158 PROCEEDINGS OF THE AMERICAN ACADEMY. 



simple or rarely branched, hyaline, of two kinds, the one with long 

 slightly inflated basal cells, the other closely septate, intermediate forms 

 occurring in which the septa are more remote ; all the septa brownish 

 purple. Perithecia 140 X 40 /x. Total length to tip of perithecium 

 about 450 |u; to tip of free end of receptacle 450 /a. Appendages 140- 

 160 fi. 



On Orectogyrus suturalis Reg., Paris, No. 102, Zambesi River, Africa; 

 on 0. glaucus Klug., Brit. Mus. No. 465, Coast Castle, Egypt. On 

 elytra. 



Laboulbenia aquatica nov. sp. 



Perithecium free nearly to its base, rather short and stout becoming 

 dark olive-brown, the wall-cells very slightly twisted, the blackened tip 

 well differentiated ; nearly symmetrical, subtruncate, the lip-edges hyaline, 

 the lip " valves " prominent. Receptacle rather short and distally broad, 

 olivaceous, lighter below. Insertion-cell unmodified, external, about as 

 large as and nearly symmetrical with cell V, the two lying side by side 

 above cell IV. The appendages consisting of an outer basal cell from 

 which is formed a primary dark brown terminal prominence bearino- 

 several small branches distally, while about its base externally and often 

 on only one side several secondary unmodified prominences arise, each 

 producing usually a single terminal branch. The inner basal cell mod- 

 erately distinct, at first simple, later apparently divided or lobed and bear- 

 ing several branches. All the branches hyaline, constricted at the lower 

 (four to about six) dark, mostly oblique septa ; the distal portion slender, 

 elongate, subrigid", tapering, without constrictions or colored septa, the 

 basal segments bearing numerous typical flask-shaped antheridia. Spores 

 70 X 4.5 /x. Perithecia, average 100 X 38 /x. Total length to tip of 

 perithecium average 220 /x ; to insertion-cell 150 /x; greatest width 30 /x. 

 Appendages, longest 175 /x. 



On Gyretes? sp., Paris Museum, No. 106, Venezuela. On elytra. 



Laboulbenia aristata nov. sp. 



Perithecium less than one half free from the receptacle, pale amber- 

 yellow, straight and symmetrical or nearly so, the tip well distinguished, 

 symmetrical, blackish, the lip-cells symmetrically rounded and protruding 

 slightly on either side, their distal margins straight and horizontal or 

 nearly so. Receptacle concolorous with the perithecium, cell I tinged 

 with brown, a brownish shade below the base of the perithecium, cell IV 

 bulging distally where it is rather faintly suffused with blackish. Outer 



