198 SUMMARY OF CURRENT RESEARCHES RELATING TO 



In the limestone of Cong is the Pigeon Hole cave ; here Lejeunea MacTcaii 

 grows plentifully; here also are found Wurhynchium pumilum, E. Tees- 

 dalei and E. tenellum. At Curranamona a small quantity of Andrecea 

 crassinervia was collected. The moss flora is often poorly developed in 

 the district. H. W. Lett* points out that Polytrkhum attenuatum \< 

 not rare in Ireland, as 1). McArdle has stated, but is abundant in Co. 

 Down, and has been found in eleven other Irish counties. 



North American Muscinese. — C. C. Haynesf concludes her account 

 of the species of Lophozia of the United States, selected from the 

 writings of A. W. Evans, but illustrated by herself. G. E.Nichols J 

 gives a list with synonymy of the five species of Amblystegiella found 

 in the United States, and supplies an account of the history of the genus. 

 J. M. Holzinger§ explains the series of errors which have been made 

 by authors over the moss now designated Homalotheciella subcapillata 

 Card., and shows why the name Burnettia has to be dropped. A. Lorenz || 

 publishes some illustrated notes on Radula tenax Lindb., which has 

 never previously been figured. It occurs in New Hampshire, Massa- 

 chusetts, and Connecticut. 



Parisian Species of Philonotis.^f — G. Dismier has revised the 

 species of Philonotis found in the environs of Paris, and shows that, 

 whereas three species only of this difficult genus, P. fontana, P. calcarea, 

 and P. marchica, have been recorded as occurring there, in reality two 

 other species, P. ccespitosa and P. capillaris, also occur. Further, 

 P. marchica really does grow in the district, though all previous records 

 of it are shown to be false. This species has often been confounded 

 with others, especially with P. fontana and P. cmspitosa. It differs in 

 having its leaves shaped like an elongated isosceles triangle with curvi- 

 linear sides, concave at base, not plicate, carinate, with margins flat, and 

 bearing sharp teeth along the whole length, with cells always papillate 

 •on their upper angles, with tissue translucent, and nerve thin throughout. 

 He says that P. cozspitosa does not seem to have become sufficiently well 

 known hitherto ; its principal distinguishing characters are that the 

 tufts are but little radicelliferous, the stems are slender, the leaves 

 relatively large, homotropous (a rarely absent character), falcate, flat 

 (not plicate), with tissue translucent, and often composed of square or 

 rather long rectangular cells. The lower leaves of sterile plants should 

 always be examined, since the upper leaves and those of male stems are 

 nearly always misleading ; hence the bad naming of many specimens. 



New Species of Sphagnum.** — C. Warnstorf begins a paper on new 

 European and extra European Sphagna, in which he gives descriptions 

 of 27 species of Sphagnum, belonging to the cymuifolium, subsecundum, 

 mucronatum, acutifolium, and cuspidatum groups. The descriptions are 

 detailed and are in some species supplemented by figures. 



* Irish Naturalist, xvi. (1907) p. 348. 



t Bryologist, xi. (1908) pp. 1-3 (1 pi.). % Tom. cit., pp. 4-5. 



§ Tom. cit., p. 7. || Tom. cit., p. 9. 



i Bull. Soc. Bot. France, liv. (1907) pp. 196-200. 



** Hedwigia, xlvii. (1907-8) pp. 76-124. 



