50 
(Parmelia) 
271. P. Mougeotii Schaer. En. p. 46. — Supra saxa 
duriora in Port Natal: Armstrong-Mackenzie et Angola: 
Welwitsch. — Europ., Amer, austr. 
272. P. adhaerens Nyl. in Cromb. Cap. p. 168. — Supra 
saxa quartzosa in Monte Tabulari: Eaton. — Endem. 
273. P. interrupta. Thallus sulfureus arcte adnatus 
in hypothallo nigro, centro areolatodiffractus, areolis con¬ 
tiguis convexis, ambitu laciniatus, laciniis angustis planius- 
culis subdichotom odi visis, K+ flavens. Apothecia lecanorina 
versus areolarum marginem sita, latit. 0 , 3-1 mm, plana vel 
subconvexa, margine thallino tenui integro demum evanes¬ 
cente, disco nigrofusco. Epithecium fuscum, hypothecium in¬ 
color, paraphyses coalitae; sporae octonae simplices elongato- 
ellipticae longit. 0, 014-15 mm, crassit. 0, 005-6 mm; gelatina hyme- 
nea iodo intense ccerulescens. Spermogonia crebra in thalli 
areolis, nigra, spermatia minutissima. Forte P. aclhcerenti affinis, 
sporis majoribus, spermatiis minoribus et thalli reactione a 
congeneribus satis diversa. — Saxicola prope pagum Ceres 
in montibus Warine Bokkeveld Africae australis: MacOwan. 
— Endem. 
274. P. squamariata Nyl. 1. c. p.169 unacum f. cine- 
rascente Nyl. 1. c. — Saxicola in Monte Tabulari: Eaton. 
— Endem. 
275. P. convexula Muli. Diagn. Soc. p. 3. — Quart- 
zicola in insula Socotra: Balfour, Schweinfurth. — Endem. 
276. P. perplexa. Thallus nigrofuscus subopacus ad¬ 
natus, centro granulato - areolatus, ambitu dilutior pallide 
olivaceus immo sordide stramineus vel ochroleucus, lacinilatus, 
laciniis angustis convexis pedatim divisis crenulatis. Apo¬ 
thecia majora latit. 0 , 5-2 mm, primum concava margine 
ochroleuco crenulato dein plana margine flexuoso tenuissimo, 
disco nigrofusco. Epithecium luteofuscum, paraphyses coa- 
