Moore — On Irish Hepaticce. 619 



theca Cordaeana, Dumort. Rev. Jung. 1, p. 11. Lejounea Cor- 

 daeana, iSTees et Mont., in Ann. Sc. Nat. 1836, p. 7. Madotheca 

 porella, ISTees, Eur. Leberm. 3, p. 201 ; Gr. L. et N. Synop. Hepat. 

 p. 281." — Dumort. Hepat. Europ. p. 25 (1874). Cavendishia rivu- 

 laris, Carruth. in Seem. Journ. Bot. 3, p. 301. Porella dentata, 

 Hartm. Lindb. in Acta Societatis Scicntiarum Eennica?, x. 



Hab). On wet stones, near rivulets, &c. Near Fermoy, Co. Cork, T. 

 Chandlee. The only Irish specimens I have seen are those col- 

 lected by T. Chandlee in the locality quoted. They were named 

 , Madotheca rivularis when sent to me, and Professor Lindberg, who 

 examined them in my herbarium, referred them with certainty 

 to Madotheca porella, Nees. 



5. Porella pinnata, L. Stems irregularly pinnate, or subdichotomously 

 branched. Leaves slightly adpressed, ovate-oblong, plane or indis- 

 tinctly decurved at the apex, margin quite entire, lobule minute, 

 plane, not decurved, spreading from the stem. Amphigastria ad- 

 pressed to the stem, slightly decurrent, obtuse-rotundate. 



Porella pinnata, L. Sp. PL 1 ed., 2, p. 1106. Jungermannia porella, 

 Dicks, in Trans. L. Soc. 3, p. 239; Schwsegr. in Linnsea, 13, p. 114. 

 Jung. Cordse, Hiiben. Hep. Germ. p. 291. Madotheca porella, JSTces, 

 Natur. Eur. Leberm. 3, p. 201, n. 6 ; Gr. L. et N. Synop. Hep, 

 p. 281, n. 35. 



Hab. Near Fermoy, Co. Cork, T. Chandlee, Esq. Connor Hill, Co. 

 Xerry, Dr. Lindberg (1873). The only Iidsh specimens I have 

 seen of this plant are those from T. Chandlee, which were sent 

 to me under the name of Madotheca rivularis, but referred un- 

 hesitatingly to Madotheca porella, Nees, by Dr. Lindberg. Not- 

 withstanding the labour bestowed on the genus Porella by Dr. 

 Lindberg (Acta Societatis Scientiarum Eennicae, tom. ix., 1869), 

 I cannot make out clearly the species he refers P. rivularis to. 

 He quotes some of the same authors, namely, Nees, Hiibener, 

 and Carruthers' works, same page and same number to species, as 

 synonyms of his Porella dentata, n. 5, and of his Porella pinnata, 

 n. 6. Not having any specimens of Taylor's Jungermannia 

 rivularis (Trans. Bot. Soc. Edin. 2, p. 16), I am unable to refer 

 it to either of these. Dr. Carrington notices among his Irish 

 Hepaticse (Trans. Bot. Soc. Edin. 7, p. 455), Madotheca porella, 

 Nees, as having been sent to Dr. Gottsche by Dr. Taylor from 

 south of Ireland ; but to which of Lindberg' s species is it refer- 

 able ? 



Sub-tribe 2. PiimEoziEiE. 



Pleueozia, Dumortier. 



Jungermannia, Weiss, PI. Crypt. PI. Gott. p. 123 (1770); Sm. Engl. 

 Bot. tab. 2500 (1813); Hook. Brit. Jung. (1816) ; Hulen. Hep. 



