ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 165 



systematic treatment which follows, tlie Sphagna occupy a large part ; 

 fifty-five species and sub-species are recognized for the European flora, 

 of .which fifty are recorded for Thiiringen. A synopsis and keys and 

 critical notes are given for the Sphagna, as also for the mosses. Among 

 the latter the genus Oreoiveisia is^ discussed, as well as the relations 

 between Dicranwn Schraderi and D. spur mm, Weisia viridula and W. 

 rutilans, etc. The groups respectively of Didymodon cordatus. D. rigi- 

 dtdus, and D. spadiceus are presented in detail, and their relationship is 

 discussed. The memoir is an important one to bryology, and represents 

 the summing up of several decades of careful study. B. S. G-. 



Vegetative Increase of Ptergynandrum filiforme (Timm) Hedw. 

 — C. Warnstorf {Hedwigia, 1914, 55, 378-80 ; see also i?o/!. Gentralbl., 



1915, 128, 680-1). An addition to the author's communications on 

 brood-branchlets and 'brood-bodies in Fterigynandrum filiforme, already 

 published in the " Kryptogamen-flora der Mark Brandenburg." The 

 brood-branchlets, whose significance is still rather in doubt, were only 

 seen once in a Norwegian plant ; while, on the other hand, plants with 

 brood-bodies have been observed by him from six localities. The brood- 

 bodies, which are figured, are borne on stalks, and arise at the apex of 

 short branched pedicels which occur in bunches in the leaf -axils. The 

 brood-bodies are elongate oval to short clavate, almost always with one 

 to three transverse walls; when ripe, brown with hyaline basal cell. 

 Dispersal follows easily by fracture. They are on an average 33-60 p. 

 long and 16-20 p broad. Stages of germination were not observed. 

 The plants were collected in the Siideten, Mecklenburg, and the Middle 

 European Alps. Plants bearing brood-bodies had however been pre- 

 viously recorded from England and Saxony. E. S. Gr. 



Histology of Ephemeropsis tjibodensis Goebel. — I. Gyorffy 

 {Bot Muz. FiizeteTc., 1916, 2, 1, 20-32, 2 pis. ; see also Bot. CeniralbL, 

 1917, 135, 206). An amphfied description of this remarkable moss, 

 with special attention to the shape of the capsule, the operculum, the 

 epidermis of the theca, the peristome- teeth (the genus belongs to the 

 Diplolepideje), the stomata and respiratory apophysis, and the seta. 

 The air-chamber of part of the neck of the capsule is lightly pervaded 

 with the looser cells of the spongy parenchyma, which points to a highly 

 developed transpiration of the sporophyte. E. S. Gr. 



Moseniella : a New Moss Genus from Brazil. — Y. F. Brotherus 

 (Arlciv for Botanik, 1917, 15, No. 7, 3 pp., 1 pi.). Description and 

 figures of the structure of Moseniella brasiliensis, a new moss collected 

 by H. Mosen in the province of Minas Geraes in 1873. It is a Splach- 

 naceous genus, nearly allied to Orthodon, but differing in the structure 

 of its sporogonium, and much resembling some species of Physcomitrium 

 in habit. A. G. 



Bryum vermigerum. — H. W. Arnell and C. Jensen {Bot. Notiser, 



1916, 129-32, 1 pi.). A description of a new species, Bryum {Eubryum) 

 vermigerum, discovered at Finse in Hardanger, Norway about 1300 m. 

 above sea level, by G. Samuelsson. In size and general habit it resembles 



