136 VAINIO. 



cavitatibus tenuibus. Asci clavati. Sporae S-nae, distichae, de- 

 colores, fusiformes-oblongae aut ellipsoideae aut rarius subglobosae, 

 long. 0.009-0.014, crass. 0.006-0.008 mm. Gonidia pleurococcoidea, 

 globosa, diam. 0.006-0.004 mm. 



Proxima L. declinii Nyl. (haud Bilimbia declinis (Tuck.)) sive L. 

 declinandae Nyl. (Lich. Nov. Zel. p. 146), quae thallo crassiore, verru- 

 culoso-rugoso ab eo differt. 



Ad corticem arboris. Maraval Valley (No. 42). 



20. Pilocarpon glabrum Vain. (sp. n.). Thallus crustaceus, sat 

 tenuis, areolatus, areolis 0.3-0.2 (0.35-0.15) mm. latis, planis aut 

 depresso convexis, contiguis aut partim dispersis, albido-glaucescenti- 

 bus, leviter nitidis, nee KOH, nee HCaC^C^ reagentibus, hypothallo 

 indistincto. Apothecia vulgo dispersa, lat. 0.7-0.5 mm., basi leviter 

 constricta, late adnata, disco piano, nigro nudoque aut vulgo tenuiter 

 cinereo-pruinoso, opaco, margine sat tenui, primum diu leviter promi- 

 nente, persistente, glabro, integro, laevigato, albo, opaco. Hypothe- 

 cium fusco-fuligineum, basi usque ad substratum conice productum, 

 KOH non reagens. Parathecium tenue, fusco-fuligineum. Perithe- 

 cium albidum, ex hyphis crebre contextis, haud conglutinatis forma- 

 tum, gonidiis destitutum. Hymenium 0.120-0.130 mm. crassum, 

 jodo persistenter caerulescens. Epithecium olivaceo-obscuratum. 

 Paraphyses ramoso-connexae, apicibus irregulariter contextis. Sporae 

 8 :nae, decolores, f usiformes, leviter curvatae, apicibus sat obtusis aut 

 altero apice rotundato, 5-7 septatae, loculis cylindricis, long. 0.052- 

 0.080, crass. 0.008-0.013 mm. Gonidia globosa, tantum simplicia 

 visa, diam. 0.006-0.010 mm., membrana tenui aut sat tenui, pleurococ- 

 coidea, ut videtur. 



Supra folia arboris. La Seiva Valley (No. 59). 



21. Gyalecta pachyspora Vain. (sp. n.). Thallus crustaceus, 

 tenuissimus, continuus, laevigatus, glaucescens, hypothallo indistincto. 

 Apothecia lat. 0.4-0.3 mm., basi constricta, disco piano aut primum 

 subconcavo, fulvescenti-carneo aut carneo-pallido, nudo, margine 

 concolore aut pallidiore, persistente, primum diu prominente, sat 

 tenui, integro. Perithecium albidum, plectenparenchymaticum levi- 

 ter pachydermaticum, gonidiis destitutum. Hypothecium decolora- 

 tum. Hymenium 0.055 mm. crassum, jodo non reagens. Asci sub- 

 cylindrici. Sporae 8:nae, distichae, ovoideae aut ellipsoideae, vulgo 

 altero apice rotundato, altero obtuso, aut rarius apicibus ambobus 

 obtusis, 1-septatae, long. 0.008-0.0017, crass. 0.004-0.008 mm. Goni- 



