LICHENES — DR JEAN MULLER. 383 



basi et lateraliter inferoe valide evolutum (fusco-atrum), superne nullum, separandum est, 

 a qua etiam habitu differt. Characteres reliqui caeterum cum Enterographabene quadrant, 

 parapbyses connexae, sporarum structura ut in Opegrapha, Platygrapha, Dirina et in 

 Enterographa. Sclerophgton in Escbw. Syst. Lich. p. 14 fig. 8, et Lich. Bras. p. 10, Fries 

 Plant. Homon. p. 274 (exclus. spec, cit.) expositum est. 



1. E. affinis, Miill. Arg. in Proc. Roy. Soc. Edin. xi. (1882), 469. 



Tballus tenuiter tartareus, globoso-insequalis, argillaceo-cinereus ; gonidia cbroolepoidea ; 

 apothecia immersa, ore orbicularia v. elliptica v. irregulariter angulosa, plana, nuda, sicca 

 atra, madefacta atro-fusca, intus albida, circ. -ft) _ i $ s mm - ^ ata 5 peritbecium tenuissimum 

 subproprium, olivaceo-fuscum, basi deficiens, lamina undique hyalina, paraphyses dense 

 intricatim ramosae, asci angusti, 8-spori ; sporae hyalinae, fusiformes, 20-23 fj, longae, absque 

 halone 4-5 /j. latae, evolutae semper 6-loculares. Proxime accedit ad Enterographam crassam 

 ~F6e Meth. p. 75 (Stigmatidium crassum Duby Bot. Gall. p. 643) et habitu ab ea non nisi 

 in eo differt quod apothecia madefacta nigra v. subnigra (non statim fusco-pallescentia), 

 magis orbicularia, sed apothecia intus pallidiora sunt et sporae breviores (non 25-32 /j. 

 longae), et 6-loculares, halone amplo cinctae. 



Socotra. Corticola, insulatim inter alios Lichenes. B.C.S. 

 Distrib. Endemic. 



2. E. lactea, Mull. Arg. in Proc. Roy. Soc. Edin. xi. (1882), 469. 



Thallus cum verrucis apotheciigeris lacteo-albus, tenuis, polito-lsevigatus, nitidulus, margine 

 tenuissime effusus; verrucae fructigerae circ. \ mm. latae, orbiculares, obtuse angulosse, 

 leviter convexae; apothecia sparsa, hand emergentia, circ. 2*5-20 1Qm • tantum l a ^ a » 

 regulariter orbicularia, sicca et madefacta nigra, nuda; perithecium lateraliter tenuissimum, 

 fuscum, basi deficiens; hypothecium crassum et byalinum, basi autem flavescens; lamina 

 superne fuliginea, caeterum hyalina; epithecium nigricans; asci cylindrico-obovoidei, 

 8-spori; sporae hyalinae et anguste fusiformes, 23-28 /x longae, 4 (cum halone) mm. latae, 

 8-10-loculares, loculi quoad longituclinem sat asquales. Nulli nisi neocaledonicae 

 Enterographce subseriaM, s. Stigmatidio subseriali, Nyl. Syn. Lich. Nov. Caledon. p. 58, 

 affinis, a qua tamen colore lacteo-albo et superficie laevigata thalli et sporis duplo minoribus 

 et insuper minus divisis distinguitur. 



Socotra. Crescit corticola ad ramos crassiores. B.C.S. n. 1337. 

 Distrib. Endemic. 



3. E. fraterculans, Miill. Arg. in Proc. Roy. Soc. Edin. xi. (1882), 469. 



Thallus crassiusculus, leviter alboflavicans, in verrucis thallinis subirregulariter orbicularibus 

 depresso-hemisphaericis apothecia centro confertim gerens; apothecia tantum ^ mm. 

 lata, immersa et leviter depressa, demum magis sensu radiali verrucarum oblongata 

 saepeque partim in lineolas breves submoniliformes 2-3-plo longiores quam latas conflu- 

 entia, fusca, nonnihil cinereo-pruinosa ; perithecium cum epithecio fuscum, temie, basi 

 deficiens; hypothecium pallidum; asci elongati, 8-spori; sporae hyalinae, subdactyloideae, 

 24-27 fi longxe, 6-8 fx. latae, 3 septatae. 



