390 



SOLANACEiE. 



the stamens, but situated near the base of the tube; anthers linear- 

 oblong, nearly or quite equaled by the filaments; styles slender, 

 mostly longer than the ovary; capsule depressed-globose, mostly 2 or 

 3 -seeded. 



On Eriogonum, Adenostoma, etc. Infrequent in tbe Bay Region: 

 Conn Valley; Morrison Canon, Niles, June 20, 1897, in fl., anthers 

 sessile at the sinuses of the corolla; Pacheco Pass, on Eschscholtzia, 

 Brewer, no. 1292. 



85. SOLANACE/E. Nightshade Family. 



Ours herbs (one species a soft-woody shrub) with alternate leaves. 

 Flowers hypogynous, regular, perfect and commonly 5 (rarely 4)- 

 merous, except the superior ovary which is 2-celled or falsely 4-celled. 

 Flowers solitary, umbellate, cymose or paniculate, on lateral or ter- 

 minal peduncles. Calyx toothed, lobed or cleft. Stamens as many 

 as the lobes of the corolla and alternating with its divisions. Fruit a 

 berry or a capsule. 



Corolla tubular or funnelform ; fruit a capsule. 



Capsule 2-celled, smooth ; flowers in a terminal panicle. . .1. Nicotiana. 



Capsule falsely 4-celled, prickly ; flowers solitary, very large . 2. Datura. 

 Corolla rotate; fruit a berry; flowers in umbels or cymes ... 3. Solantjm. 



1. NICOTIANA L. Tobacco. 

 Heavy scented usually viscid-pubescent herbs (except one) with 

 entire leaves and panicled flowers. Calyx persistent, more or less 

 investing the fruit, 5-toothed or -lobed. Corolla funnelform or salver- 

 form, plicate and somewhat imbricate in the bud. Filaments filiform, 

 mostly included. Ovary 2-celled, with large and thick placenta. 

 Fruit a smooth 2-celled capsule, septicidal, and the valves promptly 

 2-cleft at apex, thus seeming as if 4-valved. Seeds small, numerous. 

 (Jean Nicot, 1530-1600, French diplomat and author of the most 

 ancient dictionary of the French language, but more celebrated as 

 having introduced tobacco into France from Portugal.) 



Annuals; flower white. 

 Cauline leaves sessile; calyx-teeth as long as tube; corolla-limb broad. . . 



1. N. Bigelovii. 



Cauline leaves petioled; calyx-teeth commonly short, }± to ]A as long as 



tube; corolla-limb narrow . . .2. N. attenuata. 



Perennial soft-woody shrub; flowers yellow; throat of corolla constricted 

 under the narrow limb 3. N. glauca. 



1. N. Bigelovii Wats. Stem simple at base and branched above, 

 or branched near the base, 1^ to 2 ft. high; herbage with glandular 

 indument, very ill-smelling; radical leaves oblong-ovate, acute, 

 petioled; cauline similar, sessile (the lower sometimes petioled), often 

 contracted above the middle into a lanceolate apex, the uppermost 

 lanceolate; flowers few, mostly remote along the branches; calyx with 

 slender teeth as long as the tube; corolla-tube 1J in. long, the limb 

 1 in. wide; filaments unequally inserted high in the tube, glabrous; 

 capsule obtuse, shorter than the calyx. 



