316 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
1. Sibbaldia procumbens L. Sp. Pl. 284. 1753. 
Tyre Locauity: “ Habitat in alpibus Lapponiae, Helvetiae, Scothiae.”’ 
Rance: Arctic and alpine regions of North America, Asia, and Europe. 
New Mexico: Santa Fe and Las Vegas mountains. Meadows, in the Arctic-Al- 
pine Zone.. 
10. DASIPHORA Raf. SHRUBBY CINQUEFOIL. 
Low branching shrub with pinnately 3 to 7-foliolate silky leaves and scarious 
stipules; young branches silky-villous, the older stems brown, with shredded bark; 
flowers bright yellow, axillary and solitary or in small cymes; hypanthium saucer- 
shaped; bractlets, sepals, and petals 5; petals nearly orbicular; stamens about 25; 
achenes densely villous. 
1. Dasiphora fruticosa (L.) Rydb. Mem. Bot. Columb. Coll. 2: 188. 1898. 
Potentilla fruticosa L. Sp. Pl. 495. 1753. 
Tyre Locauity: ‘‘Habitat in Eboraco, Anglia, Oelandia australi, Sibiria.’’ 
Rance: British America to California, New Mexico, and New Jersey; also in Eu- 
rope and Asia. 
New Mexico: Chama; Catskill; Santa Fe and Las Vegas mountains; Mogollon Moun- 
tains. Damp meadows and along streams, Transition to Arctic-Alpine Zone. 
A densely branched shrub, often becoming a meter high or more. Above timber 
line it is very much stunted and gnarled. When covered with its numerous golden 
yellow flowers it is a handsome plant. 
11. DRYMOCALLIS Fourn. 
Rather coarse herbaceous perennials with scaly rootstocks, pinnate leaves, and 
cymose inflorescence; hypanthium saucer-shaped; bractlets, sepals, and petals 5; 
petals but little exceeding the sepals, whitish or yellow; stamens 20 to 30; pistils very 
numerous. 
KEY TO THE SPECIES. 
Petals white or cream-colored; plants slender, low, 30 cm. high or less... 1. D. conyallaria. 
Petals bright yellow; plants stout, tall, frequently 60 cm. high..... 2. D. glandulosa. 
1. Drymocallis convallaria Rydb. Mem. Bot. Columb. Coll. 2: 193. 1898. 
Potentilla convallaria Rydb. Bull. Torrey Club 24: 249. 1897. 
TYPE Locauity: Near Bozeman, Montana. 
Rance: Montana to New Mexico. 
New Mexico: Santa Fe and Las Vegas mountains; Sierra Grande. Damp woods, in 
the Transition and Canadian zones. 
2. Drymocallis glandulosa (Lindl.) Rydb. Mem. Bot. Columb. Coll. 2: 198. 1898. 
Potentilla glandulosa Lind1. in Edwards’s Bot. Reg. 19: pl. 1583. 1833. 
Type Locauity: ‘‘California.’’ 
RanGeE: British Columbia to South Dakota, California, and New Mexico. 
New Mexico: Ensenada; Johnsons Mesa; Gallinas Canyon; Chama. Wet ground, 
in the Transition Zone. 
12. SIEVERSIA R. Br. 
Low, more or less cespitose, herbaceous perennials with a cluster of twice pinnate 
leaves and a few scapelike stems 50 cm. high or less; flowers in cymose clusters; 
hypanthium turbinate, 5-bracted; sepals 5, ovate-lanceolate, acute; petals 5, yellow 
or purplish; styles not jointed, plumose or appressed-pubescent, sometimes elongating 
in fruit; achenes pubescent. 
KEY TO THE SPECIES, 
Petals purplish; styles in fruit much elongated, plumose........... 1. S. grisea. 
Petals yellow; styles slightly if at all elongated in fruit, appressed- 
pubescent...........-. 2.0220 eeees 2. 8. turbinata. 
