304 LICHENS OF NOVA SCOTIA—MACKAY, 
55. L. cervina (Pers.) Smf. On boulders, Pictou. 
Gen. XIX.—Ruinopina. Mass. Stitz. 
56. R. sophodes (Ach.), Mass. On bark of trees, North 
Dalhousie, Pictou. Also, 
var. polyspora. (Th. Fr.) Pictou. 
Gen. XX.— PERTUSARIA, D. C. 
57. P. pertusa, Ach. Common ; on bark of trees, Pictou. 
58. P. leioplaca, Ach. Not uncommon; on bark of trees, 
Pictou, Halifax. 
59. P.velata, Turn. Common on bark of trees, Pictou. 
GEN. XXI.—Conotrema, Tuck. 
60. C. wreeolatwm, Tuck. Not rare; on bark of trees (maple) 
Pictou. 
Gen. XXII.—THeELotremA, (Acu.) Eschw. 
61. T.lepadinum, Ach. On all bark of trees, N. Dal., Pic- 
tou. 
TRIB. II. — Lecidiacei. (Fr.) 
FAM. I—CLADONIEI (Zenk., Kbr.) Th, Fr. 
GEN. XXIII.—STEREOCAULON, Scher. 
62. S. tomentosum, Fr. On boulders. P. 
63. SS. corralloides, Fr. On boulders. P. 
64. S. paschale, Lawr. Common; on rocks and boulders. 
Pictou. 
65. S. condensatum (Laur). On granite boulders. P. 
Gen. XXIV.—Craponis4, Hoffm. 
66. C. pyxidata, Fr. On decaying wood. P. 
67. C. fimbriata, Fr. On decaying wood. P. 
var. radiata, Fr. Also. 
68. C. gracilis, Fr. On decaying wood and vegetable mould, 
Pictou and Halifax. 
69. C.turgida, Hoffm. Ona ridge of gravel, called “Boar's 
Back,” Pictou. 
70. C. furcata, Fik, On the ground Pictou, Halifax. 
71. C. squamosa, Hoffm. Very common; on decaying wood 
Pictou. 
Var caspiticia. Decaying wood. P. 
