28 ERICACEiE. Arctostaphiilo!^. 



* * Evect low shrubs, with mostly clustei'ed short racemes or spikes: flowers only a line or two 

 long: knaves half inch or at most an incli long. 



A. pumila, Nutt. A foot or less high, tomentulose : leaves pale, oblong-obovate, obtuse 

 or retuse, sometimes obscurely mucronulate, entire, short-petioled : fruit unknown. — 

 Trans. Am. Phil. Soe. n. ser. vii. 206; Gray, Bot. Calif. I.e. Daphnidoslaphi/lis pumila, 

 Klotzsch, 1. e. — ^lonterey, California, Nuttall, Rich, ^^ot yet met with by recent col- 

 lect(_)rs. 



A. Hookeri, Don. A foot or two high, diffuse, pubcrulent or glabrato : leaves green, 

 ovale or oval, cuspiilately miicronate or acuminate, sometimes spinulose-dcntieulate, slen- 

 der-petioled ; fruit glabrous, 2 lines in diameter, reddish. — Syst. iii. 836. Arbutus puncfens, 

 Hook. & Arn. Bot. Beech. 144. Andromeda? venulosa, DC. Prodr. vii. 607. Xerobutrijs 

 vemdosus & Arclust(ip/ii//os ucuhi? Nutt. in Trans. Amer. Phil. Soc. 1. c. J. ;«<»r/r;i,s, partly. 

 Gray, Bot. Calif, i. 45o, into which it tnay pass. But the smaller forms seem quite distinct, 

 and the drupes are very small. — Monterey, &c., California. 



A. nummularia, Gray. A foot or two high, nearly glabrous, excepting scattered setose 

 bristles on the branches and short petioles, very leafy : leaves mostly broadly oval with 

 both ends rounded or the base slightly cordate, usually entire, bright green : fruit unknown. 

 — Proc. Am. Acad. vii. ZQQ, & Bot. Calif. 1. c. — Mendocino plains, California, Dolauder. 



* * * Erect shrubs or low trees, with short clustered racemes : flowers 3 or 4 lines long and drupes 

 4 or 5 lines in diameter, yellowisli turning reddisli: lea\-es 1 to 3 inclies long. 



A. Andersonii, Gray. Long and spreading bristles copious on the branchlets, &c. (along 

 with fine pubescence) : leaves tiiin, briglit green, glabrous, lanceolate-oblong to ovate-lan- 

 ceolate, with a sagittate or cordate base, sessile or very short-petioled, conspicuously 

 spinulose-serrulate or rarely entire : drupes depressed, densely clothed with exceedingly 

 viscid-tipped bristles. — Proc. Am. Acad. xi. 83, & Bot. Calif. 1. c. — Santa Cruz, California, 

 under Kedwoods, Anderson. 

 A. tonientosa, Dougl. Tomcntose or pubescent when young, and the branchlets, &c., 

 usually bristly: leaves pale, coriaceous, oblong-lanceolate to ovate, entire or sparingly 

 spinulose-serrulate, petioled ; the baseacutisii, rounded or subcordate : ovary hirsute : drupes 

 minutely puberulent or becoming glabrous. (Runs into endless forms, of vviiich one has 

 narrow-oblong apd rather small leaves, acutish at base, apparently connec^ting with the 

 next species.) — Lindl. Bot. Reg. t. 1791. A. cordifolia, Lindl. 1. c. Arbutus tomentosa, Pursh. 

 El. i. 282; Hook. PI. ii. 36, t. 130, & Bot. Mag. t. .3320. Andromeda? bracteosa, DC. Prodr. 

 vii. 607. Xerobotrijs tomenfosus, cordifblius, &■ an/utus, Nutt. in Trans. Am. Phil. Soc. u. ser. 

 viii. 268. — Dry hills, from Puget Soimd to San Diego Co., California, and Arizona. The 

 berries are used in California in iufusiou for a subacid drink. Nutlets 8 to 10, either all 

 separate or some united in pairs. 

 A. pungens, HBK. Glabrous or minutely tomentose-pubescent, 3 to 20 feet high : leaves 

 thick and rigid, green or glaucescent, oblong-lanceolate to round-ovate, commoidy mucro- 

 nate-cuspidate, entire, obtuse or rounded at base, slender-petioled : pedicels glabrous : 

 drupes smooth and glabrous: nutlets thick-walled, carinate or thickened on the back, 

 sometimes firmly coalcscent. — Nov. Gen. & Spec. iii. 278, t. 259; Hook. Bot. Mag. t. 2937; 

 Lindl. Bot. Reg. xxx. t. 17 ; Torr. in Emory Rep. t. 7 ; Gray, Bot. Calif, i. 453, in part. 

 Da/ihiiidosl(ip/ii//is pinnjrns, Klotzsch, 1. c. — Arizona and S. Utah to California. (Mex.) 



Var. platyphylla, the commoner M,\nz.\nita in California, especially northward, 

 reaching Oregon, Nevada, and Utah : leaves y)ale or glaucescent, oblong to orbicular, 1 to 2 

 inches long, commonly muticous. — Ardostdp/iij/os (jiuuca, Watson, Bot. King, 210, &c., not 

 Lindl. A. pumjens, Gray, 1. c, partly'. 



§ 3. Xylococcus. Leaves coriaceous and evergreen, entire : drnpe not warty, 

 ovoid-globose, with a thin pulp and a thick completely solid woody or bony 1-6- 

 celled putamen. — Xylococcus., Nutt. 1. c. vii. 258. 



A. glauca, Lindl. Erect, 8 to 24 feet high, wholly glabrous except the glandular-pubes- 

 cent slender pedicels : leaves, &c., as of A. pumjens, var. j)lati/phi//la, or paler : drupes half an 

 inch or more in diameter, minutely glandular, sometimes viscid, with a thin flesh around 

 the solid mucronate-apiculate stone : seeds and cells 4 to 6, or by abortion fewer, very 

 small in proportion to the size of the putamen. — Bot. Reg., under 1791 ; Gray, Bot. Calif, 

 i. 454 — California, commoner from Monterey southward. Plxccpt by the larger and solid 

 drupe hardly distinguishable from the common glaucous variety of A. pungens. 



