COLLECTED AT THE CAPE OF GOOD HOPE. 177 



Lecidea leucoxantha, Spr. Apothecia biatorina K+(chrysopha- 

 nice reagentia). Forsan melius Lecanora ; nam spermogonia habent 

 arthrosterigmata breviarticulata, spermatiis bacilliformibus (longit. 

 0003 millim., crassit. 0*0005 millim.). 



On the bark of trees ; only a single fragment gathered. 



L. bumamma, NyL, sp. n. Thallus albidus, bullato-vesiculosus, bull is 

 subplicatis, aggregatus (altit. cum basi 6-8 millim.), basi fusco-stipi- 

 tatus; apothecia nigra plana innata immarginata (latit. 1 millim. vel 

 minora), saepe in depressionibus thalli oblonga, intus obscura ; sporae 

 non visae. 



Thallus K+(flavens). E stirpe est haec species L. vesicularis, jam bullis 

 thallinis magnis (latit. 3-5 millim.) insignis. 



On the ground ; very sparingly gathered. 



L. PARASEMA, Var. ELJEOCHROMA, Ach. 



On the bark of trees, usually associated with other lichens. 



L. granulosula, Nyl., sp. n. Quasi L. enteroleuca (Ach.), Nyl., 

 praecipue differens thallo flavido minute granuloso vel subleproso. 

 Apothecia convexula non marginata (latit. 0*4-0*5 millim.), intus tota 

 albida; sporae ellipsoideae, longit. 0*009-0*011 millim., crassit. 0006 

 millim.; epithecium caerulescenti-nigricans ; paraphyses gracileseen- 

 tes ; hypothecium incolor. Iodo gelatina hymenialis caerulescens, dein 

 vinose fulvescens. 



On rocks, associated with various other lichens. 



L. meiospora, Nyl. Obs. Lich. Pyr. Or. p. 38. Spores 001 1-0*01 4 



millim. long, 0*007-0-008 millim. thick. 

 On rocks (schistose) ; sparingly seen. 



* 



L. terrena, Nyl. Thallus albidus, tenuis, snbgranulatus ; apothecia 

 mediocria (lat. 0*7-1*4 millim,), epithecio caesio-pruinoso; sporae 



o 



006-0 



On the ground amongst quartz detritus, sparingly. 



L. obumbrata, Nyl., sp. n, Thallus umbrino-fuscus subopacus, sat 

 tenuis (crassit. 0*5 millim. vel tenuior), areolato-rimosus, determinatus 

 (medulla K e flavo subcinnabarino-tincta) ; apothecia nigra, plana vel 

 convexiuscula (latit. 1 millim. vel minora), immarginata, intus cine- 

 rascentia; sporae 8nae, oblongae, simplices, longit. circiter 0*011 

 millim., crassit. 0*004 millim. (rite evolutae vix visae); paraphyses 

 mediocres; epithecium fuscum ; hypothecium subincolor. 



This species probably belongs to the section of L. tenebrosa, 

 though in consequence of the spcrmogones being unknown this is 

 uncertain. 



On rocks, very sparingly associate^ with other lichens. 



r2 



