404 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



2. Upper section of the style short-pubescent near the base or glabrate, the 



lower section glandular-puberulent 2. G. macro phyllum. 



1. Stems subscapose, all of their leaves greatly reduced; basal leaves with many 

 divisions, the terminal one not much larger than the other upper ones; 

 styles not conspicuously geniculate, straight or somewhat curved toward 

 the apex, the upper section persistent or tardily deciduous, glabrous (3). 



3. Styles not greatly elongate in fruit, glabrous; hypanthium turbinate, acute 



at base; plant not conspicuously pubescent 3. G. turbinatum. 



3. Styles greatly elongate in fruit, plumose below the short terminal section; 

 hypanthium not turbinate, broad, rounded, and more or less depressed 

 at base; plant conspicuously hirsute; leaflets cuneate, few-toothed or 

 cleft 4. G. CILIA TUM. 



1. Geum strictum Ait., Hort. Kew. 2: 217. 1789. 



Coconino and Yavapai Counties, 5,300 to 7,000 feet, rich soil of 

 pine forests, July and August. Widely distributed in the cooler 

 parts of the Northern Hemisphere. 



The Arizona specimens belong to var. decurrens (Rydb.) Kearney 

 and Peebles (G. decurrens Rydb.), the common form of the Rocky 

 Mountain region, with the upper leaf segments more or less decurrent 

 on the rachis. 



2. Geum macrophyllum Willd., Enum. PL 557. 1809. 



Geum oregonense (Scheutz) Rydb., Torrey Bot. Club Bui. 25: 

 56. 1898. 



White Mountains, Apache County (Goodding 530, Kearney and 

 Peebles 12389), Pinaleno Mountains, Graham County (Peebles et al. 

 4452), about 9,000 feet, rich soil along streams, July and August. 

 Throughout most of the cooler part of North America. 



3. Geum turbinatum Rydb., Torrey Bot. Club Bui. 24: 91. 1897. 



Acomastylis turbinata Greene, Leaflets 1: 174. 1906. 



San Francisco Peaks (Coconino County), 10,000 to 12,000 feet, 

 July to September. Montana to New Mexico, northern Arizona, and 

 Nevada. 



4. Geum ciliatum Pursh, Fl. Amer. Sept, 352. 1814. 



Sieversia ciliata G. Don, Hist. Dichl. PL 2: 528. 1832. 



Apache, Navajo, Coconino, and northern Gila Counties, 6,000 to 

 9,000 feet, pine forests, May to August. Alberta and British Colum- 

 bia, south to New Mexico, Arizona, and Washington. 



Oldman-whiskers, grandfathers-beard. An attractive plant with 

 pink flowers and silvery-plumose tails to the fruits, said to make good 

 forage for sheep. The Arizona form is var. griseum (Greene) Kearney 

 and Peebles (Erythrocoma grisea Greene, Sieversia grisea Rydb.) with 

 shorter bracts and less deeply incised leaflets than in most specimens 

 of G. ciliatum from farther north. The type of E. grisea was col- 

 lected on the San Francisco Peaks, Coconino County (Leiberg 5578). 

 E. L. Greene described also Erythrocoma arizonica and E. tridentata, 

 both based on Arizona types, but these seem not to differ appreciably 

 from E. grisea. 



14. FALLUGIA. Apache-plume 



Plant a much-branched, somewhat straggling shrub, 1 to 2 m. 

 high; branches slender, with white bark; leaves more or less evergreen, 

 fascicled, obovate-cuneate, pinnately cleft or divided; flowers large, 



