406 88. Cornicul. 3. HOMOTHALAMEiE. Pl.cell.aph. 
6. Cornicularia P pitlescens. Downy horn-moss. 
Thailus lying down, cylindrical, wrinkled, ronghisb, 
black; branches interwoven, hairlike, twigs not branched ; 
apothecia same colour as the thailus, edge not cut. 
Lichen lanatus, Wulf. inJacq. Misc. 2. 
Lichen intricatus, Ehrh. Crypt. 8,80. 
Lichen pubescens, Lin. S. P. 1628. 
XJsnea intricata, Hojffm. Germ. 136. 
Cornicularia pubescens, Achar. Meth. Lich. 505 ; Lich. Univ. 616. 
Conferva? atrovirens, Dillw. Conf. 25. 
Scyfonerna? atrovirens, Agardh Disp. 39. 
On rocks and fells where water drips. 
Thalli aggregate, very similar to the preceding; apothecia 
rarely to be found ; so that it is doubtful whether this and 
girardia atrovirens be one species or two. 
/3. hispidula. Thailus rather stellate, brownish black, 
proliferous in whirls, hispid, branchy; branches slightly 
radiating, depressed, interwoven, very thin ; apothecia 
crenate, dark brown. 
Scytonema atrovirens prolifera, Agardh Disp. 39. 
Cornicularia hispidula, Achar. Lich. Univ. 617. 
X. 89. RAMALINA. Acharius. Branch-moss. 
Thailus cartilaginous, inside like tow, rather solid, 
branched, jagged, rather shrublike, mostly with soredia; 
apothecia saucershape, thickish,footstalked,somewhatshield- 
like, flat, edged, entirely formed of the thailus, covered with 
u similarly coloured cortical substance. 
1. Ramalina fastigiata. Even-topped branch-moss. 
Thailus compressed, cylindrical, smooth, pitted, branched, 
light sea-green ; branches thicker at top, even-topped; 
apothecia terminal, shieldlike, sessile, whitish. 
Lichen populinus, Ehrh. Crypt. 276. 
Lichen fastigiatus, Engl. Uot. 890. 
Lobaria populina, Hoffm. Germ. 140. 
Parmelia fastigiata, Achar. Meth. Lich. 260. 
Ramalina fastigiata, Achar. Lich. Univ. 603. 
On the trunks of old trees. 
2. Ramalina scopulorum. Sea-shore branch-moss. 
Thailus compressed, smooth, slightly pitted, branched, 
pale grey; branches linear, slender; apothecia pedicelled, 
of the same colour. 
Lichen calicaris, Lin. S. P. 1613 ; Engl. Bot. 688. 
Lichen scopulorum, Dicks. Crypt. 3, 18. 
Parmelia scopulorum, Achar. Meth. Lich. 261. 
Ramalina scopulorum, Achar. Lich. Univ. 604. 
On rocks by the sea-side. 
