101 
251. Gyalschdium zantholeueum Müll. Arg. Thallus (epiphylius) 
irregulariter orbicularis, ambitu suberenato-lobatus, tenuis, in- 
tense flavescenti-albus, laeviuseulus, mergine nonnihil radieto- 
plicatulus v. costulatus, sub ipso margine distincte hypothallo 
&1bo leviter plumoso-radiante einetus; gonidia globosa; apothecia 
ervoluta ?2/,—/, mm. lata; extus laevia v. subinde thallino-gibbosa, 
primum cum thallo concoloria et thallodice tecta, demum lae- 
viora et superne thallo leviter obscuriora, demum sub- 
tenuiter marginata margo Jeviter prominens, discus planus et 
pallidus; epitheeium hyalino-olivaceum, hypotheeium fuscescenti- 
fulrum v. rubescens, Jamina hyalina v. ochraceo-hyalina, para- 
physes intrieato-connexae, asei 1-spori; sporae oblongato-ellipso- 
ideae, eirc, 55-65 longae et 12-15. latae, iransversim cire. 
18-septatae loculi longitrorsum 3—4-divisi. — Campylidia (vide 
infra) hic etiam obvia, apotheeiis paullo majora, ore horizon- 
taliter i. e. lateraliter spectante terminate, tota opaco-albida. 
— Habitat in foliis subcoriaceis prope Apiahy in Brasilia meri- 
dionali: Puiggari n. 492. 
252. Gyaleciidium dispersum Müll. Arg. Thallus (epiphyllus) 
parvulus, tenuis, anguloso-suborbicularis, primum subaeruginoso- 
albus et, laevis, dein pallide argillaceo-albidus et erebre rimu- 
losus, non autem granulosus, margine primum minutissime plu- 
moso-effusus; gonidia sphaerica; apothecia 'I,—"/, mm. lata, 
primum sat immersa, dein sessilia et saepe pro parte thallodice 
suffuse, margo demum a thallo solutus et pallidus eique fere 
eoncolor, discus pallidus, sc. margine paullo obscurior, planus; 
hypothecium fulvescens, reliqua lamina hyalina; paraphyses 
elathratim connexae, asei 1-spori; sporae oblongato-ellipsoideae, 
eirc, 55-70 x longae et 12--17 u latae, — Campylidia (vid. 
infra) apotheciis concolorie, albida, ore oblique adscendente 
fuseo-ornata; serosporae oblongatae. — Thallo paullo aliter 
colorato et rimuloso et apotheciis primum immersis a G. zan- 
tholeuco differt. — Habitat in foliis Oleineae in insula Martinica 
(in Hahn-n. 1155), nee non in frondibus Polypodii e Philippinis 
prope Manilla lecti (in Gaudich. n. 49) et verisimiliter in bro- 
pieis latissime dispersum sed rarius bene evolutum; prope 
Apiahy in Brasilia cum numerosis campylidiis et paucis apo- 
thecüis in iisdem foliis crescentibus leg. cl. Puiggari: n. 1272. 
253, Gyalecidium filieinum Müll. Arg. Thallus suborbicularis, 
exiguus, tenuissimus, einereo-virens, nitidulus, plus minusve 
granuliger, margine subeffusus et concolor; gonidia globos# 
