56 SUMMARY- OF CURRENT RESEARCHES RELATING TO 



W. Watson* records the occurrence of Aplozia riparia vax.potamophila 

 Bernet in an upland stream in Greenfield, Yorks., and gives a list of the 

 species with which it is was associated. The variety had been pre- 

 viously recorded from Scotland and the Isle of Man. The Greenfield 

 plant is unusually large, and much resembles A. cordifolia. 



New Scottish Mosses.f — J. Stirton gives an account of some new 

 and rare mosses from the West of Scotland He describes as new 

 species the following : — D&ranowdssia sutherlandi, Mollia thrausta 

 (= 31. tortuosa var. fragilifolia Lorentz), M. intumescens,\M. conspersa, 

 31. subbifaria, Grimmia subaquila, Anactangium marinum, Dichodontium 

 fidvescens. He calls attention to the structure of the acumen of the 

 leaf of 31. tortuosa ; records the discovery of fruiting specimens of 

 31. inclinata for the first time in Britain ; and announces that his own 

 31. aggregate/, is probably merely a curious form of M.fragilis. He also 

 publishes some further details about 31. terrena. 



Norwegian Moss-flora. :}: — I. Hagen issues the third portion of his 

 treatise on the moss-flora of Norway, and treats of the Grimmiacea?, 

 Timmiacea?, Schistostegaceae, and Hedwigiaceae, providing keys to the 

 genera, sub-genera, and species. The remarks on distribution are in 

 Norwegian ; but the critical systematic remarks are in French, since 

 they appeal to a wider range of students. 



Russian Bryophytes. — J. P. Petrow § enumerates sixty-three species 

 of mosses collected in the environs of Moscow. A. A. Sapehin || pub- 

 lishes a list of thirty-five mosses and one hepatic, collected in the 

 Governments of Kherson and Ekaterinoslav in South Russia, 



Hepatics of the Haute-Saone.1T— A. Coppey gives an account of 

 the hepatics of the Haute-Saone, prefaced by a sketch of the physical 

 geography of the department and of the literature already published on 

 its moss-flora. The enumeration contains seventy-eight species and a 

 few varieties. Inter alia he sums up in parallel columns the respective 

 characters of Aneura multifida and A. sinuata. 



New German Mosses.** — C. Grebe describes in detail two new mosses 

 — Ditrichum julifiliforme, from Rheine in Westfalen, and Tortula calcicola y 

 from walls in Obermarsberg in Westfalen, and from various other places 

 in Middle Germany. The former is quite a distinct species. The latter 

 is allied to T. ruralis. The author adds an historical sketch of the species 

 of the group of T. ruralis, and shows how the plants may be distin- 

 guished in the sterile state. He appends a key for the ten species of 

 the group. Four of these are found on bark — T. latifolia, T. papillosa, 

 T, pulviuata, T. Isevipila. And six are found on the rocks and earth — • 

 T. calcicola, T. montana, T. ruralis, T. aciphylla, T. alpina, T. 3LueUeri. 

 Minor differences are found in characters of stem and leaf. 



* Journ. Bot., xlvii. (1909) p. 417. 



t Ann. Scot. Nat. Hist., No. 71 (1909) pp. 168-73, 241-6. 

 I K. Norsk. Vidensk. Selsk. Skrift., No. 5 (1909) 114 pp. (figs.). 

 § Bull. Jard. Imp. Bot. St. PStersbourg, ix. (1909) pp. 45-64. 

 || Tom. cit., pp. 10-14. 



T Rev. Bryolog.,xxxvi. (1909) pp. 118-28, 147-52. 

 ** Hedwigia, xlix. (1909) pp. 66-77. 



