Bruner: New Species of Endothia 
241 
mains rather thin and clinging, becoming pale-buff when old. 
Cultures fifteen days old show numerous large pale-yellow or buff 
pycnidia on the cut surfaces and a smaller number scattered over 
the bark. These in many cases exude moist masses or tendrils 
of orange-yellow spores. Further changes consist mainly in the 
formation of additional pycnidia and a somewhat heavier growth 
of surface mycelium. 
Cultures on Potato Agar . — Single ascospores when transferred 
to tubes of potato agar produce in one week hyaline growths which 
extend on the surface from 4 to 10 mm. from the point of inocula- 
tion. The submerged growth is somewhat less extensive. The 
advancing edges are irregularly denticulate and slightly undulate 
in outline, and the surface presents a gently contoured, somewhat 
fluted appearance. In from 8 to 10 days after inoculation num- 
bers of yellow pycnidia are formed in a group on the lower por- 
tion of the slant. These are more or less connected by a short 
cream white growth of surface mycelium. Except for a small 
amount of dowuiy wdiite mycelium at the upper edge of the 
medium and an occasional tuft at the point of inoculation, no 
other surface grow'th of any kind is developed. The pycnidia 
soon after their formation emit masses of orange-yellow' spores. 
No submerged color is produced and, except for the gradual dry- 
ing of the medium, there are no further changes of any kind. 
Endothia havanensis sp. nov. 
Stroma innate, then erumpent, gregarious, at first bright-yellow', 
later orange-colored, finally yellow'-brown when very old, in- 
terior immediately surrounding perithecia lighter in color than 
outer layers, cream-white or pale-buff in newly formed stromata, 
commonly roundish wart-shaped to sub-elongate, 2-15 X 2-4 
mm., varying according to the situation in which formed. Peri- 
thecia black, globose with long necks, deeply imbedded in stroma, 
usually 275—400 fji in diameter ; ostioles dark, distinct, exserted 
on slender protuberances of varying lengths, these commonly 200— 
1000X90-135/^; asci sub-clavate, eight-spored, aparaphysate, 
33-41 X 5-7-5/^; ascospores subdistichous, fusoid, tw^o-celled, con- 
stricted at the septum, usually minutely guttulate, hyaline, often 
slightly inequilateral, 7.47-9.54 X 2.92-4.15 /u, ; pycnidia formed 
as irregular cavities in the stroma ; pycnospores minute, rod- 
shaped with rounded ends, hyaline, 2.9-4. 5 X .83-1.66 /x; erupt- 
ing from indefinite ostioles in yellow or orange-yellow tendrils. 
