DR. J. MULLER — LICHENES MAXIPURENSES. 219 



30. Ptxisk Cocoes, Nyl. Lich. exot. Polynes., in Ann. Sc. Nat. 

 se'r. 4, xi. 1859, p. 239. 



31. P. RETIBUOELLA, Ntfl. 1. C. p. 240. 



Trib. Placodie.e. 



32. Placodium (§ Acabospoba) indicum:, Miill. Arg. ; thallus 

 areolato-squamulosus, badio-fuscus ; squamula? apotheciis 2-3plo 



nnnores, parce crenulatae et angulosae, subheves v. demum 

 gulosae, planae ; apothecia f-f mm. lata, adpresso-sessilia, omnino 

 emersa, margine thallind cum thallo concolore et tenui cincta ; 

 margo integer, intus linea zeorina obscuriore et cum disco cou- 

 colore magisque prominente praeditus ; discus nigro-fuscus et 

 nudus, planus. — Species est propria, sed sporae evolutae lion 

 aderant, ex habitu juxta PI. subglobosum, Miill. Arg. Lich. 

 Argentin. n. 23, locanda. — Saxicola in rivulis montium supra 

 Manipur, alt. 6000-10,000 ped., parcissime lecta. 



Trib. Psoreje. 



33. Psora, paryifolia, Mull. Arg. — Lecidea parvifolia, Pers. 

 in Gaudich. Pot. Fog. JJran. p. 192 ; sterilis tantum lecta, sed in 

 specim. varietatis sequentis apothecium unicum sporigerum 

 missum fecit. 



, v. subgranulosa. — Lecidea parvifolia, v. subgranu- 

 losa, Tuckerm. in Proc. Am. Acad. vi. (1861) p. 273. 



34. P. manipurensis, Miill. Arg.) thalli squaniulae glauco- 

 albae, depresso-granuliformes, ^-j 2 ^- mm. latae, subadpressa?, 

 orbiculares et oblongata, plerumque integrae, hinc inde crenatae, 

 margine subtilissime albo-fimbriatae, hypothallus parum di- 

 stinctus; apothecia ^-^- mm. lata, sessilia, crassiuscula, juniora 

 olivaceo-fusca et crasso-marginata, demum nigro-fusca et cito 

 immarginata, mox convexa, opaca, intus obscura ; hypothecium 

 flavo-fuscum, crassum ; sporae 8nae, cylindrico-ellipsoideae, 8-9 ^ 

 longfe et 3/z late. — Thallus ut in Ps. pyrrhomelana (Lecidea 

 Pyrrhomelcena, Tuckerm. in Proc. Am. Acad. v. 1862, p. 419), 

 s ed hypothallus non fusco-praedominans, apothecia non gregatim 

 approximata nee persistenter marginata et hypothecium aliud. 

 Inter hanc et Ps. chlorophaam, Miill. Arg. in Flora, 1887, p. 320, 

 locanda est. 



Trib. Lecanoreje. 



- 



35. Lecanora gra^ifeba, Ach. Syn. p. 163. 





s2 



