Bryophyten. — Pteridophyten. — Floristik etc. 471 



Hill, E. J., Note on Amblystegium noterophilum. (Bryol. XII. p. 

 108—109. November, 1909). 



Notes upon the habitat and time of maturation of this species as 

 observed by the writerat several stations in Illinois and Michigan. 



Maxon. 



Lorenz, Annie. Notes on Cephalosiella (Spruce) Schiffner. 

 (Bryol. XII. p. 25-27. March, 1909). 



Relates chiefty to charactefs of C. myriantha and C. divaricata, 

 as they occur in New England. Maxon. 



Stirton, J., New and rare mosses from the West of Scot- 

 land. (The Annais of scottish nat. Hist. 71, 72. Edinburgh, 1909. 

 p. 168—173, 241—246.) 



The author describes the following new species: Dicranoweissia 

 Sutherlandi, Mollia thraustra (= M. tortuosa var. fragilifolia Lorentz), 

 M. intumescens, M. conspersa. He describes also the structure of the 

 acumen of the leaves of M. tortuosa; records the finding of fruiting 

 specimens of M. inclinata, for the first time in Britain; and states 

 that M. aggregata is probably merely a curious form of M. fragilis. 

 In the second instalment of his paper he describes the following 

 novelties: Mollia subbifaria, Leptotrichum cyclophyllum, Grimmia 

 subaquila, Anoectangium marinum, and var. obrutum, Dichodontium 

 fulvescens. He gives some further notes about Mollia terrena descri- 

 bed by him in 1900. A. Gepp. 



Watson, W., Aplosia riparia var. potamophila in Yorkshire* 

 (Journ. of Bot. XLVII. December 1909. p. 447.) 



The author records the occurrence of this hepatic in an upland 

 stream in Greenfield, and gives a list of the bryophyta with 

 which it grows associated. The variety had already been twice 

 reported in Britain, namely from Scotland and the Isle of Man. 

 The Greenfield plant is unusually large and much resembles A. 

 cordata. A. Gepp. 



Maxon, W. R., A new Spleenwort from China. (Cont. U. S. 

 Nat. Herb. XII. p. 411. plate 60. May 10, 1909). 

 Describes Asplenium microtum Maxon, sp. nov. , fromMengtse, 

 Yunnan, China, founded upon Henry 10344. The species is allied 

 to A. Trichomanes. Maxon. 



Coquide, E., Sur la pluralite des types de Vegetation dans 

 les sols tourbeux du nord de la France. CC. R. Ac. Sc. Paris. 

 CIL. 24. p. 1144-1146. 13 Dec. 1909.) 



Les tourbieres mortes du N. de la France se presentent 

 sous deux facies distincts. Les unes sont marecageuses, formees 

 d'une Vegetation essentiellement hygrophile: grandes plantes dres- 

 sees, ä feuilles molles, decoupees, lignification faible, tissus lacuneux, 

 etc.; c'est le facies jungle. Dans les tourbieres du type sec ou 

 xerophytique, on rencontre au contraire des especes de petite 

 taille ä feuilles entieres, velues, ä racine longuement pivotante; les 

 feuilles ont un epiderme epais, des palissades tres developpees, tous 

 caracteres des plantes propres aux sols arides. J. Offner. 



