390 THAXTER. — MONOGRAPH OF THE LABOULBENIACEiE. 
i 
425-1480 
175-1 
On Trichognaihus marghiipninu Latr., Hope Collection, No. 267, Columbia, Brit. Mus. No. 525 
"Tama*," S. America; on " T. manj'niata Latr." Brit. Mus. No. 526, Brazil: Hope Collection, No. 266 
4 \S. America"; on Trickognafhus sp. indet.: Paris Museum, Nos. 70, 71, and 135, Venezuela and "S. 
America." Berlin Mus. No. 955 on T.immarginatus, Columbia; No. 957 on T. ductus Chaud. Caracas 
Venezuela. On all parts of host. 
This species appears to be a decidedly variable one, not only in size and coloration, but in the devel- 
opment of its appendages. It is the only species of the section in which the cells of the inner primary 
appendages may show a secondary proliferation which results in more than the normal single series of 
appendiculate cells. This proliferation gives rise to variably developed secondary series of appendicu- 
late cells, each of which bears its branch; so that where this phenomenon is pronounced, the inner 
appendages, as a whole, give rise to a dense tuft of very numerous branches; especially noticeable in 
the material on the Paris specimen, No 135, from Venezuela. Although the ordinary form, in which the 
inner appendages consist, as usual, each of a single series of obliquely superposed appendiculate cells, 
i his simpler form may be associated on the same host with others in which a greater or less degree of 
amplication has resulted through the proliferation above referred to. In the simpler type, the branches 
lend to be more or less constant, with two basal cells usually little, or not at all, inflated, and distinguished 
by blackened sepia; but in the proliferous conditions, especially, this distinction is more or less lost; 
the number of blackened septa varying very considerably, as is indicated in fig. 2. The antheridia are 
normally paired, dark, and borne on a rather long single stalk-cell. Small specimens of this species are 
not unlike certain individuals of L. HeUvomorpha!, or even of L. triordinafa; the essential differences 
of which are pointed out under these species. It is apparently not uncommon on its host, which is a 
carabid allied to Galerita and Brachinmt. 
Laboulbfaia adunca Thaxter. Plate LXII, figs. 7-9. 
Arts 
Dec, ISO!). 
IVrithecium long and slender, straight or nearly so, the outer half clear dark translucent brown, the 
inner pale olivaceous, wholly free, a short well distinguished hyaline neck formed by the basal wall-cells; 
the tip well distinguished, wholly blackish below or especially on the inner side, the inner lips black- 
margin, d, curved outward completely over the outer lips in a characteristic hook-like fashion. Receptacle 
uniform dirty olivaceous, cell I paler, the cells above it faintly punctate. Insertion-cell black, broad, 
in l.stingmshable from the blackened basal portions of the basal cells of the appendages. Outer appendage 
consist! ng of a very large externally rounded basal cell, becoming wholly blackened, except its upper margin 
and surmounted by a series of usually six superposed hyaline cells which is curved toward the perithecium 
each cell Drodlicmo- evtern;illv •, o,wl, ..;,„, J.. 1 l • ,•,.,,. 
. „ i . v ' i *- u Ilva " ne whs which is curved toward the perithecium, 
each eel producing externally a single simple branch consisting of a basal portion made up of two roundish 
short cells couMncted at the dark septa,and a distal portion six or more times as long, tapering, hyaline 
or tinged with brownish; the inner appendages consisting of basal cells wholly or almost wholly black, 
giving rise on ; ether side to a short series of cells, usually three or four, similar to that of the outer append- 
aire and snmarv hrjinclwwl P,„.;ti,™:„ o.i- r>*- . , .~ . r F 
age and similarly branched. 
5-245 X 40 
160 /x. 
O 
200 
Appendages 
n 
Galrrita micobr Dej Brit. Mus. No. 51G, Amazon River. Inferior surface of prothorax 
» species is distinguished from L. amin.lnin + ~ -wj. .-x .__ .__... . . «. , 
|>eculiar conformation of the tip of its perit 
suffused in the last mentioned species. Tl 
the Tner dV J™* *?***; "* "^^ r0unded basal ^ of the outer appendage and 
llistingurh it PUn ° n ° f aU thC C " llS ° f the Str ^ ht «*** ^ove cell I, serve further to 
