Bryophyten. 727 



Wheldon, J. A., The North of England Harpidia [after 

 Renaul d]. (Naturalist. London 1902. p. 65—92. With. 

 4 plates, and figs. in text.) 



The author describes and revises the species and groups of varieties 

 and forms of the most difficult section of the Moss-genus Hypnum, so 

 far as they occur in the Northern counties. He introduces some new 

 varieties and forms named by Renauld, but not previously described. 

 The plates are nature-prints and represent 36 specimens selected to 

 show the habit of each. A. Gepp. 



Hunter, J., North Don egal Mosses. (Journal of Botany. 

 XL. London 1902. p. 191 — 196.) 



A list of Mosses gathered by the author in the rieh district near 

 Lough Swilly in the north of Ireland. A. Gepp. 



Stirton, James, New and rare Scottish Mosses. (Annais 

 of Scottish Natural History. No. 42. 1902. Edinburgh, 

 p. 103—112.) 



The author points out the close affinity oi h'is Dicranum Fergussoni 

 with D. Muehlenbeckü, redescribes Campylopus fulvoviridis, describes 

 Mollia Haggartii. Oncophorus polycarpoides (^ Cynodontium laxirete 

 Dixon), Grimm la hemipolia, G. papillulata, Hypnum provectum and 

 conostomum(?) exteniiatiim ; and offers some remarks about other rare 

 mosses that occur in Scotland. A. Gepp. 



PORSILD, MORTEN P., Sur une nouvelle espece de Rlella 

 [s üb gen. nov. : Trabiitlella] de l'Asie centrale. 

 (Kjöbenhavn, Botan. Tidsskr. Bd. XXIV. 3. 1902. p. 323 

 —327.) 



From the Danish Pamir-Expedition in the years 1898 — 99 the 

 Botanist Ove Paulsen brought home a portion of dried-up clay from 

 a pond near Buchava. 



About two years after this clay was brought in water for the purpose of 

 obtaining living Daphnides. The animals also appeared, but moreover a 

 rieh flora grew out; the main part of the last was a species of the interes- 

 ting genus of Hepaticae : Riella, which hitherto was known only from 

 the Mediterranean area. 



The author gives an exhaustive description of the Riella with 

 several figures; it is nearest to R. Co5so«/a«a Trabut, from which it differs 

 in the structure of the spores and the arrangement of the antherids etc., 

 and the author names it R. Paulsenii n. sp. and proposes to form a new 

 subgenus Trabutiella of these two species, characterized by the 8-winged 

 involucrum of the sporangium, while the subgenus Euriella has a smooth 

 or papillose, not winged involucrum. 



He announces a more comprehensive treatise on the development of 

 this Riella. C. H. Ostenfeld. 



DixON, H. N., Note on Philonotis laxa Limpr. (Journal of 

 Botany. London 1902. XL. p. 71—73.) 



A füll discussion of the affinities of this moss, which the author 

 shows to be with P. fontana Brid. He regards it as a variety, and pro- 

 poses for it the name P. fontana Brid. var. ampliretis Dixon. 



A. Gepp (London). 



