2 Perisporiaceae, Erysipheae, Microiphaera. 



diarn. atris, glabris, membranaceo-coriacellis, contextu parencliy- 

 niatico, parum perspicuo, fuligineo, basi 20-40 appendiculis radian- 

 tibus ornatis; appendicibus divaricatis, 100-130-4-7, utrinque gra- 

 datim attenuatis et levibus, medio sa^pius incrassatuiis ac minu- 

 tissime densiusculeque granuloso-papillatis, apice sajpius semel plus 

 minusve circinatis (rarius rectis atque obtusatis) hyalinis; ascis 

 et sporidiis non visis. 



Hah. ad folia viva Myrtacea^ cujusdain prope Paraguay 

 Ilrasil. 



PLEOCH/ETA Sacc. et Speg. — Sacc. Svii. I, pag. 9. 



1. Pleochaeta Curtjsii Sacc. et Speg. Fungi .\rg. Pug. II, pag. 44, 32 

 et Sacc. Syll. II, p. 9, Uncinula polychcBla Berk. et Curt. Grev. 

 1S76, p. 159 et Ellis in Journ. of Myc. 1880, p. 43, Unchiula 

 Lynckii Speg. Fungi .\rg. Pug. II, p. 17, n. 54. — Perithecia 225- 

 230 u, diam., appendicihus numerosis circ. 200, hyalini.s, continuis, 

 apice attenuatis et incurvatis ornata et ascos circ. 50, bisporos con- 

 tinentia. — Cl. Ellis, in Journ. of Myc. I. c, speciei Spegazziniana? 

 et Uncinulcc polijchcvtcc B. et Curt. identitatem comprobavit . 

 hinc nomen Pleochcetcv Curtisii servandum. 



MICROSPH/ERA Lov. — Sacc. Syll. I, pag. 10. 



^13. Microsphaera erineophila Peck in Torr. Bot. Club. 1883, p. 75. r.i 

 Mycelio arachnoideo, subpersistente ; peritheciis 75-100 a. diam., 

 sa3pe collapsis vel pezizaiforraibus; appendiculis 6-12 cir. diam.; 

 perithecii longitudinem a^quantibus vel minoribus, coloratis, apice 

 pallidioribus bis, ter dichotome ramosis ; ascis 4, srepe 3-vel 5, 

 octosporis; sporidiis 20-23 ;; 10-12, s;Tpe 1-2-nucleatis, 



Ilab. in foliis Fagi, Erinco invasis, lllinois, Amer. bor. (.\. 

 15. Sky.mour). 



*I5. Microsphaera Nemopanthis Peck in 38 Rep. St. Mus. pag, 102. r,i 

 — Mycelio arachnoideo, parco, amphigeno; appendiculis raris, 5-12, 

 longitudine diametruni peritheciorum non vel vix aequantibus. in 

 cymam 4-5-ies dichotomam desinentibus, coloratis, saepe basi fur- 

 catis, ramulis extimis recurvis; ascis saepe quatuor, 6-8-sporis. 



llab. \\\ foliis vivis Nemopanthis canadensis, Karner 

 .\mer. bnr. — llabitu M. Berbcriclis similis, sed ascis minus nu- 

 merosis et appendiculis coloratis mox distinguenda. 



26. Microsphaera densissima (Schw.) Peck 28 Rep, St. Mus. Sacc. s^ 

 Syll. 1. {). 15, Ell. ct .Maif. in Journ. of Myc. 1885, p. lOl. — Pe- 



