THE BOTANY OF ICELA>*D 279 



Pellia Neesiana, Aneura pingnis, ibid. Sometimes the moss carpet 

 consists only of an elongated slender form of Philonot is fontanel , or 

 of Aulacomnium ijalustre. On dryer clayey ground (20''-40'^ C.) 

 the Hypnaceous carpet is replaced by sterile mats of Archidium 

 phascoides 1-2 cm. high, which have been mistaken by earlier col- 

 lectors for stunted forms of Leskea, Catoscopium, Polilia, Ambit/' 

 stegium; and in these mats may be found Campylopus jiexuosuSi 

 C. fragilis, Oligotricliuin hercgnicum, Catfiarinea icndulata, Gy mno- 

 colea injlata, and sundry other species. 



In damp clayey soil along the outlets of the hot springs, pure or 

 slightly sulphui-etted, a low Bryophyte carpet occurs, chiefly com- 

 posed of tlierinophilous hepatics — Fossomhronia Dnmortieri, Antho- 

 ceros pnnctatus, Haplozia crenulata, Alicularia scalaris, and with 

 them Oligotrichum hercgnicum. Near the sulphur springs S2}hag- 

 num and the Hypnaceaj are entirely absent, whereas many of the 

 Hepatica; are to be found — the species just mentioned and Ggmno- 

 colea inflata and Preissia commiitata, together with Archidium 

 phascoides, Polgtrichum commune, and a few other mosses. Riccia 

 hifurca, B. sorocarpa, and P. crgstallina are especially fond of the 

 dry warm ground near sulphur springs. It should be added that 

 blue-green Algse were growing in hot overflows on siliceous sinter at 

 temperatures as high as 60°-70° C. 



The text is illustrated by a nmnber of process blocks, which are of 

 material assistance in picturing the scenery discussed in the paper. 



A. Gepp. 



BOOK-NOTES, NEWS, etc. 



The Transactions of the British Mgcological Sociefg for 1917 

 (Vol. vi, parti; Aug. 17 : price to non-members 10s. ^d.) begins 

 with a Keport of the foray at Shrewsbury in September last, by the 

 Hon. Secretary, Mr. Carleton Eea, who gives a complete list of the 

 Fungi noted, to which Miss Lister adds one of the Mycetozoa. 

 Miss A. Lorrain Smith, besides her Presidential Address on " The 

 delation of Fungi to other Organisms," contributes a paper on 

 " Hyphomycetes and the Kotting of Timber" ; descriptions of " New 

 or Kare Micro-fungi " (with Mr. Eamsbottom) which include a new 

 genus, Disocera, discovered in Somersetshire on the thallus of a lichen 

 by Mr. W. Watson ; and a notice of W. Gr. Smith as a mycologist. 

 Dr. Jessie Bayliss Elliott describes and figures "New Species of 

 Fungi Imperfeeti " and writes on " The Method and Growth of the 

 Gonidial Glusters of Trichothecium roseum.'" Miss E. M. Wakefield 

 contributes a paper " On the Biology of some Sand-dime Fungi " and 

 (with Mr. A. A. Pearson) desci'ibes and figures " llesupinate Hyme- 

 nomycetes from Weybridge"; Mr. Pearson also writes on "Two- 

 spored Basidia." Mr. Ilea's description of "New and Kare British 

 Fungi " is accompanied by one of Mrs. Kea's excellent coloured plates. 

 We note with interest that Lichenology is to be added to the Society's 

 Held of activity. The Society is to be congratulated on the jmblication, 

 in these difficult times, of so substantial a contribution to knowled"-e ; 



