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PLEURAGE 55 
II. PLEURAGE Fries, Summa Veg. Scand. 2: 418. 1849. 
Schizothecium Corda, Icones Fung. 2: 29. 1835. Not Schizo- 
theca Ehrenb. 1832. 
Sordaria Fuckel, Symbol. Mycol. p. 244. 1869; Saccardo, 
Syll. Fung. 1: 230. 1882, etc. 
Podospora Cesati ; Rabenh. Herb. Mycol. no. 259; Hedwigia, 
I: 103. 1852; Ellis & Everhart, N. Am. Pyren. 128. 1892. 
Rabenhorst, Krypt.-Flora, 17: 169. 1887. 
Malinvernia Rabenhorst, Hedwigia, 1: 116. 1852. 
Philocopra Speg. Anales Soc. Sci. Argent. 192. 1880; Ellis 
& Everhart, N. Am. Pyren. 132. 1892. 
Perithecia scattered or aggregated, superficial or sunken, mem- 
branaceous or coriaceous, without stroma. Asci without functional 
internal membrane or apical perforation, stretching at maturity. 
Paraphyses ventricose or filiform-tubular, usually agglutinated and 
longer than the asci. Spores ellipsoid, with or without primary 
appendages, but always having attached to them at maturity two 
or more hyaline gelatinous secondary appendages of variable length. 
Key to the Species 
Asci 4-spored 
Perithecia smooth above substratum. 1. P. anomala 
Perithecia hairy above the substra i 
rimary appendages of spores a 2. P. Arisonensis. 
Primary appendages of spores eriam to a small triangular apiculum. 
P. taenioides. 
Primary appendages of spores elongated and cylindrical. 
Hairs of perithecium long, dark brown, sparingly septate and m 
in tufts on convex side of curved beak. erina 
Hairs of perithecium consisting of tufts of irregular CEN cells. 
. P. tetraspora. 
spore appendages present. 
Perithecia hairy above the substratum, 
Hairs agglutinated and idus of bunches of irregular cells. 
Spores uniseriate. . P. minuta. 
Spores biseriate. 7. P. curvula, 
Hairs short, scattered and bristly. 
Spores uniseriate. 8. P. minor. 
Spores biseriate. 
is appendage cylindrical. 9. P. amphicornis. 
Primary appendage short, only %-% ا‎ of ëtt and 
often mee supert 
Primary appendage pestle-shapgd. II. r مسر‎ 
