EPILOBIACEffi. 131 



deeply cleft. Stamens 8, the 4 alternate ones shorter; anthers linear- 

 oblong, attached by the middle. Stigma peltate or capitate, 4-lobed. 

 Capsule slender-fusiform, 4-angled, 4-valved, oo -seeded. Seeds comose. 



1. Z. Californica, Presl. Decumbent, 1 — 3 ft. high, canescenl with u, 

 minute but dense tomentose pubescence: leaves linear-lanceolale, %. — 1% 

 in. long, entire or denticulate, thickish, seldom at all feather-veined: 

 fl. 1% in. long; calyx-tube narrow-funnelform, twice the length of the 

 linear-lanceolate segments, these surpassed by the deeply cleft petals : 

 capsule nearly glabrous, distinctly pedicelled: seeds oblong-obovate. — 

 In the Coast and Mt. Diablo Banges, from Lake Co. southward, on dry 

 open ground. July — Nov. 



2. Z. latifolia, Greene. Decumbent, seldom 1 ft. high, commonly 

 nearly glabrous: leaves from broadly ovate to ovate-lanceolate, % — 1 i n> 

 long, very acute, more or less serrate-toothed, thin, conspicuously feather- 

 veined: fl. 1 in. long; calyx-tube narrowly cylindrical for about 2 lines 

 above the globose base, thence widening abruptly to a funnelform 

 throat, the whole not longer than the petals: capsule subsessile, glabrous. 

 — Eastern base of the Mt. Diablo Bange. June — Nov. 



3. (ENOTHERA, Linn. (Evening Pbimrose). Herbs exceedingly 

 diverse in habit. Leaves alternate. Flowers yellow, white or purplish, 

 axillary, spicate or racemose. Calyx-tube prolonged above the ovary, 

 mostly deciduous. Petals 4, mostly vespertine as to time of opening, and 

 evanescent, usually obcordate, or flabelliform. Stamens 8, equal, or 

 those opposite to the petals shorter; anthers various. Ovary 4-celled, 

 oo-ovuled; style filiform; stigma 4-lobed or capitate. Capsule from 

 membranaceous to woody, more or less perfectly 4-valved and dehiscent, 

 or indehiscent. Seeds in 1 or 2 rows in each cell, horizontal or ascending, 

 naked, often angled. 



* Tall annuals or biennials; calyx-tube elongated, deciduous from the orary; 

 fl. in a leafy spike, vespertine; stigma-lobes linear. 



1. 05. biennis, L. Erect, 3—5 feet high, the older parts, and 

 especially the capsules, hirsute : leaves rather thin, lanceolate, denticulate : 

 calyx-tube 1*4 i n - long; segments % in., their tips very short, not 

 contiguous: petals 1 in. long, light yellow: filaments subulate, short, 

 the long anthers exserted: style short; stigma-lobes green, not widely 

 spreading: capsule 1}£ in. long, tapering from below the middle to apex, 

 scarcely angular, the valves separating at apex only. — Along the Sacra- 

 mento Biver in Solano Co., CE. Jepsonii, of PI. Fr., but probably not 

 specifically distinct. 



2. CE. GRANDiFiiOBA, Ait. Erect,3 — 5 ft. high; stem and inflorescence 

 scabrous and sparsely hirsute; the ovate-lanceolate denticulate leaves 

 minutely and sparsely pubescent: calyx- tube 1—2 in. long, the segments 



