238 A Monograph of the Erysiphaceae 



various authors. From the description of the appendages the 

 plant evidently does not belong to the genus Phyllactinia — very 

 probably not to the Erysiphaceae at all. The diagnosis given, 

 however, is much too incomplete to admit of an identification of 

 the plant, and if, as seems to be the case, no specimens exist, the 



name should be dropped. 



ErysipJic ncrviseqida Westend. Bull. Acad. Roy. Belg. 21 : 

 231. 1854. Westendorp's description is as follows : '* Subicule 

 nul, peridium punctiformc, trcs-petit (i/io^ de mille de diamctre), 

 globuleux, d'abord orange, puis brun ct enfin noir, luisant, atta- 

 che par quelques fibrilles rares au support et contenant un seul 

 peridiole globuleux — Cette espece, qui forme des lignes pointillees 

 sur les nervures de la feuille . . . se developpe sur les deux faces 

 des feuilles du Stachys palustris'' Namur, Belgium. I have 

 seen specimens from Westendorp's herbarium (as well as others 

 sent to me by Professor Paque as ErysipJic conivniiiis var. labia- 

 taruDi), and find that the fungus does not belong to the Ery- 

 siphaceae. The perithecia are from 70-80 fx in diameter, rather 

 irregular in shape, but more or less globose-depressed, with a 

 fragile, membranous wall composed of small rather distinct dark 

 brown cells, 4-5 /i wide. The perithecia occur scattered sparingly 

 on both sides of the leaf, and also occasionally in denser patches 

 on the stem. The so-called ** peridiole" is in reality a multicel- 

 lular structure, and is perhaps the separating inner wall of the 

 perithecium. Within this oval or spherical structure, some bodies 

 which resembled very young ascl were obser\^ed, but none of the 

 material examined was ripe enough to allow of the generic identi- 

 fication of the fungus. It seems probably, however, that the 

 plant will prove to belong to the Eurotieae. 



Erysibe andreaeaccamm and E, chroohpidis Reinsch. Contrib. 

 Algol et Fungol. 96 (1874-5) belong to the Algae. Hariot 

 Qourn. de Bot. 3: 405. 1889) states that the latter species is 

 Trcnttpohlia Monilia de Wildem. (see however, Magnus, 21<S), 



? Phyllactinia fungicola (Schulz.) Sacc. Syll. Fung. I : 6. 

 1882. ErysipJic fungicola Schulz. Oest. Bot. Zeit. 26 : 58. 1876. 



Saccardo gives the following diagnosis : " Peritheciis brunneo- 

 fuscis, sphaericis, 300 /i. diam., subiculo mucedineo stellatim 

 effuso insidentibus ; conidiis in hyphis acrogenis brunneis ; appen- 



