276 
BOTANY. 
Datura Stramonium, L. Wahsatch Mountains, at the mouth of Cot- 
tonwood Canon. Introduced. (943.) 
NicoTiANA ATTENUATA, Torr., in Herb. Annual, glutinous-pubescent 
or somewhat glal^rate, erect, 1-3° high, branched ; leaves oblong-lanceolate, 
the uppermost linear, acuminate, attenuate into a petiole, entire or obscurely 
repand-dentate ; flowers in loose terminal racemes ; calyx 3'^ long, tubular- 
campanulate, teeth short, triangular, acute, equal ; corolla narrow-funnelform, 
1' long, the short (2") limb spreading or more usually erect and closed, the 
lobes short and obtuse ; capsule 3-5" long, exceeding the calyx, ovate, acute, 
2-valvcd, valves 1)ifid. — Lower leaves 4-6' long and 1-2' wide, proportionately 
narrower above ; capsule becoming half-longer than the calyx ; seeds pitted. 
A quite distinct species, rather common in the valleys and dry lower canons 
of Nevada. It is 38 and 289 Anderson, from near Carson City ; 354 Torrey 
from Lake Washoe ; 75 Xantus from Fort Tejon, Southern California ; also 
found by Vasey on Bear Creek, 12 miles west of Denver, and by Palmer in 
Southern Utah. JV. iimmopsijlora is somewhat similar but has sessile clasping 
and more olilong leaves, and the flowers are in long secund racemes. Plate 
XXVII. Fig. 1. A branch and portion of the stem; natural size. Fig. 2. 
A lower leaf; full size. (944.) 
Nicotiana ISigelovii. {N. plumhaginifolia^ Var. (?) Bigelovii, Torr. 
Pac. R. R. Surv., 4. 127.) Leaves sessile, attenuate at base ; calyx glandular- 
pubescent, with unequal lance-linear lobes; corolla 2' long, tubular-funnel- 
fbrm, the elongated tul)o 2-3 times longer than the calyx, the lobes broad- 
ovate, subacute ; capsule obtuse, usually 4-6" long, shorter than the calyx ; 
otlierwise much like the last.— Collected by Bigelow, Fremont, (481, 1846,) 
and Torrey, (355,) in California, and by Anderson, (268,) in Western Nevada. 
Much reseuibling N. noctijlora, of Chili, but the leaves are more attenuate at 
base and the corolla-lobes are not at all obcordate. Plate XXVII. Fig 3. 
Extremity of a Ijranch. Fig. 4. A lower leaf; natural size. 
GENTIANACEiE. 
Erythr^a Nuttallil Erect, loosely branched ; leaves linear-oblong, 
6-12" long, acute, not rosulate at base ; panicle loose, dichotomous, few- 
flowered ; flowers on elongated slender peduncles ; calyx-lobes narrowly subu- 
late, acute, a little shorter than the corolla-tube; corolla pink, contracting 
over the capsule and usually becoming somewhat twisted ; lobes elliptic- 
