56 Index to Recent Literature 



Collins, G. N. An ornamental Species of Bidens. Plant World, 3 : 

 161-163.//. <5, 7. N. 1900. 



Bidens heterophylla. 



Coulter, J. M. & Rose, J. N. Monograph of the North American 

 Umbelliferae. Contr. U. S. Nat. Herb. 7: 1-256, i-vii. pL 1-9. 

 f. 1-65. 31 D. 1900. 



New species in Hydrocotyle, Bowlesia, Sanicnla, Eryngium (5), Chaerophyllum, 



Washingtonia (4), Drudeophytum n. g. , Ammoselinu?n, Cicuta, Aletes (4), Ligusti- 



cum (7), Coelopleurum, Oreoxis, Phellopterus, Pteryxia, Aulospermum n. g. (2), Rhy~ 



sopterus n. g. (2), Pseudocymopterus, Oxypolis, Leptotaenia (2), Lomatium (7), Eu- 



ryptera, Cynomarathrum (2). 



Coulter, S. Some unrecognized Forms of native Trees. Proc. Indiana 

 Acad. Sci. 1899: 112— 116. 1900. 



Coulter, S. Contributions to the Flora of Indiana. VI. Proc. In- 

 diana Acad. Sci. 1899: 104-112. 1900. 



Dorner, H. B. The resin Ducts and strengthening Cells of Abies and 

 Picea. Proc. Indiana Acad. Sci. 1899 : 116-129. 1900. [Illust] 



Driggs, A. W. Notes on the Flora of Connecticut. Hartford, Litch- 

 field and Tolland counties. 4 pp. Hartford. 1 Ja. 1901. 



Eaton, A. A, The genus Isoetes in New England. Fernwort Papers, 

 1— 16. 20 D. 1900. 



/. heterospora, I. hierogh phica, I. Harveyi, and /. Grave sit sp. nov. 



Ellis, J. B. & Everhart, B. M. The North American Phyllostictas 



with Descriptions of the Species published up to August, 1900. J-79- 

 Vineland, N. J. D. 1900. 



Includes P. erratica, P. Fraserae, P. minor, P. decipiens, P. acanthospermi, P- 

 consimilis, P. nymphaeacea, P. pollens, and P. fusispora, new species. 



Fernald, M. L. The Representatives of Sa'rpus maritimus in America. 

 Rhodora, 2 : 239-241. D. 1900. 



S. rvbnstus palitdosns and 5. robustus campestris, new combinations. 



Fernald, M. L. Two northeastern Thalictrums. Rhodora, 2 : 230^ 

 2 33- pl* 2I - D- 1900. 



Thalictrum confine sp. nov. 



Gilbert, B. D. Athyrium as a genus. Fernwort Papers, 25-29. 20 



D. 1 



900 



(?). Proc. Indiana 



Golden, K. E. Saccharomyces anomalus Hansen 

 Acad. Sci. 1899 : 141-144- 1900. [Illust.] 



Golden, K. E. A proteolytic Enzyme of Yeast. Proc. Indiana Acad. 

 Sci. 1899: 129-140. 1900. [Illust.] 



