INDEX TO AMERICAN BOTANICAL LITERATURE 101 
Fox, C. P. Ohio grown rubber, crop of 1910. Ohio Nat. 11: 271, 272. 
16 Ja igi. [Illust.] 
Frye, T. C. Height and dominance of the Douglasfir. Forest. Quart. 
8: 465-470. D 1910. 
Gates, F. C. Some effects of protracted drought upon xerophytic 
plants. Plant World 13: 298. D 1910. 
Gleason, H. A. The vegetation of the inland sand deposits of Illinois. 
Bull. Illinois State Lab. Nat. Hist. 9: 1-174. f. 1-6. pl. 1-20. O 1910. 
Greene, E. L. Certain aspects of the species question. Am. Midland 
Naturalist 1: 245-263. 1 D 1910. : 
Griggs, R. F. Phlox stolonifera rediscovered in Ohio. Ohio Nat. 
1X: 261, 262.16 Ja 1911. 
Harper, R. M. Notes on the distribution of some plants observed in 
traveling through the coastal plain from Georgia to New York in 
July, 1909. Bull. Torrey Club 37: 591-603. 11 Ja I9gIT. [Illust.] 
Hasse, H. E. Additions to the lichen-flora of Southern California 
No. 5. Bryologist 14: 2-4. Ja I9g1I. 
Acarospora peltata Hasse, Biatorella terrena Hasse, Caloplaca verrucosa Hasse. 
Hay, G. U. Average opening of flowers. Bull. Nat. Hist. Soc. New 
Brunswick 6: 251-253. I910. 
Heller, A.A. The limber pine. Muhlenbergia 6: 128-132. 31 D 1910. 
Pinus flexilis James. 
Herre, C. Keimfahigkeit des Samens von in Deutschland angepflanzten 
Exoten. Mitteil. Deuts. Dendr. Gesells. 1910: 59-62. 1910. 
Howe, R. H. The genus Usnea and its Linnaean nomenclature. Bull. 
Torrey Club 37: 605-609. 11 Ja 1911. 
Jeffrey, E. C. The affinities of Geinitzia gracillime. Bot. Gaz. 51: 
21-27. pl. 8. 17 Ja 1911. 
Jennings, O. E. Notes on the distribution of certain plants in western 
Pennsylvania. Fern Bull. 18: 99-101. [Ja rort.] 
Johnson, D.S. An opportunity to study the origin and development of 
a tropical forest. Jour. N. Y. Bot. Gard. 11: 273-276. D 1910. 
Kaiser, G. B. Moss and lichen collecting in the Catskills. Bryologist 
94:35 2: 2. T. Je 15th; 
Lutman, B. F. Some contributions to the life history and cytology of 
the smuts. Trans. Wisconsin Acad. Sci. 16: 1191-1244. pl. 85-95. 
O 1910. 
Lyon, G. E. New Jersey forests and forestry. Forest. Quart. 8: 
450-461. D 1910. 
