254 THAXTER. — MONOGRAPH OF THE LABOULBENIACEiB. 
nary extra Asiatic type has not enabled me to detect any difference that seems essential. Figs. 16-17 
represent the forms which have been taken as the types of this species. 
DlCHOMYCBS Madagascarensis Thaxter. Plate XXXII, figs. 11-13. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 424. April, 1900. 
Basal cell divply suffused with brown. Lower tier very long and slender, opaque except for a faint 
median translucent line: middle tier with three to five of the median cells distinguishable, red-brow r n; 
the rest indistinguishable in the opaque margins which extend upw r ard to form long fork-like outgrowths 
on either side that may reach nearly to the tips of the perithecia; antheridia not large, brownish: upper 
tier consisting of about twenty-one to twenty-three cells, tinged with reddish brown, relatively large, 
deeply concave (listally; the median cells like those of the middle tier, marked by fine faint transverse 
rtrifle, bearing normally two perithecia which are long and slender, often slightly curved and divergent, 
pale reddish brown, the tip narrow, the posterior lip-cells forming two small, slightly divergent projec- 
tions or auricles curved at the tips, the anterior lips meeting in a point between them. Appendages hya- 
line, sometimes equalling the perithecia in length. Spores very slender and abundant, 35 X 2 /*. Peri- 
thecia 125-135 X 25 //. * Total length to tip of pcrithecium 320-350 ft. Receptacle 225-240 X 105 fi. 
On abdomen of Philonthus Sikorce Fauv., Paris Museum, No. 179, Tananarive*, Madagascar. 
This is a large and well marked species, most nearly related to D. hybridas. It does not appear, 
however, to be dimorphic. The perithecia are never more than two, although the distal tier is unusually 
well developed, and are further more elongate with more slender auricles. 
Dichomyces kiformis Thaxter. Plate XXXIII, figs. 1-5. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 422. April, 1900. 
Basal cell hyaline or nearly so, usually somewhat enlarged and often with a heel-like anterior pro- 
jection; lower tier rather narrow, quite opaque, the marginal cells extending up to the subterminal margi- 
nal cell of the middle tier or to the cell next below it: the middle tier short and stout, the nine to eleven 
cells hyaline or faintly reddish brown above, usually becoming more or less suffused below and externally 
with brown; the median cells, where suffused, marked by darker transverse flecks on their anterior faces, 
the marginal cells ending in a blunt distal often hyaline prominence on either side; antheridia short and 
stout subcorneal, subtended by a single brown inconspicuous appendage: the distal tier assuming in 
well developed individuals the form of a rather slender crescent, the number of cells very variable, the 
maximum about fifty, sometimes less than half this number, in which case the form is stouter, the margi- 
nal cells rarely extending above the tips of the perithecia, which are four to eight in number and of two 
kinds winch are not known to be associated on the same individual; in the one case they are stouter, 
purplish brown, the basal third, or more, often abruptly hyaline or nearly so, the much darker red brown 
tap tampering rather abruptly to the apex, which is hyaline, nearly truncate, with a well defined median 
blunt projection; the posterior lip-cells prolonged, much as in D. insignis, to form a long horizontal nearly 
^ < ^.t^l!z 5?"?* Wuntly tipped hyaline appendage on either side; the second type more 
te or blunt, 
105-110 X 
often longer and more slender than the first, pale reddish brown, the tip tapering, slightly trunca 
often with a blunt median projection as in the first type, but without appendages. Perithecia 
20-35 ft. Receptacle 200 X 100-300 X 270 [i. 
Hrlrlck T\T,.„ TVT r*r.~ -^ . ' ' v,lal ,co l 'UI1J1IU : Oil / fill OWtlltX WllUII Ul I I f* VJ !«•• ) 
M^L T"\i"'- 36 \ U ''«' st "' &*•»<•; Paris Museum No. 200 and British Museum, No. 407, 
Ths ,n!', T- 1"' I75 ' St ' Pierrc ct Mi 1"" l " n: «<•""»"<!. Sh«P Collecti™, No. 1213. 
case the tZf i ',' by me re P«»todly »t F^h Pond on Pl,ih„lkus umbratilu and in every 
,,n»t n r •?'", a L S . S ° Cia,ed - B " P^P 8 thc m ° st remarkable and striking species of the 
opment onhe , 'I 1 ? '''77 ^ ™ d the hi S% developed aurieles, but from the extraordinary devel- 
four or sk Z. 1, f"' r , m °" e s I*" imen observed, bore eight fully developed perithecia although 
« are most frequently present. I have seen no instances in which the two type, of perithecia 
