74 BOTANY. 
in the Sandia mountains; October. In fruit. While some of the leaves are trifoliate, others 
on the same branch are only three-lobed, and so much resemble those of A. glabrum that the 
species probably cannot be kept distinct.—G'ray, Mss. 
ACER MACROPHYLLUM, Pursh, Fl. 1, p. 267; Hook. Fl. Bor.—Am. 1, p. 112, t. 38; Nutt. Sylv. 
2, p. 16, t. 67. 
NEGUNDO ACEROIDES, Moench. Meth., p. 334; Torr. € Gray, Fl. 1, p. 260; N. Californicum, 
Torr. € Gray, l. c.; Nutt. Sylv. 2, p. 90, t. 12. Acer Negundo, Linn. Corte Madera, April 
10, (in flower.) 
SAPINDACEZ. 
JEscuLUs CALIFORNICA, Nutt, in Torr. & Gray, Fl. 1, p. 251; and Sylv. 2, p. 69, t. 64. Hill- 
sides, Sonoma, May 3, in flower ; mountains near Oakland, (leaves only.) 
AESCULUS FLAVA, Art.; Pursh, Fl. 1, p. 255. On the Canadian, near the Shawnee villages, 
and Deer creek; August. In fruit. 
SAPINDUS MARGINATUS, Willd.; Gray, Gen. IH. 2, t. 180, Creek bottoms, on the Upper Cana- 
dian; September. In fruit. 
CARDIOSPERMUM HALICACABUM, Linn. Deer creek; August. 
CELASTRACEAE. 
PACHYSTIMA MYRSINITES, Raf. in Amer. Month. Mag., 1818; Gray, Pl. Fendl., p. 29. Ilex? 
Myrsinites, Pursh, Fl. 1, p. 119. Oreophila myrtifolia, Nutt. in Torr. & Gray, Fl. 1, p. 
259.—Sandia mountains, New Mexico ; October; in fruit. Hill-sides. South Yuba, California ; 
May 26. The leaves are larger than in the Oregon plant, and sharply serrate. The woody 
stem is of extremely slow growth, several annual circles being included with one-tenth of an 
inch. 
Evonymus OCCIDENTALIS, Nutt. Mss. E. atropurpureus B? Torr. € Gray, Fl. 1, p. 258. 
Head of Tomales bay; April 17. Leaves ovate, mostly obtuse, at the base quite smooth. 
Peduncles 3-flowered. Flower pentamerous, larger than in E. atropurpureus. The fruit is 
unknown. 
CELASTRUS SCANDENS, Linm. Pecan creek; August. In fruit. 
GLOSSOPETALON SPINESCENS, Gray, Pl. Wright. 2, p. 29, t. 12. Cañons in the Llano Estacado ; 
September. Without flowers or fruit. 
RHAMNACEZ. 
RHAMNUS CROCEUS, Nutt. in Torr. & Gray, Fi. 1, p. 261. Hills near Sonora, May 9; Rock 
hills, 80 miles west of the Colorado. Leaves often green underneath. 
FRANGULA CALIFORNICA, Gray, Gen. Ill. 2, p. 118; and Pl. Wright. 2, p. 28. Rhamnus Cali- 
fornieus, Esch.; Torr. € Gray, Fl. 1, p. 263. R. oleifolius, Hook. Fl. Bor.—Am. 1, p. 123, 
t. 44. R. laurifolius, Nutt. in Torr. € Gray, Fl. l. c. Hill-sides, Robinson's ferry, Stanislaus, 
May 14; a variety, with larger leaves, softly pubescent on both sides; Napa valley, May 5, 
(leaves nearly glabrous both sides, and with obtuse serratures;) mountains near San Gabriel, 
March 23, (glabrous leaves, with acute serratures): var. TOMENTELLA, Gray, Pl. Wright. l. c. 
Rhamnus tomentellus, Benth. Pl. Hartw. p. 303. Butte mountains, near Marysville, May 25. 
A plant of very diverse appearance ; but its extreme forms pass insensibly into each other. In 
favorable situations it attains the height of 18 feet. 
CEANOTHUS THYRSIFLORUS, Esch.; Torr. & Gray, Fl. 1, p. 266 ; Bot. Reg. 30, t. 38; Nutt. Sylv. 
2, p. 43,4. 57. Punta de los Reyes, April 18; San Francisco, April 3; hill-sides, Napa valley, 
April 27. A beautiful shrub, known in its native country under the name of California lilac. 
CEANOTHUS SOREDIACUS, Hook. de Arn. Bot. Beech. p. 328; Torr. & Gray, Fl. l. p. 686. , Hill- 
sides, Grass valley; May 9-19. A neat little shrub, 4-5 feet high, (sometimes prostrate,) with 
