iQ2o] THAXTER— FUNGUS-PARASITES 13 



to the Florideae or the Laboulbeniales, that "there seems not the most remote 

 possibility that such is actually the case." 



Coreomycetopsis, nov. gen. — Axis consisting of an indeter- 

 minate series of superposed cells, the basal one modified to form a 

 characteristic foot attached to the host; the distal portion trans- 

 formed into a sporogonium, its successive septa being destroyed, or 

 absorbed, through the upgrowth of sporophores which spring 

 endogenously from numerous divisions of an intercalary cell, 

 and ab joint terminally simple hyaline spores; which, after being 

 set free in the sporogonium, are discharged through a terminal 

 perforation. 



Coreomycetopsis oedipus, nov. sp. (figs. 32, 36). — Nearly hyaline 

 or faintly yellowish, the foot large, strongly concave externally, 

 pointed below, its insertion flattened, wholly concolorous with 

 the remaining cells. Axis usually bent strongly outward above 

 the foot, consisting of 10-15 cells, including the latter; the sixth or 

 seventh from the apex becoming proliferous, after dividing to form 

 a central subpyriform cell and numerous small lateral ones, which 

 are obliquely separated, and grow up through the lumina of the 5 

 or 6 cells above, abjointing terminally long oval spores somewhat 

 pointed at the base; the cells above, and including the proliferous 

 cell, transformed into a straight symmetrical sporogonium, clearly 

 differentiated, and fusiform or obclavate in outline, broader than 

 the 4-6 subequal stalk-cells which connect it with the foot. Total 

 length 100-135/z. Sporogonium 45-60X12-15 /z; stalk 10 ju; foot 

 25X12-15/1; spores 8-9 X 2-2 . 5 \i. 



On the tips of the legs of Eutermes morio var. St. Luciae, Grand Etang, 

 Grenada. 



This form is usually solitary, attached to the terminal joints of the legs, 

 and from its pale color is not readily seen, although it is larger than many 

 Laboulbeniales. Its remarkable analogy to Coreomyces is suggested by the 



spores were formed 



tory 



perithecium 



form 



markably similar. The destruction of the 

 cavity of the sporogonium does not appear to be due wholly, at least, to the 

 upward pressure of the traversing sporogenous elements, since these cells 

 evidently begin to disorganize as soon as the first intercalary divisions appear 



