201 
(Medusula) 
1281. Medusula tricosa (Ach. L. U. p. 674) Nyl. in 
Flora 1876 p. 176. — Corticicola in insula Sancti Thomse 
750 m: Moller. — Asia orient., Amer. trop. 
1282. M. disjectans Nyl. Japon. p. 87. Sporse elongato- 
ellipsoidese vel oblongo - ovales loculis quaternis ellipticis 
fuscse longit. 0 , 015 - 22 , crassit. 0 , 005-7 mm. Thallus K—— 
Super corticem arboris e Malvacearum familia prope Durban: 
Wilms. — Endem. 
1283. Opegrapha stictica (DR.-Mnt. Alg. p. 282) Nyl. 
Alger. p. 315. — Supra truncum vetustum Suberis prope 
La Calle Algerise: Durieu. — G-all. merid., Peruv. 
1284. 0. grumulosa Duf. in Journ.Phys.l818,LXXXVII 
p. 214, Nyl. Nov.-Zel. p. 148. — Supra thallum Dirince re¬ 
pandae in Algeria. — Europ. 
1285. 0. dirinaria Nyl. (Alg. p. 334) Nov.-Zel. p. 147. 
— Supra radices denudatos Chameropis humilis et supra 
saxa calcaria prope Oran: Balansa. — Angi., Ital., Libanon. 
— F. platycarpa Nyl. (Alg. p. 334) Nov.-Zel. p. 148. — 
Supra saxa calcaria prope Oran: Balansa. — Endem. 
1286. 0. arfhonoidea Nyl. 11. cc. — Supra lapides cal¬ 
carios prope Oran: Balansa. — Endem. 
1287. 0. semiatra Muli, in Flora 1886 p. 312. — Cor¬ 
ticicola prope Lydenburg in Transvaalia: Wilms (Lichenoth. 
univ. 93). — Endem. 
1288. 0. diagraphoides Nyl. Nat. p. 12. — Corticicola 
in Port Natal: Armstrong-Mackenzie. — Endem. 
1289. 0. interalbata Nyl. 1. c. — Corticicola in Port 
Natal: Armstrong-Mackenzie. — Amer, sequinoct. 
1290. 0. Bonplandise Fee Ess. p. 25, Nyl. Exot. p. 229. 
— Supra corticem emortuum Palmarum in territorio Lo- 
ango: Pechuel-Loesche, supra ligna decorticata in insula So- 
cotra: Balfour. — Bengal., Nov.-Caled., Amer, utraque. — Var. 
