ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 723 



tire largely drawn from Engler and Prantl's Pflanzenfamilien, and the 

 descriptions of some of the species are based on J. G. Agardh's Epicrisis. 

 But many other species are here freshly described from specimens in the 

 author's own herbarium. A key to the New Zealand genera is given, 

 and these are fourteen in number. Both the generic and specific 

 diagnoses which follow are full of detail, and are further supplemented 

 by critical remarks. One new species is described, Spongoclonium 

 pastorale, from the Otago Peninsula. The paper is illustrated by eight 

 plates. 



Finland Algae.* — K. H. Enwald has studied the Chroococcaceae of 

 Finland, and enumerates in his paper thirty species, among which he 

 describes and figures a new form, stipitata, of G. macrococcus Rabenh. 



K. M. Levander contributes some information on the Rhizosoleniae 

 of the same country. He had in a previous paper noted the occurrence 

 of Attheya Zachariasii Bran., and Rhizosolenia longiseta Zach., in 

 Finland plankton ; in the present paper he gives notes on the distribu- 

 tion of the Rhizosoleniae in Finland waters, together with figures and 

 observations on R. longiseta Zach., R. eriensis H. L. Smith, R. minima, 

 Levand. ( = R. gracilis H. L. Sm.) and Atthega Zachariasii. 



The Algae of Lower Austria. f — A. Hansgirg publishes a preliminary 

 paper on this subject, which he is intending to elaborate into an exhaus- 

 tive book. The present paper includes only the results of his studies 

 during 190:3 and 1904, as his work previous to those years has been 

 already published. Records of species collected by other botanists in 

 Lower Austria are also given, as well as lists of places examined by 

 them and himself. The physical and geological character of the region 

 is discussed with relation to the algae. The hydrophilous and aerophilous 

 algae are the most developed. The number of species treated in the 

 present paper is 603, among which are 15 new forms and varieties, and 

 3 new species, one representing a new genus of Myxophyceae. A com- 

 parative table is given of the algae of Lower Austria, Upper Austria, 

 and Bohemia. 



The Algae of Germany.! — W. Migula has published the first four 

 parts of his volume on the algae in Thome's " Flora of Germany. " 

 These parts consist of the Schizophyceae, with Cyanophyceae, and include 

 forty genera. At the beginning of the volume the author treats of the 

 general characteristics of algae, as well as methods of collecting and 

 determining them. Then follows the systematic part, in which each 

 order is described, a synopsis of genera is given, and finally, a short but 

 complete diagnosis of each species. Many are figured in colour. 



Algae of the Weser Districts — J. Suhr concludes his list of the fresh- 

 water algae of the eastern mountainous district of the Weser, and adds 

 some general remarks on the flora as a whole. Of the 393 species and 



* Medd. Soc. Fauna Flora Fennica, xxx. (11(03-4) pp. 112-17 and 149-55 (1 pi.). 

 f Beih. Bot Centralb!., xviii. (1905) pp. 417-522. 



X Thome's Flora v. Deutschland. v. parts 11-21 (1904-5) pp. 1-112 (20 pis.). 

 § H. dwigia, xliv. (1905) pp. 289-300. 



3 C 2 



