114 



American Midland Naturalist Monograph No. 4 



1. Baldhip Rose (Rosa gymno- 

 carpa Nutt.), fig. 50. — Erect shrub 

 up to 9 feet high; flowering branches 

 often unarmed, otherwise the stems 

 armed with weak slender straight 

 prickles and finer bristles; leaflets 5 

 to 9, broadly to narrowly elliptic, 

 I/4 to 1 inch long, smooth on both 

 sides, usually double-toothed with 

 gland-tipped teeth; flowers rose-pink, 

 about I14 inches across, usually 

 borne singly, the flower-stalks smooth 

 or glandular-hairy; fruits oblong or 

 pear-shaped, orange-red, naked, the 

 sepals falling together with the disc 

 at top of fruit. 



Occurrence. — OLYMPIC, common at 

 lower elevations: Elkhorn Guard Station, 

 Elwha River, 1,374 feet. MOUNT RAINIER, 

 common up to 5,000 feet: Nisqually Val- 

 ley. CRATER LAKE: southwest corner of 

 park; Annie Creek. YOSEMITE, occasional, 

 up to 5,500 feet: Pohono trail; Tenaya 

 Lake trail ; Mariposa Grove. SEQUOIA, 



occasional in lower parts of park. GLACIER, occasional on west slope at low elevations: 



Lake McDonald; Belton. 



Fig. 50. Baldhip rose {Rosa 

 gymnocarpa) . 



2. PiNEYWOODS Rose (Rosa pinetorum Hel.). — Erect shrub 1 to 3 feet 

 high, the stems armed with long straight prickles, often densely so; leaflets 

 5 to 7, oval to reverse-egg-shaped, 1/3 to 1 inch long, finely glandular-hairy, 

 at least below, glandular-toothed; 

 flowers usually solitary, 1^4 to 2 

 inches across, the flower-stalks smooth 

 or glandular-bristly; fruits usually 

 globose, smooth, about y2 inch thick. 

 (Syn. R. Dudleyl Rydb.). 



Occurrence. — YOSEMITE : Mariposa 

 Grove; Yosemite Valley; Mount Con- 

 ness; Miguel Meadow, sequoia : Middle 

 Fork Kaweah River, 6,500 feet. 



3. Meadow Rose (Rosa blanda 

 Ait.), fig. 51. — Erect shrub 2 to 6 

 feet high with slender unarmed stems 

 or with few scattered bristles; leaf- 

 lets 5 to 7, thinnish, oval or reverse- 

 egg-shaped to oblong-lance-shaped, 

 with rather coarse teeth, % to 2i/2 

 inches long, smooth and dull green 



Fig. 51. Meadow rose (Rosa blanda). 



