HEATH FAMILY 325 



not at all glandular. Leaves bright green, sparsely tomentulose, oblong to ovate or ovate-lance- 

 olate, acute or obtuse at apex, obtuse to subcordate at base ; panicles ample, the branches to- 

 mentose and setose ; low^r bracts foliaceous, the upper deltoid-accuminate ; pedicels densely 

 hairy ; corolla rose-colored or white, 5-6 mm. long ; ovary densely pubescent ; fruit depressed- 

 globose, becoming nearly glabrous. 



Dry ridges and slopes, Humid Transition and Upper Sonoran Zones; Coast Ranges of California from 

 Contra Costa County to Los Angeles County. Type locality: Kings Mountain, San Mateo County, California. 

 Feb.-April. 



Arctostaphylos Crustacea var. tomentosiformis J. E. Adams, Journ. E. Mitchell Sci. Soc. 56: 54. 1940. 

 {Arctostaphylos tomcntosa var. crinata J. E. Adams ex McMinn, 111. Man. Calif. Shrubs 412, 640. 1939.) Erect 

 shrub, young branchlets densely white-tomentose and setose-bristly. Leaves 2.5-5 cm. long, densely white-tomentose 

 beneath. Dry hillsides and ridges, Ano Nuevo Point, San Mateo County to the pine barrens of Cypress Point, 

 Monterey County, California. Type locality: Bonnie Doon Ridge, Santa Cruz County. 



Arctostaphylos R6sei Eastw. Leaflets West. Bot. 1:77. 1933. {Arctostaphylos Crustacea var. Rosei 

 McMinn, 111. Man. Calif. Shrubs 413, 640. 1939.) Erect shrub, about 1 m. high, young branchlets sparsely 

 tomentose without setose bristles. Leaves oblong to ovate-oblong, thin and leathery, bright green, 4-6 cm. 

 long; lower bracts foliaceous, upper deltoid; pedicels pubescent; fruit depressed-globose, or broadly ovoid, 

 sparsely pubescent. Hillsides bordering Lake Merced, San Francisco; seems to intergrade with A. Crustacea. 



40. Arctostaphylos subcordata Eastw. Santa Cruz Island Manzanita. Fig. 3733. 



Arctostaphylos subcordata Eastw. Leaflets West. Bot. 1: 61. 1933. 



Erect shrub with spreading branches, 1-2 m. high, stems and older branches srnooth reddish 

 brown, young twigs cinereous-tomentose and more or less glandular-villous with spreading 

 hairs. Leaves ovate-elliptic to broadly lanceolate, 2-5 cm. long, 1.5-3 cm. wide, subcordate or 

 sometimes truncate at base, obtuse to acute at apex, glandular-ciliate on the margins, upper 

 surface glabrous or nearly so and shiny with very few or no stomata, lower surface rather thinly 

 tomentulose ; petioles 2-5 mm. long, densely puberulent with a few intermingling longer hairs ; 

 panicles subsessile with 2-3 short densely flowered racemes ; bracts lanceolate, 6-10 mm. long, 

 exceeding the glandular-tomentulose pedicels; corolla 4-5 mm. long; ovary densely canescent; 

 fruit depressed-globose, 6-8 mm. broad, thinly short-pubescent, ridged by the angled nutlets, 

 these separating readily. 



Stony ridges. Upper Sonoran Zone; Santa Cruz Island, southern California. Type locality: near the 

 west end of Santa Cruz Island. Jan.-March. Closely related to Arctostaphylos bracteosa of the mainland. 



Arctostaphylos confertifldra Eastw. Leaflets West. Bot. 1 : 122. 1934. Closely resembling Arctostaphylos 

 subcordata; leaves and twigs glandular-pubescent but generally without tomentum; inflorescence densely 

 glandular-pubescent; bracts less attenuate at apex and more or less recurved-spreading. Plants growing in 

 canyons and on protected slopes erect shrubs, those of wind-swept summits more or less prostrate and often 

 with broader leaves rounded at apex. Santa Rosa Island, southern California. 



41. Arctostaphylos bracteosa (DC.) Abrams. Coast Manzanita. Fig. 3734. 



Andromeda bracteosa DC. Prod. 7:607. 1839. 



Arctostaphylos bracteosa Abrams, Leaflets West. Bot. 1 : 84. 1934. 



Arctostaphylos tomcntosa var. bracteosa Jepson, Fl. Calif. 3: 48. 1939. 



Arctostaphylos tomcntosa subsp. bracetosa ]. E. Adams, Journ. E. Mitchell Sci. Soc. 56: 57. 1940. 



Erect shrub, 1-2 m. high, forming a burl-like base and stump-sprouting after fire, bark of 

 old branches shredded and tardily shedding, young branchlets glandular-villous and often more 

 or less tomentose. Leaves canescent when young, in age glabrate and green at least above, ovate- 

 elliptic, 2.5-4 cm. long, usually subcordate or truncate at base; petioles short; panicles con- 

 gested ; bracts foliaceous, glandular-ciliate ; pedicels shorter than the bracts, glandular-villous ; 

 ovary densely white-pubescent ; fruit depressed-globose, sparsely pubescent. 



Well-drained rocky or sandy soils, Transition and Upper Sonoran Zones; Monterey Peninsula and neighbor- 

 ing mountains near the coast. Type locality: collected by Douglas in California, but definite locality not given; 

 erroneously attributed to Drummond by De Candolle. Feb.-March. 



Arctostaphylos bracteosa var. hebeclada (DC.) Eastw. Leaflets West. Bot. 1: 122. 1934. {Andromeda 

 bractosa (i. hebeclada DC. Prod. 7: 607. 1839.) Very similar to the typical species but with glandular hairs. 

 This variety is somewhat intermediate beween A. bracteosa and A. tomcntosa and occurs on the Monterey 

 Peninsula, often associated with these species suggesting hybrid origin. All of these have very few or no 

 stomata on the upper surface of the leaves. 



42. Arctostaphylos tomcntosa (Pursh) Lindl. Shaggy-barked Manzanita. 



Fig. 3735. 



Arbutus tomcntosa Pursh, FI. Amer. Sept. 282. 1814. 

 Arctostaphylos tomcntosa Lindl. Bot. Reg. 21: pi. 1791. 1836. 

 Arctostaphylos vcstifa Eastw. in Sarg. Trees & Shrubs 1:205. 1905. 

 Uva-ursi vestita Abrams, N. Amer. Fl. 29: 98. 1914. 



An erect divaricately branched shrub, 1-2 m. high, forming a burl at base and stump- 

 sprouting after fire, bark on old trunks brown, shreddy and tardily exfoliating; branchlets to- 

 mentose. Leaves oblong, ovate or elliptic, obtuse or acute and apiculate at the apex, cordate to 

 obtuse at base, 2.5-4 cm. long, thin-coriaceous, green and sparsely tomentulose above, hoary- 

 tomentose below, or rarely the pubescence becoming sparse on both surfaces in age ; branches of 

 the rather congested panicle tomentose; lower bracts foliaceous, 8-12 mm. long, the upper lance- 

 olate-acuminate, 5-7 mm. long, firm and persistent ; pedicels stout, tomentose ; calyx-lobes ciliate 

 on the margins; ovary densely tomentose; fruits light brown, depressed-globose; nutlets irregu- 

 larly coalescent. 



Sandy soils, Upper Sonoran and Humid Transition Zones; near the coast, Monterey County, California. 

 Especially abundant on the Monterey Peninsula, where without doubt the original specimen that has been 

 chosen as the type was collected. Jan.-March. 



