428 I. DiscoLiciiENES (Waiiiio). [Ectolechia 



Epithecium gonidia hymenialia (diam. 0*004 ad 0-003 mm.) con- 

 tinens, flavescenti-pallidimi vel olivaceo-flavescens, KHO non 

 reagens, jodo fulvo-rubesceiis. Paraphyses arete coha^rentes, 

 neque ramosse, nee connexse. Spor?e solitaria?, oblongse, decolores, 

 long. eirc. 0-050 ad 0-054, crass. 0-014 ad 0-022 mm., murales, 

 cellulis numerosissimis. Thallus intus jodo vinose rubens, gonidia 

 cystococcoidea, diam. 0007 ad 0*010 mm. eontinens. Excipulum 

 in margine tenue. Affinis est E. phyllocharkle (Mont.), quae 

 apotheciis magis elevatis et excipulo magis evoluto ab ea differt 

 et intermedia est inter E. gktucoviresceiitem et E. jyhyllocharidem. 

 GoLUXGo Alto. — Ad folia arboris in Serra de Alta Queta. No. 290. 



2. E. (Gyalectidium) aspidota Wain., sp. n. 



Thallus plagulseformis, fere sicut in Strigula, plagulas eirc. 

 1 ad 2 mm. latas, rotundatas, ambitu subintegras, leviter depresso- 

 convexas, albidas vel cinereo-albidas, erebre contextas, laevigatas, 

 nitidulas, continuas, apothecia subsolitaria continentes formans, 

 hypothallo indistincto. Apothecia thallo urceolato-immersa, aspici- 

 lioidea, immarginata, disco 0-4 ad 0-6 mm. lato, piano, impresso, 

 testaceo-fuscescente, strato thallino gonidiis destitute imposita. 

 Excipulum solum ex hypothecio albido gonidiis destituto tenui 

 formatum. Hymenium 0-050 ad 0-070 mm. crassum (in KHO 

 bene turgescens, ad 0-120 mm. crassum), jodo lutescens, epiplasmate 

 aseorum jodo vinose rubente. Epithecium dilute fnscescens aut 

 pallidum. Paraphyses tenuissimse, gelatinam in KHO turges- 

 centem percurrentes, increbre ramoso-connexse. Sporse solitarise, 

 decolores, murales, cellulis numerosissimis, long. 0-030 ad 0-070, 

 crass. 0*018 ad 0*050 mm. Gonidia cystococcoidea. Habitu sicut 

 prsecedens, sed thallo crassiore ab ea differens. 



GoLUXCU) Ai/ro. — Ad folia perennia fruticis prope Sange. No. 292 

 pr. p. 



2. ASTEROTHYRIUM Miill. Arg. 



1. A. Welwitschii Wain., sp. n. 



Thallus crustaceus, tenuis, laevigatus, sat opacus, continuus, 

 albidus, maculas 1 ad 2 mm. latas formans, hyphis radiantibus (ad 

 instar cellularum Phycopeltidis), pachydermaticis, eirc. 0*004 mm. 

 crassis, in cellulas breves divisis, obductus. Gonidia globosa, 

 diam. 0-006 ad 0-010 mm., simplicia, cystococcoidea. Apothecia 

 thallo immersa, eirc. 0-250 mm. lata, 0-120 mm. crassa,orbicularia, 

 lobis minutis, triangularibus, vulgo eirc. 4, diu plus minueve 

 distinctis, 0-025 mm. crassis, demum indistinctis, e lateribus con- 

 niventibus discoque connatis peritliecii formatis instructa. Peri- 

 thecium testaceum, gonidiis destitutum aut in latere basali pai^ce 

 gonidia eontinens. Hypothecium tenue, testaceum, strato nullo 

 gonidia continenti impositum. Hymenium 0-110 mm. crassum, 

 pallidum, jodo non reagens, epithecio rufescenti-pallido. Para- 

 physes simplices (haud ramoso-connexse), gelatinam sat copiosam 

 percurrentes. Asci membrana tenixi. Sporte binae, 1-septata), 

 ellipsoideae aut oblongae, long. 0042 ad 0-048, crass. 0-018 ad 

 0-024 mm., haud constrictae, decolores aut pallidse, membrana 



