Rhus. ANACARDIACE^. 385 



pair of transverse bractlets ; inflorescence of sliort and at first commonly amentiform 

 spikes, either solitary or thyrsoid-glomerate, or more loosely paniculate : disk commonly 

 lobed : drupes viscid-pubescent : erect slirubs. 



++ Evergreen, with rigid coriaceous pinnate leaves, wingless rhachis, rather open paniculate 

 inflorescence, and white or rose-colored barely polygamous flowers. 



R. virens, Lindh. Shrub, 4 to 12 feet high, glabrous or mostly young parts soft-puberulent : 

 leaflets 3 to 9, ovate or oblong, inch or more long, entire, shining above, slightlv petiolulate : 

 panicles mostly shorter than the leaves : drupes 4 or 5 lines in diameter. — Limlh. in Gray 

 PI. Lindh. pt. 2, 1.59 (Jan. 1850) ; Gray, pi. Wright, i. 31, ii. 27. R. semper virens, Scheele] 

 Linniea, xxiii. 556 (18501); Engler, I.e. 390, excl. var. — W. & S. Texas (first coll. by 

 Berlandier) to S. Arizona; fl. autumn, or also in summer. (Mex., first coll. by Th. 

 Coulter.) 



** ++ Evergreen, with very rigid coriaceous and mostly simple leaves, more glomerate 

 and bracteate inflorescence, and rose-colored or white polygamous flowers. — Stijphonia, 

 Nutt. in Torr. & Gray, Fl. i. 220. 



R. integrifolia, Benth. & Hook. Shrub, 2 to 6 feet high, or southward a small tree, very 

 leafy : leaves oval, very obtuse at both ends or acutish at base, entire or variably spinulose- 

 denticulate, inch or two long, dark green and shining above, and with transverse veins in 

 dry state prominulous, short-petioled, occasionally a longer petiole bearing 3 similar leaflets, 

 the lateral ones sessile and smaller : inflorescence and young parts cinereous or canescently 

 pnberulent : bracts and similar but thinner bractlets orbicular : sepals oval-orbicular, thin- 

 chartaceous, and somewhat scarious-margined, glabrous or glabrate, ciliolate : drupes half 

 inch in diameter, very viscid and acid. — Benth. & Hook. ace. to Wats. Cat. PI. Wheeler 

 Rep. 7, & Proc. Am. Acad. xx. 358 (Brew. & Wats, Bot. Calif, i. 110, in part) ; Engler, 1. c. 

 387, in part.i Sft/phonia integrifolia, & S. serrata, Nutt. in Torr. & Gray, Fl, i. 220, & Sylv. 

 iii. 4, 6, t. 62. — Cliffs on the sea-shore, S. California and islands, Los Angeles Co.2 to San 

 Diego, first coll. by Nuttall. Fruit or its excretion used for acidulous drinks. (Lower 

 Calif.) 



R. OVata, Watson. Shrub, more glabrous : leaves larger and more lucid (2 or 3 inches 

 long and petiole half to three fourths inch long), ovate or subcordate, mostly entire and acu- 

 minate or acute : bracts and calyx as in preceding but more glabrate, the latter hardlv 

 at all ciliolate : drupes a third inch in diameter (the viscid acid secretion becoming a 

 sweet manna-like incrustation, Orcutt, W. Am. Scieut. iii. 46). — Proc. Am. Acad. xx. 358, 

 but flowers white and pink, not " pale yellow." R. integrifolia, Engler, 1. c, in part. 5^/- 

 phonia serrata, Torr. Pacif. R. Rep. vii. t. 2 (excl. a separate leaf), & Bot. Mex. Bound. 44, 

 mainly. — Mountains of S. Californa, from Santa Barbara^ to San Diego, and S. W. Ari- 

 zona, probably first coll. by Th. Coulter. (Lower Calif.) 



R. Lentii, Kellogg, Proc. Calif. Acad. Sci. ii. 16, & plate in Hesperian (November, 1859, 

 ace. to Mrs. Curran), reprinted in Bull. Calif. Acad. Sci. i., is an allied species of Cedros Island, 

 witli very large fruit. R. Hindsiana, Engler, 1. c. 388, can hardly be the same if it has ovate 

 acute bracts and leaves less obtuse at base. 



++ -K- ++ Deciduous-leaved shrubs : flowers polygamo-dioecious, in solitary or small-clus- 

 tered spikes or heads which are formed in summer or autumn and develop in spring 

 before the leaves. — § Lohadium, Torr. & Graj^, Fl. i. 219. Lobadium, Raf. Am. Monthly 

 Mag. iv. 357. 



R. Canadensis, Marsh. Shrub with spreading branches, 3 to 7 feet higli, with bark and 

 foliage not unpleasantly scented : leaves membranaceous, 3-foliolate, soft-pubescent when 

 young, commonly glabrate at maturity ; leaflets rhombic-obovate or ovate, the terminal one 

 cuneate-attenuntc at base but sessile or nearly so, sometimes 3-cleft, all coarsely or sinuately 

 toothed or incised, 1 to 3 inches long: flowers honey-yellow: dru]K's as large as peas. — 

 Arb. 129 (1785, and adequately characterizeil). A', aronialica (the pubescent), & R. sua- 



1 Add Sargent, Silv. iii. 27, t. 100. 



2 Nortliwestward to Santa Barbara, Dr. Antisell. 



8 Ahso (ucc. to DranJegeu) upon the Santa Barbara Islands, where inclining to be arboreous. 



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