306 THAXTKR. — MONOGRAPH OF THE LABOULBENIACE^E. 
basal oil; the fertile cells usually five in number, the antheridia with short curved divergent necks and 
produced in pairs, except the terminal one, which is conspicuously spiniferous, the whole series usually 
obliquely external. Receptacle hyaline, the basal cell mostly larger, longer, tapering below. Spores 
about 36 X 3.5 ft. Perithecium: venter 90-100 X 36-44 {i; neck 108 X 10-15 ft. Appendage 47-55 ft, 
the stalk-cell 25-30 }i. Receptacle 65-100 ;x. Total length to tip of perithecium 300-325 p.. 
< >n the abdomen and legs of Srapiomtpa graminum Fallen. Kittery Point? Maine; vicinity of Cam- 
bridge, Mass.; Berkeley, California. On Scaptomyza sp.?, Caracas, Venezuela. (Blakeslee). 
A very characteristic and common species usually growing in tufts on the upper or lower surface of 
the abdomen, the specimens from the three somewhat remote regions above indicated not showing any 
noteworthy regional variations. It is distinguished by its compact tapering appendage, with biseriate 
intheridia, and the unusually abrupt distinction between the rather slender neck and tbc distally often 
very considerably broadened venter of the perithecium. The host is common in New England during 
the late summer and autumn and may be readily captured by sweeping over flowers like mignonette or 
clematis or in grassy meadows. The South American specimens do not appear to be essentially different, 
although somewhat more long and slender, the distal portion of the venter rather abruptly swollen and 
slightly granular. The spiniferous cell in this species is terminal and becomes an anthcridium, fig. 41. 
Stigmatomyc es pauperculus Thaxter. Plate XLIX, figs. 18-19. 
Proc 
July, 1905. 
Short and stout, dark amber-brown, except the hyaline receptacle, and the anthcridial portion of 
the appendage. Venter of perithecium short, stout, inflated; more or less distinctly granular, abruptly 
distinguished from the neck, which is slightly inflated above the middle, distally curved, and slightly 
symmetrical and blunt 
Re- 
ceptacle hyaline, rather short, the cells subequal, abruptly distinguished from the parts above. Stalk- 
cell of the appendage short and prominent, separated from the darker basal cell by an abrupt constriction; 
the rest of the appendage very broad, short, hyaline, curved inward; consisting of three superposed cells 
and the terminal antheridium, the total number of antheridia eight (possibly nine), scarcely more than 
their small necks free. Total length to tip of perithecium 165-175 ft. 
40-45 
35- 38 
Appendage, (including basal cell 16-20 ft), 58-65 X 15 ft. Spores 32X3//. 
Xo. 1291. 
Muse 
Although based on only three specimens this species seems sufficiently well marked, by its broad 
fan-like antheridia] appendage, to warrant separation from other known forms. It should be remembered, 
however that abundant material may show a greater development in luxuriant specimens, both of the 
receptacle and perithecium. The terminal antheridium is spiniferous. 
SnGKATOMYCHS MlcKANDRis Thaxter. Plate XLVII, figs. 19-24. 
Proc ' Am - Acad - Arts aad Sci., Vol. XLI, p. 312. July, 1905. 
Venter of the perithecium, together with its basal cells and the stalk-cells of the appendage, d«k 
a nl„.,- , row,, .,vM,n (;t n,allv oval, or typically subcorneal; at maturity roughened by numerous trans- 
™: ; ,r;'y m """ K ; nt ' r dges; " ,e mrk usui, "y ion s" th ° n *• *■£ ^", ***y v***^ 
„ ta , f I TZ 7, ■ a " d "-*»"•« 'es, distinctly enmd; the tip slightly narrower, 
1 n! , T f fTT", &Mj as ^ metri ™'. —at obliqno, the Hp^Us prominent, 
• I i , " 1 ™ I '' ,W r ,,S t ,fnding a P ° inW P rominent «*«■ B "-l cell. If the perithecium 
; < ilk t"T r" m ° a ' ° r ll ' SS elon « ate - fin »% '"- * '-S distinctly tnarkcl by tmna- 
P-ed ells, ,'l.e lowr ,,,,„„; r^ n fh ,i ? Z' "f ^ 5* t"*' *** ■?**■ * !"" "T^. 
term in 
