120 Bryophyten. — Pteridophyten. 



tions of the rieh materiai collected by W. A. Weymouth and sub- 

 mitted to the experts — Brotherus, Veuturi, Warnstorf, Ste- 

 phan! — materiai which added 150 new species to the flora of 

 Tasmania. The two present instalments provide diagnoses of the 

 genera and species comprised in the following farailies: Tortiilaceae, 

 Dicranaceae, Grimmiaceae, Leucobryaceae, Mniaceae, Fissidentaceae. 



A. Gepp. 



Christensen, C, On the Ferns of the Seychelles and the 

 Aldabra Group. (Trans. Linn. Soc. London. Bot. VII. 19, 

 p. 409—425. pl. 45. November 1912.) 



The author gives a complete list of the ferns of the Seychel- 

 les, including those collected by Prof. J. Stanley Gardiner du- 

 ring the 'Sealark' Expedition (1908). He records 78 species including 

 the following novelties: Dryopteris mauritiana var. Gardineri C. Chr. 

 (var. nov.), Asplertium y^Euasplenium) complanatum C. Chr. (var.nov.), 

 A. caudatum var. minor C. Chr. (var. nov.), Elaphoglossum martini- 

 cense var. obtusuni C. Chr. (nov. var.), E. Hornei C. Chr. (sp. nov.). 

 Critical notes are appended; and the distribution of the species is 

 displayed in tabular form. Twelve species are endemic. 



A. Gepp. 



Hieponymus, G,, Notes on two Selaginellas. (Journ. of Bot. LI. 

 610. p. 297-298. London, October 1913.) 



The author discusses the synonymy and distribution of Selagi- 

 nella Commersoniana Spring and 5. Wildenowü Baker. The former 

 species is confined to the Seychelles, and was by error attributed 

 to the Philippines. Commerson's original exactly matches recent 

 materiai from the Seychelles. The other species — S. WilldenowH — 

 has the following distribution: Indo-Malayan region, Madras to 

 the Himalaya and Cochin China, Malacca, Sumatra, Bangka, 

 Java, and the Seychelles. It has been erroneously recorded from 

 West Afrika, S. America, the Philippines and New Guinea. 



A. Gepp. 



Richter, A., Atszellöztetö es a mechanikairendszercor- 

 relatiöja a Schizaeäk sz ervezeteben. [Ueber die Kor- 

 relation des Durc hlü ftu ngs- und mechanischen Sys- 

 tems in der Organisation der Schizaeen]. (Mat. es Term. 

 tud. Ertesitö. XXX. 5. p. 797—842. 5 Taf. Budapest 1912.) 



Zwischen dem mechanischen und Durchlüftungssystem der Schi- 

 zaeen besteht ein physiologischer und anatomischer Zusammenhang, 

 der erläutert wird, wobei nam^entlich die Anpassungserscheinungen 

 an Klimaveränderungen betont werden, insofern es die Gruppen 

 Actinostcichys Wall., Pectinatae, Bifidae und Dichotomae angeht. Die 

 Spaltöffnungen sind gut entwickelt und sprechen nur für eine rege 

 Transpiration. Als xerophytische Eigenschaften erscheinen die 

 starke Reduktion des Assimilationssystems und die bedeutende 

 Entwicklung des mechanischen Systems. Matouschek (Wien). 



Watts, W. W., The Ferns ofLord Howe Island. (Proc. Linn. 

 Soc. N. S. Wales. 1912. XXXVII. 147. p. 395—403. March 1913.) 



The author spent two months on Lord Howe Island and 



