NEW OR NOTEWORTHY SPECIES. 225 



season. This is tlie first genuine Alyssmn, of Old World 

 type, known to liave been found in North America. 



Streptanthus Biolettii. Annual, rather slender, spar- 

 ingly branching, 1 to 1| feet high, the branches not flexuous, 

 the herbage x)ilose-hispidulous, the pods often fairly, hispid: 

 lower leaves coarsely and sinuately toothed: racemes not 

 secund: flowers 4 or 5 lines long; sepals of a brilliant but 

 rather -dark metallic purple; petals with white-margined 

 purple blade: upper pair of filaments much the longest, 

 united for about two-thirds their length, thence divergent, 

 their anthers half as large as those of the shorter stamens, 

 apparently fertile: pods slender, erect, glabrous or hispid. 



On Hood^s Peak, Sonoma Co., California, May 1, 1889, Mr. 

 F. T. Bioletti. 



Streptanthus pulchellus. Annual, stoutish, only 3 to 6 



inches high, hispidulous throughout: lowest leaves unknown; 

 the lower cauline oblong-lanceolate, tapering below, but. ses- 

 sile by a rather broad base, upper ovate-oblong, broadest at 

 the sagittate-clasping base, all rather coarsely and pinnately 

 toothed: raceme subsecuud: flowers 4 or 5 lines long; calyx 

 deep lilac-purple, the sepals subequal, broadest at base, 

 sharply carinate, the keel with some scattered short bristly 

 hairs: limb of upper pair of petals conspicuous, dark-purple, 

 of the lower pair very small: upper pair of stamens united to 

 near the summit, their subsagittate anthers approximate, little 

 reduced in size, the other 4 stamens in very unequal pairs, 

 with large subsagittate anthers: stigma sessile: pod unknown. 

 Dry ridges on the southern flanks of Mt. Tamalpais, Mann 

 Co., California, May, 1892, Mr. Marshall A. Howe. Tlie plant 

 was observed by the present writer, near Tomales, several 

 years since, and taken for S. hispidus; but it is of a very dis- 

 tinct species. 



Ranunculus Biolettii. Annual, glabrous and notably suc- 

 culent, 1 to 3 inches high; radical leaves on elongated peti- 



