170 MISC. PUBLICATION 401, U. S. DEPT. OF AGRICULTURE 



Dnrrell, L. W., and Newsom, I. E. Colorado's poisonous and injurious plants. 

 Bui. Colorado Expt. Sta. 455. 71 p. 92 fig. 1930. 



Annotated list, alphabetically arranged by vernacular names. 



Ramaley, Francis. Colorado plant life, viii, 299 p. illus., 10 pi. (3 col.). 

 23.5 cm. Boulder, 1927. (University of Colorado semicentennial series, v. 2.) 



General popular account of life zones, associations, etc. ; no list of species ; 

 bibliography. 



European plants growing without cultivation in Colorado. Annales 



Jard. Bot. Buitenz. Suppl. 3 (2) : 493-504. 1 fig. (map). 1910. 



Topography, climate, sources of introduction ; annotated list of 95 angio- 

 sperms ; local distribution, etc. 



Rydberg, P. A. Flora of Colorado. Bui. Colorado Agr. Expt. Sta. 100. xxii, 

 448 p. 1906. 



Keys to the orders, families, genera, and species of vascular plants (2,912 

 species) ; general range, altitudinal range, and Colorado localities given. 



Local 



Ashton, R. E. Plants of Rocky Mountain National Park, iv, 157 p. illus., 

 col. pi., fold. tab. 23 cm. Washington, 1933. 



A popular flora, with partial keys, but including all the species (about 700) 

 of vascular plants known to occur in the Park ; bibliography. Published by 

 the National Park Service. (North central Colorado, northwest of Boulder, in 

 Larimer, Grand, and Boulder Counties.) 



Cockerell, T. T>. A. The alpine flora of Colorado. Amer. Nat. 40: 861-873. 

 1906. 



Lists of species classified by geographical and altitudinal range, based on 

 Rydberg's Flora of Colorado. 



Daniels, E. P. The flora of Boulder, Colorado, and vicinity. Univ. Missouri 

 Studies Sci. Ser. v. 2, no. 2. 311 p. 1911. 



Physiography, plant zones, bibliographies ; annotated list of 1,225 vascular 

 plants. — See also Cockerell, T. D. A. Notes on the flora of Boulder County, 

 Colorado. Torreya 8: 177-183. 1918. (Covers Boulder County.) 



Eastwood, Alice. A popular flora of Denver, Colorado. 57 p. 23 cm. San 

 Francisco, [1893]. 



Annotated list of 487 vascular plants. (Denver County.) 



Holm, Theodor. The vegetation of the alpine region of the Rocky Mountains 

 in Colorado. Mem. Natl. Acad. Sci. v. 19, no. 3. 45 p. 7 pi. 1923. 



Annotated list of about 170 plants collected by the author; phytogeography, 

 morphology. 



Ramaley, Francis. Botany of the San Luis Valley in Colorado, I. Univ. 

 Colorado Studies 17: 27-44. 4 fig. (inch maps), 2 pi. 1929. 



Geography, soils, climate, history, etc. ; unannotated list of vascular plants ; 

 vegetation of sand dunes and sand hills; bibliography. (Saguache County.) 



Vascular plants of the Tolland region in Colorado. Univ. Colorado 



Studies 12: 27-51. 1917. 



List of 722 vascular plants, annotated by symbols. Tolland is in Boulder 

 Park, in Gilpin County, at 8,889 feet elevation. 



Woody plants of Boulder County. His The silva of Colorado III. 



Univ. Colorado Studies 5:47-63. 2 fig. (incl. map). 1907. 



Botanical explorations, economic plants, geography, plant zones ; annotated list 

 of 112 woody plants. 



Schmoll, H. M. Vegetation of the Chimney Rock area, Pagosa-Piedra region, 

 Colorado . . . iii, 58 p. 5 fig. (incl. map). Chicago, 1935. (Dissertation — 

 Chicago.) 



Mainly ecological; includes tabular list of cellular and vascular plants, with 

 indication of their plant association ; bibliography. The Chimney Rock area is 

 in Archuleta County. (Processed publication.) 



Soth, Blanche. List of plants collected above timber line on Pikes Peak, with 

 altitudinal extensions and notes. Bui. Torrey Club 38: 237-242. 1911. 



Alphabetical list of 157 spermatophytes, with list of altitudes for some of 

 these; notes on various species. (On boundary line between Teller and El Paso 

 Counties.) 



