ZOOLOGY AND BOTANY, .MICROSCOPY, ETC. 61 



though rare in herbaria, are not so in distribution. The plants of 

 both genera are very minute, but in some species are rendered con- 

 spicuous by their persistent green protonema. They are annual plants, 

 producing fruit during the winter months. Their habitats are as 

 follows : cultivated soil, paths, roadsides, river banks, dried-up ponds, 

 sides of ditches, etc. They do not occur in woods, but in more or 

 less sunny situations, and are often associated with species of Riccia. 

 Their geographical distribution needs investigation. 



Norfolk Bryophytes.* — W. H. Burrell publishes a supplementary 

 list of Norfolk mosses and hepatics with a view to establishing even- 

 tually a complete record of the distribution of the species throughout 

 the county. In the meantime it is shown clearly what species occur 

 in East and West Norfolk respectively. Ninety-nine mosses and 

 >ixteen hepatics are enumerated. 



New and Rare European Mosses.j — 0. Roth gives an account of 

 some new or little known European mosses, with figures of their struc- 

 ture, namely, Distich ophyl I um carinatum Dixon and Nicholson, and six 

 species of Drepanocladus and two of Calli&rgon. The Distichophyllum is 

 remarkable as being a genus new to Europe, and a species with 

 antarctic affinities. It was discovered near Salzburg ; and the family 

 Hookeriaceae to which it belongs is represented by very few genera in 

 Europe. 



Moss-flora of South Thuringia.J— B. Krahmer gives an account 

 of the moss-fiora of the environs of Arnstadt and southern Thuringia, 

 with introductory notes on the work of previous collectors, on the 

 physical geography of the region, and on ecology. The enumeration 

 includes 26:; mosses and fifty-two hepatics. 



.1. Roll § criticises the above paper, and indicates the points in which 

 he differs from Krahmer, mostly points of minor importance. 



Moss-flora of Eisenach || — P. Janzen gives an account of the hepatics 

 of the environs of Eisenach, with an enumeration of sixty-eight species. 

 One of the most active collectors was Rudert, who found ninety-three 

 mosses and forty-one hepatics in one gorge. 



New Records of Hamburg Mosses.1l — J. Schmidt gives some new 

 results arising from an invest igation of the flora of Hamburg, compris- 

 ing notes on thirty-one mosses, their <listribution and peculiarities. 



New England Hepaticse.** — A. W. Evans publishes an eighth series 

 of notes on the hepaticee of New England. He gives a description of 

 Jlircia sorocarpa Bisch, and discusses its history and synonymy, and the 

 question whether R. minima of Linnams can be retained for R. nigrella 

 or for R. sorocarpa. He also redescribes Ricciella membranacea, moving 



* Trans. Norfolk and Norwich Nat. Soc, ix. (1910) pp. 99-106. 

 t Hedwigia, 1. (1910) pp. 105-114 (1 pi. and fig.). 

 J Mitteil. Thuring. Bot. Ver., xxv. (1910) pp. 2-28. 

 § Op. cit., xxvii. (1910) pp. 17-21. 

 Op. cit., xxv. (1910) pp. 35-40. 

 «j[ Allgem. Bot. Zeitschr., xvi. (1910) pp. 172-5. 

 *• Rhodora, xii. (1910) pp. 193-204. 



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