CURRENT LITERATURE 61 



HYDRACHNID^E COLLECTED BY THE LAKE SURVEY. William 

 Williamson, Proc. Roy. Soc. Edin., vol. xxvii. pt. iv. No. 30, pp. 

 302-307, figs. 1-7. Eighteen species, belonging to twelve genera, 

 recorded from various localities. 



SCOTTISH HYDRACHNIDS SPECIES COLLECTED DURING 1906. 

 By William Williamson, Trans. Edin. Field Nat. and Micro. Soc., 

 session 1906-7, pp. 393-394- Twenty-six species recorded, of 

 which seven are new to Scotland. 



THE RE-DISCOVERY OF APUS IN BRITAIN. The Field, 26th 

 October 1907, p. 765. This note refers to specimens obtained by 

 Mr. Frank Balfour Browne in two pools on Preston Merse, near 

 Southwick, Kirkcudbrightshire. 



BOTANY. 



SUMMER EXCURSIONS OF 1906. Proc. Perthsh. Soc. Nat. Sc., 

 iv., pp. cxxxviii-cxliii. Near Ochtertyre were found Strobilomyces 

 strobilaceus, Cortinarius bolarius, and other rare fungi. 



RUBUS MUCRONATOIDES. By the Rev. Augustin Ley, M.A. 

 Journ. Bot., 1907, pp. 446-447. Described as a variety of R. 

 mucronatus'm Rogers's Handbook of British Rubi, but here regarded 

 as a distinct species. It has been recorded in Scotland from Nairn 

 (96) and Rosemarkie (106). 



NOTE ON THE FLORA OF THE BLACK ISLE. By Rev. Canon 

 Spence Ross. T. and P. . B. S., xxiii. pp. 251-252. Enumerates 

 Pingidcula grandiflora near Fortrose and near Ferintosh, Atropa 

 Belladonna near Cromarty, and Corallorhiza near Fortrose. 



NOTE ON PlNGUICULA VULGARIS, LlNN., AND ITS VARIANTS 



TOWARDS GRANDIFLORA. By Dr. Wm. MacLean. T. and P. E. B. S., 

 xxiii. p. 251. Relates to forms observed in the Black Isle, Ross- 

 shire, in 1905. 



NOTE ON JUNCUS EFFUSUS, VAR. SPIRALIS. By Magnus Spence. 

 T. and P. E. B. S., xxiii. p. 233. Records its being "pretty 

 common in Orkney." 



ALIEN AND CASUAL GRASSES FOUND NEAR EDINBURGH. By 

 James Fraser. T. and P. E. B. S., xxiii. p. 239 and pp. 255-256. 

 Twenty-one species recorded, about half not having been found 

 in Scotland previously. 



LASTR^EA REMOTA from the Ben Lomond district. Exhibited 

 (9th May 1907) by W. B. Boyd. T. and P. E. B. S., xxiii. p. 281. 



NOTE ON PETALOPHYLLUM RALFSII AND PALLAVICINIAHIBERNICA. 

 By Bertram Cockburn, Ph.C. T. and P. E. B. S., xxiii. pp. 

 279-280. 



