THAXTER. — 



MONOGRAPH OF THE LABOULBENIACEJS. 



399 



tin- brown suffusion of the basal part: the inner appendage consisting of a basal cell giving rise on either 

 side to an inner and an outer nearly horizontal series of cells similar to thai of the outer appendage, but 

 fewer in number, similarly branched except that the two or three lowest cells of each scries bear single 

 large stout straight brown antheridia on undifferentiated coneoloroiis stalk-cells, the basal cells of the series, 

 as in the outer appendage, becoming suffused with blackish brown. Perithel ia 100 220 / 10 50 //. 

 Total length to tip of perithecium 300- 375 /<; to insertion-cell 75- 80 /<; greatest width 55 //.. Appendages, 

 longest 220 /«. Spores (in peritheeia) about 50-55 X 0 /<. 



On elytra of Colpodes Chiriquinm Bates, Brit. Mus. No. 735 (Biologia Coll.), Volcan de Chiriqui, 

 Panama. 



This well marked species is represented by four individuals, only, in the material available. The 

 inner appendage appears to be proliferous above its base, and thus to become double, bearing two sets 

 of antheridia and sterile branches, an inner and an outer; the latter arising from basal cells that arc nearly 

 horizontally placed. The basal region of the inner appendage is therefore very broad and cell V of the 

 receptacle is correspondingly large, larger than cells II, III, or IV. The tendency of the inner appendage 

 to proliferate recalls the conditions seen in L. Trichognathi, though the two species are quite unrelated 

 in the section. The insertion-cell may be without any of the usually opaque sufl'usion, but varies in this 

 respect. 



Laboulbenia curvata Thaxter. Plate LXII, fig. 12. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 33. June, 1902. 



Perithecium large and long, strongly curved inward throughout, rich deep red-brown, the inner half 

 usually opaque, the outer more or less translucent or becoming opaque; the basal wall-cell forming a 

 well-defined, short, hyaline stalk; the tip short and broad, suffused about the terminal nearly median 

 pore. Receptacle short and stout, translucent, more or less deeply and unevenly suffused with dirty brown ; 

 the basal cell paler, or nearly hyaline below, often as long as the rest of the receptacle above it, obscurely 

 punctate; the subbasal cell short, a very small part, only, of its anterior margin free; cells III and IV 

 subequal, or cell IV larger, separated by a very oblique septum, a small portion only of the outer margin 

 of cell IV free externally. Insertion-cell slightly oblique, brown or black, the suffusion involving the 

 basal and even the subbasal cells of the appendages. Appendages consisting of from six to eight obliquely 

 superposed cells, the branchlets usually much shorter than the perithecium, the two lowest cells of the 

 inner appendage bearing antheridia! branchlets consisting of a relatively large subhyaline stalk-cell bearing 

 terminally a pair of deep brown divergent relatively small antheridia, the long slender necks curved 

 rather abruptly distally. Spores 70-75 X 4 ;i. Peritheeia 325-400 X 50-70 /z, including the stalk (40- 

 55 /t). Receptacle 185-220 X 75-90 /i. Total length to tip of perithecium 500-600 p. 



At base of anterior legs of Galcrita carbonaria Mannerh., Brazil; Berlin Museum, No. 900: and of 

 Galerita sp., Hope Coll., No. 259. 



This species is distinguished by its almost falcate habit, the outer and inner halves of the large curved 

 perithecium translucent and opaque, respectively, and distinguished by a more or less clean line of de- 

 marcation; although, in older individuals, the outer half may also become rather deeply suffused. The 

 appendages in general resemble those of L. pcrplexa very closely, but are at once distinguished by the an- 

 theridial branchlets, and the antheridia; the latter being small, with very slender necks, and borne in 

 terminal pairs. The Berlin material is taken as the type of the species, but the material from the Hope 

 Collection, the locality of which was not indicated on the host label, agrees in every respect. 



Laboulbenia pygm.ea Thaxter. Plate LXII, fig. 6. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 198. Dec, 1899. 



Perithecium dark brown becoming almost opaque, coarsely granular-punctate throughout, somewhat 

 more densely below, the basal wall-cells forming a well defined hyaline contrasting short neck slightly 

 narrower than the body of the perithecium, the tip usually not very abruptly distinguished and bent very 



