26 pah kin : PUNOI parasitic 



The subgenera Ku-Xectria and Dialo-Nectria, as already 

 indicated, are distinguished from each other according to 

 the presence or absence of a fleshy stroma, and as to whether 

 the perithecia occur in clusters or solitary. This is a some- 

 whit arbitrary distinction, at any rate as far as these scale 

 Nectriasare concerned. One and the same species might be 

 placed with equal justification, in either subgenus. Lindau, 

 in "Die Pflanzenfamilien"* says the genus requires mono- 

 graphing, since the alleged subgenera are insufficiently 

 marked off from one another. 



It is to be noted that this bamboo Nectria was growing on 

 a scale belonging to a different sub-family, the Lecano- 

 diaspidina?. 



As already pointed out, a curious feature about the scales 

 on this bamboo was the restriction of the Nectria to those 

 on the upper surface of the leaves. On those of the lower 

 side occurred aVorticillium. This will be referred to in detail 

 under the Fungi-imperfecti. It may possibly be connected 

 with the Nectria. Verticillium is known as a conidial stage 

 of a Nectria.f 



Genus Lisea. Sacc. 

 This genus differs from Nectria in having blue or violet 

 perithecia instead of red ones. A new species, named 

 /,. ParlatoricB,$ has been described by Zimmermann, 

 parasitic on a scale-insect. It was found at Buitenzorg, 

 .lava. <>n Parlatoria :/://///// on Citrus leaves. No conidial 

 stage is mentioned. The genus is known to have one of the 

 iriam '.Vpe- Lieea has not yet been found on scale- 

 insects in Ceylon. 



(?) Genua ( lalonectria, de Not. 

 On two occasion h Mr. (Jreon has supplied me with leaves 

 infested with scale, on whieh were situated perithecia agree- 

 ing closely with those of Oaloneotria. 



♦ T.,11. abtheil.I., p. 



| Baooudo, S I i II p. 511.; Neotria solani. 



' XiminiTliiMiili, ,„ . ,-it . 



