62 INDEX TO AMERICAN BOTANICAL LITERATURE 
Bitter, G. Uber verschiedene Varietiten . der Polylepis australis. 
Repert. Sp. Nov. 12: 477-479. 1N 1913. 
Includes new varieties from Argentina. 
Blake, S.F. Six weeks’ botanizing in Vermont—I. Notes on the plants. 
of the Burlington region. Rhodora 15: 154-168. 1 S 1913.—Il. 
Additional notes on plants near Burlington. Rhodora 15: 200, 201. 
17 N 1913. 
Blanchard, F. N. Two new species of Stigonema. Rhodora 15: 
192-200. pl. 105. 17 N 1913. 
Stigonema anomalum and S. medium, spp. nov. 
Brannon, M. A. Osmotic pressure in potatoes. Bot. Gaz. 56: 433- 
438. f. I-¢@: 15 N 1913. 
Brown, C. S. The petrified forest of Mississippi. Pop. Sci. Mo. 83: 
466-470. f. 1-5. N 1913. 
Chamberlain, E. B. Edward Lyman Morris. Bull. Torrey Club 40: 
599-603. portrait. 24 N 1913. 
Chapman, G. H. “ Mosaic” and allied diseases, with especial ref- 
erence to tobacco and tomatoes. Ann. Rep. Massachusetts Agr. 
Exp. Sta. 2§: 41-51. Ja 1913. 
Christensen, C. Polypodium speluncae L. A question of nomen- 
clature. Am. Fern Jour. 3: 1-4. 22 Mr 1913. : 
Cockerell, T. D. A. Some plants of New Mexico. Proc. Biol. Soc. 
Washington 26: 203, 204. 23 O 1913. 
Includes Oenothera Hookeri Hewetti subsp. nov. 
Cosens, A. The haunts of some of our native ferns. Ottawa Nat. 27: 
93-100. N 1913. 
Coville, F. V. Diatom collection of the United States National Mu- 
seum. Science II. 38: 748, 749. 21 N 1913. 
Criddle, N. An unusual colored Rudbeckia. Ottawa Nat. 27: 100. 
N 1913. 
Daniels, F. P. The flora of Boulder, Colorado, and vicinity. Univ. 
Missouri Stud. Sci. Series 2: i-xiii+1-311. O 1911. 
Derby, O. A. Observations on the stem structure of Psaronius bra- 
siliensis. Am. Jour. Sci. IV. 36: 489-497. f. 1-3. N 1913. 
Fernald, M. L. A new station for Scirpus Longii. Rhodora 15: 202- 
17 N 1913. 
Fraser, W. P. The rusts of Nova Scotia. Proc. and Trans. Nova 
Scotian Inst. Sci. 12: 313-445. 30 Au 1913. [lIllust.] 
Freeman, G. F. The tepary, a new cultivated legume from the south- 
west. Bot. Gaz. 56: 395-417. f. 1-17. 15 N 1913. 
