26 The Irish Naturalist. [Februar)-, 



Lophocolea bidentata, Linn.— On damp banks and on decayed 

 wood; common — Lett and M'A., 1899. 



Plai^iochila asplenloides, Linn. — On damp banks— Lett and M'A., 

 1899. 

 var. humflfs, Lindenb.— Shoots attentuated ; leaves ovate, entire, 



obtuse or einargiuate. On a damp bank— D. M'A., 1893. 

 var. devexa, Carriiigton. — Shoots compressed, circinate at apex, li- 

 inches long, furcate ; leaves secund, roundish, cili'ite-dentate, closely 

 imbricate, erect, dorsal margin straight, recurved, ventral projecting 

 backward so as to form a crest with the opposite leaves. On shady 

 banks close to lake — D. M'A., 1893. 

 var. minor, Carrington, — Shoots \ to \\ inches long, apex decurvedj 

 caespitose ; leaves erecto-patent, sub-secund, roundish, margin 

 reflexed, ciliately toothed, entire or emargiuate — Lett and M'A , 

 1899. 



Plag^iochila splnulosa, Dicks. — On shady banks; common — Lett 

 and M'A.. 1S99. 



Pellia epiphylla, Linn. -Common on damp banks— Lett and M'A., 

 T899. 



IVIetzg'eria furcata, Linn. — On the trunks of trees ; common — D. M.A., 

 1893 ; Lett and M'A , 1899. 



IVIetzgcria conjugata, Lindberg. — On trees; fertile— D. M'A., 1893; 

 Lett and M'A , 1899. DijBfers from all the known species by its 

 monoecious inflorescence. See M'Ardle " On the Musci and Hepaticas 

 of the Co. Cavan." Proc. R.I.A.^ ser. 3, vol. iv., 1898, plate 22. 



Riccardia multifida, Linn., Dill, — In boggy places; common - 

 D. M'A., 1893. 



Lunularia cruciata, Linn.— On wall-tops, banks, and on the path- 

 ways— D. M'A,, 1893. 



Conoccphalus conlcus, Linn. --On banks and rocks near the quay — 

 D. M'A., 1893. 



Description of Pi,ate i. 

 Lejeiinea RosscUiana. 

 Perianth and capsule, x 100. 

 Portion of stem and leaves, x 100. 

 Capsule showing dehiscence and the hygroscopic 



cilia, X 250. 

 One of the mother-spores, x 200. 

 Elaters attached to spores, x 250. 

 Spores fully developed, x 250. 



Royal Botanic Gardens, Glasnevin. 



