Revisions of Some Plant Phyla 21 



Family 78. Cucurbitariaceae. Perithecia clustered, sometimes 

 united into a compound asoigerous mass, hard, woody or leathery, 

 black or brown. JSIitschkia, Cncurbitaria. (Pf. I, i, 408.) 



Family 79. Amphisphaeriaceae. Perithecia either closely ad- 

 nate, or somewhat sunken into the matrix, generally hard and 

 carbonaceous; ostiole papilliform. Amphisphaeria, Strickcria. 

 (Pf. I, I, 413-) 



Family 80. Lophiostomataceae. Perithecia scattered, gener- 

 ally more or less buried in the matrix, carbonaceous or subcori- 

 aceous; ostiole an elongated slit. Lophiostoma. (Pf. I, i, 417.) 



Family 81. Mycosphaerellaceae. Perithecia at first subepi- 

 dermal, spherical, minute. Gitignardia, Mycosphaerella. (Pf. I, 

 I, 421.) 



Family 82. Pleosporaceae. Perithecia buried in the matrix 

 with only the papilliform ostiole projecting, membranaceous. 

 Physalospora, Venturia, Didymella, Didymosphaeria, Meta- 

 sphaeria, Pleospora. (Pf. I, i, 428.) 



Family 83. Massariaceae. Perithecia for the most part perma- 

 nently covered by the epidermis with only the papilliform ostiole 

 projecting, coriaceous. Massaria. (Pf. I, i, 444.) 



Family 84. Gnomoniaceae. Perithecia at first subepidermal, 

 later erumpent, with an elongated tubular ostiole, membrana- 

 ceous. Hendersonia, Gnomonia. (Pf. I, i, 447.) 



Family 85. Valsaceae. Perithecia permanently enclosed in a 

 stroma (compound), black. Anthostoma, Valsa, Diaporthe. 

 (Pf. I, I, 454.) 



Family 86. Melanconidaceae. Perithecia buried more or less 

 deeply in the cushion-like stroma ; saprophytes. Melanconis. 

 (Pf. I, I, 468.) 



Family 87. Diatrypaceae. Perithecia immersed in the stroma 

 in one or more series, elongated into neck-like projections; sapro- 

 phytes. Calosphaeria, Diatrype. (Pf. I, i, 472.) 



Family 88. Melogrammataceae. Perithecia immersed in the 

 stroma (hemispherical) forming under the periderm, then break- 



57 



