610 Proceedings of the Royal Irish Academy. 



39. AmUystegium riparium, Linn. On wet banks, side of a drain, 



Farnham demesne. 



40. Sijpniim cupressiforme, Linn. On trees, walls, and rocks, Killa- 



keen, BaUyhaise, Slieve Glak. 

 Sypnum cupressiforme, L., var.Jiliforme, Br. Eur. On the trunks 

 of trees, Slieve Glah, Killakeen, Ballyhaise woods, very fine 

 and abundant. 



41. Hypnum resupiytatum, Wils., Eng. Bot., t. 1664. Ballyhaise 



woods. (Good authoi'ities consider this to be a var. of S. cupres- 

 siforme.') 



Hepatic-e. 



1. Lunularia cruciata, Linn. (Dumort) = L. vtdyaris, Micheli, nov. 



gen. 4, t. 4. Marchantia cruciata, Linn., Sp. PI., 1604, Car- 

 rington and Pearson, Exicc. Ease. 2, n. 148. Ditch bank, 

 Farnham demesne, near Cavan. 



2. Fndlania dilatata, Linn. (Lumort), Hook, Brit. Jung., tab. 3. 



On the trunks of trees, Killakeen, Farnham, Ballyhaise woods, 

 Slieve Glah (on rocks). 



3. Fndlania tatnarisci, Linn., Sp. PL, ed. 2, p. 1134, Hook, Brit. 



Jung., tab. 6. On the trunks of trees, Ballyhaise woods, Killa- 

 keen, near the summit of Slieve Glah (on rocks). 



4. Frullania germana, Taylor in Trans. Bot. Soc. Edin., vol. 2, p. 43, 



G. L. et jS". Synop. Hepat., p. 450. On the trunks of trees and 

 decayed wood, Ballyhaise, Killakeen, Farnham woods, Slieve 

 Glah, sparingly. 



5. Lejeunea niinutissima, Smith = Lejeunea inconspicua, Raddi, in 



Alt. Soc. Modena, 18, p. 34, t. 5, fig. 2. On the trunks of trees 

 about Farnham amongst Metzgeria, very fine epiphytic on 

 Frullania, and at Killakeen on ILypnum cupressiforme, var.fiU- 

 forme. This was the only Lejeunea collected by me in the 

 Co. Cavan. Plants very miaute, creeping, irregularly branched. 

 Leaves distant, subrotund, complicate almost the whole length, 

 concave, turgid, sub-papillose. Lobule a little narrower than 

 the lobe. Bracts of the perianth twice as long as the leaves, 

 broadly oblong, slightly complicate, very shortly bilobed, pos- 

 tical lobe twice narrower. Perianth exserted, turbinate, pyri- 

 form or compressed, decidedly 5 carinate, papillose, keels with 

 a single row of pellucid cells. Androecia on short, robust 

 branches of from three to five pair of altered leaves or amenta, 

 a little smaller than the normal leaves, monandrous. This is 



