BOTANY. 13 
SOLANACEJE. 
SOLANUM PTEROCAULUM, Dunal in D. C. Prodr., vol. XIII, sect. 1, p.52. Posé creek; July. 
SoLANUM ÜALIFORNICUM ? Dunal in D. C. Prodr., vol. XIII, sec. 1, p. 86. A spreading plant 
not over a foot high, with purplish black berries and large light purple flowers. Fort Miller; 
July. 
Datura METEL, Linn. in D. O. Prodr., vol. XIII, sec. 1, p. 543. Abundant at Fort Miller 
and upwards; July. 
SALSOLACER. . 
OBIONE OCCIDENTALIS, Mog. in D. C. Prodr., vol. XIII, sec 11, p. 112. Side hills, abundant 
in southern California; August. 
OBIONE BarcLayana? Benth. in D. O. Prodr., vol. XIII, sec. 11, p. 112. Differs by the 
petioles being 1-3" long. We have only the male flowers. Growing in bushes, rounded in 
their forms, about six feet high. Branches numerous, forming a thick and dense mass. Posé 
creek ; August. 
ÜBIONE BRACTEOSA, nova species. Planta herbacea, 2-3-pedalis, oleracea farinoso-lepidota, 
monoica. Rami sulcati, apicibus masculiferis paniculatis ; parte inferiori foliosa et singulis 
axillis spicam foemineam bracteosam prodentes. Internodia 4” vel minora. Folia fusco-viridia 
glauca membranacea, sessilia, lanceolata acuminata mucronata, passim dentata vel integra, 
pollicaria vel minora, superne minus lepidota. Florum masculorum glomeruli globosi, in spicas 
laxiores, paniculum ebracteatum terminalem constituentes, dispositi. Flores feminei in brac- 
tearum axillis glomerati; bractes attenuate, maxime acutate, albido-lepidote. Thece imma- 
ture 1" longe, subgloboso-lenticulares, reticulate, cristis foliaceis muricatz, alate acuteque 
apicatæ. i 
An herbaceous moncecious plant, 2-3 feet high, with furrowed branches about a foot or more 
long. The top nearly destitute of leaves, branching into a panicle composed of simple inter- 
rupted spikes of globosely-glomerate male flowers, and the lower part bearing in the axil of each 
leaf a bracteose spike of female flowers. Internodes i" or less. Leaves oleraceous, sessile, 
lanceolate acuminate, mucronate, sparsely dentate or entire, 1” or less long, darkish, rather 
glaucous, less lepidote on the upper surface. Female spikes crowded with attenuated and 
strongly pointed whitish lepidote bracts. The immature thece orbicularly subglobose, reticu- 
lated, winged, muricated, and acutely tipped with jagged leafy crests. Growing in large 
bushes in bottom lands. Posé creek ; August. i 
POLYGONACEA. 
ERIOGONUM ANGULOSUM, Benth. in D. C. Prodr., vol. XIV, now in press; E. Simpson, Torr. 
ined. About a foot high, very tomontose. Leaves, above the baseal whorl, by twos, 
besides the clasping reflexed and very brittle bracts that in the number of 3 are present at 
each node throughout the genus. Pedicels smooth, setiform, unilateral. Involucre turbinate. 
Paleolee obovate spathulate, very woolly, verdant or brownish at their exserted tips. Flowers 
Small, numerous, whitish or light flesh-colored. We have two states of inflorescence different 
"n appearance. ` Posé creek ; September, on the margin of streams. 
ERIOGONUM FASCICULATUM, Nutt? A low, stoutish, and much branched shrub, with a brown 
tattered bark on the lowest branches. Leaves elliptic oblong, fasciculate and slightly revolute, 
