156 HEPATIC^. 



■05 mm. X "03 mm. ; bracts 1* mm. x "35 mm., seg. '6 mm., 8 mm., 

 12 mm. X "35 mm., seg. '(3 mm., 9 mm., bracteole '85 mm. x 

 ■4 mm., seg. '6 mm., 1* mm. x '4 mm. ; pistillidia -125 mm. x 

 •04 mm. ; perigonial bract -275 mm. x '2 mm. ; explanate, seg. 

 •075 mm. 



Hab. — Among Playiotheciiim Borrericumm, Spruce, on banks, 

 Killarney, Dr. David Moore, 1865. Killarney, Mr. Reginald W. 

 ^cnlhj, 1889. 



Obs. — Specimens were sent by Dr. David Moore to Dr. 

 Carrington in 1865 as Jmig. connkens, who, recognising it as 

 distinct from that species, brought it under the notice of Dr. 

 Gottsche of Altona. He referred it doubtfully to Jung, cra-m folia ^ 

 Lindenb. & Gottsch.. It would probably have remained unrecorded 

 until fertile plants were found, had not a fragment of Moore's 

 specimen been forwarded to Dr. Spruce, who at once referred it to 

 CepJialozia crassifolia {\j. & G.); since then he received further 

 specimens from Killarney, collected in 1889 by Mr. Reginald 

 Scully, and wrote to me some time before his death, that he 

 was inclined to consider the species distinct, and proposed the 

 MS. name of Cephahzia hihernica. I feel doubtful until fertile 

 specimens have been found whether it can be separated from 

 Ceph. crassifolia. In any case it is a distinct addition to our 

 Flora. 



There is a strong resemblance in habit, texture, and structure 

 of this plant to the genus Zoopsis, its plano-convex stem, with the 

 band of small cells running through it, giving it a vertebrate 

 appearance, its remarkably plane leaves, the cells of which cross 

 the stem unaltered. It is not difficult to trace the transition from 

 the apparent simple ribbon-like frond of Zoopsis argentea (Tayl.) 

 through Z. seffdosa Leitg., with its claw-like leaves, to the more 

 perfect leaf form of Z. Leifgehiaua C. & P. and so to the distinctly 

 foliose Cep)lialozia crassifolia and Ceph. hihernica. 



It is distinguished from its nearest ally, Ceph. connive^is 

 (Dicks.) by its dioicous inflorescence, the longer segments of its 

 leaves, which are composed of 2-4 single long cells, and other 

 characters. 



I 



