MONOGRAPJI OF THT. LABOULBEXIACEJE. 335 
^ 
species much shortened about the base, and in some cases show a l*'mlency io form a stuul sfnlk, 
the sub-basal series occuin'ing almost the whole length of the j^critlieciunu Tlie types examined 
were derived from specimens in the Museum of Comparative Zoolotrv. 
Laboulbenia melanotheca Thaxter. Plate XIX, fig, 4. 
Troc. Am. Acad. Arts aTid Sd, Vol. XXX, p. 472, 
Tinged with pale reddish brown, except the nearly black peritliecium. Pcrifhccium lonjr, 
straiglit, symmetrical, sub-cylindrical or Itut slightly inflated, narrowed abru]»tly to (he sym- 
metrical apex, its basal wall-cells elongated to form a nuck-likc stnlk about one-fourth as long 
as its main body, projecting from tlic receptacle at an angle to its long axis towards and 
beyond the appendages. Ai)pcndagcs as in Z, mexicann^ hardly exceeding the pcrithccium in 
length, consisting of two basal cells: the outer producinir an outer and an inner branch 
cither simple or once branched ; the inner producing sino'lc branches on citlicr side, llccep- 
tacle elongate, expanding very gradually from the base, distally abruptly rounded and con- 
tracted below the insertion cell on one side and the neck-like base of the pcrithccium on tho 
otlier. Spores, 95 X 5.5 /i. Perithecium, 220-245 X C0-G5 /x, its aicck-like base about 75 x uO/x, 
Receptacle about 515 X 100/i.. Total length to tip of perithecium, 800-835 /i. 
On Galerita mexicana Cliaud., Nicarngua. 
This species has been previously referred to by the writer as a jiossiblc hybrid between L. 
mexicana and L. Galeritce. It seems on more careful comparison, however, to be abnnrlantly 
distinct from either. The neck-like base of the perithecium formed from the elongated bnsnl 
wall-cells of the perithecium lie wholly below the ascogcnic cells. The eight types were found 
on the elytra of their host in company with Z. mexicana. 
Laboulbenia longtcollts Thaxter. Plate XIX, figs. 5«-8. 
Troc. Am. Acad. Arts and ScL Vol XXVIII, p. 172. . 
Perithecium becoming suffused with dark brown^straight, thick-walled, often slightly inflated, 
the apex short, rather large, abruptly distinguished, black, its lips hyaline, turned slighlly 
mward. Appendages consisting of two basal cells, the inner smaller, bearing distally two 
rounded cells, the upper surface of each blackened and bearin^ two to five branches, which 
arise side by side and spreading laterally may be successively and similarly twice branched, 
the whole having a fan-like habit, the ultimate branches usually one to three in number, either 
bearing two to three long-necked, straight antheridia, or sterile, somewhat elongate, straight and 
tapering. The outer basal cell superiorly and externally blackened, the blackened ridge extend- 
ing obliquely outward and downward nearly to the base, bearing a row of closely set branches 
of variable number (three to five) which are successively three to five times dichofomously 
branched, the ultimate branches suffused with brown, straight, slender, tapering, arisinir from a 
short characteristically bent basal cell ; the basal cells of all the main branches hyaline, slightly 
inflated inwardly, the septa black, contrasting. Receptacle large, cell V as large or nearly as 
T..^^^ oc. nr^\ TV flin nn^V nf fljp norithprium nhniih 175 u in IcUL^h. SDOrCS. 75 X 6.5 U. Pcri- 
o 
