11 
steri vehementer doleo jam vita excessisse priusquam hic li¬ 
bellus in lucem prodiret. Spero equidem haec in genere 
Lichenologico clarissima nomina memoriae posteritatis usque 
consecrata fore. 
ENUMERATIO SPECXERUM. 
1. Gonionema velutinum (Ach. Syn. p. 329) Nyl. Prodr. 
p. 16. — Super saxa quartzosa in Guinea Liberica prope Mon- 
roviam: Naumann. — Extra Africam etiam in Europa et in ins. 
Puertorico. 1 
2. Sirosiphon saxicola Naeg. in Kiitz. Spec. Alg. p. 316. 
— Supra saxa quartzosa ad PortNatal: Armstrong-Mackenzie 
et supra saxa arenaria in summo Monte Leonis prope Kap- 
stadt: MacOwan.— Etiam in Europa. 
3. S. pulvinatus Breb. in Kiitz. 1. c. p. 317. — Supra 
terram glareosam prope Philippeville Algerise 50 m: Flagey. 
— Etiam in Europa. 2 
4. Cryptothele africana Muli, in Flora 1879 p. 292. 
— Supra saxa micaceo-gneissiaca in collibus Baginse terri¬ 
torii Nyamnyam: Schweinfurth. — Lichen Africus endemicus. 
5. Pyrenopsis Mackenziei Jon. in Nyl. Nat. p. 3. — 
Supra saxa quartzosa ad Port-Natal: Armstrong-Mackenzie. 
— En dem. 
6. Ephebe pubescens (Ach. L. U. p. 610) Fr. S. 0. V. 
p. 256. — In Algeria et in stillicidiis saxosis summi Montis 
Leonis prope Kapstadt: MacOwan. — Etiam in Europa, Austr., 
Amer. sept. et Groenlandia. 
1 De Scytonematis specie non rite evoluta ad Promontorium 
viride cfr. Cromb. Cball. p. 2l'l. 
2 De Sirosiphonis specie non rite determinanda ad Promon¬ 
torium Bonse Spei cfr. Cromb. Cap. p. 166. 
