1911-12.] BOTANICAL SOCIETY OF EDINBURGH 75 



along the Siberian coast to Behring's Straits. 1 The 

 American Arctic coast to Labrador, south to Saskatchewan. 

 E. and W. Greenland, as var. a Ip i n a . Engler Mon. Wanning, 

 " Om Groenlands Vegetation," 1886-7, does not give any 

 height for this, though citing many species up to 4000 

 feet. It will bear intense cold, as on the island of 

 Kolegew, where '" the thermometer never rose above 9 : R. 

 in July and August 18-11"":- there it is common. It also 

 occurs on Spitzbergen and Bear Island. 



I am not sure whether the first Scottish record was the 

 Berwick one in Watsons " Outlines. ' 1832, or the Black- 

 shiels one in the " Edin. Phil. Journal." as I have not 

 access to the latter. It is not given in Dr. Johnstons 

 "Flora of Berwick," ii., 1831. 



Along with the Saxifrage there was a form of Cerastium 

 vulgoturn.. L. {trivicUe, Link), which looked very different 

 from the ordinary form of the species, no doubt induced by 

 the place of growth. Still thinking it might be one of the 

 Swiss forms so found, I sent specimens to Dr. Schinz of 

 Geneva : he referred them to Dr. Keller of Berne. Dr. 

 Keller reports: "They are only a form of C. ccespitoswm, 

 Gilib. 3 {=vuLgatwm, Wahb. ). but the plant ought to be 

 observed. Like all species of Cerastium. ccb& tosu m shows 

 a great variation in all parts according to the medium in 

 which it liv - Dr. Keller writes: " G. vulgatv/m,, L. 

 {=gloraeratum, Thuill.. viseosum, Fv.)." which opens the 

 door to a war of words. One accepts the decision : at 

 the same time, the plant is easily distinguished by the eye. 

 Another addition to the county was growing with it — 

 Ri.rnun cuius scot ic us. Marshall. 



A New Species of Pyrenoch.eta. By Malcolm 

 Wilson. D.Sc. F.L.S. 



This plant was discovered by Mr. Wm. Xowell in consider- 

 able quantity during the summer of 1911 on dead Holly 

 leaves on Wimbledon Common, near London. In ^ize it 



1 Kjellman, "Vega Expedition'" (] 882 . 263, 302. 



- Erman, "Arch. Wiss. Kimde v. Rnsslandes" 1852), x. 313-16; 

 quoted by Fielden and Geldart, "Trans. Xor. and Norf. N. Soc. r ' 

 (1896), p. 169. 3 Gilibert, "Fl. Lithuania," v. (1782), p. 159. 



