123 
(L e canora) 
disco nigrofusco plano. Hymenium incolor, epithecio oli- 
vaceo, hypothecio incolore, paraphysibus discretis. Sporae 
octonae incolores ellipsoideae 1-septatae, interdum medio con¬ 
strictae, longit. 0,oio-i5, crassit. 0, 005-7 mm. Gelatina hyme- 
nea iodo coerulescens. Spermogonia non visa. — Supra saxa 
duriora (granitica et arenaria) in summo Monte Leonis prope 
Kapstadt: MacOwan. — Endem. 
756. L. arthroodes Nyl. in Flora 1876 p. 283. — Super 
truncos Mimosce circa Birket Ghuttas meridiem versus Alexan- 
driae: Larbalestier. — Endem. — Yar. extrita Nyl. L c. — 
Supra truncos arborum ad Zowyet el Ghazal inter Alexan¬ 
driani et Cabiram: idem. — Endem. 
757. L. Rehmanni. Thallus cinereus cartilagineo- 
squamulosus. Apothecia crebra diam. 0,6-1, 3 mm, fusconigra 
convexa nitida, margine thallino tenui integro subpersistente, 
intus cinerea. Hymenium pallide fulvescens in hypothecio 
fulvo, epithecio incolore, paraphysibus non discretis. Sporae 
octonae simplices incolores fusiformes, longit. 0, 010 - 14 , crassit. 
0 , 0020-25 mm. Gelatina hymenea iodo coerulescens. Epithalius 
K-f- luteus. Spermatia frustra quaesita. — Corticicola in Na¬ 
talia superiore: Rehmann. — Endem. — Sporarum forma 
excellens, forte e stirpe L. badice. 
758. L. atra (Huds. FI. Angi. II p. 530) Ach. L. U. 
p. 344. — Saxicola prope Milah in Algeria 450 m: Flagey. 
Corticicola et saxicola in Promontorio Bonae Spei: Zeyher 
et in insula Madera. Thallo flavido in insula Borbonia. — 
Europ., Palsest., Zeylan., Japon., Nov.-Caled., Nov.-Zel., Amer, 
utraque, Fret. Bering. — Yar. succedanea Nyl. in Cromb. 
Rodr. p. 440. — Super corticem arborum, ligna emortua 
et saxa in insula Rodriguesii: Balfour. — Endem. — Yar. 
discolor (Duby Bot. Gall. p. 670) Schaer. En. p. 72, Nyl. 
