ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 277 



the islands is as yet unknown ; for Winter succeeded in finding eleven 

 new species and eight varieties, which he describes and figures, as well 

 as eleven species already described but not known to occur in the islands. 



New American Fossil Moss.* — Elizabeth G. Britton and A. Hollick 

 publish a diagnosis of a new fossil rnoss found in 1S75 by S. H. Seudder 

 in the Tertiary (Miocene) shales of Florissant, Colorado. It is named 

 Plagiqpodopsis Scudderi, from its general resemblance to Plagiopus Oederi 

 Limpr., of the Bartramiacea3. 



West Indian Mosses. f — Elizabeth Gr. Britton publishes an account 

 of 28 mosses, collected in the Danish West Indies and Virgin Islands 

 by herself and others, including Breutel's collection (1841). She gives 

 diagnoses of three novelties — Hyophila uliginosa, Phascum sessile, Bryuni 

 microdecurrens — and also of B. Cruegeri Hampe. 



Australasian Mosses 4 — H. 1ST. Dixon publishes descriptions and 

 figures of some new and rare Australasian mosses, mostly from W. 

 Mitten's herbarium. The following species are new : Dkranoloma 

 angustiflorum from Tasmania, and the rest from New Zealand : Dicranum 

 aucTclandicum, Didymodon calycinus, Cinclidotus australis, Macromitrium 

 Petriei, Pohlia novse-seelandise, Anomobryum densitm, Pltilonotis australis 

 var. surculigera, Thamnium baculiferum, T. latifolium var. elongation, 

 Pterygophyllum distichophylloides, Rhynchostegium cylindrithera. A 

 description of the perichaetium and fruit of Taxithelium polystictum is 

 given : and the characters of the difficult group — Macromitrium erosulum 

 and its allies — are critically discussed. 



Cratoneuron filicinumj — L. Dietzow discusses the systematic posi- 

 tion of Cratoneuron fllicinum, which is shifted about by authors between 

 that genus and Hygroamblystegium. Dietzow considers that it should 

 be definitely accepted as a Cratoneuron. As further confirmation of 

 this view he instances the variety verrucosa Dietz. with the warty pro- 

 tuberances on the leaves, the extreme forms of which are f. scabrida and 

 f . pseudopapillosa. These forms are regarded as parallels with C. decipiens, 

 although the author himself emphasizes the fact that this species has 

 sharp-pointed papilla?. Finally, the author inveighs against the habit 

 of making a " variety " out of every slight variation of a species. Such 

 variations of habit deserve only the name of '' form." A "variety" 

 demands a distinct anatomical characteristic which may be determined 

 with certainty. 



Lepidozia sylvatica in Britain. || — W. E. Nicholson publishes an 

 account of the North American hepatic Lepidozia sylvatica Evans, which 



- * Bull. Torrey Bot. Club, xlii. (1915) pp. 9-10 (figs.), 

 t Bull. Torrey Bot. Club, xlii. (1915) pp. 1-8 (1 pi.). 

 t Bull. Torrey Bot. Club, xlii. (1915) pp. 93-110 (1 pi.). 



§ Hedwigia, lv. (1914) pp. 277-9. See also Bot. Centralbl., cxxviii. (1915) p. 50. 

 || Joum. Bot., liii. (1915) pp. 88-90. 



