94 



latae; discus domum planus ; perithccium basi deficlens ; 

 epithecium nigro-fuscum ; lamina hyalina; hypothecium ob- 

 scure subhyalinum; asci 8-spori; sporae mox fuscidulae aut 

 fuscae, 4-loculareS; cylindrico-obovoideae^ utrinque obtusae, 

 14-17 fi longae, 5 6 f* latae. — Extus prima fronte Ope- 

 grapham simulat sectionis Lecanactidi s^ sed sporae non 

 liyalinae et peiitliecium basi incompletum est — Cortieola 

 ad Marabout in Oasi Katiyeli (Barb.). 



Opographa gyrocarpoides Miill. Arg.; thallus 

 tenuis, carueo-albellus, pulverulentuS; v. demura evanescens ; 

 apotliecia 1/4 mm. lata, dimidio v. fere duplo longiora quain 

 lata utrinque obtusa, pro magnitudine crassa, prominenter 

 crasso-margiuata, margines nigri, distantes, discus planus, 

 cinereo-pruinosus ; perithecium basi integre nigrum, hypo- 

 thecium fuscum; asci elongatoobovoidei, 8-spori; sporae 

 hyalinae, 6-loculares, late fusiformes, 25-33 ]« longae, 9-10^^* 

 latae. — llabitu Op. gyrocarpam Kbr. s. Op. saxi- 

 colam Ach. simulat, sed sporae G-loculares sunt. Ab Op. 

 varia f. pulicari (saxicola) Stizenb, recedit forma apotheciorum 

 et sporis majoribus. — Calcicola prope Alexandriam 

 (Aschers.). 



Chiodecton candidum Miill Arg.; thallus tartareus, 

 crassiusculus, caiidide albus, determinatus, continuus, supra 

 in verrucas tortuoso-irregulares leviter prominentes laevigatas 

 et hinc inde fere indistinctas oligocarplcas abiens, unde apo- 

 thecia irregulariter gregatim approximata; apothecla valde 

 inaequalia, ex orbicular! augulosa aut lobata, primum in 

 verrucis profunde inclusa, dein subemergentia et cinereo- 

 velataj nuda et atra v. fusco-atra, thallo marginata; margo 

 proprius niger et tenuissimus, apicem laminae attingens v. 

 etiam omnino obsoletus, hypothecium basi valde obconico; 

 incrassatum, epithecium fuscum, lamina fulvescenti subhyalina, 

 asci angusti, 8-s^pori; sporae hyalinae, fusiformes, 4doculares, 

 20 (i longae et 6 ^ latae, — Ex aifinitate Ch. albidi 

 Leight et proximum Cb. socotrano Mull. Arg., at thallo 

 albissimo, verrucis valde irregularibus aut pro parte sub- 

 indistinctis, apotheciis minus aggregatis et sporis minoribus 

 diversum est, — Calcicolum prope Alexandriam (Aschers.). 



Asterotrema Mull. Arg. gen. nov. Thallus evolutus 

 (in specie nota) nullus; apothecia peridialia, monohymenia, 

 ore demum astroideo - lobato - dehiscentia et discum paullo 

 denudantia ; paraphyses tenuissimae (spuriae) , clathratim 

 connexae; asci subarthonioidei; sporae e hyalino fuscae v. 

 fuscescentes, transversim divisae. — Genus juxta Astero- 

 porum prope Mycoporum locandum. 



