312 



537. Slastenia lagostana A. Zahlbr., dov, spec. 



Thallus crustaceus, uniforrnis, pars epilithiea valde tenuis. sub- 

 cretaeea, eflfusa, lutescenti-albida vel passirn cinerascens, opaca, KHO 

 dilute kermesina, continua, passim subpulveracea, sorediis et isidiis 

 destituta, in margine linea obsciriore non limitata, sed modice exa- 

 rata; thallus superne strato corticali ex hyphis subperpendicularibiis, eonglu- 

 tiuatis et inspersis formato obductus ; gonidia glomerata, glomerulis plus 

 minus dispersis, in parte superiore tballi dispositis, cellulis gonidiorurn 

 5 — 9 ft latis; Stratum medulläre ex hyphis laxis, subtorulosis vel flexuo- 

 sis, 3 — 5 ft crassis, ramosis. cellulas macrosphaeroideas non gereniibus 

 formatum. 



Apothecia biatorina, sessilia, dispersa, rarius approxiraa^a, parva, 

 0'2 — 8 mm lata, rotunda, mox convexa vel fera semiglobosa, croceo- 

 fusca, subopaca ; margo propius primura valde tenuis, subinteger, 

 parura prominulus, acutiusculus, demura depressus; exeipulum integrum, 

 ex hyphis radiantibus, tenuibus, eseptatis et couglutinatis formatum, ad 

 margmem auraiitiaco-inspersum; hypothecium lentiforme, cinerascens, ex 

 hyphis dense intricatis formatum, J — ; paraphyses strictae, filiformes, 

 sirapliees, eseptatae, ad apicem vix latiores; asci oblongo-clavati, 

 8 spori; sporae in ascis plus minus biseriales, decolores, ellipsoideae vel 

 subovales, placodiiformes, luminibus apicalibus ca. V4 longitudinis 

 sporarum metientibus, tubulo angusto junctis, 10 — 12 ^ longae et 

 5 — 6 fi iatae. 



Pycnoconidia non visa. 



Lagosta: Glavica beim Orte Lagosta, 100 — 180 ra auf Kalkfelsen 

 (B a u m g a r t n e r). 



Eine auffallende Art der Gattung, für welche ich, wenigstens so- 

 weit es die europäischen Arten betrifft, keinen näheren verwandtschaft- 

 lichen Anschluß finde. 



538. Blastenia ulbensis A. Zahlbr., nov. spec. 



Thallus eudolithicus, extus macula effusa, continua, ochraceo- 

 vel cinerascenti-albida indicatus, sorediis et isidiis destitutus, in 

 margine linea obscuriore non cinctus; Stratum corticale angustum, ex 

 hyphis parum distinctis et intricatis formatum ; medulla ex hyphis sat 

 laxis, reticulatis, subtorulosis et leptodermaticis composita ; gonidia pal- 

 mellacea, glomerata, glomerulis plus minus dispersis, cellulis globosis, 

 usque 24 ft latis; cellulae macrosphaericae desunt. 



Apothecia biatorina, sessilia, dispersa vel approximata, primum 

 urceolata, margine accesorio albido bene priminulo, demum leviter con- 



