THAXTER.— LABOULBENIALES PARASITIC ON CHRYSOMELIDAE. 37 



relatively large, sometimes nearly as long as the rest of the receptacle; 

 cells II and VI subequal in length; cell II usually broader; cells III 

 and IV often about equal their septa oblique, their external margins 

 convex; cell V small, extending to cell III; cell VI and the basal cell 

 above it, externally convex. Insertion-cell free, rather thick, black, 

 pointed above. Basal cell of the outer appendage rather deeply 

 suffused with olive-brown, somewhat long and narrow; bearing 

 distally, or distally and externally, a series of two or three branches, 

 similar, radially arranged with blackened basal septa; their basal 

 cells broader distally, short and stout and bearing one to three second- 

 ary branches in a similar fashion, this branching being variably re- 

 peated; the cells of these branches and branchlets similar, hyaline, 

 with distal external suffusions; the ultimate branchlets few-celled, 

 hyaline, curved toward the tip of the perithecium which they barely 

 reach; all the septa of the partly suffused cells deeply blackened: 

 basal cell of the inner appendage about half as large, becoming pushed 

 somewhat sidewise and bearing distally a series of two or three branches 

 radially arranged, or slightly oblique, which are similar to those of the 

 outer appendage. Perithecium arising opposite the inner upper angle 

 of cell III; concolorous with the receptacle, or more olivaceous; 

 usually rather strongly curved, and tapering from near the base to the 

 rounded apex; which is usually narrow, but hardly differentiated 

 mostly long and slender, slightly enlarged at the apex, the lip edges 

 not prominent, the inner hyaline: the wall-cells indicated by dark 

 lines, the longitudinal ones having a spiral tendency sometimes 

 lacking, so that the apex may be seen in anterior or posterior view 

 and appear broad and subtruncate. Perithecia 70-100 X 18-20 jj.. 

 Spores very slender, the distal half about as long as the basal, attenu- 

 ated to a fine point bent abruptly sidewise, about 55 X 3 /x. Recepta- 

 cle 70 X 24-28 /jl; larger form 100 X 28 fx. Appendages about 70 m- 

 Total length to tip of perithecium about 140-160 /*; the larger type 

 sometimes 230 yu. 



On the elytra of Podontia lutea Oliv., No. 2507, Hong Kong; No. 

 2508 on P. 14-punctata Linn., Himalayas, both in M. C. Z. 



Although the material of this species is abundant, no specimens are 

 in perfect condition, the appendages apparently breaking very readily. 

 It varies very greatly in size and form, many pigmy individuals occur- 

 ring near the middle and base of the elytra, in depressions of their 

 surface. In these small stout forms the receptacle is compacted and 

 reduced, cell I forming a short hyaline stalk; cells III and IV promi- 

 nent at the side; while the rest are hardly distinguishable from the 

 base of the stout, small perithecium. The material from P. 14-punc- 



