HEATH FAMILY 



309 



3693 



3694 



3693. 

 3694, 



3696 



Xylococcus bicolor 

 Arctostaphylos Nummularia 



3697 



3695. Arctostaphylos myrtifolia 



3696. Arctostaphylos nissenana 



3698 



3697. Arctostaphylos Uva-ursi 



3698. Arctostaphylos nevadensis 



cinereous-tomentose. Leaves alternate, horizontal, elliptic to oblong, acutely narrowed at both 

 ends, usually strongly revolute, dark green and glabrous above, densely cinereous-tomentose 

 beneath, short-petioled ; flowers in short dense simple or few-branched racemes, with the rachis, 

 bracts and calyx-lobes tomentose; corolla 8-9 mm. long, white or pink; ovary pubescent; fruit 

 globose, 5-7 mm. in diameter, becoming smooth and polished; stone solid and smooth. 



Dry hillsides and mesas, Upper Sonoran Zone; Verdugo Hills, Los Angeles County, Catalina Island, and 

 western San Diego County, California, to northern Lower California. Type locality: San Diego, California. 

 Dec.-Feb. 



15. ARCTOSTAPHYLOS Adans. Fam. PI. 2: 165. 1763. 



Woody evergreen plants, varying from lov/ spreading shrubs to small trees, with 

 exfoliating bark usually leaving the trunks and older branches polished and red-brown. 

 Leaves alternate, coriaceous, persistent, petioled or sessile, often similar on both sur- 

 faces and vertical by a tvt'ist of the petiole. Flowers in terminal racemes or panicles, 

 small, nodding on slender pedicels bracteolate at the base and borne in the axils of per- 

 sistent or deciduous bracts. Calyx persistent, 5-parted, the lobes oblong to orbicular. 

 Corolla urceolate to oblong-campanulate, white or tinged with pink, 5-lobed, the lobes 

 short, rounded, recurved, imbricate in the bud. Stamens 10, included; filaments dilated 

 and usually hairy at the base; anthers with 2 dorsal awns, opening by terminal pores. 

 Ovary 4-10-celled, seated on a 10-lobed disk; ovules solitary in the cavities; style slen- 

 der. Drupe with 4-10 seed-like nutlets, irregularly separable or united into a solid stone; 

 pericarp thin or often with a granular pulp. [Name Greek, meaning bear and berry. The 



