VALERIANE.E. 167 



subulate, either naked or sparsely spinulose-ciliate, 24 lines long: 

 fl. dio3cious, the sterile in few-flowered terminal cymes; fertile solitary, 

 subtended by a whorl of leaves which are longer than the deflexed 

 fruiting pedicel: berry smooth, blackish. Dry summits of Mt. Diablo, 

 Mt. Hamilton, etc. 



OBDEB LVI. VALERIANE>, 



Herbs with opposite leaves, no stipules, and mostly complete flowers, 

 in a cymose or thyrsoid inflorescence. Calyx-tube adherent to the 

 ovary; limb either obsolete, or composed of teeth which develop as a 

 pappus or feathery crown upon the fruit. Corolla more or less irregular; 

 the limb bilabiate, the lobes imbricate in bud. Stamens 1 3, epipetalous. 

 Filaments and style filiform; stigma undivided and truncate, or minutely 

 3-cleft. Fruit an achene; seed pendulous. 



1. YALERIANELLA, Vaiilanl. Rather small spring annuals, with 

 small pinkish flowers in cymes which form a more or less interrupted 

 thyrsiform terminal inflorescence. Corolla more or less bilabiate, 

 spurred or gibbous at base. Calyx-limb none, therefore no pappus to 

 the variously winged often meniscoid glabrous or pubescent fruit. 



1. V. macrocera (T. & G.), Gray. Corolla only a line long, with 

 spur sometimes as long as the body, sometimes shorter; limb somewhat 

 equally spreading, hardly bilabiate, or equally 4-lobed and the posterior 

 lobe emarginate-bifid : fr. glabrous or puberulent, obtuse or lightly lineate- 

 sulcate on the dorsal angle, the broad wing, circumscribing the ventral 

 face of the achene, spreading or incurved. On hillsides. April June. 



2. V. congesta, Lindl. Corolla 34 lines long, with obviously 

 bilabiate 5-cleft limb, the lobes oblong, obtuse; tube very gibbous, 

 spurred at base, the spur short, arcuate, obtuse : fr. pubescent, the keel 

 prominent, obtuse, circumscribing ventral-face wing broad, involute. 

 Common on dry hills, or in shady places. April, May. 



3. Y. samolifolia (DC.), Gray. Corolla a line long, obscurely bilabiate, 

 with short obconic-saccate spur: fr. triquetrous, wholly destitute of wing, 

 glabrous or a little pubescent. Near the coast, from Sonoma Co- 

 northward. 



OBDEB LVII. D I P S A C E / . 



Herbs with opposite leaves, and flowers in dense involucrate peduncled 

 heads; each flower in the head enclosed within a tubular involucel and 

 subtended by a bract. Calyx-tube adherent to the ovary; limb entire, 

 or toothed, or with bristle-like segments that persist upon the fruit. 

 Corolla inserted at summit of calyx-tube, 4- or 5-lobed. Stamens 4, 

 epipetalous, alternate with the corolla lobes. Style filiform; stigma 

 simple, longitudinal or subcapitate. Fruit achene-like, crowned with 

 the calyx-limb, 1 seeded. Seed pendulous; albumen fleshy. 



