380 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
age similar, often curved slightly outward, becoming tinged with brown. Perithecia 175 X 40 fx; the 
tip >>7 /i broad. Total length to tip of perithecium 325-400 /*; to insertion-cell 185-230 fi\ greatest width 
55-63 fi. Appendages about 175 /i (longest). 
On inferior surf ac< of Catascopu* sp., Paris Museum, No. 119, New Guinea. 
This pecies, although closely allied to L. tenuis and L. aristata, is clearly distinguished from all others 
by the very prmliar conformation of the symmetrical spreading tip of its perithecium, the detail of which 
is shown in fig. 5; the black portions at the apex strongly suggesting the end of a pair of horizontal cut- 
plyera, or blacksmith's tongs. The material, though scanty, is in fairly good condition and shows no 
essential variation, The differentiation of the three basal cells of the outer appendage is similar to that 
of E. Maylayensu though less distinct and constant. 
Laboulbenia Thyreopteri Thaxter. Plates LV and LXIV, fig. 15. 
an.l Sci., Vol. XXXV, p. 205. Dec, 1899. L. Borneensis Thaxter, 1. c, Vol. XXXVIII, 
p. 28. June, 1902. 
lVritheeium nearly free, proportionately large, dull amber-brown, straight, narrower at the base, 
the inner margin slightly convex, the outer concave through the presence of a prominent subterminal 
hump, which is suffused with blackish brown, the suffusion often involving a fainter discoloration of the 
subbasal wall-ceil below it; the tip small, prominent, and abruptly differentiated, blackish with broad 
hyaline lips. Receptacle slender, the basal cell black, opaque, mostly curved below, very slender; the 
subbasal eel! broader, suffused with blackish, mostly verrucose or coarsely punctate, the remaining cells 
normal and concolorous with the perithecium. Insertion-cell thick and narrow. The outer appendage 
imple, its basal cell long, undifferentiated; the basal cell of the inner appendage shorter, bearing a branch 
totally on cither side, all the branches similar, crowded, concolorous with the perithecium, erect, straight 
or bent slightly toward the perithecium, the inmost in contact with it. Spores 55 X 4 /*. Perithecia 140- 
Arte 
175 X 1 1-25 a. Total length to tip of perithecium 340-400 
140 
Appendages 
P 
optenu sp., Paris Museum, No. 125, Africa and Sharp Collection, No. 1201, South Borneo. 
On Thyre- 
form 
and 
"■ —*— "»«■■ »«" WO mai men: is no essential cmterence between the Airman and 
Borneo material, although the pale yellow color of the latter, Plate LV, which is formerly distinguished as 
penthecial 
cells of its receptacle, and some other points, give it a somewhat different appearance. The species is a 
pecul 
on this and related hosts. 
Laboulbenia fixitima Thaxter. Plate LX, figs. 21-23. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 176. Dec, 1899. 
Perithecium one half to two thirds or more free, olivaceous brown, lighter distally, becoming wholly 
dark brown stra.ght or curved outward, rarely inward; the tip broad, rounded, generally not well differen- 
tm ted Waefasb. Recepteck -relatively small, the basal cell hyaline or yellowish, the rest concolorou 
^ththe 1 ,enthecium; ceils 1 1 1-V lighter, cell VI extending down almost or quite to cell I. Appendages 
browmsh or pale olivaceous, the outer simple, its basal cell twice as long as broad, externally somewhat 
' und " ,orc J^*?" 1 "* ,,rown ' the "»-l -ell of the inner appendage half as Urge, bearing 
a brand, on e, her s,de winch ,s usually furcate above its basal cell : all the branches erect, closely appresse.l, 
it n»rrmnji v omyico tU^ +;,. „f ji «.i , . . . ' j ri 
and often bent 
age 125 X 45 /.<. 
width 48-50 «. 
Appendages 30 /*. 
Perithecia, aver- 
145-150 a; greatest 
On Perieallu. » guttata* Chev., Paris Museum \n 7« n*i* tut xt ^ t ™ » • 
Tit Rrit Ar,,c KV vm c- 'Museum, Ao. 78, Brit. Mus. No. 571, Java; on P. ca>ruhovvre)i* 
lat., l,i it. Mux Xo. o/0, Singapore. On the legs 
