272 Botanische Abtheilung des k. k. naturhistorischen Hofmuseums. 



Nordst., Ind. Desm. (1896), S. 64; Wildeman, Fl. Alg. de Belgique (1896), p. 158; 

 Comere, Desm. de France (igoi), p. 124 et tab. 8, fig. 12 a et b. 



Conspectus anatomicus! 



Belgia: in fossis turfosis prope Namur leg. J. Chalon, 



praep. F. Pfeiffer de Wellheim. 



Präparation: Venet. Terpentin, Chromessigsäure, Eisencarmin, Magdalaroth. 



Lichenes (Decades 21—22). 



751. Microglaena Hassel. 



A. Zahlbr. n. sp. 



Thallus epiphloeodes, sat tenuis, 0-17 — o-imm crassus, virescenti- vel olivaceo- 

 cinerascens, opacus, subverrucuIoso-inaequaHs, continuus vel irregulariter rimulosus, 

 effusus, in margine linea nigra non limitatus, KHO et GaCl2 02 immutatus, ecorticatus; 

 gonidiis palmellaceis, in glomerulos irreguläres, dispersos vel hinc inde confluentes 

 dispositis, globosis, 7 — 10 ^u in diam., hyphis sat dense contextis, pachydermaticis, 

 I — i'4ft crassis, I leviter vinose rubescentibus. 



Apothecia simplicia, solitaria, sessilia vel subsessilia, minuta, 0-2 — o-3 mm lata, 

 fere globosa vel depresso-globosa, pro maxima parte thallo obducta et demum solum 

 vertice nigro nitidoque libera; perithecio dimidiato, ochraceo-fuscescente, non celluloso, 

 KHO — ; ostiolo recto, punctiformi vel haud visibili; nucleo pallido, non oleoso, I im- 

 mutato vel levissime luteo, gonidia hymenialia non continente; paraphysibus connexo- 

 ramosis, eseptatis, filiformibus, circa x-^fi crassis; ascis copiosis, clavatis, rectis vel 

 modice curvatis, apice rotundatis, 90 — iio,« longis et 20 — 3o;u latis, versus apicem et 

 in superiore parte lateris raembrana incrassata, 8-sporis; sporis in ascis subbiseralibus, 

 ellipsoideis vel ovoideo-ellipsoideis, muralidivisis, e hyalino luteis et demum fuscis, am- 

 bitu ad septa leviter constrictis, loculis subcubicis, verticalibus 8—10, horizontalibus 4, 

 versus apices 2, septis parum distinctis, episporio tenui, 20 — 3>/^(i longis et 9 — i'i ^ 

 latis, NOS coerulescenti-aeruginosis. 



Pycnoconidia non visa. 



Eine auffallende rindenbewohnende Art der Gattung Microglaena, welche nach 

 der Beschreibung zu schliessen der Microglaena modesta A.Zahlhr. {Thelenella modesta 

 Nyl. in Act. Soc. Linn. Bordeaux, vol. XXI, 1856, p. 488 et Expos, synopt. Pyrenocarp., 

 1858, p. 63) nahe stehen dürfte. 



California: ad corticem Juglandis californicae in montibus Santa Monica 



leg. H. E. Hasse. 



752. Bilimbia chlorococca. 



Th. Fries, Lichgr. Scand., I (1874), p. 38o; Arn. in Flora (1884), p. 574 et Lichfl. 

 München (1897), p. 26. — Biatora hypnophila ß) chlorococca Graewe in Vetens. Akad. 

 Förh. (1862), p. 473. — Lecidea chlorococca Stzbgr., Lecidea sabulet. (1867), p. 24, 

 tab. II, B, fig. 1—6. 



Exsicc: Arn., Lieh, exsicc, nr. 1660; Lieh. Monacens., nr. 405. 

 Tirolia: ad ramulos Pini sylvestris ad margines silvarum prope Hall 



leg. J. Schuler. 



753. Bacidia Friesiana. 



Körb., Parerg. Lieh. (1860), p. i33; Th. Fries, Lichgr. Scand., I (1874), p. 857; 

 Arn. in Flora (1884), p. 579; Jatta, Syll. Lieh. Ital. (1900), p. 415. — Biatora Friesiana 



