Peltiffera. 181 



^o 



aut demum fuscescentibus, rhizinas circ. 5 millim. longas sat sim- 



plices vel apice subpenicillatas fuscescentes basin versus thalli ef- 



ferentibus. Gonidia nostocacea, caeruleo-virescentia, cellulis glo- 



meruloso-concatenatis, Apothecia lobuhs adscendentibus adnata, 



demum ellipsoidea, fere convoluta convexaque. Sporae 3-septa- 



tae, long. O,0 5i O,0 6 2, crass. O,oo2 5 O,oo3 5 millim. 



Ad terram humosam supra rupem in Carassa (1450 metr. 



s. m.) in civ. Minarum, n. 1519. A P. canina var. spuria (Ach.) 



thallo superne haud tomentoso differt. P. polydactyla v. sub- 



spuria Nyl. (coll. Mandon n. 52) thallo superne laevigato et ner- 



vis latis nigris nudis a specie nostra distinguitur. Stratum cor- 



ticale thalli circ. 0,0 6 0,0 8o millim. crassum, grosse parenchy- 



maticum, e seriebus pluribus (circ. 5) cellularum constans, verru- 



culis e cellulis subdestructis formatis. Stratum meduUare hyphis 



0,008 0,004 millim. crassis, lumine cellularum lato, membranis 



sat tenuibus. Oonidia cellulis diam. circ. 0,oo8 millim., pariete 



gelatinoso sat tenui. Hypotliecium dilute vel pallide fuscescens, 



strato medullari, gonidiis destituto impositum. Hymeniiim circ. 



0,10 0,0 9 millim. crassum; asci jodo persistenter caerulescen- 



tes. Epithecium rufescens. Paraphyses sat arcte cohaerentes, 



0,0015 millim. crassae, apice capitatae aut leviter clavatae (0,oo5 



0,0 2 milKm. crassae), haud ramosae, increbre septatae. Asci 



subcylindrici aut cylindrico-clavati, circ. 0,oio millim. crassi, apice 



membrana plus minusve incrassata, massa sporali testacea (sporae 



solitariae decolores). Sporae 8 6:nae, polystichae, aciculari-fusi- 



formes, apicibus attenuatis, obtusiusculis, rectae. 



3. P. leptoderma Nyl., Syn. Lich. (185860) p. 325, Lich. 

 Nov.-Grran. ed. 2 (1863) p. 302 (mus. Paris.). P. canina ^. spuria 

 b. sorediata Tnck., Syn. North Am. (1882) p. 109 pr. p. 



Thallus minutus (long. 20 7 millim.), ambitum versus ad- 



scendens, lobatus, lobis circ. 12 3 miUim. latis, margine ambi- 



tuque subintegris, superne laevigatus, nitidus, tomento isidiisque 



destitutus, sorediis sparsis saepe rotundatis marginem versus obsi- 



tus, paUidus aut pallido-glaucescens aut testaceus fuscescensve, 



subtus maxima parte paUidus, reticulato-nervosus, nervis leviter 



elevatis, angustis, pallidis aut fuscescentibus, rhizinas longiores 



brevioresve sat simplices vel apice subpenicillatas vulgo fusce- 



