18 [74| ao 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.—Gray, Mss. _ 
Acer MackopuyttuM, Pursh, Fl. 1, p. 267; Hook. Fl. Bor.—Am. 1, p. 112, t. 38; Nutt. Sylv. 
2, p. 76, ¢. 67. 
Nee@unpo acerowwes, Moench. Meth., p. 334; Torr. & Gray, Fl. 1, p. 260; N. Californicum, 
Torr. & Gray, l. ¢.; Nutt. Sylv. 2, p. 90, t.°12. Acer Negundo, Zinn. Corte Madera, April 
10, (in flower.) 
SAPINDACE. 
AAscunus Catrrornica, Nuit. in Torr. & Gray, Fl. 1, p. 251; and Sylv. 2, p. 69, ¢. 64. Hill- 
sides, Sonoma, May 3, in flower ; mountains near Oakland, (leaves only.) 
Aiscunus FLAVA, Art.; Pursh, Fl. 1, p. 255. On the Canadian, near the Shawnee villages, 
and Deer creek; August. In fruit. 
SaPINDUs MaRernatus, Willd.; Gray, Gen. Ill. 2, t. 180. Creek bottoms, on the Upper Cana- 
dian ; September. In fruit. , 
CarRDIOsPERMUM Haticacasum, Linn. Deer creek ; August. 
CELASTRACE. 
Pacuystma Myrsintres, Raf. in Amer. Month. Mag., 1818; Gray, Pl. Fendl., p. 29.. Lex? 
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 occwentauis, Nutt. Mss. E. atropurpureus 8? Torr. & Gray, Fl. 1, p. 258. 
Head of Tomales bay; April 17. Leaves ovate, mostly obtuse, at the base quite smooth. 
Peduncles 8-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. Cafions in the Llano Estacado ; 
September. Without flowers or fruit. * 
RHAMNACE. 
Ruamyvs croceus, Nutt. in Torr. & Gray, Fl. 1, p. 261. Hills near Sonora, May 9; Rocky 
hills, 80 miles west of the Colorado. Leaves often green underneath. 
Franeuta Catrrornica, Gray, Gen. Ill. 2, p. 178; and Pl. Wright. 2, p. 28. Rhamnus Cali- 
fornicus, Esch.; Torr. & Gray, Fl. 1, p, 263. R. oleifolius, Hook, Fl. Bor.—Am, 1, p. 123, 
t. 44. RB. 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. e. 
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,¢. 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. 
CeanoTuvs sorepidgus, Hook. & Arn. Bot. Beech, p. 328; Torr. & Gray, Fl. 1. p. 686. Hill- 
sides, Grass valley; May 9-19. A neat little shrub, 4-5 feet high, (sometimes prostrate,) with 
