252 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Petals broadly obovate, not more than 
8 mm. long; basal leaves not 
cleft, oblong to deltoid-ovate.. 6. R. swbsagitiatus, 
Achenes pubescent. 
Part of the basal leaves undivided; stems 
and leaves with only a few soft and 
inconspicuous hairs, 
Petals 5 to 6 mm. long; head of achenes 
oblong ........... 2.202 eee ee eee 7. R. inamoenus. 
Petals 3 to5 mm. long; head of achenes 
cylindric .............22..00-- 12. R. micropetalus, 
All of the leaves cleft; stems and leaves 
densely hirsute. 
Head of carpels oblong; petals not 
longer than the sepals; plants 
mostly erect........---------- 8. R. pennsylvanicus, 
Head of carpels globose; petals longer 
than the sepals; plants low and 
spreading ...................-- 9. R. macounii. 
1. Ranunculus macauleyi A. Gray, Proc. Amer. Acad. 15: 45. 1880. 
Type LocaLity: Rocky Mountains in San Juan County, Colorado, 
RANGE: Colorado and northern New Mexico. 
New Mexico: Pecos Baldy; Truchas Peak. Meadows, in the Arctic-Alpine Zone. 
A most handsome species with large bright yellow flowers set off by rich brown 
sepals. The plants grow up to the very edge of the snow banks, 
2. Ranunculus hydrocharoides A. Gray, Mem. Amer. Acad. n. ser. 5: 306. 1861. 
TypE LocaLiry: Wet marshes, Mabibi, Sonora. 
Range: Southwestern New Mexico and southern Arizona, 
New Mexico: Cloverdale; Middle Fork of the Gila. In swamps. 
8. Ranunculus purshii Richards. Bot. App. Frankl. Journ. 741. 1823. 
Type LocaLity: ‘‘Wooded country from latitude 54° to 64° north.” 
Rance: Alaska to Nova Scotia, Oregon, and New Mexico. 
New Mexico: Near Fort Defiance (Palmer). 
4. Ranunculus eremogenes Greene, Erythea 4: 121. 1896. 
Ranunculus sceleratus eremogenes Cockerell, Univ. Mo. Stud. Sci. 27: 124. 1911. 
Type Locauity: ‘‘Of wet springy places and margins of pools in the West American 
desert regions, from along the eastern base of the Colorado Rocky Mountains, through 
the Great Basin, and to southeastern Oregon and northeastern British America.”’ 
RanGE: British America to California and New Mexico. 
New Mexico: Gallo Spring; San Juan; Mangas Springs; Wheelers Ranch; Farm- 
ington. In marshes, in the Upper Sonoran Zone. 
5. Ranunculus nudatus Greene, Leaflets 1: 211. 1906. 
TyrE LocaLity: Burro Mountains, New Mexico. Type collected by Metcalfe (no. 
198). 
RanGE: Southwestern New Mexico. 
New Mexico: Burro Mountains; Santa Rita. In wet soil. 
6. Ranunculus subsagittatus (A. Gray) Greene, Pittonia 2: 59. 1890. 
Ranunculus arizonicus subsagittatus A. Gray, Proc. Amer. Acad. 21: 370. 1886. 
Type Locauity: ‘‘North Arizona in De la Vergne Park of the San Francisco Moun- 
tains, in wet ground.”’ 
RanGE: Arizona and New Mexico. 
