UPON SCALE-INSECTS. 27 



]. — On Mytilaspis citricola on orange leaves. 



The perithecia occurred in groups, each resting on a small 

 mat of hyphae proceeding from the scale. No stroma was 

 seen. They were pale brown in colour, globular in shape 

 with a wort-like ostiole (pore), and measured 217/* in dia- 

 meter. The ascus (70-84 x 12-14/*) contained 8 spores some- 

 what irregularly arranged (fig. 20). The spindle-shaped 

 ascospore (fig. 21) was conspicuously biseptate and less so 

 4-septate perhaps owing to immaturity and measured 30-46 

 x 6*5-7/*. Its lower end, as situated in the ascus, tapered 

 with a blunt point, the upper end being acute and sharp. 

 2. — On Chionaspis vitis on leaves of Lor anthus, sp. 



Similar to l,but the perithecia were dark brown and seem- 

 ed old ; 320/* in diameter. The ascus measured 85 x 16/*, and 

 the spore 55 x 7*5/* ; it was 5-septate (fig. 22). 



No conidial fructifications were found in connection with 

 either of these supposed Calonectrise. 



Genus Ophionectria, Sacc. 

 A f ungusallocated to this genus and named O. coccicola (Ell. 

 and Ev.) Berl. and Vogl.* was found on a living coccid 

 on the leaf of Citrus in Florida. Zimmermannt has dis- 

 covered it in Java on Parlatoria zizyphi, and suggests the 

 possibility of its having been imported from America. He 

 describes the conidial stage of it for the first time. It has 

 not been found as yet in Ceylon. 



Genus Sphcerostilbe, Tul. 

 The perithecia of Microcera coccopJdla, a conidial form 

 first discovered on scale-insects by Desmazieres,J were 

 described by Tulasne§ in 1865 and named Sphcerostilbe 

 coccophila. Since then similar perithecia have been found 

 connected with this Microcera in the United States. Though 

 the conidial form is common in Ceylon, perithecia have not 

 yet been found. 



* Saccardo, S. F., vol. IX., p. 996. 



f Zimmermann, loc. cit. 



X Desmazieres, loc. cit. 



§ Tulasne, Carpolopfia, vol. III., p. 105. 



