KEY TO IMPORTANT WOODY PLANTS 1 <S9 



papery-margined; "berries" creamy white 

 to yellowish brown, shining, splitting irregu- 

 larly (often while still on plant), mealy flesh 

 curling back to expose 3-5 smooth, light 

 brown "seeds" ; layering but not forming burls 

 or crown-sprouting, killed by fire; type 

 locality, 7,500 feet elevation, Mesa Co., w . 

 Colo. ' 



pine manzanita (Arctostaphylos parryana 



var. pinetorum). 

 23. Bark smooth; leaves spreading or drooping 

 (never vertical) on leafstalks; "berries" 

 chestnut brown to blackish; "seeds" often 

 fused into a deeply, irregularly lobed body; 

 crown-sprouting after fire, forming burls, 

 sometimes layering after heavy snows; not 

 killed by fire; type locality, ". . . dry rocky 

 ridges in pine woods of middle altitudes in 

 the Sierra Nevada, California." 

 greenleaf manzanita (Arctostaphylos 

 patula). i8 

 15. Leaf margins toothed or lobed. [Alternate 15, p. 178.] 

 24. Leaves broad, oval or elliptic to almost round, egg- 

 shaped or reversely egg-shaped in outline; short- 

 stalked to almost stalkless. 

 25. Dwarf, much-branched shrubs; stems creeping and 

 rooting or trailing and prostrate; branches often 

 with rusty, gland-tipped hairs; leaf margins finely 

 toothed, each tooth ending in gland-tipped hair 

 pointed toward leaf tip; flowers small, white, 

 broadly bell-shaped, single at tips of short, bracted 

 stalks in leaf axils; "berry" (capsule enclosed in 

 fleshy calyx) spicy, juicy, bright red, smooth or with 

 gland-tipped hairs, often hidden under leaves; 

 usually on moist mountain slopes; Cascades, Oreg., 

 Wash.; Blue and Wallowa Mts., ne. Oreg., not 

 reported from se. Wash. 



wintergreens (Gaultheria spp.). 



48 L. R. Abrams (Illustrated Flora of the Pacific States 3: 314. 1951.) and 

 J. E. Adams (.4 Systematic Study of the Genus Arctostaphylos Adans. Elisha 

 Mitchell Sci. Soe. Jour. 56: 1-62. i940.) regard both Arctostaphj/los parryana 

 var. pinetorum (Rollins) Wiesl. & Schreib. (1939) and -4. obtusifolia Piper (1902) 

 as synonyms of .4. patula Greene (1891). However, for the present at least, it 

 seems preferable to keep the nonsprouting pine manzanita separate from the 

 crown-sprouting greenleaf manzanita (.4. patula). Recent Forest Service field 

 studies of large patches of manzanita plants (apparently typical Arctostaphylos 

 obtusifolia) from Black Butte, Oreg., (the type locality of .4. obtusifolia) have 

 proved these plants to be nonsprouting and without burls. Moreover, this 

 material was compared with Cusick's type specimen of A. obtusifolia (in the 

 Herbarium of the University of Oregon at Eugene) and both seemed to be identical 

 with the nonsprouting pine manzanita. If indeed .4. pinetorum Rollins (1937) 

 and .4. obtusifolia Piper (1902) prove to be synonymous, the latter name (having 

 35 years' priority) should stand for both. It would not be surprising if further 

 field studies prove that the crown-sprouting greenleaf maznanita is rare (if present 

 at all) in this Oregon area, and that the correct scientific name of the common 

 nonsprouting manzanita there is A. obtusifolia Piper. 



