138 BOTANY. 
GaLIuM MicRoPHYLLUM, Gray (Pl. Wright. 1, p. 80).—Smooth, ascend- 
ing, ribbed stems, quadrangular, with obtuse angles; four linear-lanceolate 
leaves in a whorl, 3-5” long, with distinct mid and marginal nerves, some- 
what apiculate; peduncles axillary, one-flowered, or more frequently (in my 
specimens) proliferous from the involucre; fruit pruinose—Tanks south 
of Camp Apache, Ariz. (271). A well-marked species. 
GALIUM ASPERRIMUM, Gray.—(425), from Mount Graham, Arizona, 
appears to be a form of this, with the fruit minutely tuberculate. 
GaiuM asPerRIMUM, Gray? (Pl. Fendl. p. 60).—Mount Graham, Ari- 
zona, 9,000 feet altitude (425). Ovary in my specimens minutely tuber- 
eulate, rather than hairy. Mature fruit I have not seen. Indeed, I am not 
sure that the specimen may not. prove to be G. Aparine, to which it appears 
closely related. If so, then it must be truly indigenous. 
Gaium TRIFIDUM, L.—San Luis Valley, Colorado (15, 16). 
GaLiuM BoREALE, L.—Common and variable, in Colorado (17); Utah 
VALERIANACEE 
PLEctTRITIS congEsTA, DO.—Nevada 
VALERIANA DioIca, L., var. syLvATICA, Watson.—South Park, Colorado, 
at 10,000 feet (773). 
VALERIANA EDULIS, Nutt (V. ciliata, T. & G.)—Radical or stem leaves 
may be entire or pinnately parted, or with any degree of division between. 
Valerian odor is very strong in this species on boiling—South Park (774). 
COMPOSITA. 
Stevia * canescens, Benth —Erect, 4-6° high, glabrous or puberulent 
below, rather roughly canescent above; leaves linear or oblanceolate, with 
smaller ones fascicled in their axils, serrate toward the apex, entire and 
*SrEvia, Cav.—Flowers of the head all perfect and tubular. Involucre of 5-6 narrow, hard, 
subequal bracts. Receptacle flat, naked. Corollas equal, regular, slender; limb sometimes rather large, 
left. Stamens appendiculate, obtuse at base. Branches of the style long, slender, and obtuse. Achenia 
linear, 4-5-angled. Pappus of two kinds, i. ¢., small scales and bristle-like awns, one or both kinds present 
in the same flower.—Herbs or erect shrubs, not usually much branched. Leaves opposite, or the upper 
alternate, often 3-nerved and serrate, or sometimes 3-cleft or entire. Heads irregularly loosely paniculate 
or in a close corymb. Flowers white or purple, sometimes a little longer than the involucre. Achenia 
smooth or ciliolate on the angles.—BentHamM & HOOKER. 
