46 BULLETIN DE l'hERBIER BOISSIER. (14) 



rimoso-areolatus ; areolœ plante aut convexulai, Iccves,. contigua' ; hypo- 

 thallus albus; apothecia numerosissiiiia et conferta v. hiiic inde sparsa, 

 saepe pressione mutua angulosa, circ. ^j?. iiiiii. lata, adpresso-sessilia, 

 opaco-nigra, persistenter coiicava, margine crassiusculo prominente 

 eineta; discus concaviusculus, nigro-cff siiis ; epithecium et hypothe- 

 cium nigro-fusca ; asci 8-spori; sporae ellipsoideae; 10-11 /-'- longa^ et 6 y 

 latae. — Ex affinitatse L. contiguœ Fr., sed rnagis microcarpa et apo- 

 thecia concava. Proxima esse videtur L. assentienti Nyl. e Kergue- 

 lenland et juxta hanc et L. leptocarpam Nyl. (e Nova Zelandia) inse- 

 renda est. — Saxicola ad Lome : Wilson, u. 1026. 



V. athallma Müll. Arg. ; thallus decorticatus et evanescens, vix ni.si 



Strato hypothallino albo cum saxo couferruminato maculam albam 

 formans, unde apothecia laxius sessilia apparent. Reliqua omnia cum 

 specie conveniunt. — Ad saxa arenacea, Lome : Wilson, n. 1032. 

 S6. Lecidea (s. Eulecidea) tristicula Müll. Arg.; thallus siccus nigres- 

 centi-v. fusco-cinereus. madefactus virenti-cinereus, tenuissimus, subti- 

 liter granularis; apothecia ^/-o mm. lata et minora, sessilia, plana, tenuia 

 et tenuiter marginata, tota nigra et nuda, opaca; margo demum ol) 

 discum modice convexum minus distinctus; epithecium viridi-nigri- 

 cans ; lamina superne virens ; hypothecium late nigrescenti-fuscum : 

 paraphyses facile liberae; sporae S-nae, circ. 12 /^. longae et 6 ,« latae. — 

 Praater colorem nigrescenti-obscurum thalli satis accedit ad L. crustu- 

 latam Körb., sed ab ea bene distincta est apotheciis non crassiusculis 

 et paraphysibus non arcte cohaerentibus. — Ad saxa arenacea prope 

 Kew : Wilson. 



87. Lecidea (s. Eulecidea) contigua Fr. L. Europ., p. 298; ad saxa 



arenacea prope Kew : Wilson, n. 649. 1378. ad quartzosa prope 

 Beaconslield : Wilson, n. 1029, porphyritica in Mt Macedon : Wilson, 

 n. 793 et ad ripas prope Warburton : Wilson, n. 790. 



V. flavicunda Nyl. Scand., p. 224; saxicola ad ripas prope War- 

 burton : Wilson, n. 789. 



V. leprosa Leight. Lichenfl., p. 300: ad saxa arenacea prope Ke^\ : 



Wilson, n. 641, 638, 1043, 137o, 1413; ad saxa basaltica Yarra Bern! : 

 Wilson, n. 646. 



— — V. hydrophila Leight. Lichenfl.. p. 300 ; supra saxa schistosa 

 Glenmaggia : Wilson, n. 648. 



V. umbonifera Müll. Arg. ; thallus caesio-cinereus, tenuissimus. 



rimoso-areolatus, demum disrupto-areolatus et evanescens, superficie 

 laevis ; apothecia 1 V2 mm. lata, sessilia, haud adpressa, tota nigra, 

 pyramidali-acutata et in centro umbonata. — Saxicola in monte 

 Hotham, Victoria, alt. 5000 ped. : Wilson, n. 1403. 



88. Lecidea (s. Eulecidea) alboccerulescens Ach. Meth., p. S2; ad saxa 



rivuli Yarra prope Warburton : M^ilson. n. 786, 788: ad saxa quartzosa, 



