20 BOTANICAL GAZETTE ' [january 



and sessile; and A. media, which is somewhat larger and more 

 distinctly stalked. A second genus, Myriopodopkila, is also created, 

 with a single species, M. argentina, the only basis for which appears 

 to be a slender habit. All of these 4 species are represented in the 

 figures as octosporic, although this character is not mentioned in 

 the text. I should personally be reluctant to separate either of 

 these forms from Amphoromorpha, and the species of Amphoropsis 

 are certainly congeneric with the types illustrated in figs. 44 and 46. 

 Since the material of the species represented in fig. 44 is sufficiently 

 abundant and has been observed on two different genera of roaches, 

 it seems worth while to append a description, although all the 

 individuals examined are at the same point of development, the 



* 



sporogonia being completely filled with spores. 



Amphoromorpha Blattina, nov. sp. (fig. 44). — Yellowish, sessile, 

 with a large dark foot. Form elongate oval, somewhat broader 

 distally, the apex rounded. Spores between 50 and 100, about 

 5/x in diameter. Total length of sporogonium 55-70 X 18-20 /x r 



exclusive of the foot, which is 18-22X18/1? se$n in front view. 



t .. . 



On the axis of the antennae of a dark wingless and a pale winged blattid, 

 nos. 2938 and 2939, Grand Etang, Grenada, B.W.I. 



This species is similar to A. media in size, but differs in its form, its sessile 

 habit, and its much more numerous, smaller spores. It is apparently confined 

 to the axis of the antennae, where it grows among, but not on, the hairs. A 

 second species inhabiting the hairs, and not the axis, was found in the same 

 locality on a different host, and is represented in fig. 46. This form is character- 

 ized by a somewhat different shape, its smaller size, and transparent, hardly 

 suffused, foot. 



\ 



Astreptonema Hauptfleisch, Ber. Bot. Gesells. 13:83. pi. 8- 

 1895. — ^ n a paper entitled "Astreptonema longispora, n.g., n. sp., 



eine neue Saprolegniaceae," Hauptfleisch has described a pe- 

 culiar organism which grows attached to the chitinized end of the 

 rectum of Gammarus locusta, consisting of a simple, unicellular, 

 multinucleate filament, attached at its base, and distally producing 

 a series of successively formed spores, or rather of spore mother 

 cells, within which single definitely walled spores are formed, at 

 first uninucleate, and later containing as many as 8 nuclei. These 

 spores are formed in large numbers and are eventually freed by 



