133 
(Lecanora) 
819. L. simplex (Dav. Trans. Linn. Soc. II p. 283) Nyl. 
1 . c. — Supra saxa arenaria et scliistosa Algeriae, calcicola 
in deserto Galala Aegypti: Schweinfurth. — Europ., Nov.-Zel., 
Groenl. —- Yar. calcifraga Miill. Egypt. p. 18. — Calcicola 
in Wadi Na-umieh et Wadi Cherese in Aegypto: Schwein- 
furth. — Endem. 
820. L. pumilio. Thallus effusus pulverulentus ochra- 
ceus. Apothecia nigra nitida minima, diam. ca. 0,i mm, mar¬ 
gine lecideino, concava, fere gyalectina. Hymenium e para- 
physibus parcis crassioribus nonnihil ramosis et thecis poly- 
sporis compositum. Sporae minutissimae globulosae diam, vix 
0 ,oo2 mm. Thecae iodo luteofuscescentes. ■— Saxicola in 
Dschebel Wasch prope Constantine: Flagey. —- Endem. — 
Lecanorce urceolatce (Anzi) valde affinis. 
821. L. robiginans Stzb. non L. rubiginans Nyl. in 
Flora 1873 p. 291. Thallus ochraceoferrugineus tenuis gra¬ 
nulosus nonnihil rimulosus effusus. Apothecia margine thal¬ 
lino mox evanido lecideina concava vel plana, disco nigro 
subpruinoso, margine nigro nudo, tandem convexa immargi- 
nata, diam. 0,2-7 mm, intus cinerea. Lamina superne sma- 
ragdula in hypothecio incolore, paraphysibus discretis superne 
inflatis, thecis polysporis. Sporae minutissimae globulosae 
diam, circa 0,oo2 mm. —- Super saxa arenaria prope pagum 
Muizenberg in Promontorio Bonae Spei: MacOwan. — Endem. 
• 
822. L. Clavulus. Thallus deficiens. Apothecia nigra 
lecideina substipitata diam. 0 , 3-4 mm, margine nitidiusculo 
flexuoso, disco csesiopruinoso. Epithecium fumidofuscum, 
paraphyses conglutinatae in hypothecio fusco, thecae poly- 
sporae. Sporae globulosae minutissimae diam. ca. 0,oo2 mm. 
— Supra saxa arenaria ad Muizenberg in Promontorio Bonae 
Spei: MacOwan. — Endem. 
