334 MONOGKAPH OF THE LABOULBEXIACE^ 
Laboulbenia decipiens Thaxter. Plate XX, figs. 19-21. 
Proc. Am. Acad. Arts aud Sci. Vol. XXX, p. 473. 
Perithccium nearly opaque, not punctate, large, slightly and evenly inflated, tapering rather 
abruptly to the nearly symmetrical apex ; the basal wall-cells forming a short, stout, clearly- 
defined, hyaline neck ; the septa separating the tipper wall-cells, deeper blackish and spirally 
twisted. Appendages consisting, as in L. Craleritce, of a conical cellular base consisting of one 
outer and two inner rows of superposed cells, each of which bears a single simple, strai<>ht 
septate branch, its lower segments slightly inflated, hardly exceeding the tip of the perithccium. 
Antheridia blackish, with a very long curved neck, borne singly or two together from the sub- 
basal cell of the inner series of superposed cells. Receptacle as in L. Galeritce, except that 
cell III extends upward nearly to the black insertion cell of the appendages, cells IV and V 
being wliolly included by it. Color sub-hyaline, with brownish suffusions especially in the 
region of cells lY and V. Perithccium, 175-278 x 55 /i (smallest, 130 X 37 /i), its stalk-like 
base, 40-55 x 30 fi. Receptacle (larger), 300 x 75 /*. 
On Galcrita ccquinoctialis Chaud., Guatemala, and G. nigra, Chev., Mexico. 
This species is remarkable for its close resemblance to X. Gahrit^. It is at once dis- 
tinguished by the position of cell III and by the peculiar twist of its pcrithccial wall-cells, 
which are not punctate, as in the latter species, and differs further in the form and size of its 
authcnd.a as well as in the branches of its appendages, which are more numeronn as a rule and, 
as far as can be determined, from the rather poor material available, much shorter. The 
tlnrty-six types were obtained from specimens in the Museum of Comparative Zoolo-y. 
Laboulbenia mexicana Thaxter. Plate XIX, figs. 1-3. 
Proc. Am. Acad. Arts and Sci. Vol. XXVTTT, p. i7i. 
^T^:,ZT^l f "'^"f ' "" ""'' "^-"-'iPP^^ »Pex abruptly di.ti„,n,!s,,od, 
^ ZXt^^T^^ r^^^^ "^^ P->'->"-. --''ting of t.™ W 
and an inner \JJ! ! ''' ""^ °"*'='' """""^ »™P'». •"<'■■<' <lceply suffused, 
eit er si one 'or r" °'' "T"''"^- ^™" *'"= '""- "-»' -" -- two b ancl.os o.: 
^n^:^ ^^C^fZ:2:T^:^'' y'!^ -"^ 0' the poHt„eci„. ,..,e and di - 
, eo,. Appendages, longest, 220^. Total length to tip of .erithecium. 500- 
600 ft. 
On Galerita mexicana Chaud., G niarn Ch.^ n 
Nicaragua. ' ^^ ^^^^•' ^' n^^nociialu Chaud., Mexico and 
One of the 
conspicuous from its light color. 
of 
O 
of 
Ku 
and .fi ^^''^"; i^«"^necium and the long-necked forms like those of L. 
oaicrs. The lower series of perithecial wall-cells are in the present 
