A HISTORY OF NOTTINGHAMSHIRE 



common, Aneura is abundant in a quarry at Linby, but Nardia has not 

 recently been found. Four additional species occur in a list of the 

 plants of Sherwood Forest by John Bohler; 1 these are Cephalozia conni'vens, 

 Scapania nemorosa, Blasia pusilla, and Lunularia cruciata. The last-named 

 is one of our commonest liverworts, and it is difficult to account for its 

 omission from the works of Deering, Jowett, and Howitt. During the 

 last five or six years many new species have been found to occur in the 

 county, but many more doubtless remain to be discovered. At best, 

 however, our hepatic-flora cannot be otherwise than a poor one, owing to 

 the absence from the county of the conditions most favourable to the 

 growth of these plants. It is therefore not altogether surprising that of 

 the 220 or so species recorded for the British Islands, we should at present 

 be able to claim only about forty. 



In the list which follows all species to which no observer's name is 

 attached have been collected recently by the present writer, whose 

 specimens have all been examined and their identity certified by Mr. D. 

 McArdle. 





Frullania Tamarisci, Dum. (H. Fisher) 



- dilatata, Dum. 

 Radula complanata, Dum. 

 Porella platyphylla, Lindb. 

 Blepharozia ciliaris, Dum. 

 Lepidozia reptans, Dum. (H. Fisher) 

 Kantia trichomanis, Gr. and B. 

 Cephalozia bicuspid.ita, Dum. 



- connivens, Spruce (Bohler) 



- Sphagni, Spruce (Jowett) 



- divaricata, Dum. (Fisher) 

 Scapania nemorosa, Dum. (Bohler) 

 Diplophyllum albicans, Dum. 

 Lophocolea bidentata, Dum. 



- cuspidata, Limpr. 



- heterophylla, Dum. 

 Chilocyphus polyanthos, Dum. 

 Pedinophyllum interruptum, Lindb. 1 

 Plagiochila asplenioides, Dum. 



var. humilis, Lindenb. 

 Jungermania riparia, Tayl. 



Jungermania inflata, Huds. (Fisher) 



turbinata, Raddi 



f. acutiloba, Spruce (= Jung. corcyracea,Nees) 



capitata, Hook. (Fisher) 



ventricosa, Dicks. 



Nardia scalaris, Gr. and B. (Howitt) 

 Fossombronia pusilla, Dum. (Fishei) 

 Blasia pusilla, L. (Bohler) 

 Pellia epiphylla, Lindb. 



- calycina, Tayl. 

 Aneura multifida, Dum. 



pinguis, Dum. 

 Metzgeria pubescens, Raddi 



- furcata, Dum. 

 Marchantia polymorpha, L. 

 Conocephalus conicus, Dum. 



Reboulia hemisphaerica, Raddi (Deering, Howitt, 



Bohler) Not seen recently 3 

 Lunularia cruciata, Dum. 

 Ricciella fluitans, Braun 



ALGAE 



CHARACEAE (Stonworts) 



The Characeae of Nottinghamshire have not been systematically 

 worked out, and only five species are certainly known to occur in the county. 

 These are Chora fragilis, Desv., which grows in ponds and canals in the 

 magnesian limestone district ; C. contraria, Kuetz., found in a pond at 

 Sutton in Ashfield, and, like the first-named species, now placed on 

 record for the first time ; C. bispida, L., first recorded by Deering, and of 

 rather frequent occurrence ; C. vu/garis, L., also noticed by Deering, and 

 common in canals and ponds, with, occasionally, its variety longibracteata t 



1 In White's Worksop, the Dukery, and Sherwood forest, 1875. 



1 This hepatic, which is rare as a British species, was collected at Creswell Crags, on 17 April, 1899. 



1 Is it possible that the following species (Lunularia cruciata) was meant f 



66 



