718 SUMMAEY OF CUEBENT BESEAECHES RELATING TO 



Clute, W. N.— Species and varieties among the Ferns. 



[Treats of tin unequal value of species, and considers one by 

 one the primary and more constant characters of ferns, 

 namelv, venation, root-stock, position and shape of the 

 fruit-dots, indusium, outline of frond; also the secondary 

 and variable characters, namely, size, colour, texture, 

 vestiture, cutting of the frond.] 



Fern Bulletin, xiii. (1905) pp. 65-74. 



„ The Fern Allies of North America. 



[Contains fresh descriptions and figures of all the species, 

 and keys to the genera and species.] 



New York : The F. A. Stokes Co. (1905) 280 pp., 

 8 coloured plates and 156 figs. 



Eaton, A. A. — Botrychium biternatum Underw. Tom. cit., p. 87. 



Gilbert, B. D— An Index to the Fern Bulletin, Vols. I. to X. (1893-1902). 



[It is divided into the following parts, viz. General Index, 

 Index to Species mentioned, List of Contributors, List 

 of Publications Noticed, and List of Illustrations.] 

 Bingbampton, N.Y. : W. N. Clute & Co., 1904, 32 pp. 



() „ Observations on North American Pteridophytes. 



[Notes on rare or critical ferns.] 



Fern Bulletin, xiii. (1905) pp. 74-77. 

 „ „ Some Mexican Fernworts. 



[List of 14 species from altitudes of 5000 ft. in Oaxaca and 

 near Orizaba, being partlv new records for Mexico.] 



Tom. cit, pp. 79-83. 



Klugh, A. B. — Nephrodium Boottii or Nephrodium spinulosum x cristatum. 



[A question of hybridity.] Tom. cit., p. 86. 



Lidforss, B. — Ueber die Chemotaxis der Equisetum spermatozoiden. (On the 

 chemotaxis of the spermatozoids of Equisetum.) 



[A preliminary notice of the results obtained by the action of malates and 

 other salts."] Ber. Deutsch. Bot. Gesell, xxiii. (1905) pp. 314-16. 



Lyon, F. — Another seed-like characteristic of Selaginella. 



Bot. Gazette, xl. (1905) p. 73. 

 Maxon, W. R. — Adenoderris, a valid genus of Ferns. 

 [Describes a new species from Guatemala.] 



Bot. Gazette, xxxix. (1905) pp. 366-9 (2 figs.). 



Scott, J. F. — The Boston Fern and its Varieties. 



Gardening, June 15, 1905; Fern Bulletin, xiii. (1905) p. 91. 



Terry, E. H. — More about the Ferns of Dorset. 



[Supplementary list of Vermont ferns.] Fern Bulletin, xiii. (1905) pp. S4-5. 



Weiss, F. E. & J. Lomax. — The stem and branches of Lepidodendron Selaginoides. 

 [Of this species Sigillaria vascularis is proved to be a synonym.] 



Manchester Memoirs, xlix. (1905) 17, 8 pp. (4 figs.). 



Bryophyta. 



(By A. Gepp.) 



Fegatella conica.* — E. Bolleter publishes a morphological and 

 physiological study of this plant, throwing further light upon some of 

 its structures. It is dioicous, and in the calendar of its development it 

 is shown to begin forming the rudiments of its antheridia in March or 

 April, and the archegonia in April or May. The antheridia becoming 

 ripe in June explode, and fertilisation occurs. Though the elaters and 

 spores are fully developed by October, they remain in the sporogonium 



* Beih. Bot. Centralbl., xviii. i. (1905) pp. 326-408 (2 pis. and 16 figs.). 



