190 BEV. J, M. CROMBIE ON LICHEKS 



006 



lescenti-nigricantia, paraphyses mediocres, hypothecium incolor. Iodo 

 gelatina hyraenialis intensive et persistenter cserulescens. 

 Affinis L. plana Lehm., a qua differt thallo albo, sporis majoribus et 

 spermatiis brevioribus (haec longit. 0*007-0*008 millim., crassit. 



O-0007-O-OO08 millim.). Thallus K-, I-. 

 On rocks. Observatory Bay. 



Very sparingly gathered. 



Lecidea sincerula, Nyl. Est L. Dicksonii Ach., thallo typico 

 cinereo (nee ferro tincto). Sporae longit. 0*009-0*012 millim., crassit. 

 0*006-0*007 millim. Iodo gelatina hymenialis cserulescens, dein vi- 

 nose rubescens. 



On rocks. Royal Sound. 



Sparingly. 



L. sincerula, f. Dicksonii {Ach.'), 

 On rocks. Swain's Bay. 



Associated with other lichens, and but sparingly seen. 



L. tristiuscula, Nyl., sp.n. Thallus fusco-cinerascens tenuis rugu- 

 losus determinatus, passim subrimulosus ; apothecia nigra opaca 

 superficialia plana marginata subrugulosa (latit. circiter 0*5 millim.), 

 margine subcrenulato-ruguloso ; sporse 8nae fuscae ellipsoidese 1-sep- 

 tatae (juniores placodinae), longit. 0*01 8-0*024 millim., crassit. 0*010- 

 0*011 millim., epithecium luteo-fuscescens, paraphyses gracilescentes, 

 hypothecium incolor, perithecium nigrum. Iodo gelatina hymenialis 

 cserulescens, deinde subvinose rubescens vel subfulvescens. 



Species est e stirpe Lecidea spuria et fofsan L. subtristis, Nyl., sit 

 maxime atfinis. Spermogonia arthrosterigmatibus pauciarticulatis et 

 spermatiis brevibus tenellis. 



On rocks. Swain's Bay. 



Associated with JPertusaria cineraria. Very sparingly seen. 



L. myriocarpa (DC), Nyl. A state with the thallus thin or 



evanescent. 

 On rocks. Swain's Bay. 



Very sparingly gathered. 



* 



L. myriocarpa, f.ERUMPENS. Thallus very thin. Apothecia erumpent. 

 On dead stems. Observatory Bay. 



Associated with Lecanora elegans, f. lucens, and L. umbrina. 

 Only a single specimen seen. 



L. subplicata, Nyl., sp.n. Thallus obsoletus; apothecia nigra 

 plana elevato-marginata, margine tumidulo demum aliquoties sub- 

 lobato-crenato, inde subangulosa et demum subgyrosa ; sporae fuscse 

 l-sentata. lonffit. 0*016-0*019 millim., crassit. 0008-0010 millim., 



