DIPSACEjE. 



475 



1. P. samolifolia (DC.) Hoeck. Corolla obscurely bilabiate; 

 spur short; fruit wingless, resembling a buckwheat fruit. 



Near the coast northward. Not seen by us. 



2. P. Jepsonii (Suksdorf) Davy. Simple, about 10 in. high; 

 leaves spatulate-obovate and narrowed to a winged petiole; upper 

 leaves ovate-lanceolate, sessile, acute; fruit conspicuously covered 

 with woolly hairs; incurved margin of wing thickish, marked length- 

 wise on the outside by a groove. — (Valerianella samolifolia Gray.) 



Vaca Mountains, May 17, 1892. 



3. P. glabra. About 1 ft. high, the leaf axils bearing some 

 slender branches; leaves ovate, acute or the lower broadly oblong, all 

 more or less erose or with some few serrulations; spur of corolla 

 broad, almost as broad as the throat; fruit wholly glabrous; margins 

 of the fruit thickish, spreading or equally incurved. 



Antioeh. Davy, no. 951, Apr. 7, 1895.' 



4. P. magna (Greene) Suksdorf. Stems stoutish, often 2 to 2$ 

 ft. high, the remote nodes with 1 or 2 very slender branches; leaves 

 oblong-obovate, obtuse, 1 to 2\ in. long, the uppermost smaller, 

 ovate and often acute; "corolla white, its spur short and thick:'" 

 fruit smooth and somewhat flattened laterally or narrow dorsally. 

 glabrous outside or the margins of the wings ciliate, the cavity with 

 a hispid line; wings with thin margins, not lobed at apex, incurved, 

 meeting above and leaving a small circular opening below, or closed 

 below and open above. — (Valerianella magna Greene.) 



North Coast Ranges: Vaca Mountains; Napa Mountains; origi- 

 nally collected in Knight s Valley by Greene. 



5. P. macrocera Torr. & Gray. Slender, mostly -imple, 3 or 4 

 to 8 in. high; leaves linear or narrowly oblong; spur of corolla longer 

 than tube; fruit more or less hispid, dorsally carinate, the carina 

 2-grooved; lateral wings broad, each with a more or less obvious lobe 

 at apex, spreading or incurved. 



Coast Ranges: Napa Mountains and elsewhere. 



Var. ciliosa (V. ciliosa Greene). Carina of fruit ribbon-like, bor- 

 dered on each side with a rather dense row of short equal bristles 

 perpendicular to it. — Marin Co. 



6. P. Davy ana. Simple, about 1 ft. high; leaves mostly narrowly 

 oblong; flowers in a dense and mostly uninterrupted spike; spur ot 

 corolla much shorter than throat; fruit with broadish back, more or 

 less hispid, the carina bordered with many hispid hairs; wings not 

 lobed at apex, incurved, and merging gradually into the beak: cavity 

 of fruit with a small depression on each side from which arises a 

 single stout subulate body. 



Antioeh, Davy, no. 953, Apr. 7, 1895. 



98. DIPSACE>E. Teasel Family. 



Herbs with opposite leaves. Flow T ers in dense heads or short spikes 

 surrounded bv an involucre. Calvx-tube adnate to the ovarv, its 



