THAXTER. 



MONOGRAPH OF TDK l.\ IH ) U LU K.\ I A( ' EM. 



[15 



latter is unusually prominent below the insertion-region, though not developed in die abnormal fashion 

 seen in L. anornala, which is perhaps its nearest ally. The material examined is not abundant, or in good 

 condition, but, as far as can be determined, the characters arc constant. 



Laboulbknia anomala Thaxter. Plate LXVI, figs. 14 15. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 157. Dec, 1899. 



Perithecia nearly symmetrical, free except at the base, tapering distally, the lip somewhat lighter, 

 subtruncate, with one (or more ?) of the lip-edges modified to form a prominent large somewhat irregular 

 blackish brown median projection, which causes the tip to appear notched on the inner side. Receptacle 

 dirty olive-brown, finely punctate, the whole curved almost to a horseshoe form: cells I and II about equal 

 in length and diameter, the base of the perithecium opposite cell III, insertion-cell unmodified external 

 subtriangular, cell V similar to it, about twice as large and occupying a corresponding position on the 

 inner side; the two together with the terminal portion of cell IV, on either side of which they lie, form the 

 free broadly clavate terminal portion of the receptacle above the narrower and also wholly free basal half 

 or more of cell IV. Basal cells of appendages not distinguishable, giving rise to a number of promineru ses 

 (about twelve) each forming the base of a branch, the branches 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 /i. Total length 

 to tip of perithecium about 450 ft; to tip of free end of receptacle 450 fi. Appendages 140-100 ft. 



On elytra of Orectoggrus sutiiralis Reg., Paris, No. 102, Zambesi River, Africa; of O. glaums King. 

 Brit. Mus. No. 465, Cape Coast Castle, Africa. 



This species, of which only scanty material has been examined, is distinguished by its contorted form 

 and the anomalous development of the distal part of the receptacle, the insertion-region being carried up 

 and out free, even beyond the tip of the perithecium. Though similar in some respects to L. constricta, 

 it seems abundantly distinguished from this species. 



Laboulbenia dactylophora Thaxter. Plate LXVII, figs. 3-4. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 169. Dec, 1899. 



Perithecium relatively small, its upper third, only, free from the receptacle, translucent smoky brown, 

 the tip prominent, not abruptly differentiated, its upper half hyaline, relatively large and broad, subtrun- 

 cate or irregularly sulcate, the lower half blackened, the lips black-tipped, somewhat spreading. Recep- 

 tacle very elongate, concolorous with the perithecium or paler, finely punctate, tapering below, its curved 

 base hyaline, the basal cell expanding distally to the very broad upper septum, which forms the middle 

 of a somewhat one-sided enlargement involving the adjacent extremities of cells I and II, cell II more dis- 

 tinctly punctate, very long, tapering very slightly nearly to its distal extremity, cell V producing two out- 

 growths, one on either side, erect, usually similar, brown, distally somewhat enlarged, the rounded tips 

 often bent slightly outward, extending to or beyond the tip of the perithecium. Appendages consisting 

 of two (or more ?) basal cells from which several protrusions arise bearing groups of branches which are 

 several times branched, forming a dense tuft not as long as the outgrowths from cell V, the lower septa 

 brown or blackish, between the short cells. Perithecia 170-190 X 48-50 fi. Total length to tip of 

 perithecium 750-880 ft; to insertion-cell 680-810 ft; cell II about 425 ft long. Outgrowths from cell 

 V, 58 ft. Appendages 50 fi. 



On Orectogijrus spccularis Aube, Paris Museum, No. 100, Gold Coast, W. Africa: on O. ornatwollis 

 Aubc, Sharp Coll. No. 1084, Madagascar: also Berlin Museum No. 806, "Africa." Margin of elytra. 



Specimens of this species from Madagascar, of which six have been examined, all differ from the 

 type form from Africa (fig. 4, Paris Museum) in that the paired finger-like projections, associated with 

 the appendages are much shorter, while the receptacle lacks the characteristic geniculate habit above 

 cell 1, which occurs in all the other specimens. The species is nevertheless very well distinguished, and 

 cannot be confused with any other at present known. The figure of the type (Fig. 4) does not show the 

 deeper suffusion of the paired outgrowths, or of the perithecium and the distal part of the receptacle. 



