158 PROCEEDINGS OF THE AMERICAN ACADEMT. 



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

 Blightly inflated basal cells, the other closely s«*pt:iti*, intermediate forms 

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

 purple. Perithecia L40 x 40 p. Total length to tip of perithecium 

 about 450 u ; to tip of free end* of receptacle 450/&. Appendages 140- 

 160 p. 



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

 on 0. glaucut Slug., Brit. Mus. No. 465, (oast 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, Bubtruncate, the lip-edges hyaline, 

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

 olivaceous, lighter below, rnsertion-cell unmodified, external, about as 

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

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

 which is formed a primary dark brown terminal prominence bearing 

 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 -lender, 

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

 basal segments bearing numerous typical flask-shaped antheridia. Spores 

 70 X 4.5 fx. Perithecia, average 100x38/x. Total length to tip of 

 perithecium average 220 yx ; to insertion-cell 150 /a; greatest width SO/*. 

 Appendages, longest 175 fi. 



On Gyretes? sp., Paris Museum, No. 10G, 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, 

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

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

 nearly bo. 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 



