BOTANY. 
71 
two latter stations, some of the radieal leaves are rhomboidal, others are linear-spatulate, show¬ 
ing a tendency to pass into C. parviflora. 
C. perfoliata, var. parviflora : .foliis radicalibus lineari-spathulatis, caulinis in unum ovale 
perfoliatum coalitis. C. parviflora, Dougl. in Hoolc. FI. Bor.-Amer. 1 , p. 225, t. 73; Torr. & 
Gray, l. c.; C. gypsophiloides, Fisch. & Mey. Index. Sera. St. Petersb. (1835), p. 33. Hills, 
Middle Yuba (fine specimens, nearly a foot high). A dwarf form was collected near San Fran¬ 
cisco, April 3. 
C. perfoliata, var. exigua : nana; radicalibus anguste linearibus ; caulinis lanceolatis vel 
linearibus, suhconnatis. C. exigua, Torr. & Gray, FI. 1. c. San Francisco ; April 
A careful examination of our numerous specimens of annual Claytonim has led us to reduce 
several species to C. perfoliata, and we would add to the list of varieties C. spathulata. Inter¬ 
mediate forms connect all these. Hereafter it may he found necesasry to include C. tenuifolia. 
Claytonia linearis, Dougl. in Hook. FI. Bor.-Am. 1, p. 224, t. 71; Torr. & Gray, l. c. 
Wet places, Napa valley; April 26. The specimens are considerably larger than those of 
Douglas. The seeds are larger than in any other species of this genus; they are lenticular, 
acute on the margin, and highly polished. A very distinct species. 
Montia fontana, Linn.; DC. Prodr. 3, p. 361; Torr. Gray, FI. 1 , p. 202. In water; 
Duffield’s ranch. Sierra Nevada, May 11; San Francisco, April 8; Corte Madera, April 20. 
On the western side of America, the range of this plant extends from Sitcha to Quito, hut on 
the eastern side it has not been found south of Newfoundland. Chamisso (in Linnma 6, p. 565) 
considers the Quito plant as a distinct species, which he calls M. lamprosperma, and states that 
it occurs also in the island of Unalaschka, and at the Bay of Eschscholtz. In plate 7, figs. 1-2 
of the volume quoted, he has given figures of the seeds of that species, and of M. fontana. Our 
Californian plant has exactly the seeds of M. fontana, and Mr. Nuttall’s Oregon specimens have 
the same; hut M. fontana ft. from Sitcha, is M. lamprosperma of Chamisso. We find the seeds 
to vary in size and color, and Dr. J. D. Hooker, in FI. Antarct., p. 13, has shown that the 
two species are almost certainly not distinct. 
Lewisia rediviva, Pursh, FI. 1, p. 368; Hook. Bot. Misc. 1 , p. 344, t. 70; Torr. & Gray 
FI. 1 , p. 677. Rocky places, Napa valley; April 25. This interesting plant extends as far 
south as the American fork of the Sacramento. 
STERCULIACEflE. 
Fremontia Californica, Torr. in Smithson. Contrib. 6, p. 5, t. 2. Cajon Pass of the Sierra 
Nevada. The plants found by Dr. Bigelow were about 15 feet high, which is much taller than 
the specimens seen by Col. Fremont and Rev. Mr. Fitch. They were bearing ripe fruit on the 
16th of March, which must have been formed the previous season. The capsules are in perfect 
condition, and show that no part of the calyx is deciduous. The seeds are about as large as in 
Hibiscus Syriacus, ovate, black, smooth, and somewhat shining. Testa thick and crustaceous- 
Embryo straight, lying in fleshy and oily albumen; cotyledons ovate, foliaceous, nearly flat. 
In all of Dr. Bigelow’s specimens of the Fremontia, the leaves were small, few of them being 
more than an inch in diameter. 
MALYACE2E. 
Callirrhoe involucrata, Gray, PI. Fcndl., p. 15, and Gen. 111. t. 117. On the Canadian; 
September. 
Malvastrum coccineum, Gray, l. c. Upper Canadian, and near Galisteo, New Mexico. 
Malva borealis, Wallm.; Gray, PI. Fendl.,p. 15. M. obtusa, Torr. & Gray, FI. 1 . p. 225, 
A common weed in California. 
Sidalcea diploscypha, Gray, Gen. 111. 2, t. 222; Plant. Fendl., p. 19. Sida diploscypha. 
Torr. & Gray, FI. 1 , p. 234. Plains, lone valley, California; May 18. 
