Nicotiana. SOLANACE^. 241 



sinuate-toother] or somewhat pinnatifid, the upper all more or less clasping and partly de- 

 current; uppermost subtending the secund at length spicate flowers : corolla lurid-yellowish 

 with reticulated purple veins. — Waste grounds and roadsides. (Nat. from Eu.) 



13. C]&STRUM, L, (Ancient Greek name of some plant, applied by Lin- 

 nasus to this genus.) — Shrubs or low trees of tropical America. Leaves entire, 

 short-petioled, pinnately veined. Flowers variously clustered on axillary pe- 

 duncles, or forming a terminal panicle or corymb ; the corolla narrowly tubular- 

 funnelform or clavate : berries reddish or blackish. — Several are in cultivation, 

 both day-blooming and night-blooming, the latter very sweet-scented. One 

 species is sparingly spontaneous in Florida, viz. — 



C. DitJRNUM, L. Glabrous: leaves oblong, very bright green above: flowers sessile in a 

 short close cluster on an axillary peduncle : corolla white, enlarging very gradually from 

 base to summit, not narrowed at the throat, half an inch long, with lobes short and roundish, 

 open through the day. (Dill. Elth. t. 154, fig. 186.) — Key West. (Adv. from W. Ind.) 



14. NICOTIANA, Tourn. Tobacco. (In memory of John Nicot, who 

 was thought to have introduced Tobacco into Europe.) — Herbs, or one peculiar 

 species arborescent, mostly American, narcotic-poisonous, heavy-scented, usually 

 viscid-pubescent ; with entire or sometimes repand or pandurate leaves, and pani- 

 culate or racemose flowers. 



§ 1. TabXcum, Don. Capsule septicidal, dividing the two placentse ; the valves 

 at length 2-cleft at the apex: leaves ample: flowers diurnal, naked-panicled : 

 corolla funnelform with ventricose throat and acute or acuminate spreading lobes 

 or teeth, purplish-red or rose-color, sometimes white in cultivation. 



N. Tabacum, L. (Common Tobacco.) Tall annual, more or less glutinous-pubescent: 

 leaves from ovate- to narrowly lanceolate, acuminate, the lower commonly 2 or 3 feet 

 long: flowers pedicelled: corolla about 2 inches long. ^ Cult, from S. Amer., and sponta- 

 neous in waste grounds along the south-western borders of the United States. 



Var. UNDULATA, Sendtner, a marked form, with long and narrow lanceolate gradually 

 caudate-acuminate leaves, undulate below, and corolla-lobes caudate-acuminate. — Mart, 

 n. Bras. X. 166. N. lancifolia, Willd., & N. Yliarrensis, HBK. To this probably belongs the 

 Yaqui Tobacco, found by Dr. Palmer cultivated in Arizona, and also N. caudala, Nutt. PI. 

 Gamb., at Monterey, California. 



§ 2. NicoTiA, Gray. Capsule septifragal, 2-4-valved (in anomalous forms 

 several-valved) ; the thin dissepiment remaining with the entire central placenta : 

 corolla mostly white or greenish. Ours annuals. — Benth. & Hook. Gen. ii. 907. 



* Corolla oblong-inflated, open throughout the day: leaves all broad and petioled. 

 N. RUSTicA, L. A foot or two high, very viscid-pubescent : leaves ovate or the lower 

 rounder and subcordate, very obtuse (often a foot long) : flowers thyrsoid-paniculate : 

 calyx with broad round-ovate teeth, not equalling the globular at first merely 2-valved 

 capsule: corolla about three-fourths inch long, lurid yellowish or greenish, not thrice the 

 length of the calyx, inflated from a short narrow base and with contracted orifice ; the 

 short and rounded lobes reticulate-veiny. —Bart. PI. Am. Sept. i. 25; Reichenb. Ic. Fl. 

 Germ. xx. t. 1626. — Spontaneous in waste grounds, rare, formerly cult, by Indians. Prob- 

 ably indigenous to the Old World, but of unknown nativity. 



* Corolla salverform or tubular-funnelform: calyx-lobes narrow. 

 -H- Leaves undulate-crisped or repand, or panduriform, all the upper more or less clasping: flowers 

 vespertine: tube of the corolla almost filiform, U to2i inches long: filaments very short, mserted 

 in the throat: stem loosely branching, racemosely loose-flowered. 

 N. plumbaginif olia, ViV. Somewhat scabrous-pubescent or glabrate : cauline leaves 

 sessile and with partly clasping base, undulate and sometimes even crisped along the mar- 

 gins: the lowest oblong or obovate-spatulate ; the others oblong-lanceolate and acuminate, 



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