132 VAINIO. 



8. Heppia Trinitatis Vain. (sp. n.). Thallus foliaceus, dicho- 

 tome aut partim subirregulariter crebre repetito-laciniatus, caespites 

 circ. 10-25 mm. latos formans, laciniis 0.4-0.7 mm. latis, sublinearibus, 

 superne leviter convexis, subtus canaliculato-concavis, superne et 

 subtus laevigatus et cinereo-nigrieans, glaber, rhizinis nullis distinctis, 

 sed hyphis hypothallinis penicillato-confertis, impure albidis passim 

 substrato affixus, crass, circ. 0.220 mm., heteromericus, in parte 

 superiore et inferiore zonam gonidialem continens, zona medullari 

 gonidiis destituta, strato corticali destitutus. Gonidia cyanophycea, 

 caerulescentia aut glaucescentia, cellulis subglobosis, diam. 0.005- 

 0.004 mm., concatenatis aut solitariis binisve, membrana tenuissima, 

 vagina haud evoluta, heterocystis decoloratis, aeque crassis, mem- 

 brana distincta. Habitu Phycias in memoriam revocans. 



Ad rupem in rivulis in silva. St. Ann's Valley, Trinidad (No. 36). 

 Ster. 



9. Physma byrsinum (Acb.) Miill. Arg. var. hypomelaena Nyl. 

 (Vain. Lich. Ins. Philipp., Ill, p. 45) 



Ad corticem arboris. Sangre Grande (No. 85). Fert. 



10. Leptogium azureum (Sw.) Nyl. var. laevior Vain. 1. c. p. 37. 

 Ad corticem arboris. Sangre Grande (No. 85). Fert. 



11. Cladonia pityrea (Floerk.) Fr. f. squamulij 'era Vain. Mon. 

 Clad. Univ. Ill, p. 255. 



Ad plantas destructas. Four Roads (No. 35). Ster. 



12. Bilimbia Maravalensis Vain. (sp. n.). Thallus crustaceus, 

 sat tenuis, subverruculoso-inaequalis, sat continuus, cinereo-glauces- 

 cens, esorediatus, hypothallo indistincto. Apothecia dispersa, aut 

 partim aggregata, lat. 0.8-0.4 mm. late adnata, basi leviter constricta, 

 disco piano aut vulgo demum convexo, carneo-pallido, nudo, leviter 

 nitido, margine concolore, tenui, integro, demum vulgo excluso. Peri- 

 thecium hyphis radiantibus, sat leptodermaticis conglutinatis, cavi- 

 tatibus cellularum 0.002-0.003 mm. latis. Hypothecium decolora- 

 tum, hyphis irregulariter contextis, sat pachydermaticis, conglutinatis, 

 in parte superiore cellulis depressis, in seriebus horizontalibus dis- 

 positis. Hymenium 0.060-0.070 mm. crassum, jodo sat dilute caeru- 

 lescens. Epithecium fere decoloratum. Paraphyses arete con- 

 glutinatae, tenues, apice vix incrassatae. Sporae 8:nae, decolores, 

 oblongae aut elongatae, apicibus obtusis aut rotundatis, rectae aut 

 leviter curvatae, 3-septatae, long. 0.012-0.017, crass. 0.0025-0.003 



