10 | BOTANY. 
HELIANTHUS PETIOLARIS, Nutt. Torr. and Gray’s Flora, vol. 2, p. 319. Pos& creek; August. 
HELIANTHUS DORONICOIDES? A glaucous variety, with striate purple stems, from 6-10 feet 
high. Tejon valley; September. 
HEMIZONIA ANGUSTIFOLIA, D. C. Torr. and Gray's Flora, vol. 2, p. 398. Fort Miller; July. 
HEMIZONIA PUNGENS, Torr. and Gray’s Flora, vol. 2, p. 399. In flower and fruit. Pose 
creek; August and September. | 
el MACRADENIA, D. C. Torr. and Gray's pd vol. 2, p. 400. Tejon valley; Sep- 
tember. 
ARTEMISIA DRACUNCULOIDES, Pursh. Torr. and Gray’s a vol. 2, p. 416. Abundant in the 
Tejon valley and all over the country; August and September. 
ARTEMISIA DOUGLASIT, Bess. Torr. and Gray’s Flora, vol. 2, p. 420. With the above; also 
very common. 
GNAPHALIUM SPRENGELII, Hook and Arn. ; ور‎ and Gray’s Flora, vol. 2, p. 447. G. luteo- 
album, Var.; occidentalis, Nutt. Posé SR August. 
SENECIO LONGILOBUS, Var. glabrescens, Gray, Pl. Wright, No. 399. Posé creek; August. 
STEPHANOMERIA PANICULATA, Nutt. in Torr. and Gray’s Flora, vol. 2, p. 473. Tall and branch- 
ing; growing in large patches. King's river; July. 
OLEACEAE. 
FRAXINUS JUGLANDIFOLIA, Var. integrifolia, Lam. in D. C. Prodr., vol. 8, p. 278. Fraxinus 
viridis, Mich. A large spreading tree on the edge of streams. Pos& creek; August. 
APOCYNEE. 
APOCYNUM CANNABINUM, Var. lanceolatum, nova varietas. Leaves lanceolate, acute at both 
ends; very glabrous. River bottoms, Pos& creek ; August. 
ASCLEPIADEA. 
_ ASCLEPIAs MACROPHYLLA, Nutt. Var. comosa, nova varietas. Tota planta, exceptis pedunculis, 
pedicellis umbellarumque involucellis pubescentibus, glaberrima glauca. Caulis gracilis 
bipedalis subflexuosus erectus, internodiis aliquoties bipollicaribus. Folia spithamea, ad pri- 
mum quemque nodum opposita, ceterum ternatim verticillata, in sicco conduplicata, margin- 
ibus haud revolutis. Ramuli singuli vel bini in verticellis exiles, dense foliosi. Umbellse 
bine vel trine in verticillis supremis, pedunculis sesquipollicaribus, involucris lineari brac- 
teatis, floribus parvis, numerosis, (usque ad quadraginta,) mediam folii partem vix squantes. 
Pedicelli dimidia pedunculorum longitudine. Flores virescentes, albido marginati nec fusci. 
Corollz lobi ovato-lanceolati concavi, resurgentes margine albo. Corone stamineæ stipes eadem 
ac loborum longitudine; lobi producti, breves obtusi, processibus cultriformibus, cristas con- 
nectivorum albo scariosas aaquantibus. 
Stem erect, slender, rather flexuose, about 2 feet high ; leaves a span long, linear, smooth, 
doubled up without revolute margins, in whorls of three, except at the lowest node of each 
shoot, where they are opposite—internodes 2” or more long, each with one or more slim and 
densely-leaved branchlets, giving it a comose appearance. Umbels 2-3 in each of the upper 
whorls, scarcely half the length of the leaf, with pedicels half the length of the peduncles, and, 
together with the involucral bracts, somewhat tomentose. Stipe of the staminal crown, about 
thelength of its lobes, claws cultriform, erect, as high as the white tips of the connectives. 
Perhaps a new species ? 
