. Gard. 

 Herb., type). 



