NONNULL^ SPECIES 5 



Nyl. in Persla et Sibiria meridionali ac in Algeria ; H. quin- 

 quetubera (Delil.) Mûll. Arg. in Palœstina et iEgypto; H. 

 Schweinfurthii Miill. Arg. in Africa et Brasilia. 



I. — Thallus hypharum protothallinarum rhizinarumve 



OPE SUBSTRATO ADH.ERENS, 



1. — Cortex inferior nullus. 

 a. — Thec^ octospor^. 



1. Heppia furva Hue Lichen., in Catalog. raisonné 

 •plant, cellul. Tunisie, 1897, p. 6, secundum specimina 

 in Oudref, in regione Tunetana a cl. Patouillard lecta. 



Thallus furvus vel atratocastaneus, procumbens, satis 

 crassus, opacus et squaraosus : squamae 2-5 mill. latœ, 

 nunc orbiculares, nunc oblongge vel variiformes, vel dis- 

 persas, vel contiguae aut subimbricatse, in ambitu intégrée 

 seu lobulatse, raro planae, ssepius convexae et in oris sab- 

 tus recurvse et tune livide cinctse ; in superficie Iseves ; in- 

 tus albidge; subtus pallide rufge rhizinisque fasciculatis in 

 terram pénétrantes. Hyphae protothallinae 4-8 [i, crassae, 

 articulatae, pariete sat crasso, longe prolatae, fasciculatae 

 aut intricatae. Hyphse gonidiales verticales, 3-5 [x crassae, 

 articulatae articulis paulo longioribus quam latioribus, 

 passim inflatae cellulasque 8 [x metientes et sphaeroideas 

 formantes, saepius ramosae rarais anastomosantibus rete- 

 que maculis mediocribus efficientes et in zona supera 

 20 [x lata, flava aut flavobrunnea et hydrate kalico auran- 

 tiaca cellulas parvas vel coUapsas praebentes. Gonidia 

 cserulescentia, e génère Algarum Glœocapsa Kiitz. orta, 

 3-7 (X lata, nunc unicum aut duo, nunc plura in vaginis 

 valde incrassàtis inclusa atque inter hyphas verticales vel 

 in retis maculis vigentia. Apothecia 1 miU. lata, in thallo 



