LICHENES IN INSULA TRINIDAD. 137 



dia ad Heterothallum pertinentia, irregulariter ramosa, cellulis irregu- 

 lariter oblongis aut difformibus, 0.004-0.005 mm. crassis. 



Sporis majoribus differt a G. epiphylla (Mull. Arg.) Vain. Lich. Ins. 

 Philipp. Ill, p. 148. 



Supra folia arboris. Maraval Valley (No. 69). 



22. Coenogonium interplexum Nyl. Obs. Coenog. p. 92 ; Vain. 

 Addit. Lich. Antill. p. 131. Sporae long. 0.010-0.011, crass. 0.002- 

 0.0015 mm., 1-septatae. Gonidia cellulis 0.030-0.036 mm. longis, 

 0.018-0.020 mm. crassis. 



Ad ramos arbusculorum. Aripo Savanna, Cumuto (No. 32). Fert. 



23. Tricharia Amazonum Vain. (sp. n.). Thallus tenuis aut 

 tenuissimus, continuus, glaucescens, leviter nitidus, laevigatus aut 

 demum leviter inaequalis, pilis ornatus nigris, dispersis, apicem versus 

 sensim attenuatis, basi in bulbum nigrum, vulgo haud prominentem, 

 incrassatis, hypothallo indistincto. Apothecia numerosa et sat crebra 

 aut sat dispersa, orbicularia, 0.25-0.2 mm. lata, lecideoidea, promi- 

 nentia, basi tota adnata, nee constricta, disco leviter concavo aut 

 planiusculo, rufescente aut pallido-rufescente, nudo, margine tenui, 

 prominente, integro, fuscescente, persistente. Hypothecium albidum. 

 Perithecium margine dilute fuscescens, ceterum pallidum. Hymen- 

 ium jodo non reagens; paraphyses ramoso-connexae, tubulis 0.0005 

 mm. crassis, gelatinam hymenialem percurrentes. Sporae 8:nae aut 

 pauciores, etiam solitariae, decoloratae, oblongae, apicibus rotundatis, 

 murali-divisae, cellulis numerosissimis, long. 0.065-0.066, crass. 0.016- 

 0.026 mm., membrana leviter gelatinoso-incrassata. Gonidia pleuro- 

 coccoidea, globosa, tantum simplicia visa, diam. 0.005-0.007 mm. 



Tricharia melanothrix (Vain. Lich. Ins. Philipp. Ill, p. 159) huic 

 speciei proxime est affinis, praesertim sporis minoribus, tantum soli- 

 tariis ab ea differens. Pilis crebris, bulbisque prominentibus planta 

 in Fee. Ess. Crypt. Ecorc. tab. Ill, f. 18 a et c delineata magis speciei 

 Philippinae, quam Trinidadensi, similis est. 



Supra folia coriacea arboris, La Seiva Valley (No. 50). Fert. Hue 

 verisimiliter etiam pertinet No. 47 in Maraval Valley sterilis collectus. 



24. Thelotrema (Ocellularia) sublilacinum (Ellis) Vain. 

 (comb. n.). Karstenia sublilacina Ellis in Smith Centr. Amer. Fungi, 

 No. 49 (sec. Thaxter in litt.) Sacc. Syll. Fung. XIV (1899) p. 810. 

 Thallus modice incrassatus, laevigatus aut partim rugosus vel verru- 

 coso-inaequalis, glaucescens vel stramineo-glaucescens, KOH demum 

 leviter rubescens, gonidia trentepohliacea continens, hypothallo indis- 



