LICHENES — DR JEAN MULLER. 381 



2. A. stictaria, Nyl. Add. ad Lich. Nov. Zel. n. 7. 



Socotra. In pagina superiore Stictce auratm hospitans, supra Wadi 

 Kischen, alt. 1000 m. (non bene evoluta). Schweinf. 

 Distrib. New Zealand. 



3. A. polymorpha, Ach. Syn. p. 71. 



A. dilatata, Fde Ess. p. 54, t. 13, fig. 7, efc Suppl. p. 38. 



Specimina cum aliise manu F£e, in cortice Cascarillse, bene quadrant, et sporas 4-loculares circ- 

 15 [m longas et 5-6 yu. latas articulo superiore distincte reliquis longiore offert. 



Socotra Corticola in ramulis, B.C.S. n. 1465. 

 Distrib. Central and South America. Common. 



Planta Lindigiana e Nova Granata a cl. Nyl. in Prodr. Nov. Gran. p. 105, sub Arth. polymorpha 

 ■ (inclusa Arth. dilatata Fee sub titulo synonymi) et Glazioviana e Eio de Janeiro, sc. Arth. 

 polymorpha, Krplh. Lich. Glaz. p. 75, a planta cascarillicola diversae sunt, sporis enim 

 5-septatis longioribus et latioribus et apotheciis minus irregulariter lobatis gaudent. 



4. A. calospora, Mull. Arg. in Proc. Roy. Soc. Edin. xi. (1882), 468. 



Thallus albus, subtenuis, laBviusculus, linea nigra cinctus, circa apothecia tumidus et ilia vulgo 

 spurie late marginans ; apothecia J-l mm. lata, orbicularia v. orbiculari-angulosa, raro 

 magis oblongata, convexo-plana, sicca atra et opaca, madefacta nigro-fusca, novella nonnihil 

 pruinoso-velata, intus subconcolori-obscura ; epithecium nigrofuscum ; lamina subhyalina ; 

 asci magni, obovoidei, 8-spori ; sporce hyalinae, 50-60 /z. longse, 18-20 /j, latae, ellipsoideo- 

 subfusiformes, vulgo iucurvae, utrinque obtusre, 10-12-loculares, loculi late lenticulares, 

 superior reliquis non major. 



Species insignis, inter Arth. platygraphidcam, Nyl. in Prodr. Nov. Gran. p. 204, et Arth. cyrtodem 

 ejusd. loc. cit., p. 66, locanda est. 



Socotra. Ad ramos corticola. B.C.S. n. 1455. 

 Distrib. Endemic. 



5. A. complanatula, Miill. Arg. in Proc. Roy. Soc. Edin. xi. (1882), 468. 



Thallus hypophloeodes et cum epidermide subpulveraceo- v. pelliculoso-secedenti conf usus, sub- 

 indistinctus, absque linea limitante ; apothecia -<|— 1 mm. lata, orbicularia v. leviter anguloso- 

 orbicularia, deplanata, subplana, immarginata, circumcirca quasi effuso-evanescentia, sicca 

 et madefacta atra, opaca, nuda, intus concoloria, juniora griseo-velata ; lamina olivaceo- 

 virens ; epithecium viridi-atrum ; asci obovoidei, 8-spori ; sporae hyalinse, 10-12 /* longte, 

 4-5 fj, lata?, dactyloideo-obovoidese, utrinque obtusse, 4-loculares, loculus superior reliquis 

 baud major. 



Habitu quoad apothecia ad Arth. complanatam, F^e accedit, sed sporse duplo et ultra minores 

 et tantum 4-loculares. Eeliquse sporis magis convenientes apotheciis gaudent multo 

 minoribus. 



Socotra. Corticola ad truncos aut ramos majores arborurn. B.C.S. n. 

 1291, 1295, 1316. 



Distrib. Endemic. 



