158 A. Zahlbkuckner: Lichenes. 



NW-Y. : Diabasfelsen an windgeschützten Stellen der Hg. St. auf dem 

 höchsten Kamme zwischen Haba und Dugwantsun se von Dschungdien, 4350 

 bis 4450 m, 23. VI. 1915 (6948). 



20. L. cinereorufescens (Ach.) Hepp. (Cat. Lieh., V, 288). Schenhsi: 

 Silikatfelsen des Hwangtou-schan (Gibaldi nach Jatta I, 476). 



21. * L. subimmersa (Fee) Wain. (Cat. Lieh., V, 352) ** subsp. asiatica 

 A. Zahler. 



Thallus epilithicus, crustaceus, uniformis, sat late expansus et substratum 

 arcte obducens, tenuis, 0,3 — 0,5 mm crassus, subtartareus, albidus, paulum in 

 lutescens vergens, nitidulus, KHO flavens, CaClgOa — , areolatus, areolis 

 parvis, usque 1,4 mm latis, vulgo tamen minoribus, subangulosis, fissuris tenuis- 

 simis separatis, planiusculis, inaequalibus vel convexulis, sorediis et isidiis nullis, 

 in margine Mnea tenui nigricante cinctus; meduUa alba, ex hyphis non amy- 

 loideis formata. 



Apothecia immersa, thallum non superantia, in areolis utplurimum soli- 

 taria, rotunda vel subirregularia, 0,2 — 0,8 (1) mm lata, nigra, opaca, epruinosa, 

 immarginata ; discus e concaviusculo planatus vel leviter convexus; hymenium 

 superne aeruginose obscuratum, KHO — , NO5 coerulescens, non pulverulentum 

 et Strato angusto amorpho et decolore supertectum, caeterum sat dilute aeru- 

 ginascens aut decolor, purum, 120 — 130 /i altum, J intense coeruleum; hypothe- 

 cium pallidum, dilute lutescens vel fere decolor; paraphyses densae, strictae, 

 fihformes, contextae, simplices, eseptatae, ad apicem non clavatae; asci ob- 

 longo-clavati, superne rotundati et membrana modice incrassata cincti, Sspori; 

 sporae plus minus distichae, simplices, decolores, late ellipsoideae vel ovales, 

 utrinque rotundatae, rectae, membrana tenui cinctae, 11 — 13 ,m longae et 6 — 6,5 p, 

 latae. Pycnoconidia non visa. 



Y.: Uürre Quarzitfelsen in der wtp. St. bei Schilungba nächst Yünnanfu, 

 1900m, 20. II. 1914 (128). F.: Kalkfreie Felsen des Gu-schan bei Fudschou 

 {Chung 609 p. p.). 



A typo (Glaziou, Lieh. Brasil, exsicc. 1204) discrepat colore epithecii 

 (in typo rufescenti-fusci) NO5 distincte coerulee colorati. 



** ssp. umbrinascens A. Zahlbk. 



Thallus epilithicus, crustaceus, uniformis, substrato adhaerens, maculas 

 minores, irreguläres et bene limitatas formans, subtartareus, crassiusculus, 

 vulgo ad 1 mm altus, osseo-albidus, opacus, KHO flavens et demum sordidescens, 

 CaClgOa — , tenuissime irregulariter vel subareolatim fissus, continuus, laevigatus, 

 sorediis et isidiis destitutus, in margine passim linea tenui, nigra cinctus; Stratum 

 gonidiale angustum, continuum, gonidiis cystococcoideis, globosis, laete viri- 

 dibus, 12 — 15// latis; meduUa alba, crassa, KHO olivaceo-lutescens, CaClgOa — > 

 J — , ex hyphis intricatis et pulverulento-inspersis formata, elementa substrati, 

 particulas quartzosas, includens. 



Apothecia crebra, gregatim approximata, immersa, minuta, 0,2 — 0,3 mm 

 lata, rotunda, nigra, opaca, madefacta obscure fusca, e piano rare paululum 

 convexa, margine tenuissimo; integro, vix prominulo cincta, passim thallo 

 anguste annulatim cincta, excipulum diraidiatum, tantum ad latera hymenii 

 evolutum, dilute lutescens vel fere decolor, J — ; hymenium superne anguste 

 umbrinum, KHO — , NO5 — , superne strato amorpho tenui et decolore obductum, 



