49i? Pyrenomycetae, ^^phseriacese, HValcKlidymfP, Diaporthe. 



(Bopway). — Stromata saepe conidiis elliptico-oblongis, .paUide 

 brunneis, 1-sept^tis, 18-21 ^ 4-5 fcecta. 



MYRM/ECIUM Nke. et Furk. — SvH. I p. 600. 



1, Myrmaecium endophaBum Speg^. Fg. Arg. novi v. crit , pag. 268 n 

 (1^99). — Acervulis e peritheciis botryoso-aggregatis compositis, 

 cortice insidentibus, per epidermidem erumpentibas, parvulis, 1-5 

 mm. diam.. '/, mm. crassis; peritheclis subliberis, dense eongestis, 

 globosis. 180-200 {x. diam., vix papiHalato-ostioiatis, levibns, atris, 

 membranaceo-coriacelhs. contextu parenchymatico olivaceo-atro 

 . fere indistincto, stromate extus cinerescente intus atro insidenti- 

 bus; ascis cylindraceis, antice obtusissimis, postice leniter atte- 

 Tiuato-sti])itati8. 60-70-6-10, aparaphysatis octosporis; sporidiis 

 oblique monoetichis, ellipsoideis, rectis rel vix in?equiiaterahbus, 

 ■utrinque subacutiusculis, 10-14^4-5, primo l-aeptatis hyalinis, 

 dein 1-septato-constrictulis fumosis, hjculis 1 -guttulatis. 



Ilai. ad ramos emortuos Gleditschix' Triacanthi in sil- 

 vula Santa Catalina pr. Buenos Aires Argentinaj. 



MELANCONIS Tiil. — Syll. I p. 602. IX p. 700, XlV p. 543. 



1. Meianconis ambigua Mout. lY Not. Ascom. nouv. p. 43 (Bull. soc. 17? 

 bot. Belg. lyOC.)). — Peritheciis globosis, nigris, glabris, '/^ mm., 

 paucis, sine stromate distincto sub peridermio relaxato circinanti- 

 bus, (|uandoquc irregQiariter acervatis. coUis diametrum. perithecii 

 non excedentibus, conniventibus. apic*^ attcnuatis, nonnumquam 

 abbreviatis, per periderm.ii fissuras vix prumpentibus; ascis tere- 

 tibus breve pedicellatis octosporis, 170^ 12; paraphA^sibus lineari- 

 bns, longi?>. guttulatis; sporidiis monostichis, eliipticis, medio se- 

 ptatis et leviter constrictis, eguttatis, hyalinis, 10-24 «9. 



Hah. in ramulis Betuhe albse, Spa, Beaufays prope Liege 

 Belgii. — Quoad genus, quodammodo dubia. Partibiis internis 

 omnino convenit cum HenosjMra Tilue. 



DIAPORTHE Nits. — Syll. I p. 60(5, IX p. 702, XI p. 307, XIV 

 pag. 54.^. 



1. Dlaporthe (Chorostate) Plantaglnis F. Tassi Bull. Lab. Ort. Bot. 178 

 Siena 1900, pag. 120. — Stromatibus valseis, discretis, obiongis, 

 nigris, inna^o-eTumpeiitibus, peritheciis circinnato-monostichis, glo- 

 bosis, in singulo stromate circiter 5-6, subnigris, intus albis, 1 mm. 

 diam., ostiolis parum prominulis; ascis subcylindraceis, 2-foveolatis, 



