382 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^E 
On Serrimargo guttiger Schaum., Brit. Musi No. 559, IVnang, East Indies; on Serrimargosp., Borneo, 
in Cambridge University Collection (England), No. 1216, 
This species is very eleariy distinguished by the peculiar conformation of its black maculate recep- 
tacle, and the attenuation, induration, and opaque suffusion of the basal cell of the latter; which is similar 
to the condition Been in the type forms of L. Thyreopteri. The cell arrangement is somewhat similar to 
thai of L. SerriTnarginis, which is its nearest ally, but which appears to be very different in other respects* 
Although the cell arrangement is so abnormal, I am inclined to believe that the species is related to some 
of the forms like L. finitima and L. svbconstricta which occur on similar hosts. 
Laboulbenia Serrimarginis Thaxter. Plate LIX, figs. 23. 
Proc. Am. Acad. Arts and Sei., Vol. XXXV, p. 201. Dec, 1899. 
Perithecium about three fourths free, dull olive-brown, the outer margin nearly straight, the inner 
l.<-nt rather abruptly below the tip; the latter not abruptly distinguished, broad, blunt, the lips not well 
denned, dull blackish. Receptacle dull olive-brown, except the almost hyaline rather slender basal 
••.■II; the resi el the receptacle short and stout, coneolorous with the perithecium, cell VI broad and 
extending down to cell I beside cell II, cell VII extending half way down cell VI externally, the septa 
of ( .lis 1 1 1 and IV oblique; cell III extending up to the base of cell V. Outer appendage simple translu- 
cent brown, paler dLstally, the basal cell twice as long as broad, bulging slightly externally; inner append- 
ago consisting of a much smaller basal cell which bears a branch on either side; the basal cells of each 
l.nmehlrt bearing two simple branchlcts similar to the outer appendage, erect, brownish, approximated. 
"" f L T,,1:l1 length to tip of perithecium about 300 ft; to insertion-cell 190 ft; greatest 
Width 86 ft. Appendages 260 ft. 
On 8errimargo gutter Schaum., Brit. Mus. Xo. 558, Penang, East Indies. At base of anterior legs. 
A form most Dearly allied to L. macutata, the cells of the receptacle being somewhat similarly arranged 
and the appendages similar in general, but hardly to be confused with this species. Two mature specimens 
only have been examined. 
Laboulbenia Pekicalli Thaxter. Plate LV, fig. 12. 
Proc. Am. Acad. Arts and Sci., Vol XXXV, p. 194. Dec, 1899. 
Perithecium becoming almost opaque, its upper fourth, sometimes only the tip, free from the recep- 
tacle, relat.vely small, the tip more or less prominent, sometimes subconical, short, and wholly black 
(olten more prominent abruptly distinguished, the rounded lips well defined with hyaline edges). Re- 
ceptacle normal, cells III and IV large and broad, coneolorous with the perithecium; cells I and II 
together with the lower end of cell VI pale yellowish. Outer appendage mostly simple, stout, the lower 
cells sightly inflated; inner appendage consisting of a much smaller basal cell, bearing a usually simple 
ortoch on either side very similar to the outer appendage; all the branches yellowish or becoming tinged 
C '^ Spmall - V "'T' tlH ' *"*' Pe,itheda 11(M3 ° X 37 ~ 45 /<• T otal length to tip of perithe- 
cium 200-300 ft; greatest breadth about 75 ;l fell 
On» gnUalns Chev., Paris Museum, No. 78, Java; on Miscehu sp., Paris Museum, Nos. 
IM, 11% llo, Xew Guinea. 
50 
The type form of this species (Paris Xo. 78), which is represented in ffc 12 is 
receoitr'T K r ° Cal,ing thUt ° f ^ Ma ^ n ^ ** Perithecium being almo* wnony unneo . u. 
K^i^Stf"^ h0WCVCr ' that ™* ^ L > C "^»> - * ** be necessary 
sufficiently character* 
st wholly united to the 
ABO LB EX 
species as it occurs in Mex 
renminliLi k v u •* , , "^^ l& sumcientiy well distinguished, and easily 
-:'ta, v , ", T i" nb "-' ,r<ra ' n TOlor ' *• M--« kasal cell of ,he oo.er .ppend^e, and the 
.u.ruptl, dBtmgUBbed bp of to perithecium. A comparison, however, of ,nJL Jr^ronu, 
A comparison, however, of material on Catascopus 
