304 THE JOURNAL OF BOTANY 



Verrucaria Dufourii DC. B U. Frequent on Serpentine. — 

 V. maura Wahl. 0, L, U. On both Archaean rocks and Serpen- 

 tine. — V. muralis Ach. 0, U. — F. nigrescens Pers. U. On both 

 Archaean rocks and Serpentine. 



Dermatocarpon aquaticum A. Zahlbr. (Endocarpon flumatile 

 DC). CF to BE. At the edge of a lakelet in the bed of a 

 stream. 



Sphcerophorus coralloides Pers. 0, N U, C F, B H, H, S U, 

 B U. On Serpentine. — S. compressus Ach. S U, B H, N U, 0. 



Arthonia varians Nyl. B U. 



Opegrapha atra Pers. L. On Acer and Salix. B U. On 

 Acer. — 0. coiifluens Stiz. 0, BH, B U. — 0. saxicola Ach. U, Sc. 



Lecidea albocwnilescens Ach. B H, N-iv U. — L. auriculata 

 Th. Fr. var. diducens Nyl. 0. — L. confluens Ach. N-io U, 0. — 

 L. contigua Fr. 0, B U, B H, H. — Var. calcarea Leight. U, L. 

 — Var. platycarpa Fr. U. — L, crustulata Koerb. S U, C F to 

 B H. — L. Dicksonii Nyl. B H. — L. dubia Hook. L. On Acer. 

 U. — L.fuliginosa Tayl. U. — L. goniophila Schaer. B U, N-io U. 

 — L. griseoatra Schaer. U. — L. jurana Schg^er. N U, S U. — 

 L. Kochiana Hepp. N-tv U, B H. — L. lactea Floerke. B U, 

 B H, NU, S U, L. — L. lapicida Ach. 0, B H. — L. latypea Ach. 

 0, N-iu U, B U. On Serpentine. — L. Uthophila Ach. B U. — 

 L. parasema Ach. B U. On Acer. — Var. elceochroma Ach. L. 

 On Acer. — L. plana Nyl. 0, C F to B H. — L. protrusa Fr. B U. 

 — L. rivulosa Ach. N U, S U, 0, BH, L to Sc, G F. — L. sorediza 

 Nyl. B U. — L. subumbonella Lamy. 0. 



Bacidia inundata Koerb. U. 



Bhizocarpon confervoides DC. to H, U. — B. geographicum 

 DC. NU, 0, B H.—B. (Ederi Koerb. O.—B. petrceum Massal. 

 0,BH, B U. Both on Archaean rocks and Serpentine. 



Pycnothelia papillaria Duf. U. 



Cladonia asperella Cromb. L, Sc, U. — C. cervicornis Schaer. 

 C F, 0, B H, U. On Serpentine. — C. coccifera Schaer. 0, N U, 

 Sc, H, B U. — Subsp. C. pletirota Cromb. B U. — Var. frondescens 

 Harm. U. — C. crispata Nyl. U, 0, Sc. — Var. cetrariceformis 

 Wain. L.—C. digitata Hoffm. BH, NU, 0, B U.—C. fimbriata 

 Fr. L, N U, B H, 0, B U. — Var. subcormUa Nyl. f. nemoxyna 

 Coem. 0. — Var. tubcBformis Wain. B H, Sc, 0. — C. furcata 

 Hoffm. B H, Sc, 0, U. Sometimes on Serpentine. — Yar.palavicsa 

 Nyl. B H, 0. — Var. corymbosa Nyl. B H. — Var. racemosa Flk. 

 to H. — f. subulata Flk. S U, N-iv U. — Var. scabriuscula Coem. 

 B U. On Serpentine. — C. gracilis Hoffm. 0. — Var. gracillima 

 Norrl. B H. — f. subulata Hsmn. BH. — C. macilenta Hoff'm. 

 L, U, to H. — C. pungens Floerke. 0, U. — Subsp. C. muricata 

 Cromb. U. On Serpentine. — C. pyxidata Fr. B U, N-iu U, 

 S-w U, B H, O.—C. squamosa Hoffm. L, 0, B H, U, Sc.—t tur- 

 facea Wain. U, BH. — 0. verticillata Floerke f. evoluta Wain. 

 0, Sc, NU, CF,BH,BU. 



Cladina amaurocrcea Nyl. B U. — C. rangiferina Nyl. 0. — 

 C. sylvatica Nyl. N U, SU, 0, B H. Spermogoniiferous from 

 both Unst and Ollaberry. — f . lacerata Nyl. U. — f . near var. 



