310 ' THAXTER. — MONOGRAPH OF THE LABOULBENIACEjE 
Receptacle relatively large, hyaline, the basal cell tapering slightly downward, the subbasal cell slightly 
longer ami much broader distally. Perithecium : venter 55 X 30 fi; neck 75 X 10 //. Appendage about 
75 SO f t f stalk-cell 28 /i. Receptacle 110 X 25 /c. Total length to tip of perithecium 250-275 /*. 
On the inferior surface of the abdomen and at the base of the posterior legs of a species of Limno- 
}>h us. Berkeley, California. 
The material OO which this species is based was found on two specimens of Limnophorus sent from 
Berkeley with a miscellaneous lot of flies collected by sweeping. Although the perithecia are not quite 
mature, the characters of the* species are sufficiently well defined. S. Sarcophagce being the only form 
with which it is likely to be confused. The two are most readily distinguished by the appendage which 
is shorter, with more antheridia, in the present species. It is evidently somewhat proliferous, but I have 
been unable to determine the position of the spiniferous cell. 
Stigmatomyces humilis Thaxter. Plate XLVII, figs. 29-32. 
Proc. Am. Acad. Arts and .Sci., Vol. XXXVI, p. 401. June, 1901. 
Venter of the perithecium amber-brown, slightly inflated throughout and slightly asymmetrical; 
the neck rather abruptly distinguished, coneolorous, but paler distally, generally shorter than the venter, 
tout, tapering to the blunt, hardly differentiated apex; about one third of its length taken up by the tip, 
which is distinguished from it by a slight broad constriction; the outer basal cells subequal and irregu- 
larly prominent. Appendage relatively rather slender, very long, sometimes extending nearly to the 
middle of ihe neck of the perithecium, the stalk-cell separated by a slight constriction from the basal cell, 
which is relatively large, the annular thickening about the base on the inner side of its wall unusually 
well developed, amber-brown, bearing two antheridia; the subbasal cell almost as large, bearing two 
antheridia, the two successive cells above it smaller and bearing each a single antheridium; the series 
completed by a single terminal antheridium; the antheridial necks rather slender, and tapering, some- 
what oppressed. Receptacle short, stout, the cells subequal. Spores about 28 X 3 /*. Perithecium: 
venter 46-55 X 32-37 tt; neck 45-47 fx. Appendage 65-75 (x, the stalk-cell 18 (i. Receptacle 55 li. 
pe rith 
superior 
hosts from Ralum, New Pomerania. Berlin Museum, No. 1287. 
an 
This small and somewhat insignificant species is distinguished by its compact habit, the large venter 
m! n T u ° f US per ! thecium ' and its relatively large and elongate appendage, which may reach to 
the middle of the perithecial neck. Its terminal 
Stigmatomyces dubius Thaxter. Plate XLVII, figs. 14-18. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVI, p. 402. March, 1901. 
Amber-brown with the exception of the receptacle and the stalk-cell of the perithecium. Venter of 
the pen la, mm shghtly inflated, relatively small, not abruptly differentiated from the broad neck, which 
gradually enlarges distally below the rather abruptly tapering, slightly bent tip; the middle of the three 
posteno projects from the lip-cells larger and longer than the others and bent over so as to overlap 
1 wl T r » S ;, W ', T Cl,rVe ' 1 abFUptly tOWard it; the tvvo hltt ' ral P«*e*>r projections prominent 
I csta lv iT I' mi ; "^ rath0r Slender ' aml ^y «** m ™* Stalk-oeU of the append- 
e d t dl arker, abruptly promment below the basal cell, which is small, squarish, and deeper brown; 
^l^jr ^' ^u 1S lmUSUaUy l0ng ' "»■"■* Proliferous above the spinilrous cell, 
^tt^eKH Tr SSed USUally ^ a lateral SeHeS - Re -P ta ^ ~^vely large, hyaline, 
Spores 30 X 3.5 /*. renineeium: venter 58 
25-32 /<. Receptacle 145-185 X 25-30 
Appendage 80-95 /*, stalk-cell 
fly wnh monstrously developed anterior legs resembling those of Ochtheria mantis. Ralum, 
350-37 
n of a muscid somewhat larger than the other » t 
