374 PLANT DISEASES 



Nectria ipomeae, Halst., Rep. N. Jersey. Agric. Expt. 

 St., 1891, p. 281, figs. Perithecia in little clusters, conico- 

 globose, acutely papillate, verrucosely squamulose, red ; 

 asci cylindric-clavate, 8-spored; spores hyaline, cylindric- 

 oblong, i-septate, slightly constricted at the septum. 



A Fusarium condition is present with this species. 



Nectria pandani, Tul., Fung. Carpal., iii. p. 71 (as a foot- 

 note). Perithecia crowded, globose-ovate, papillate, pallid ; 

 asci cylindrical , 80 X 6 /* ; spores monost'ichous, shortly 

 lanceolate, straight, 10 X 4 p, i-septate. 



Often accompanied by a conidial form scarcely differing 

 from Acrostalagmus tinnabarinus, except in its pale colour. 

 The Nectria springs from pustules of Melanconium pan- 

 dani, Lev., of which it is suspected as being the ascigerous 

 condition. 



Nectria vandae, Wahrl., Orchideenwurzelpilze, p. n, 

 f. 20, 23, 24. Perithecia solitary or 3-5 or more in a 

 cluster on a reddish, well-developed stroma, pear-shaped, 

 red, very furfuraceous, substance thickish, white near the 

 ostiolum ; asci 8-spored ; spores obliquely i-seriate, ellipti- 

 cal, 8-10 x 4'4 p, i-septate, slightly constricted at the 

 septum, hyaline. 



Conidia cylindrical, ends rounded, 20-30 X 3'3-4'4 /*, 

 borne on long conidiophores, forming dense tufts. 



Nectria goroshankiniana, Wahrl., Orchideenwurzelpilze, 

 p. n, f. 17, 22, 25. Perithecia solitary or 3-5, rarely 

 more, in a cluster, seated on a reddish-brown, well- 

 developed stroma, ovoid, apex subacute, deep red, 

 squamulose ; substance thin, deep-red; asci 8-spored; 

 spores obliquely i-seriate, lanceolato-elongate, i-septate, 

 slightly constricted at the septum, tinged brown, 12-15 X 



