348 



THAXTER. MONOGRAPH OF THE LABOULBENIACE^. 



Laboulbenia Anaplogenii Thaxter. Plate LV, figs. 4—5. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 15G. Dec, 1899. 



Perithecium nearly hyaline or pale yellowish, becoming tinged with pale amber-brown, stout, free 

 except at its base, the outer margin mostly straight, the inner convex; the tip rather small and abruptly 

 distinguished, blackish except the hyaline lip-margins. Receptacle concolorous with the perithecium, 

 rather short and stout, cell V relatively large, cell IV divided by transverse septa into from two to several 

 superposed cells, usually extending upward beyond the insertion-cell, thus forming a blunt outgrowth 

 external to it. Insertion-cell red-brown to claret-colored. Basal cells of the appendages nearly equal, 

 each producing as a rule two similar branches antero-posteriorly, once or twice branched in the same 

 plane, the branchlets rather elongate and slender, concolorous with the receptacle. Perithecium 140-155 

 X 50-55 ii. Spores 50 X 4.5 /i. Total length to tip of perithecium 300-400 /<, to insertion-cell 200- 

 240 fi, greatest width 50-70 fi. Appendages, longest 000 /<, average 300 p. 



On the elytra of Anaphgenius circumduct us Moh., Brit. Mus. Nos. 022 and 005, China: on Abacetus 

 costatus Ceylon; Berlin Museum No. 903: A. rubripes, ? France, Berlin Museum No. 905; Abacetus sp. 

 Bengal, Berlin Museum No. 904; on Agonoderus pallipes Fabr., New England. Stenolophus fuliginosus 

 Dej., Cambridge, Mass. Also immature material of apparently the same species on an undetermined 

 Carabid, Paris Museum, No. 4, from Madagascar. 



Allide to L. polyphaga, but distinguished by its pale yellow color and the tendency of cell IV to be- 

 come septate and proliferous. Many specimens occur, however, in which the receptacle is normal. The 

 antheridia are often greatly multiplied; but the numerous antheridial branches may be replaced, espe- 

 cially in the Asiatic material, by numerous elongate sterile branches. No. 005, on Anaphgenius from 

 China, has been taken as the type (fig. 4). A remarkably well developed form from the Cambridge 

 region is represented in fig. 5. The species resembles L. Anchonoderi and L. Platyprosopi in having 

 a red insertion-cell. 



Laboulbenia verrucosa Thaxter. Plate LVI, fig. 10. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 209. Dec, 1899. 



Perithecium becoming deeply suffused with smoky brown, straight, the line of demarcation between 

 the subterminal and subbasal wall-cells indicated by a more or less well defined ridge forming a rather 

 prominent external hunch in this region, above which the perithecium is abruptly contracted, almost at 

 right angles in the type, below the rather narrow nearly erect tip, the lip-cells black below, with the broadly 

 hyaline edges turned obliquely outward. Receptacle dirty yellow-brown, becoming more or less suffused 

 with smoky brown, especially the two basal cells, and covered with irregular wart-like prominences which 

 are more or less definitely arranged in transverse rows. Appendages of ordinary type, the outer once to 

 twice branched, the inner consisting of a smaller basal cell giving rise on either side to single branches 

 which may be from once to three times branched; all the branches divergent, pale dirty yellowish with 

 brown shades above the lower septa. Perithecia 150-170 X 45-50 /z. Total length to tip of perithecium 

 550-010 ft; to insertion-cell 430-480 ;i. Appendages (longest) 400 /(. 



On the elytra of a carabid allied to Platynus, Hope Coll. No. 342 (without label) andU. S. Nat. Mu- 

 seum, No. 7, Mt. Coffee, Liberia, Africa. 



The specimens from Mt. Coffee are paler than those from the Hope Collection, the perithecium 

 being concolorous with the dirty amber receptacle, the subterminal ridge and external hunch alone being 

 darker colored. The species is nearly allied to some large forms of L. flagcllata. Its corrugated surface 

 recalls L. notata, but the two are not nearly allied. 



Laboulbenia spiralis Thaxter. Plate LVIII, fig. 1. 

 Proc Am. Acad. Arts and Sci., Vol. XXXV, p. 202. Dec, 1899. 



Perithecium one half to one third (sometimes only the tip), free from the receptacle, dark dull amber- 

 brown with dirty brown suffusions, rather stout, the tip moderately well distinguished, rather short and 



