Lecideaceae. gl 



O Discus apotheciorum epruinosus 5. daliangensis. 



O O Discus apotheciorum albopruinosus. 



+ Thallus crassus, areolatus vel verruculoso-inaequalis, sub- 

 rosaceo-albidus ; apothecia 0,5 — 0,7 mm lata 



6. rosaceocinerea. 

 + + Thallus tenuis, continuus vel areolatus, laevigatus et areolis 

 planis; apothecia 1 — 2 mm lata 7. albocoerukscens. 



ß Thallus KHO tantum flavens vel non reagens. 



O Thallus superne tenuissime sorediosus 8. albuginosa. 



O O Thallus esorediosus. 



-j- Thallus plus minus areolatus. 

 y MeduUa J coerulea. 



§ Sporae minores, usque 14 // longae et 7 — 9 /j, latae 



9. peltata. 

 §§ Sporae distinctae majores, 25 X 6 — 8 fi 10. habana. 

 / / Medulla J non reagens. 



§ Apothecia pruinosa 11. ochropolita. 



§§ Apothecia epruinosa. 



r\ Thallus granulosus 13. Chungii. 



rs r\ Thallus non granulosus. 



) Apothecia convexa, immarginata 14. convexa. 

 ) ) Apothecia plana, margine tumidulo persistente cincta 



12. macrocarpa. 

 -f--|- Thallus non areolatus, continuus vel granulosus. 



/ Thallus granularis 15. tnbercuhins. 



/ / Thallus subleprosus IQ. Uvidonigra. 



B- Apothecia immersa, thallum haud superantia. 



a) Thallus fuscus, aeneus vel fuscescens. 



I. Thalli areolae ad ambitum prominenter albomarginatae ; medulla J 

 coerulea cfr. etiam 20. athroocarpa, 



II. Thalli areolae non albomarginatae; medulla J non reagens. 



1. Sporae 10—15 X 5—6^; thallus KHO— 19. schitakensis. 



2. Sporae 10 — 11 X 4 — 5; thallus KHO lutescens 17. internigricans. 



b) Thallus paUidus, isabellinus 18. yünnana. 



1. ** L. cervinopungens A. Zahlbb. 



Thallus crustaceus, epilithicus, uniformis, sat late expansus, tenuis, ad 

 0,1 mm crassus, subtartareus, cinerascenti-cervinus, opacus, KHO parum flavens, 

 CaClaOg — , subareolato-squamulosus vel tenuissime areolatus, areoUs minutis, 

 0,2 — 0,3 rnm latis, fissuris tenuissimis separatis vel plus minus continuis, planis 

 vel vix convexis, in centro thalli continuis et plus minus inaequahbus, ad am- 

 bitum dispersis et hypothallo tenuissimo nigricanti adpressis, sorediis et isidiis 

 destitutus; Stratum corticale pertenue, sordidescens ; gonidia cystococcoidea, 

 viridia, globosa, 10 — 12 fi lata; medulla alba, valde tenuis, ex hyphis non amy- 

 loideis formata. 



Apothecia lecideina, nigra, nitidula, crebra, utplurimum approximata et 

 gregatim congesta, rarius seriata, parva, 0,4—0,8 mm lata, sessiUa, ad basin 



