670 Proceedings of the Royal Irish Academy. 



Sectioh" III. Anthoceeotace^. 



Tribe 2. Anthocekote^. 



Akthoceeos, Micheli. 



Anthoceros, Mich. ISToy. Gen. p. 10, tab. 7 (1729). Corypta, JS'eck. 

 Elem. Bot. 3, p. 344, n. 1758 (1790). Cai-poceros, Dum. Comm. 

 Bot. p. 76 (1823). 



Colesule tubular. Capsule filiform, bivalyed, Yrlth a free central pla- 

 centa, exserted. Elaters articulated, flexuose, without spores or 

 spores imperfect. Antheridia dorsal, sessile in a cup-shaped 

 involucre. 



1. Anthoceros ptmctatus, Linn. Paroecious. Frond orbicular, radiate^ 



lacerate, with immersed gemmae in its substance, margins pli- 

 cate, crenate, papillose on the surface, nerveless. Colesule erect^ 

 cylindi'ical, mouth truncate. 



Anthoceros punctatus, Linn. Sp. PL 1606 ; Lindenb. Hepat. Eur.^ 

 p. 113; Sm. Engl. Bot., t. 1537; Is^ees, Eur. Leberm. 4, p. 338 ; 

 G. L. et jS". Synop. Hepat. 583 ; Eabenhor. Hepat. Eur. exsic. 

 n. 64, 462, 484. 



Hab. "Wet places, by the sides of streams, and on ditch banks. 

 Glendoon, Co. Antrim ; Kelly's Glen, Co. Dublin. Sugar Loaf 

 Mountain, Co. of Wicklow, Dr. E. Perceval Wright ; but not com- 

 mon in the northern or eastern counties of Ireland. Frequent 

 in the counties of Kerry and Cork. 



This remarkable genus among the Hepaticee is easily recognised when 

 found in fruit, but when not in a fruiting state, the species may 

 readily be passed over for states of Pellia. Erom most of the 

 Marchantiacese the fronds may be distinguished with the aid of a 

 lens, by the absence of true pores on their surface. 



2. Anthoceros Icevis (Dill), L. Dioecious, (Lindb.) Erond deep green, 



smooth on surface, nerveless, subradiate. Colesule broad, sca- 

 rious. 

 Anthoceros Icevis, Linn. Sp. PI. 1606 ; Lindenb. Hepat. Eur. p. 112 ; 

 JSTees, Europ. Leber, 4, p. 329 ; G. L. etN. Synop. Hepat. p. 586 ; 

 Eabenhor. Hep. Eur. exsic. n. 64, 462, 484. 



Hab. On clay banks, &c. On a wet clay bank, by the roadside lead- 

 ing from Dingle to Ventry, left-hand side of road, about a mile 

 and a-half from Ventry. This species was collected in consi- 

 derable abundance by Dr. Lindberg and myself, in July, 1873, 

 when it was in fine fruit. I am not aware of it having been 

 observed elsewhere in Ireland up to the present time. 



