522 Pyrenomycetse, MfcrothyriaceEe, Seynesia. 



Hdb. in foliis Eugeniae sp. in silvis Bania de Corral Chile 

 Amer. austr. 



POLYSTOMELLA Speg. — Syll. IX p. 1063, XVI p. 639, XVII 

 p. 865. 



1. Polystomella nervisequia v. Hohn. Fragm. Mykol. VII (1909) in 5094 

 Sitzb. k. Ak. d. Wiss. Wien CXVIII, Abt. I, p. 850. — Stroma- 

 tibus superficialibus, opace nigris, rugulosis, minute granulosis, ir- 

 regulariter noduloso-elongatis, usque ad 700 a. long., 500 (j.. alt., 

 coriaceo-carbonaceis, facile secedentibus, plerumque in maculis hy- 

 pophyllis indeterminatis seriatim insidentibiis; contextu stromatico 

 parenchymatico ; loculis rotundato-ovoideis, 100-120^:^50-100, im- 

 mersis, approximatis, perpendiculariter dispositis, apice ostiolo ro- 

 tundato 45 ji. lato apertis; ascis clavatis, supra rotundatis ibique 

 tunica usque ad 5 [x. incrassata praeditis, basi in pedicellum bre- 

 vem crassum attenuatis, octosporis, 60-78 »13-14; paraphysibus 

 genuinis nullis; sporidiis hyalinis di- v. tristichis, elongato-cylin- 

 draceis, utrinque rotundatis, uniseptatis, 16-22 's^ 4-5. 



Hab. in foliis Berlinine sp., Usambara or. Africa} (Zimmer- 

 mann). — Cl. V. Hohn. I. c. contendit hoc genus cum Microcyclo 

 Sacc. et Syd. collidere et tunc Dothideaceas spectare, quod hucu- 

 que non satis probatum videtur. 



Sect. 3. Plueodidyiuje. 



SEYNESIA Sacc. - Syll. II p. 668, IX p. 1064, XI p. 381, XIV 

 p. 689, XVI p. 639, XVII p. 865. 



1. Seynesia elegantula Syd., Engler's Bot. Jahrbiich. 45. Bd. (1910) 6095 

 p. 263. — Peritheciis amphigenis, prsecipue epiphyUis, dimidiato- 

 scutatis, 400-600 jx. diam,, atris, irregulariter dehiscentibus, rugu- 

 losis, ambitu in hyphas radiantes fuscas septatas simplices vel ad 

 apices versus dichotome ramosas longissimas usque 1 mm. longas 

 et 6-7,5 a. numerosas amoene abeuutibus; myceho proprio parco 

 V. subnuUo; ascis clavatis, apice rotundatis, valde incrassatis, bre- 

 viter stipitatis, 60-85 « 20-28, octosporis; sporidiis distichis, oblon- 

 gatis, medio constrictis, utrinque rotundatis, primo hyalinis, dein 

 brunneis, 25-32 «9-11, loculo inferiore plerumque leniter angu- 

 stiore; paraphysibus filiformibus. 



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