HEATH FAMILY 313 



6. Arctostaphylos pumila Nutt. Dune or Sandmat Manzanita. Fig. 3699. 



Arctostaphylos pumila Nutt. Trans. Amer. Phil. Soc. II. 8: 267. 1843. 

 Daphnidostaphylis pumila Klotzsch, Linnaea 24: 267. 1851. 

 Uva-ursi pumila Abrams, N. Amer. Fl. 29: 100. 1914. 



Spreading shrubs forming mat-like clumps, with the center seldom over 6-10 dm. high, the 

 branches assurgent, bark red-brown, branchlets slightly glandular and canescent with a fine 

 tomentum. Leaves numerous, narrowly obovate to spatulate, rarely elliptic, 1-2 cm. long, 

 rounded to acute and conspicuously mucronate at the apex, dull green above, distmctly paler 

 beneath, tomentose when young and often permanently so on the lower surface ; petioles 2-3 mm. 

 long; flowers in short congested simple or few-branched racemes; bracts lanceolate-acuminate, 

 tomentose, 2-4 mm. long ; pedicels slender, 3 mm. long, glandular-pubescent ; calyx-lobes cihate 

 on the margins; corolla pink, 4 mm. long; ovary pubescent; fruit slightly depressed-globose, 

 light brown, nearly glabrous ; nutlets readily separable, carinate on the back, otherwise smooth. 



Sandy soils, near the coast, mainly Upper Sonoran Zone; Monterey County, California; especially com- 

 mon on the Monterey Peninsula, where it was originally collected by Nuttall. Feb.-Apnl. 



7. Arctostaphylos Hookeri G. Don. Hooker's Manzanita. Fig. 3700. 



Arctostaphylos Hookeri G. Don, Gen. Hist. PI. 3: 836. 1834. 

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



Arctostaphylos acuta Nutt. Trans. Amer. Phil. Soc. II. 8:267. 1843. 

 Daphnidostaphylis Hookeri Klotzch, Linnaea 24: 80. 1851. 



Low spreading mound-like shrub, branching from the base, the outer branches decumbent, 

 the inner 4-12 dm. high, with smooth dark red-brown bark and tomentose branchlets. Leaves 

 ovate to obovate, 1-2.5 cm. long, bright green on both surfaces, or slightly cinereous when 

 young, usually acute, prominently reticulate-veined; petioles slender, 3-5 mm. long; flowers m 

 short subcapitate racemes; rachis and the short triangular bracts tomentose; pedicels 3^ mm. 

 long, glabrous ; corolla usually tinged with pink, 4-5 mm. long ; ovary glabrous ; fruit depressed- 

 globose, about 4 mm. broad; nutlets irregularly coalescent, rounded on the back, ribbed and 

 rugosely roughened. 



Hillsides and open pine woods. Upper Sonoran and Transition Zones; Monterey County, California, from 

 the Pajaro Hills to San Simeon Bay. Common on the Monterey Peninsula. Type locality: Monterey, l-eb.- 

 April. 



8. Arctostaphylos franciscana Eastw. San Francisco Manzanita. Fig. 3701. 



Arctostaphylos franciscana Eastw. Bull. Torrey Club 32: 201. 1905. 

 Uva-ursi franciscana Heller, Cat. N. Amer. PI. ed. 3. 276. 1914. 



Low procumbent shrubs, the prostrate branches rooting, the stems smooth, young twigs mi- 

 nutely puberulent. Leaves bright green, narrowly to broadly elliptic, sharply acute, 1-2 cm. 

 long; racemes simple, 1-2 cm. long; bracts small, triangular or triangular-subulate; pedicels 

 glabrous; corolla white, 6-7 mm. long; fruit depressed-globose, 7 mm. broad, surface dull; 

 stones mostly separable. 



Serpentine outcrops. Humid Transition Zone; San Francisco Peninsula, California. Type locality: San 

 Francisco. Jan.-April. 



9. Arctostaphylos densiflora M. S. Baker. Sonoma Manzanita. Fig. 3702. 



Arctostaphylos densiflora M. S. Baker, Leaflets West. Bot. 1: 31. 1932. 



Low procumbent shrubs, the branches rooting freely, minutely tomentulose on the young 

 branchlets, petioles, base of leaves, rachis of raceme and bracts. Leaves when mature bright 

 green and shiny, broadly elliptic, rounded or acutish at apex, obtuse or cuneate at base, mostly 

 2-3 cm. long; racemes abundant, those terminating the flowering branchlets compound, the 

 lateral ones usually single ; bracts small, triangular-subulate ; pedicels glabrous, slender ; corolla 

 5 mm. long, white or tinged with pink ; fruit depressed-globose, about 6 mm. in diameter, gla- 

 brous. 



Growing on banks, Humid Transition Zone; western Sonoma County, California. Type locality: near 

 Vine Hill Schoolhouse, Sonoma County. March-April. 



10. Arctostaphylos Stanfordiana Parry. Stanford's Manzanita. Fig. 3703. 



Arctostaphylos Stanfordiana Parry, Bull. Calif. Acad. 2: 493. 1887. 

 Uva-ursi Stanfordiana Heller, Muhlenbergia 9: 68. 1913. 



An erect, much-branched shrub, 1-2 m. high, the bark smooth, bright red-brown, the branch- 

 lets slender, glabrous or sometimes puberulent when young. Leaves narrowly ovate to oblance- 

 olate, 2.5-4 cm. long, obtuse to acute and mucronate at the apex, bright green, glabrous and 

 shining ; flowers in loose drooping panicles, the branches of the panicles very slender, glabrous 

 or sparingly puberulent ; bracts subulate, mostly less than 2 mm. long ; corolla usually pink, 5-6 

 mm. long ; ovary glabrous ; fruit yellowish brown, somewhat depressed-globose ; nutlets broader 

 than long, usually 2 or more coalescent. 



Mountain slopes, Upper Sonoran Zone; Coast Ranges, from Mendocino County to Contra Costa County, 

 California. Type locality: mountain slopes in the vicinity of Calistoga, Napa County. Feb.-Apnl. 



Arctostaphylos laeviglita Eastw. Leaflets West. Bot. 1 : 76. 1933. Low intricately branched shrub, old 

 stems smooth dark red-brown, young twigs, petioles and branches of the inflorescence minutely puberulent. 



