OF ARTS AND SCIENCES. 39 



Cardamine angelorum. Animal, glabrous and glaucous, Bub- 

 erect, branching above, leafy to the base of the short raceme : lea\ ( - 

 pinnately divided, the straight divaricate lobes (5 or 6 pairs) linear, 

 obtuse, entire or rarely with a lateral lobe at base, 9 lines long or 

 less: flowe.s purplish, 2 lines long: pods slender, 1| inches long by 

 | of a line wide, ascending ; style short : seeds small. — On stony 

 ridges near Los Angeles Bay. (594.) 



Nastcrtium (?) laxl'm. Annual, glabrous, slender, ascending, 

 the elongated branches very lax : leaves pinnately divided, the nar- 

 rowly linear straight divaricate segments (2 or 3 pairs) entire, acute, 

 8 lines long or less : raceme lax, elongated, the soon distant flowers 

 small (!■£ lines), purplish; on slender spreading pedicels: immature 

 pods reflexed, narrow, 3 to 6 lines long, about equalling the pedicels, 

 the cells about G-seeded ; style stout. — The purplish flowers and 

 immature pods leave the genus somewhat doubtful. It may be a 

 Thelypodium, though differing in habit from other species of that 

 genus. On sandy plains near Los Angeles Bay. (598.) 



Sisymbrium canescens. Nutt. Mountains, Los Angeles Bay. ( 579.) 



Lf.pidium Palmeri. Annual, decumbent or procumbent, branch- 

 ing from the base, hispid throughout: leaves pinnately divided, the 

 narrow lobes with usually a single tooth on the upper margin : 

 racemes sessile, short, rather dense ; pedicels short, broad and flat : 

 flowers minute, apetalous : stamens 2 : pods thinly pubescent, round- 

 ovate with short blunt wings, lh to nearly 2 lines long, on spreading 

 or somewhat recurved pedicels ; stigma sessile. — At Los Angeles 

 Bay, in the shade of rocks and bushes. (560.) 



Lyrocarpa Coulteri, Hook. & Am. The typical form. At 

 Los Angeles Bay, among rocks and under bushes. (540.) 



Cleome tenuis. Annual, erect, slender, branching, 1 to 3 feet 

 high or more, glabrous or the petioles pubescent : leaves 5-foliolate, 

 the leaflets narrowly to linear-oblanceolate, obtuse, £ to 1 inch long. 

 equalling the petioles: racemes loose, few-flowered; flowers yellow, 

 2 lines long, on slender pedicels: pods sessile, narrow, spreading, 1 to 

 H inches long, including the style: seeds transversely rugose. -At 

 Guaymas, on hillsides. (214.) 



Wisltzexia Palmeri, Gray. Three to five feet high ; leaves 

 mostly 3-foliolate. At Guaymas. ("4.) 



Atamisquea emarginata, Miers. A stiff brittle shrub, about 6 

 feet high, with white flowers. Muleje. (28.) 



Oligomers glaucescevs. Camb. At Los Angeles Day, in saline 

 soil. (547.) 



