DIE LEBERMOOSE DEUTSCHLANDS 349 



Lei'TODONTIum recurvifolium (Tayl.) Lindb. in England.— 

 During a fortnight's stay in the Lake District in August and 

 September I was fortunate in finding a few stems of this moss by 

 a small cascade below Euthwaite Cove, Helvellyn, v.-c. 69. Care- 

 ful search in the neighbourhood during the next two days entirely 

 failed to discover any extension of its range. It is especially 

 interesting to have this plant recorded from England, as it is one 

 of our few genuinely endemic mosses, and has been found up to 

 now only in Scotland, Wales, and S.W. Ireland, its distribution 

 being of an entirely western or Atlantic type. I also gathered 

 Grimmia retracta Stirl. on the Cumberland side of Ullswater, a 

 record for v.-c. 70 ; Wehera inoUgera Bryhn on Striding Edge, a 

 record for v.-c. 69 ; Thuidinm delicatulum Mitt, in Grisedale, 

 Helvellyn ; and Dicranum Starkei Web. & Mohr on Kidsty Pike, 

 Westmorland, which although recorded from v.-c. 69 must I 

 think, be extremely rare in this district. — H. N. Dixon. 



Aplozia rivularis Schiffner. — In Lotos (Band 59, Heft 1-3 

 (1911) ) Prof. Schiffner raises to the rank of a species his Ai)lozia 

 immila var. rivularis, a plant found in several places on the Con- 

 tinent. Early this month I found this on wet dripping shaley 

 rocks at Woodhead, Derbyshire. I have submitted specimens to 

 Prof. Schiffner who writes : " I have carefully examined your 

 specimens and have found antheridia, so it is without doubt my 

 Aplozia rivularis. The discovery of this rare plant in England 

 is very interesting. I shall be glad if you can supply me with a 

 set of this plant for my ' Hep. eur. exs.' The English specimens are 

 very characteristic." A. rivularis agrees in habit with A. riixtria, 

 but is distinguished from it by its paroicous inflorescence. From 

 A. pumila it differs by its different habit, much larger size, larger 

 leaf-cells, the very large, different shaped perianth and other 

 characters, as pointed out by Prof. Schiffner. — W. H. Pearson. 



REVIEWS. 



Die Lebermoose Deutschlands, QjJsterreichs und der Schweiz mit 



Beriicksiclitirjumj der ilhrujen Lander Europas. By Dr. 



Karl Muller. Leipzig: Kummer. 1906-11. Abteilung 



i. pp., vii, 871. 363 text figs, by P. Janzen. Price m. 33-60. 



This volume forms part of Kabenhorst's Kryptogamen-Elora, 



the second edition of which in bulk and importance is an immense 



advance upon its modest forerunner, and consists of a series of 



thick and imposing volumes by such competent authorities as 



Luerssen (Ferns), Limpricht (Mosses), Migula {Characea), Hauck 



(Algce), Winter, Eehm, Fischer, Allescher, and Lindau (Fungi). 



The only group of cryptogams which does not appear to have 



been arranged for is the Lichens, despite the imperative need for 



a comprehensive monograph of the Lichens of Central Europe. 



Badly needed also was a modern and trustworthy monograph of 



the HejKiticce till Dr. Karl Muller, of Freiburg, took the present 



treatise in hand. The standard of these monographs is high ; the 



work is deep, sound, and original ; the illustrations in tlie text are 



