SPHAEROSTILBE 189 



rounded, 20-30 x 3'5-4'5 AS on long conidiophores, forming 

 dense tufts. 



Nectria goroshankiniana (Wahrl.) is parasitic on the roots 

 of Vanda tricolor. 



Perithecia solitary or in small clusters, deep red, squamu- 

 lose, spores, 12-15 X 4"S /* Conidia as in N. vandae. 



The above two species are described in detail by Wahr- 

 lich in Bot. Ztg., July 23, 1886. 



Nectria theobromae (Massee) occurred on a ' bleeding ' 

 patch of bark of a cacao-tree from Grenada, W. Indies. 

 This appears to be one of the species of Nectria that forms 

 'bleeding' wounds on the bark of the cacao-tree. Nectria 

 Bainii (Massee), previously described as forming similar 

 wounds on cacao pods, differs from the present species in 

 having the perithecia shaggy with golden-yellow, scale-like 

 hairs. 



Perithecia smooth, orange-red, asci cylindrical, 8-spored, 

 paraphyses present, spores elliptical, i-septate, 28-30x8-10 /*. 



Massee, Kew Bulletin, p. 218 (1908). 



SPHAEROSTILBE (TUB.) 



Perithecia, asci, and spores as in Nectria, but the perithecia 

 accompanied by a Stilbum3&. conidial stage. 



American coffee disease. Until quite recently Stilbum 

 ftavidum (Cooke) was supposed to be the cause of this 

 disease ; it is in reality yet the cause, but the Stilbum has 

 been shown to be the conidial form of a fungus that 

 has been called Sphaerostilbe flavida (Mass.). The disease has 

 been recorded from Costa Rica, Guatemala, New Granada, 

 Venezuela, Nicaragua, Dutch Guiana, and Brazil. The coni- 

 dial form attacks the foliage, berries, and young shoots. 

 On the leaves the fungus forms circular, whitish spots up to 

 J in. across, that show on both surfaces of the leaf. Such 

 leaves soon fall, and within a month the trees of an entire 

 plantation may be entirely destitute of leaves, yet loaded 

 with berries, which, however, do not reach maturity. One 

 or " two white spots appear on diseased berries. On the 

 young shoots the spots are whitish and usually elongated. 

 After the spots have been in evidence for a short time, the 

 surface becomes studded with the fruit of the fungus, under 



