92 BK1T1SH DESM1DIACEJE. 



bridgesbire ! Middlesex ! Surrey ! Sussex ! Kent ! 

 Hants! Gloucestershire! Devon! Cornwall! (Marquand). 



WALES. General, but never abundant ! 



SCOTLAND. Abundant ! (R>oy fy Bissett). We find 

 it general but certainly not abundant. 



IRELAND.- -General ! 



Geogr. Distribution - -France. Germany. Austria 

 (and Galicia). Hungary. Italy. Norway. Sweden. 

 Denmark. Bornliolm. Finland. Poland. Lapland. 

 N., Central, and S. Russia. Faeroes. Iceland. Nova 

 Zembla. Greenland. Siberia. Mongolia. China. 



o 



Central China (form). Japan. India. Ceylon. 

 Siam. Chatham Island. New Zealand. Madagascar. 

 Central Africa. Azores. United States. Porto Rico. 

 Jamaica. Brazil. Ecuador. Paraguay. Argentina. 

 Patagonia. 



C. Meneghinii is a very widely distributed species, occur- 

 rino- more or less abundant! v in all parts of the world. In 



O *J 1 



its typical form, which was well figured by Ralfs, it is very 

 characteristic, but variations from this type are not un- 

 common, and intermediate forms are sometimes observed 

 between it and C. venustum, 0. impressulum, or C. Iseve. 

 Probably no species has been more overburdened with named 

 varieties and forms than G. NenegliiniL Most of these 

 "varieties/' however, have during recent years been shown 

 to belong elsewhere. In the present work we have only 

 retained one form (f. latinscula] and one variety (var. nanum] , 

 and we are even inclined to think that the latter would be 

 best placed elsewhere. 



C. Braunii (Reinsch) Wolle (=Didymidium Brctunii 

 Reinsch) was a name given by Reinsch to a species-group 

 which included Brebisson's G. Menegliinii and a number of 

 allied forms. Reinsclr's name (1867) is not tenable ; he should 

 have retained the older name " Meneghinii ' ' (1848). 



We have transferred Wille's "forma octangularis ' to C. 

 Iseve, to which species it seems more rightly to belong. 



Xordstedt has mentioned a trisfoiial form from Finsho. 



O ' 



Norway (vide Nordst. ' Norges Desm. ; 1873, p. 21). 



Forma latiuscula Jacobs. 



C. Heneghinii as figured by De Bary, Conj. 1858, p. 38 et seq., t. 6, 

 f. 33-4(3. 



