Moore — On Irish ITepaticcc, 661 



PossoiTBEoxiA, Eaddi. 



•/imgermaimia, Mich. Kor. pi. gen. p. 7, n. 1, tab. 5, fig. 10 (1721); 

 Linn. Sp. PI. 1 ed., 2, p. 1136, n. 27 (1753) ; Schmid, Ic. PI. 9 

 ed., pp. 82-87, tab. 22 (1762) ; Hook. Brit. Junger. 1816. Pos- 

 sombronia, Eaddi in Att. Soc. llodena, 18, p. 40 (1818) ; Lindb. 

 in mt. Soc. P. PL Penn. 13, pp. 380-389, tab. 1, fig. 1-6 (1874). 

 Manrocenia, B. Gr. in Gray's JiTat. Arr. Brit. pi. 1, p. 687, n. 14 

 (1821). 



Leaves succubous, distichous, quadrately lobed, thin and flaccid. 

 Amphigastria wanting. Colesule mostly lateral, companulate, 

 mouth large and open, lobed at the margin. Platers with two to 

 three spires. Capsule irregularly 4-valved. Antheridia naked, 

 on the under side of the stem. 



1. Fossoynlronia pusilla (lAmi.), !N'ees. Heteroecious. "Stems scat- 



tered or in tufts, short, and compact. Leaves close together and 

 frond-like, irregularly quadi'ate, twice or thrice cleft on the 

 margin. Colesule large, wide-mouthed, waved and cut at the 

 margin. Spores slightly reticulated." — Lindberg. 

 Jungermannia pusilla, Linn. Sp. PL, p. 1603 ; Hook. Brit. Jung. t. 69; 

 Pngl. Bot. t. 1775 ; De I^^tar., Prim. Hep. Ital. p. 24; Taylor, 

 in PL Hib. 2, p. 61. Possombronia pusilla, Dumort. Plcv. Jung. 

 p. 11; Hep. Purop. p. 14 ; G. L. et iST. Synop. Hep. p. 467 ; 

 Eabenhor. Hep. Europ. essic. n. 8, 122, 488 ; Cooke, Brit. Hepat. 

 p. 22, fig. 164 ; Lindberg, Manipulus llusc. secund., p. 384, tab. 1, 

 fig. 5. 



Hab. On moist clayey soil where water frequently stands. On the 

 shores of lakes, Island of Bathlin, Antiim ; near Dingle, Kerry. 



2. Fossomlronia angidosa (Mich. Dicks.), Eaddi. Dioecious. Stems 



forming large, close, frond-like patches, or scattered, clothed with 

 roots on the under surface. Leaves horizontal, quadrate, bluntly 

 cut or lobed on their margins into angular teeth. Colesule 

 lateral, mouth plaited and undulate, subdenticulate. Spores 

 large, reticulate. 



Jungermannia angulosa, Dicks. Pasc. PL Crypt. Brit. 1, p. 7 ; Eaddi 

 in Att. Soc. Sc. Modena, 18, p. 40, excL synon. Eoth. and var. 

 y8. ; G. L. etlvT. Synop. Hep. p. 468 ; Carring. in Trans. Bot. Soc. 

 Edinb. 3, p. 443 ; Lindberg, Manipulus Muse, secund., p. 383, 

 tab. 1, fig. 3. 



Hab. On damp earth and fissures of rocks ; generally near the sea. 

 Abundant and very fine at Dingle Bay, and on cliffs near the sea 

 between Dingle and Ventry, Kerry. Eoss Bay, Dr. Carrington. 



Pallaviciuxa., Bennett, Gray. 



Jungermannia, Hook. Brit. Junger. tab. 77 (1816); Lindenb. Synop. 

 Hep. Pallavicinia, B. Gray, in Gray's Arr. Br. PL 1, p. 775 (1821). 



