304 
SOLANACEAE. 
9. NICOTIANA L. Tobacco. 
Leaves clasping at the base; flowers diurnal. 1. N. trigonophylla. 
Leaves petioled, not clasping at the base; flowers nocturnal. 2. N. attennata. 
1. Nicotiana trigonophylla Dunal. In dry grounds from Colo, and Utah 
to Tex. and Calif.; also in Mex.—“Southern Colorado” {Parry). 
2. Nicotiana attenuata Torr. In dry or sandy ground from Mont, and 
B. C. to N. M. and Calif.—Alt. 6000-7000 ft.—Gypsum, Eagle Co.; Black 
Canon; Salida; Glenwood Springs, Garfield Co.; Montrose; McElmo Canon; 
Hotchkiss; Rustic; mountains between Sunshine and Ward. 
Family 120. RHINANTHACEAE St. Hil. Figwort Family. 
Anther-bearing stamens 5. 
Corolla rotate. 1. Verbascum. 
Corolla funnelform, 2-lipped. (Occasional forms of) 5. Pentstemon. 
Anther-bearing stamens 4 or 2. 
Corolla spurred or saccate at the base on the lower side. 2. Linaria. 
Corolla neither spurred nor saccate on the lower side. 
Stamens 5, 4 anther-bearing, the fifth sterile and often rudimentary. 
Sterile stamen rudimentary, represented by a scale or gland on the upper 
inside of the corolla-tube or throat; corolla short. 
Corolla gibbous at the base on the upper side ; ovules and seeds few or 
solitary; annuals. 3. Collinsia. 
Corolla not gibbous at the base, but more or less ventricose especially 
on the lower side ; ovules and seeds numerous; perennials. 
4. SCROPHULARIA. 
Sterile stamen elongated, filiform to spatulate; corolla-tube elongated, 
tubular or funnekform. 
Inflorescence thyrsoid-paniculate; seeds not with an ariliform, cellular- 
reticulate outer coat; corolla not gibbous at the base above; calyx 
deeply cleft. 5. Pentstemon. 
Inflorescence racemose or spiciform; seeds with an ariliform, cellular- 
reticulate outer coat, calyx obtusely 5-lobed. 6. Ciiionophila. 
Stamens 4 or 2. 
Upper lip or lobes of the corolla external in the bud. 
Anther-bearing stamens 4. 
Corolla more or less bilabiate; sepals united into an angled tube; 
plants leafy-stemmed. 7. Mimulus. 
Corolla nearly regular; flowers solitary on scape-like peduncles from 
the basal rosette of leaves ; plant acaulescent. 8 . Limosella. 
Anther-bearing stamens 2; calyx of 5, almost distinct sepals; sterile 
filaments short or wanting. 9. Gratiola. 
Lower lip or lobes of the corolla external in the bud. 
Stamens 2. 
Corolla almost regularly 4-lobed. 10. Veronica. 
Corolla none or 2-lipped, cleft to near the base; upper lip entire; 
lower irregularly cleft or toothed. 11. Besseya. 
Stamens 4. 
Corolla slightly 2-lipped; stamens not ascending under the upper lip. 
12. Gerardia. 
Corolla distinctly 2-lipped; stamens ascending under the upper lip. 
Anther-sacs dissimilar; the inner one pendulous by its apex; leaves 
mostly alternate. 
Calyx gamosepalous, i. e., all the sepals united below into a tube. 
Calyx deeply cleft in front and behind, less deeply so (some¬ 
times not at all) on the sides; upper lip of the corolla much 
longer than the 3-lobed lower one. 13. Castilleja. 
