170 MISSION DU CAP HORS. 



Lacinise thaï li use Lepolichenis coccophori angustse, semicylindrico-con- 

 vexse, dense subdichotome ramosse, ob rhizinas faciei inferse evidenter 

 thallo foliaceo, nec dendroideo sunt adscribendae, at demum nodulo- 

 rum thallinorum frequentia fere obtecta? et minus perspicuse sunt. 

 Noduli apotheciigeri lseves aut varie gibboso-coronati. Sporœsimplices, 

 nec 4-Ioculares. 



Trib. XVI. DERMATOCARPE.E. 



84. Dermatocarpon nigrum Mùller Arg. 



Tballus centro rbizinis brevissimispaucis at'fixus, orbicularis, subre- 

 gularis, totusnigerv. fusco-atramentaceo-niger, utraque facie concolor, 

 supra laevis et nudus, subtus bullato-gibbosus, intus vix pallidior; apo- 

 thecia et spermogonia in thallo inclusa, in facie supera haud rccognos- 

 cenda, globosa; parapbyses haud distinctse; sporse in ascis obovoideis 

 8-ii8e(hyalinse etsimplices), globoso-ellipsoideae, io^-i iHongse et6' x -8' x 

 latte. — Species tenella, colore et minutie partium insignita. Gonidia 

 primo intuitu vera, qualia antea (Pyrenoc. cubens., p. 375) pro Dermato- 

 carpeis indicavi, se. globosa et simplicia, membrana distincta prsedita, 

 sed mox distant in eo quod raro tantum regulariter sphserica, ssepius 

 paullooblonga et nonnihil obtuse angulosaetirregularia, et dein atten- 

 tius inspecta occurrunt geminatim connata, conjuncta œqualia aut inse- 

 qualia et demum rarius 3-4-natim una série juncta et ingequalia, unde 

 clare pro valde depauperato-chroolepoideis habenda sunt. Omnino 

 similia etiam in speciebuseuropseis occurrunt. Spermatiavisa/j'Monga, 

 elongato-ellipsoidea. 



Ad saxa maritima cum Algis marinis et Verrucariis maie evolutis in 

 insula Gordon, Terre de Feu (Hariot). 



Trib. XVII. PYRENULEiE. 



85. Pleurotrema leptosporum Mùller Arg. 



Thallus hypophlœodes, macula pallida indicatus; apothecia atra, 

 semi-immersa, parte emersa orbicularia aut paullo oblonga, 2 mm -4 mm 



