10 
BOTANY. 
Helianthus petiolaris, Nutt. Torr. and Gray's Flora, vol. 2, p. 319. Pose 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. 
Hemizonia macradenia, D. O. dorr, and Gray’s Flora, vol. 2, p. 400. Tejon valley; Sep¬ 
tember. 
Artemisia dracunculoides, Fursh. dorr, and Gray’s Flora, vol. 2 ,p. 416. Abundant in the 
Tejon valley and all over the country; August and September. 
Artemisia Douglasii, Bess. Torr. and Gray’s Flora, vol. 2, p. 420. With the above; also 
very common. 
Gnaphalium Sprengelii, Hook and Am.; Torr. and Gray’s Flora, vol. 2, p. 447. G. luteo- 
album, Var.; occidentalis, Nutt., Pose creek; August. 
Senecio longilobus, Var. glabrescens, Gray, PI. Wright, No. 399. Pose 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. 
OLEACEiE. 
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. Pose creek ; August. 
APOCYNEiE. 
Apocynum cannabinum, Var. lanceolatum, nova varietas. Leaves lanceolate, acute at both 
ends ; very glabrous. River bottoms, Pose creek ; August. 
ASCLEPIADEtE. 
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 spitham®a, ad pri- 
mum quemque nodum opposita, cet®rum ternatim verticillata, in sicco conduplicata, margin- 
ibus baud revolutis. Ramuli singuli vel bini in verticellis exiles, dense foliosi. Umbell® 
bin® vel trin® in verticillis supremis, pedunculis sesquipollicaribus, involucris lineari brac- 
teatis, fioribus parvis, numerosis, (usque ad quadraginta,) mediam folii partem vix ®quantes. 
Pedicelli dimidia pedunculorum longitudine. Flores virescentes, albido marginati nec fusci. 
Coroll® lobi ovato-lanceolati concavi, resurgentes margine albo. Coron® stamine® stipes eadem 
ac loborum longitudine ; lobi producti, breves obtusi, processibus cultriformibus, cristas con- 
nectivorum albo scariosas ®quantibus. 
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 brancblets, 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 
the length of its lobes, claws cultriform, erect, as high as the white tips of the connectives. 
JPerhaps a new species ? 
