430 SUMMARY OF CURRENT RESEARCHES RELATING TO 



The mature type of structure is not determined at an early stage in the 

 growth of the leaf. The amount of illumination is probably not the only 

 factor which determines the leaf -structure. 



Burnham, S. H. — Ferns of Ann Arbor, Michigan. 



Fern Bulletin, xii. (1904) pp. 50-1. 



Bkitton, E. G. — The Jenman collection of Ferns. 



[Note on the collection of ferns of the late G. S. Jenman, acquired by the 

 New York Bot. Garden, with a biography of the collector.] 



Joum. New York Bot. Garden, iv. (1903) pp. 85-6. 



•Cltjte, W. N. — New or rare ferns from the South-west. 

 [Three species added to the United States Flora.] 



Fern Bulletin, xii. (1904) pp. 43-5. 

 Curtiss, A. H. — The Fern flora of Florida. 



[A list of 74 species and some varieties, with notes on the conditions of 

 growth offered by Florida.] Tom. cit., pp. 33-8. 



Davenport, G. E. — Miscellaneous notes on New England Ferns. VI. 



lthodora, vi. (1904) pp. 31-3. 



De Toni, G. B.. & H. Christ — La Pteris longifolia L.presso il lago Lario? Nota. 



(Xote ou occurrence of Pteris longifolia near Lake Lario.) 



Atli B. 1st. Veneto, lxii. (1903) pp. 561-5. 

 Duss— Les Lycopodes des Antilles Francaises. (The Lycopodiums of the French 



Antilles.) Lons le-Saunier, 8vo, 1903. 



Eaton, A. A. — The genus Equisetumin North America. 

 [E. variegatum and E. scirpoides. Continuation.] 



Fern Bulletin, xii. (1904) pp. 39-43. 



„ ., A preliminary list of Pteridophyta collected in Dade County, Florida, 

 during November and December, 1903. 



[A list of 37 species, with notes.] Tom. cit., pp. 45-8. 



Fischer, H. — Die Fame im Hohen Venn. (Ferns of the Hohe Venn.) 



Sitz. Niederrhein. Ges. Bonn, 1904, p. 73. 



Gillot, X., et Durafotjr — Repartition topographique de la fougere Pteris 

 aquilina L. dans la vallee de la Valserine. (Distribution of the fern Pteris 

 aquilina L. in the valley of the Valserine. 



Bull. Soc. Nat. de VAin, 1904, pp. 8-22. 



Holm, T. — Linnaeus' work on Ferns. Torreya, iii. (1903) pp. 187-8. 



Kalbfleisch, A. S. — Polystichum acrostichoides and some insects that infest it. 



Fern Bulletin, xii. (1904) pp. 48-50. 



Lamic — Une plant rare de la flore francaise. (A rare plant of the French flora.) 

 [Eymenopli yllum tunbridgense.'] 



Soc. Eist. Nat. Toulouse, xxxvii. (1904) pp. 28-9. 



Schmidt, J. — Die Pteridophyten Holsteins in ihren Formen und Missbildungen. 

 (The Pteridophyta of Holstein, their normal and monstrous forms.) 



Hamburg, 1903, Svo, 75 pp. 

 Trelease, W. — The Ferns and Fern Allies of Alaska. 

 [List of 54 species and 16 varieties.] 



Harriman Alaska Ezped., v. (1904) pp. 373-98 (1 pi. and 1 fig.). 



Trabut — Sur la presence de l'Isoetes setacea Bose en Portugal. (On the presence 

 of Isoetes setacea in Portugal.) Bull. Soc. Bot. de France, li. (1904) p. 28. 



Underwood, L. M. — Four recently described Ferns from Jamaica. 



Bull. Dep. Agric. Jamaica, i. (1903) p. 136-8. 



„ „ Account by L. M. Underwood of explorations in Jamaica. 



[Account of a fern-collecting expedition. 400 species were collected.] 



Joum. New York Bot. Gard., iv. (1903) pp. 109-19. 



