EVENING PRIMROSE FAMILY. 279 



8, those opposite the petals shorter; anthers basifixed. Capsule linear, rarely 

 ovate. 4-sided or terete, mostly longitudinally ribbed, 4-celled, 4-valved. Seeds 

 in 1 or 2 rows, more or less cubical or elongated, often obliquely pointed at 

 one end, the opposite end more or less obliquely truncate; chalaza central 

 and the edges margined. (C. H. Godet, 1797-1879, author of " Flora de 

 Jura.") 



A. Flowers loosely spicate; capsule mostly terete, sometimes ribbed. 

 Buds nodding; calyx-lobes remaining united and turned to one side under the open flower 



1. G. biloba. 

 Buds usually erect. 



Calyx-tube long (2^ to 5 lines), the lobes remaining united and turned to one side 

 under the open flower; capsule not ribbed. 

 Flowers loosely spicate-paniculate; capsule shortly attenuate at apex... 2. G. amoena. 

 Flowers spicate or on short slender branchlets of the single main stem; capsule thick, 



blunt at apex 3. G. blasdalei. 



Calyx-tube short (1 to l l / 2 lines), the lobes usually distinct; capsule more or less 

 ribbed. 

 Capsule long and slender, not strongly ribbed; spikes usually long and flowers 



scattered 4. G. quadrivulnera. 



Capsule short and thick, strongly ribbed, hairy; spikes short or at least not loose 



5. G. goddardii 

 B. Flowers in dense clusters; capsule 4-sided, 8-ribbed. 

 Petals 5 to 11 lines long. 



Ovary hairy; petals pale crimson with a dark blotch at apex 6. G. purpurea. 



Ovary glabrous; petals rose-red, without blotch 7. G. arnottii. 



Petals large, \ l / 2 to 1^4 in- long; north coast of California 8. G. grandiHora. 



1. G. biloba (Dur.) Wats. Freely branching, 1% to 2 ft. high, or on 

 poor soil or in exposed situations frequently simple and less tall; leaves oblong- 

 lanceolate or linear, % to 2 in. long, entire or remotely denticulate, the lower 

 on long slender petioles; buds nodding, narrowly ovate, commonly abruptly 

 tipped with a slender point; calyx-lobes united and turned to one side in 

 anthesis, purplish brown, the tips not free in the bud; petals broadly cuneate, 

 emarginate or with a deep v-shaped notch at apex, 5 to 11 lines long; capsule 

 4-sided, weakly 8-ribbed, 5 to 7 (11) lines long, on pedicels y 2 to 1 line long; 

 calyx-tube with a dense ring of short white hairs at the mouth. 



Sierra Nevada foothills, 1500 to 2000 ft.; northern Contra Costa Co. 



2. G. amoena (Lehm.) Lilja. Summer's Darling. Erect, simple or more 

 commonly branching, 1 to 3 ft. high; leaves linear to lanceolate, narrowed 

 at base to a petiole or sessile, y 2 to 2 in. long (or with smaller ones fascicled 

 in the axils), the uppermost half-conduplicate and curved; buds erect, rarely 

 drooping; calyx-lobes united and turned to one side in anthesis but usually dis- 

 tinct at base, less commonly wholly distinct, 6 to 11 lines long, their tips not 

 free in the bud; petals lilac-crimson or red-pink, often with a darker central 

 splotch and base, abruptly narrowed to a short claw, 7 to 11 lines long; 

 stigmas yellow, linear, IV2 to 3 lines long; ovary canescent, sessile or very 

 shortly pediceled; capsule teretish, not ribbed, tapering very slightly to each 

 end, 1 to 1% in. long. 



Near the coast from the Santa Cruz Mts. north to British Columbia. Very 

 common and showy on shady banks or bushy hillslopes in San Mateo Co., Oak- 

 land Hills and Marin Co. July-Aug. 



G. bottae Spach. Tall; flowers pink or light crimson, showy, on pedicels % 

 to 1% in. long; stigmas oblong or elliptic but united at base so as to form a 

 swollen somewhat cup-shaped apex to the style. — Monterey Co. and southward to 

 Southern California. 



3. G. blasdalei J epson. Stem erect, often stout, simple or with slender 



