128 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 13 



ferentiated into petiole and blade, 1-4 cm long, 1-3 mm wide, lobes 1-3 

 mm long, ca. 1 mm wide; flowers unknown; siliques clustered at the 

 apex of a nearly leafless peduncle, the infrutescence approaching a sub- 

 umbellate condition, siliques broadly obcordate with a very shallow sinus 

 above, densely pubescent throughout, strongly flattened contrary to the 

 replum, 4-10 mm long, 5-12 mm wide; stigma sessile and not lobed. 



Known only from the type no. 6913 in the herbarium at the Allan 

 Hancock Foundation, University of Southern California, collected at 

 Puerto Refugio, Angel de la Guardia Island, Gulf of California, March 

 20, 1937, Rempd 280. 



Lyrocarpa linearifolia is unmistakably related to L. Coulteri, var. 

 Palmeri. It differs strikingly from var. Pahneri in having narrowly 

 linear, relatively undifferentiated leaves, smaller siliques and sessile un- 

 divided stigmas. In some plants of var. Pahneri, the leaves show a strong 

 trend toward reduction of the blade, but in no case do they approach 

 the narrowness and small lobes of L. linearifolia. The leaves of the latter 

 species are subfasciculate but never so in var. Palmeri. The stigmas of 

 var. Palmeri terminate in a definite short style and are conspicuously 

 lobed, whereas those of L. linearifolia are sessile and undivided. Another 

 difference is notable in the infructescence which is subumbellate in L. 

 linearifolia and racemose in var. Palmeri. The material of L. lineari- 

 folia is insufficient to permit speculation as to the natural variation 

 found in the species. The type specimen lacks roots, and the stems ap- 

 pear to have been broken off somewhat above the root-crowns. For this 

 reason it is not possible to form any notion as to the height of the plants 

 from which the specimens were taken. 



Lyrocarpa Xantii Brge., Proc. Calif. Acad. Sci. II, 2:127. 1890. 



San Jose del Cabo, February 17, Dawson 1199. 



Stony canyon slopes and coarse alluvium along the mountains from 

 the Vizcaino Desert to the Cape District. 



Resedaceae 



Oligomeris linifolia (Vahl) McBr., Cont. Gray Herb. II, 53:13. 

 1918. 



North end of Los Angeles Bay, March 19, 20, Rempel 258. 



Widely scattered in the deserts of the southwest from Texas and 

 California south throughout Baja California; also in Asia and Africa. 



MORINGACEAE 



MoRiNGA OLEiFERA (L.) Lam., Encycl. 1:39. 1783. 

 Guilandina Moringa L., Sp. PL 381. 1753. 



