Pyrenomycetfe, Sphserlacese Ascospora. 71 



Sect. 2. Hy.alosporae. 



PHTHORA CHerelle, Bull. Soc. Myc. Fr. XXV (1909) p. 184 oum 

 tab. IX (Etym. a ptheiro destruo). — Stroma pelliculosum, mini- 

 mum, uigrum, subcorticale, hinc inde carbonaceo-compactum, cor- 

 ticem olevans, cellulosum, nigrum, applauatum, forma irregulari. 

 Perithecia superficialia, poro dehiscentia, gregaria, subseriata, mem- 

 branacea, glabra, sessilia, nigra ; frequenter duo aut plura seriatim 

 cohcerentia, membrana separationis subinde evanescente et tunc 

 perithecia tubum (?) maxime protensum efformant. Asci sphgsrici, 

 brunnei, scssiles, aparaphysati ; sporidiis simphcibus, sphoericis, 

 hyaHnis. 



1. Phthora vastatrix D'Herelle 1. c. Characteres generis. Perithecia 3527 

 bene evoluta 50 « 38, nucleo viscoso. Asci 5-8 [j.. diam. octospori. 

 Sporidia minutissima, sphgerica, 1-2 [j.. diam. hyalina. Hyphse my- 

 celii ramos;e, sej)tatae, 2-8 |x. cr. demum nigricantes. 



Ilab. in libro Coffea3 arabicce, cui valde noxia, in Guate- 

 mala. E diagnosi et figuris 1. c. species parum clara et quoad af- 

 finitates perdubia. 



ASCOSPORA Fr. Summa Yeg. Scand. p. 425 (1849), Wint. Krypt. 

 Flora, Pilze II, p. 340 (1887) (Etym. ascus et spora). — Perithe- 

 cia initio subcuticularia, minuta, poro pertusa, membranacea sub- 

 globosa, ut plurimum mycelio ramoso, adpresso, brunneo insidentia 

 v. cincta. Asci perexigui, aparaphysati ; sporidia ovato-oblonga, 

 hyalina, continua, rarissime basi pseudoseptata. — A Guignardia 

 prsesertim mycelio soepe asteromatoideo et minutie dignoscitur. — 

 Ad hoc genus pertinent; Ascospora Siienes (Niessl) Wint. {Aste- 

 rina Silenes [Niessl] Sacc. Syll. I, p. 47); A. melaena (Fr.) Wint. 

 [Asterina meloma (Fr.) Sacc. Syll. I. p. 48); A. Himantia (Pers.) 

 Wint. [Asterina Himantia (Pers.) Sacc. Syll. I, p. 761); A. micro- 

 scopica Niessl (Asferina microscopica (Niessl) Sacc. Syll. I, p. 45. 



1. Ascospora graminis Lind, Fungi (Micromyc.) from North-East 3528 

 Greenland (19 10) pag. 152, tab. X, fig. 1-2. — Mycelio repente, 

 effuso, subpersistente, hypophyllo, fusco e hyphis torulosis, ramo- 

 sis, septatis composito; peritheciis superficialibus, applanato-con- 

 vexis, sparsis 80-100 \x. diam., medio perforatis; ascis fasciculatis, 

 globoso-ovatis, sessilibus, apice crasse tunicatis, aparaphysatis, octo- 



