736 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Dicranoloma.* — J. Cardot discusses the propriety of the generic 

 name Dicranoloma Ren., which bad been called in question by I. Hagen 

 in a pamphlet on nomenclature published at the International Congress 

 of Botanists at Brussels. Hagen suggests two alternative meanings for 

 the word. Cardot repudiates these suggestions, and says that the 

 meaning which Renauld intended the word to have is, Dicranum with 

 bordered leaves. 



Prehistoric Mosses from Lincolnshire. f — T. Shej^rd gives a list 

 of the mosses and hepatics found in the material used for caulking the 

 prehistoric boat dug up at Brigg in 1886, and now preserved in Hull 

 Museum. The species were determined by M. B. Slater, and comprise 

 twelve mosses and eleven hepaticse. The boat was excavated from a 

 single oak tree, and is 47 ft. 6 in. long and 4 ft. 6 in. wide. 



Yorkshire Mosses.} — W. Ingham gives an account of the bryo- 

 phytes collected by the Yorkshire Naturalists' Union near Middleton- 

 in-Teesdale ; more particularly at Hudeshope's Beck ; between High 

 Force and Cauldron Snout ; Widdy Bank Fell ; along Lunedale to 

 Grassholme ; Shacklesborough Moss. The latter is an extensive 

 Sphagnum bog. Several interesting species of mosses and hepatics were 

 gathered, and some notes on their habitats are given. 



The same writer § also publishes a note on the rare moss Plagiothecium 

 silesiacum, collected in fruit at Fimber in the East Riding of Yorkshire. 

 It had previously been gathered in Kent (1843) and in Yorkshire 

 (1847). It was growing on rotting wood and pine needles. 



Pallavicinia Flotowiana in Scotland. || — J. McAndrew records 

 the finding of the rare thalloid hepatic Pallavicinia Flotowiana Lindb. 

 on Gullane Links. Other stations for it in Scotland are the Sands of 

 Barrie and Tents Muir ; in England, Coatham marshes and Southport 

 sands. It grows on damp spots among seaside sand-dunes, on ground 

 apt to be covered with water in winter. 



Distribution of Hepaticse in Scotland.^ — S. M. Macvicar publishes 

 a detailed account of the distribution of hepaticas in Scotland, the out- 

 come of several years' investigation. He gives in his first chapter a list 

 of collectors, with their dates and with the species which they added to 

 the Scottish flora. In succeeding chapters he toucbes on the ecology of 

 hepaticae, and discusses the influence of rainfall and latitude, the nature 

 and requirements of the Atlantic species, the western as opposed to the 

 eastern species, species in relation to habit and altitude, and makes a 

 comparison with the flora of other countries, and a sketch of the flora of 

 the following provinces : east and west Lowlands, east and west High- 

 lands, Hebrides, north Highlands, Orkney and Sbetland. The rest of 

 the work is arranged systematically. Under each species the distribution 

 is clearly displayed, the sub-province, vice-county, place and collector 

 being recorded, with a generalized statement added, and notes on 

 habitat, plant-associations, and so forth. 



* Rev. Bryolog., xxxvii. (1910) pp. 105-6. t Naturalist, No. 643 (1910) p. 315. 

 % Op. cit., No. 642 (1910) pp. 265-7. § Tom. cit., p. 314. 



|| Trans. Edinburgh Field Nat. and Micr. Soc, vi. (1908) p. 67. 

 4 Trans. Proc. Bot. Soc. Edinburgh, xxv. (1910) pp. 1-336. 



