26 A. Zahlbruckker: Lichenes. 



10. P. nitida (Weig.) Ach. (Cat. Lieh., I, 443). [Verrucaria n. Schrad. 

 CnoMB. I, 66). Kiangsu: Schanghai, auf Rinde (Maingay). 



11. **P, cuprescens A. Zahlbb. 



Thallus epiphloeodes, crustaceus, uniformis, sat late expansiis, substratum 

 arcte obducens, tenuis, oHvaceo argillaceove cervinus ^el cuprescens, opacus, 

 KHO demum sanguinescens, CaClaOo — , continuus, laevigatus, sorediis et 

 isidiis destitutus, in margine linea obscuriore non cinctus; gonidia ad Trente- 

 pohliam pertinentia; Stratum corticale subchondroideum, decolor, ex hyphis 

 intricatis et dense conglutinatis formatum; hyphae medullae non amyloideae. 



Apothecia crebra, dispersa vel approximata, semiemersa, parva, 0,2 — 0,35 mm 

 lata, convexa vel fere globosa, primum omnino, dein tantum lateraliter thallino- 

 vestita, vertice nigro, nitidulo; excipulum fuligineum, ad 45 /i crassum, in sec- 

 tione transversim ovato-ellipticum ; involucrellum fuligineum, dimidiatum, sat 

 crassum, ad basin parum crassius et subanguloso-retusatum, dein angustatum 

 et paulum infra hymenium inflexum, excipulo arcte adhaerens vel passim ab 

 eo leviter secedens: nucleus decolor, purus, dilucidus, J cupreo-lutescens; para- 

 physes capillares, strictulae, simplices, eseptatae, ad apicem non latiores, gela- 

 tinam mediocrem percurrentes : asci clavati, recti vel subrecti, superne rotundati 

 et membrana modice incrassata cincti, paraphysibus breviores, 6 — Sspori; 

 sporae in ascis uniseriales, olivaceae, demum obscuratae et corrugatulae, late 

 ellipsoideae vel ovales, rarius oblongo-digitiformes, rectae, 41oculares, loculis 

 subanguloso-globosis, fere aequalibus, 35 — 48 /t longae et 15 — 19 // latae. 



H.: Lebende Stämme von Eurya nitida in der str. St. des Yolu-schan bei 

 Tschangscha, 200 m, 10. XII. 1917 (11423). 



12. ** p. hunana A. Zahler. 



Thallus endophloeodes, extus maeula ochraceo-rufescente, nitidula, laevi et 

 continua, plus minus expansa indicatus, soredia et isidia non formans, in margine 

 linea tenui nigricanteque cinctus; gonidia ad Trentepohliam pertinentia, increbra. 



Apothecia dispersa, adpresse sessilia, nigra, nitida, ad 0,5 mm lata, leviter 

 convexa, a thallo libera, poro terminali tenuissimo, haud conspicuo pertusa ; 

 excipulum dimidiatum, fuligineum, ad basin retusatum, non productum, me- 

 diocre; nucleus decolor, purus, J lutescens; paraphyses filiformes, simplices, 

 eseptatae, ad apicem non latiores, strictae, laxiuscule conglutinatae ; asci cyUn- 

 drico-clavati, superne rotundati et membrana leviter incrassata cincti, Sspori: 

 sporae in ascis uniseriales, fumoso-fuscae, late ovales, utrinque rotundatae vel 

 in uno apice angustato-rotundatae, rectae, 4loculare8, loculis lentiformibus, 

 2 apicalibus parum minoribus, parvae, 9 — 12 fi longae et 6 — 1,5 pi latae. 



H.: An lebenden Zweigen von Pseudolarix Fortunei bei Ngandjiapu nächst 

 Hsikwangschan, ^^^p. St., 575 m, Anfang I. 1919 leg. Brauer (12769). 



Im Habitus der europäischen Pyrenula Coryli Mass. recht ähnlich, aber die 

 Apothezien sind breiter und flacher. 



IS. ** p, quercuum A. Zahlbr. 



Thallus endophloeodes, maculas minores formans, tenuiter nigro-limitatas, 

 dispersas vel confluentes, extus maeula ochraceo-lutescente, nitida, continua et 

 laevigata, sorediis et isidiis destituta indicatus; gonidia ad Trentepohliam per- 

 tinentia, cellulis concatenatis, late ellipsoideis vel subglobosis, 12 — 17/ilongis. 



Apothecia sessilia, basi immersa, nigra, nitida, convexa, ad basin non 



