CONTENTS 



BiCKNELL, Eugene P. The ferns and flowering plants of Nan- 

 tucket— IV. 'l 



WiNSLOw, C.-E. A. A statistical criterion for species and genera among 

 the bacteria -- - - - - - - - - -31 



Benedict, Ralph Curtiss. New hybrids in Dryopteris - - - - 41 



ArthvRj J. C.y and others. Propositions relating to the amendment and 

 completion of the International Rules of Botanical Nomenclature 

 adopted by the International Botanical Congress of Vienna in 1905 - 55 



w 



Arthur, J. C, and others. Propositions relatives a Tamendement et au 

 complement des Regies internationales de la Nomenclat ..rebotaniqne, 

 adoptees par le Congres international de Botanique de Vienne en 



1905 ---. .--6s 



Howe, Marshall Avery. Phycological studies — IV. The genus 



Neomeris and notes on other Siphonales (with plates i^) - - 75 

 WooTON, Elmer Ottis, and Standley, Paul Carpenter, Some hitherto 



undescribed plants from New Mexico ----.- 105 

 Moore, Emmeline. The study of w^inter buds with reference to their 



growth and leaf content (with plates 9-1 1)- - - - -117 

 Shear, C. L. The present treatment of monotypic genera of fungi - 147 

 Peck, Charles Horton. New species of fungi - - - - - I53 

 Small, John K, Additions to the flora of Peninsular Florida - - 159 

 Gruenberg, Benjamin C. Some aspects of the mycorhiza problem - 165 

 Darling, Chester Arthur. Sex in dioecious plants (with plates 12-14) 177 



Seaver, Fred J. Notes on North American Hypocreales— II, Nectria 



------ 201 



205 



- Peziza (with plate 15) ------ --- 



Campbell, Douglas Houghton. The embryo-sac of Pandanus (with 

 plates 16 and 17) ---------- 



Stone, George E. The power of growth exhibited by ostrich ferns - 221 

 Latham, Marion E. Nitrogen assimilation of Sterigmatocystis nigra 

 and the effect of chemical stimulation ------ 235 



Berry, Edward W. Contributions to the Mesozoic flora of the Atlantic 



coastal plain— III. New Jersey (with plates iS and i8a) - - 245 

 Gleason, Hekry Allan. Some unsolved problems of the prairies - 265 

 ''CooK, Melville Thurston, Notes on the embryo-sac of Passiflora 



adenophylla (with plate 19) - " ' " * " ' ^ ' ^73 

 Dandeno T B Osmotic theories, with special reference to van*t Hoff's 



283 



law 



Clark, Lois. Some noteworthy Hepaticae from the state of Washing- 

 ton (with plate 20) -----•"''"' 



Howe, R. Heber, Jr. Preliminary notes on the genus Usnea, as repre- 



99 



sented in New England (with plates 21-23) - - - - - 3^9 



111 



