Lecanoraceae. 171 



zwischen Haba imd Dugwantsun se von Dschungdien, 4350 — 4450 m 23 VI 

 1915 (6947). 



Quoad habitum sat similis est L. polytropae, a qua tarnen structura interna 

 omnino altera et notis aliis discrepat. 



62. L. polytropa (Hrm.) Rabh. (Cat. Lieh., V, 511). S.: Phyllitfelsen in 

 der tp. St. bei Hosö im nw von Yungning herabkommenden Tale im Bezirke 

 von Muli, 2950 m (unter lonaspis sinensis 7558). Schenhsi: SiHkatf eisen des 

 Hwangtou-schan (Giraldi nach Jatta I, 475). 



63. **L. irridens A. Zahler. 



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

 subtartareus, substrato adhaerens, tenuis, ochraceus, opacus, KHO flavens, 

 CaClaOg — , continuus, minute granulosus vel pulverulento-granulosus, ambitum 

 versus minus continuus et subleprosus, sorediis et isidiis non praeditus, in margine 

 linea obscura non cinetus; gonidia cystococcoidea, globosa, laete viridia, 9 — 12 « 

 lata: meduUa alba, J — . 



Apothecia in prima juventute habitum lecanorinum offerentia, mox in eo 

 respectu biatorina, sat erebra, dispersa vel approximata, livido-nigricantia, 

 rarius livido-fusca, raadefaeta magis livida, opaca, primum planiuscula, mox 

 convexa, rotunda, ad basin vix constricta, 0,8 — 1,1 mm lata; margo cum thallo 

 concolor, pertenuis, integer vel subinteger, mox depressus; excipulum distinctum 

 non evolutum ; hymenium superne anguste obscure livido-fuscum, pulverulento- 

 inspersum, KHO — , NO5 — , caeterum decolor et purum, usque 240 /^ altum, 

 J intense coeruleum et demum aeruginoso-obscuratum, in hypothecium lutescens, 

 ex hyphis verticalibus, dense contextis formatum sensim abiens, strato gonidiali 

 superpositum ; paraphyses densa« et strictae, filiformes, simplices, eseptatae, 

 ad apicem haud latiores, gelatinöse conglutinatae ; asci oblongo- vel ovali-clavati, 

 inferne sensim et longiuscule angustati, superne rotundati et membrana modice 

 incrassata eincti, Sspori; sporae subuni- vel biseriales, decolores, simplices, 

 ovales vel late ellipsoideae, utrinque rotundatae, rectae, membrana tenui cinetae, 

 contentu aequaliter oleoso, 9 — 11/i longaeet6 — 7/y. latae. Pycnoconidia non visa. 

 S.: Phyllitfelsen in der str. St. bei Schangliangdse nächst Dötschang im 

 Djientschang („Kientschang"), 1770 m, 6. IV. 1914 (1865). 



64. L. frustulosa (Dicks.) Ach. var. argopholis (Ach.) Link. (Cat. Lieh., 

 V, 455). {L. argopholis Ach. Jatta I, 475). Schenhsi: SiHkatf eisen des Laoyi- 

 schan (Giraldi). 



Sect. Plaeodium (Ach.) Mann. 



A. Thallus olivascens, placodiali-squamosus 74. oleosa. 



B. Thallus aliter coloratus. 



a) Thallus albidus, cinerascens vel cinereus. 



I. Lobi thaUi in margine summo reflexi; discus livido-rufus 



65. coccocarpoides. 

 II. Lobi thaUi omnino adpressi; discus obscurus, fusco-nigricans. 



1. Thallus cinereus, tenuior; apothecia nuda, convexa 



66. melanaspis. 



2. Thallus albidus, crassior; apothecia planiuscula, caesioprui- 

 nosa ^^- alphoplaca. 



