84 SUMMARY OF CURRENT RESEARCHES RELATING TO 



the vegetative and reproductive organs. He discusses also the question 

 of classification, and selects, as the most comprehensive, the one followed 

 by Nylander and Hue. This first part includes the lichens with blue- 

 green algae down to the end of the Collemaceae. An index is provided 

 of the groups dealt with. 



Some French Lichens. — G. Pagny * writes a note on the occurrence 

 of Usnea longissima in a fertile condition in the Vosges, the first 

 collection of the fruiting form in France. One of the specimens 

 measures 4£ metres, another 2% metres. 



F. G. Parriquef writes on the Cladonias of the French flora. He 

 informs his readers first of all as to his interpretation of the terms 

 species, variety, and form. He then divides his plants into 4o species, 

 grouped into 16 sections. He describes some 66 plants. 



A'l;othin, N. — Bidrag til Kannedomen om Skanes Lafflora. (Contribution to the 

 knowledge of the Lichen-Flora of Schonen.) 

 [186 species are recorded.] 



Arkiv Bot., ii. No. 6 (1904) pp. 1-30. See also 

 Bot. Centralbl. xcix. (1905) p. 475. 



Britzelmayr, Max. — Ueber Cladonia degenerans Fl. und digitata Schaer. (On 



Cladonia degenerans and CI. digitata.) 



[The author describes the different recognised forms, and adds critical and 

 descriptive notes.] Hedwigia, xlv. (1905) pp. 44-52. 



Duss, L. R.-P. — Flore Cryptogamique des Antilles Francaises. (Cryptogamic 

 Flora of the French West Indies.) 



[The Lichens have been determined by'Ed. Wainio ; there are a few new 

 species.] Lons-Le-Saunier, 1904, pp. 305-22. 



Fernandez, D. Manuel Llenas y. — Enumeracion y distribucion geografica 

 de los Peltigeraceos en Catalnna. (Enumeration and geographical distribution 

 of Peltigeracese in Catalania.) 



Bol. Real. Soc. Esp. Hist. Nat., v. (1905) pp. 168-75. 



Navas, R. P.— Notas lichenologicas IV. Los Cladoniaceos de Espanola. (Licheno- 



" )ain.) 



Op. cit., iv. (1904) pp. 226-36. See also 

 Ann. Mycol., iii. (1905) p. 387. 



Schizophyta. 

 Schizomycetes. 



Bacillus Indurans. — R. Greig Smith gives the following description 

 of B. indurans sp. n., a bacterium which has the novel property of 

 hardening gelatin. Rods with rounded ends, varying in size from 0*4— 

 2 "2 ft. They are actively motile and the flagella are numerous and 

 peritrichous. They are negative to Gram, and do not form spores. The 

 colonies are mostly white, flat, and round, while the medium gradually 

 assumes a reddish mahogany hue and also is rendered insoluble. 

 On potato the growth is scanty and yellowish, the medium becoming 



* Bull. Soc. Sci. Nancy, 3rd ser., vi. (1905) 6pp. See also Bot. Centralbl., xcix. 

 (1905) p. 429. 



t Actes Soc. Linn. Bordeaux, lix. (1905) 76 pp. See also Bot. Centralbl., xcix. 

 (1905) p. 429. X Proc. Linn. Soc. N.S.W., xxx. (1905) pp. 339-43. 



