210 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Kindbekg, N. C. — Note snr les especes scandinaves du genre Bryum. (Noteonthe 

 Scandinavian species of the genus Bryum.) 



[List of more than 100 species, most of which occur in the Dovrefjeld.] 



Uev. Bryol., xxxi. (1904) pp. 13-14. 



Lengtel, B. — Uber das Vorkommen eines seltenen Lebermooses in TJngarn. (Upon 

 the occurrence of a rare Liverwort in Hungary.) 



[Fertile specimens of Hypenantron fragrant, an addition to the Hungarian 



flora, have been discovered in limestone clefts on the Turulberg near 



Banhida.] Mag. Bot. Lapolc, ii. (1903) pp. 182-3. 



Limpricht, K. G.,j & W. — Rabenhorst's Kryptogamen-Flora von Dentscbland, 



Osterreich und der Schweiz. IV. iii. Leipzig, 1904. Die Laubmoose (Mosses), 



Lief. 41, pp. 33-79. 



[End of the work: index of synonyms, bibliography, title-pages, and preface.] 



Lindbebg,H. — Stereodon plicatulus Lindb. 



[Characters which distinguish it from S. revolutus Mitt.] 



Bryologist, vi. (1903) pp. 82-3 (1 pi.), 



Migula, W. — Thome's Flora von Deutschland, Osterreich und der Schweiz. 



v. (Gera, 1903) Lief. 15, Cryptogamen, pp. 385-400 (5 pis.). 



Boll, J. — Beitrage zur Moosflora der Transsilvanischen Alpen. (Contributions to 

 the moss-flora of the Transsylvanian Alps.) 



[An annotated list of mosses gathered in July 1900, with descriptions of one 

 new species and sixteen new varieties.]' 



Hedwigia, xlii. (1903) Beiblatt, pp. 297-305. 



Both, G. — Bedentnng der Moose fur den Waldbau. (Significance of mosses in 

 forestry.) 



[Value of the information afforded by mosses as to moisture, climate, soil, etc., 

 in connection with the planting of trees suitable to a given district.] 



Allgem. Bot. Zeitschr., 1903, pp. 122-3. 



Stephani, F. — Species Hepaticarum. 

 [Monograph of Plagiochila.'] 



Bull. Herb. Boiss.,ser. 2, iv. (1904) pp. 18-32. 153-08. 



Stow, S. C. — Mosses at Grantham. The Naturalist, 1903, p. 265. 



Torka, V. — Bryologische Beitrage. (Bryological notes.) 



[Field notes on Cinclidium stygium and its spore-ripening, and on Bacomi- 

 trium patens var. crassifolium, a new variety found in the German plain.] 



Allgem. Bot. Zeitschr., 1903, pp. 145-G. 



Thallophyta. 



Algae. 



Phytoplankton of the Volga.* — Bolochonzew details the results of 

 his investigations into the plankton of this river. He divides his paper 

 into three chapters. The first contains a list of organisms found by 

 him, arranged under special headings : — (1) True plankton, which is 

 principally adapted for existing in a condition of suspended life ; (2) 

 Oround plankton, which occurs most frequently in the flora of the 

 bottom or on the shore ; (3) Casual plankton, i.e. those organisms 

 which really belong to the bottom or littoral flora, and occur only by 

 chance among true plankton, when brought by waves or currents, 

 sooner or later sinking to the bottom ; (4) Passive plankton organisms, 

 which fasten on to other plankton. The author also takes into account 

 a portion of the Volga which is almost entirely cut off from the main 

 stream, and he points out the gradual change in the plankton species. 



* Jahrb. Biolog. Wolga-Station, Ssaratow, 1903 (1 pi). See also Bot. Central!)!, 

 xcv. (1904) pp. 83-0. 



