48 EEICACEAE 



arising from a pubescence or indument witli tlie leaves glabrous or merely puberulent, not tomen- 

 tulose beneath, represent var. bracteosa Jepson (A. braeteosa Abrams). — Vicinity of Monterey: 

 Del Monte Heights, Jepson 5701 ; Laguna Seea, Cooper 272. Between the typical form of A. 

 tomentosa and the form A. tomentosa var. bracteosa there appear to be intermediates (Monterey, 

 Jepson 2991 ; w. of the to\\-n, Jepson 5706). Shrubs having branehlets merely puberulent without 

 bristly hairs and with glabrate leaves are A. braeteosa var. hebeclada Eastw. of Monterey. Shrubs 

 of the San Diego coast line having branehlets and rachis without spreading hairs and with thick 

 elliptic subglabrous leaves 8 to 12 lines long, represent A. tomentosa var. crassifolia Jepson. 



Eefs. — Arctostaphylos tomentosa Lindl., Bot. Eeg. t. 1791 (1836); Jepson, Man. 749 

 (1925). Arbutus tomentosa Pursh, Fl. 2S2 (1814), type loc. "Northwest Coast," Menzies. Vva- 

 ursi tomentosa Abrams, Bull. N. Y. Bot. Gard. 6:433 (1910), in part. Arctostaphylos vestita 

 Eastw. ; Sargent, Trees and Shrubs, 1 :205, pi. 97 (1905), type loe. Monterey (sandy plain between 

 Hotel Del Monte and the shore), T. Brandegce. Uva-ursi vestita Abrams, N. Am. Fl. 29:98 

 (1914). A. glandulosa var. vestita Jepson, Madroiio 1:86 (1922). Andromeda bracteosa DC. 

 var. hebeclada DC, Prod. 7:607 (1839), type collected by Douglas, doubtless in Cal.; branehlets 

 pubescent, not hirsute ; leaves glabrate. Arctostaphylos bracteosa DC. var. hebeclada Eastw., 

 Lflts. W. Bot. 1:122 (1934). Var. bracteosa Jepson. Andromeda bracteosa DC, Prod. 7:607 

 (1839), type from "Nova California," Douglas (ace. Abrams, Lflts. W. Bot. 1:84), not "Driim- 

 mond," who was never in Cal. Arctostaphylos bracteosa Abrams, Lflts. W. Bot. 1:84 (1934). Var. 

 CKAssirOLiA Jepson, Man. 749 (1925). A. glandulosa var. crassifolia Jepson, Madrono 1:86 

 (1922) type loc. Del Mar, Jepson 1606a. 



20. A. canescens Eastw. Gray Manzanita. Low whitish shrub, 3 to 6 feet 

 high; bark very dark or blackish; branehlets, peduncles and leaves minutely and 

 closely white-pubescent or canescent, the leaves often glabrate in age ; leaf -blades 

 ovate to oblong or elliptic, rounded at apes or obscurely acute, % to 3 inches long; 

 pedicels short-hairy, non-glandular or sometimes slightly glandular, 2 to 4 lines 

 long; bracts lanceolate, small, or the lower sometimes large (3 to 6 lines long); 

 corolla white or pink; ovary woolly; berry depressed-globose, 4 lines broad, faintly 

 pubescent with very short spreading hairs; nutlets distinct, narrow, ridged. 



Dry rocky or clay slopes, 1500 to 4200 feet : Coast Ranges from Del Norte Co. 

 to San Luis Obispo Co. ; south to San Diego Co. Dec-Apr. 



Field note. — No statement is made in the original place of publication of Arctostaphylos 

 canescens (1897) as to stump-sprouting, but the author of the species in 1934 (Lflts. W. Bot. 

 1:134) adds the highly valuable information that the shrubs are destroyed by fire and reproduce 

 by numerous seedlings "which often bloom when only a few inches high." The value of this 

 declaration is very great. Therefore, this very white shrub may in this additional manner be dis- 

 tinguished from Arctostaphylos glandulosa and all its forms, including the form called A. cushing- 

 iana. In the inner and middle North Coast Ranges the leaf-blades are most commonly broad and 

 rounded, with longer petioles than the representation on Mt. Tamalpais. 



Locs.— Eidge betw. Smith Eiver and Elk Creek, Del Norte Co., Tracy 12,069 ; Hupa Mt., Hum- 

 boldt Co., Tracy 7565 ; laqua Buttes, Kneeland Prairie, Tracy 4906 ; Asa Bean Eidge, near Castle 

 Peak, ne. Mendocino Co., Jepson 14,694; Snow Mt., n. Lake Co., M. S. Balcer 3115e; Cobb Mt., 

 sw. Lake Co., Jepson 14,692 ; Mayacamas Eange betw. Blue Lakes and XJkiah, Jepson 14,696 ; 

 Mt. St. Helena, Jepson 14,695 ; Mt. Tamalpais, Jepson 6863 ; Loma Prieta, Santa Cruz Mts., 

 Elmer 4251; Chorro Creek, San Luis Obispo Co., Eastwood; near Live Oak Sprs., sc. San Diego 

 Co., Peirson 7233. 



Eefs. — Aectostaphtlos canescens Eastw., Proc. Cal. Acad. ser. 3, 1:84 (1897), type loc. 

 on trail from Eldridge grade to Larsens (Eidgecrest), betw. "last bunch of cypresses" and Rook 

 Spr., Mt. Tamalpais, Eastwood ; Jepson, Man, 749 (1925). A. campbellae Eastw., Lflts, W, Bot. 

 1:74 (1933), type loc. Mt. Hamilton, Camp6eH. ^. sonomrasis Eastw., I.e. 1:78 (1933), type loc. 

 Eincon Eidge near Santa Eosa, M. S. Balcer 3877c. 



21. A. Columbiana Piper. HAraY Manzanita. Erect shrub, 4 to 8 (or 12) 

 feet high, arising from the ground by a single trunk ; branehlets very leafy ; branch- 

 lets and petioles with two kinds of pubescence, a short fine tomentum and long 

 spreading stifSsh hairs arising amongst it, the long hairs abundant and sometimes 

 shaggy, or few and extremely scanty or scattered, usually not glandular or only 

 slightly so; leaves pubescent or nearly glabrous, green or pale, the blades ovate to 

 narrowly or broadly oblong, acute, obtuse to siibeordate at base, entii-e or rarely 

 spinulose-serrulate, margins and midribs sometimes hirsutulose, 1 to 2i/2 inches 

 long ; bracts linear-lanceolate, the lower or all f oliaceous, 14 to 1 inch long ; pedicels 



