EVENING-PRIMROSE FAMILY. 



333 



obconic or short-funnel form. Petals 4, broad and sessile, entire, 

 emarginate or in one species 2-lobed, varying from phlox- or lilac- 

 purple or rose-color to nearly white. Stamens 8, those opposite the 

 petals shorter; anthers basifixed. Ovary 4-celled. Capsule ovate to 

 linear, mostly 4-sided, somewhat coriaceous, often longitudinally 

 ribbed, 4-celled, 4-valved. Seeds in 1 or 2 rows, more or less cubical 

 or quadrangular, usually obliquely pointed at one end, the opposite 

 end obliquely truncate and with a densely fimbriate-toothed or 

 tuberculate margin; angles often prismatic, rendering the seed strik- 

 ingly similar to that of Mentzelia. (C. H. Godet, 1797-1879, 

 author of " Flore de Jura.") 



Flowers in a lax spike or raceme; buds often nodding; capsules linear. 



Petals deeply 2-lobed 1. G. biloba. 



Petals not lobed. 



Capsules all or at least some pedicellate, not costate, but tbe callous lines 

 of dehiscence or septal lines often prominent. 



Petals y<t in. long or less , 2. G. epilobioides. 



Petals % in. long or more 3. G. amcena. 



Capsules sessile, bieostate on 4 or 2 sides (smoothish in var. tenella) . . . 



4. G. quadrivulnera. 



Flowers in a mostly dense spike; buds never nodding; capsule ovate to 

 oblong, bieostate on the sides. 



Spike with short branchlets 5. G .albescens. 



Spike simple 6. G. lepida. 



1. G. biloba Wats. One and one-fourth to 2 ft. high, usually 

 branching above; sparsely puberulent; leaves linear, 1 to If in. long, 

 petioled; calyx-tips remaining united and turned to one side in the 

 bud; petals purple, deeply 2-lobed, the lobes somewhat divergent, £ 

 in. long; style shorter or twice as long as the stamens; stigma lobes 

 £ line long, elliptic; capsule sessile or nearly so, smoothish. 



Briones Hills; Martinez; Antioch; Mt. Diablo; common in the 

 Sierra Foothills. May. 



2. G. epilobioides Wats. Tomentosely puberulent, £ to 2£ ft. 

 high; leaves linear (or inclined to lanceolate), denticulate; calyx red; 

 "petals light purple" (drying white), 3 to 6 lines long; capsule 

 acuminate at apex, attenuate to a short pedicel, rarely subsessile. 



Antioch, acc. to Brandegee in Herb. Cal. Acad.; Sierra Foothills, 

 acc. to Watson; Arroyo Grande, Monterey Co.; Southern California. 



3. G. amcena Lilja. Herald or Summer. One and one-fourth 

 to 2\ ft. high, of branching habit, sparsely puberulent or nearly gla- 

 brous; leaves oblong or widest below the middle, entire or remotely 

 denticulate, rather slender-petioled, 2^ in. long or less; sepals remain- 

 ing united and turned to one side, partly separating or separating in 

 pairs; petals nearly white to rose-color or phlox-purple, with splotch 

 in center or crimson base, cuneate-obovate, obtuse or truncate at apex, 

 abruptly short-clawed, £ to 1 in. long; anthers purple, 3 to 5 lines long, 

 the upper end empty and bright yellow; stigmas linear, whitish or 

 purplish, 1 to 2 lines long; capsule mostly long-pediceled or at firs* 

 nearly sessile, 1 to 1| in. long, terete, attenuate to each end, not 

 ribbed but the lines of dehiscence and the septal lines unusually 

 prominent. 



