BOTANY. 
73 
times a foot or more in length. It is only the portion near the leaf-hearing extremity that has 
the scales imbricated ; on the other parts they are distant and alternate. 
Ox alts stricta, Linn .; Torr. FI., New York, 1, p. 123. Plains near San Gabriel, March 23' 
LIMNANTHACEiE. 
Limnanthes rosea, Benth. PI. Hartw., p. 302; u Jour. Hort. Soc. 4, t. 78.” Low wet 
places, Corte Madera; Stanislaus ; Los Angeles, etc. March—May. Scarcely distinct from 
L. Douglasii; the divisions of the leaves being, in some of Douglas’ original specimens, quite 
as narrow as those of L. rosea. In cultivated specimens of the latter the ultimate segments of 
the leaves are broader than in the wild plant. 
Limnanthes alba, Benth. 1. c. Hill-sides, Duffield’s ranch, Sierra Nevada, May 12. This 
seems to be a very distinct species, and is obviously distinguished by its hairiness. 
RUTACE2E. 
Thamnosma montanum, (Torr. & Frem.:) fruticosum, ramosissimum ; ramis spinescentibus ; 
foliis crassiusculis lineari-spathulatis obscure punctatis; antheris sagittatis promisse mucronatis ; 
disco parvo stipite fructifero (sesquilineari) columnari multum breviore ; capsula didyma basi 
retusa ; seminibus cochleatis lfevibus. (Tab. III.)— Torr. & Frem. in Frem. 2d. Rep., p. 313. 
Dry ravines of the Mohave, near the Colorado, March 3-9. The description in the work here 
quoted was drawn from imperfect materials, and the plant was incorrectly referred to Zanthox- 
ylaceae, instead of Rutacem proper. The aestivation of the corolla is imbricated, not valvate. 
The stamens and filiform style are more or less exserted. Stigma small and capitate. Albu¬ 
men thin. Rutosma of Gray must be included in this genus. 
Ptelea trifoliata, Linn. B. mollis, Torr. & Gray, FI. 1, p. 680 ; Gray, PI. Wright. 1 , p. 
31. Rocky hills of the Upper Canadian ; September. In fruit. 
ANACARDIACEiE. 
Rhus trilobata, Nutt, in Torr. & Gray, FI. 1, p. 219. Hilly prairies on the Canadian ; 
September. In fruit. 
Rhus diversiloba, Torr. & Gray, FI. 1, p. 218. R. lobata, Hook. FI. Bor. Am. 1, p. 127, 
t. 46, non Poir. Plains and mountains near San Gabriel, March 23; Martinez, April 23. The 
specimens are all male. 
Styphonia integrifolia, Nutt, in Torr. & Gray, FI. 1, p. 220; Nutt. Sylv. 3, p. 4, t. 82. 
Ravines, Cojon Pass; March 17. The leaves are three inches long, and nearly two inches wide, 
ovate, with a short acumination. Dr. Parry collected similar specimens near Santa Barbara. 
S. serrata is probably not a distinct species. 
Lithraia laurxna, Walp. Report. 1, p. 551. Rhus laurina, Nutt, in Torr. & Gray, FI. 1 , p. 
219. Near San Gabriel, March 23, (in fruit; doubtless of the preceding season.) The thin 
pulp of the dry fruit consists chiefly of a white waxy material, which is soluble in very strong 
alcohol, and seems to be almost entirely cerine. 
YITACEflE. 
Vitus incisa, Nutt, in Torr. & Gray, FI. 1, p. 241. Gypsum rocks, Elm creek ; August. 
Vitus rupestris, Scheele in Linncea 21, p. 291, On the Canadian, Pecos, etc. August— 
September. In fruit. 
ACERACEiE. 
Negundo aceroides, Mcench. In a canon on the Pecos ; September. In fruit. 
Acer tripartitum, Nutt, in Torr. & Gray, FI. 1, p. 247 ; Gray, PI. Fendl., p. 28. Arroyas 
10 r 
