•°>60 Index to American botanical literature 



Hackel, E. Gramineae novae. Repert. Nov. Sp. 2: 69-72. 1 Mr 

 1906. 



Includes new South American species in AgrosUs and Festuca. 



Hamaker, J. I. A culture medium for the zygospores of Mucor 

 stolonifer. Science II. 23: 710. 4 My 1906. 



Harper, R. M. A December ramble in Tuscaloosa County, Alabama. 

 Plant World 9: 102, 104-107. My 1906. 



Harper, R. M. A peculiar hygroscopic movement of the capsules of 



* 



Kneiffia. Plant World 8 : 301-303. /. 5p. [Ja 1906.] 



Hayek, A. von. Verbenaceae novae herbarii vindobonensis. I, Re- 

 pert. Nov. Sp. 2 : 86-88. 25 Mr 1906 ; — II. Repert. Nov. Sp. 2 : 

 1 61-164. 15 My 1906. 



Includes descriptions of new American species in Lippia (4), Duranta (2), and 

 Lantana (7). 



Haynes, C. C. Cephalozia Francisci (Hook.) Dumort. Bryologist 

 9 : 5, 6. /. 1-3. 2 Ja 1906. 



Hazen, T. E. Dryopteris Filix-mas in Vermont. Fern Bull. 14: 25, 

 26. [Mr] 1906. 



Hill, E. J. Encalypta procera — a correction. Bryologist 9: 32. 

 3 Mr 1906. 



Hitchcock, A. S. Twigs of woody plants. Plant World 9: 1-7. 

 /. i-tj. [F] 1906. 



Hollick, A. & Jeffrey, E. C. Affinities of certain Cretaceous plant 

 remains commonly referred to the genera Dcunmara and Brachyphyl- 

 lum. Am. Nat. 40: 189-214. //. 7-5. 22 Mr 1906. 



Holzinger, J. M. Grimmia glaum — a new species or a hybrid. 

 Bryologist 9 : 29-31. 3 Mr 1906. [Illust.] 



House, H. D. Studies in the North American Convolvulaceae. I. 

 Bull. Torrey Club 33 : 313-318. 13 Je 1906. 



Includes descriptions of new species in Jacqtiemontia, Cressa, and Evolvulus (4)- 



Howe, R. H. Ramalina rigida on the Rhode Island coast. Bryologist 

 9 : 32. 3 Mr 1906. 



Humphrey, H. B. The development of Fossomlwriia longiseta Aust. 

 Ann. Bot. 20: 83-108. pL 5, 6 +f. 1-8. Ja 1906. 



Jeffrey, E. C. Morphology and phylogeny. Science II. 23: 291- 

 297. 23 F 1906. 



Jennings, 0. E. Additions to the flora of Cedar Point, II. Ohio 



Nat. 6: 544, 545. 5 Je 1906. 



