THAXTEIt. MONOGRAPH OF TH 10 LA HOULIiKNIACK/K. 



361 



Laboulbenia producta Thaxter. Plate LXIV, figs. i:» I I. 

 I'roc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 52. Juno, 1002. 



Peritheeium faintly tinged with pale dirty brown, rather long and slender, nearly erect, free except 

 the rather narrow subhyaline base; the lips somewhat prominent, outwardly oblique, (he inner subtended 

 by a dark suffusion. Receptacle tapering to a slender pointed base, the basal cell hyaline, becoming 

 faintly tinged with dirty brownish, contrasting with the opaque snbbasal cell which is less than tw ice as 

 long; cells III and VI subequal, nearly opaque, reddish brown ; cell IV nearly opaque, continued upward 

 to form a free blunt well-defined prominence which projects beside and slightly beyond the basal cell 

 of the appendage; cell V relatively very large, extending to (he base of cell IV, wholly pale dirty brown 

 like the peritheeium, contrasting. Insertion-cell relatively large, slightly oblique inward, resting below 

 on cell V and laterally and obliquely on cell IV. Basal cells of the appendages nearly equal, subisodia- 

 metric, the outer bearing an outer and an inner simple hyaline branch distally, the basal cells of which, 

 especially the inner one, are more or less inflated, roundish, with dark septa, and tinged with dirty brown ; 

 the basal cell of the inner appendage bearing a branch on either side similar to those of the outer, the 

 branches hardly extending to the tip of the peritheeium. Spores 55 X 4 [i. Peritheeium 90-100 X 25 ft. 

 Receptacle 110 fi to insertion-cell, the projection above 10-12 /<. Total length to tip of peritheeium 220 /<. 



Growing appressed on the bristle-like hairs on the elytra of Anchonoderus concinnns Reiche, Colum- 

 bia; Berlin Museum, No. 1023. 



This species is widely different from any other known species and is at once distinguished by the fin- 

 ger like protrusion of cell IV. The only other species that shows a similar tendency is L. Anaplorjenii to 

 which, however, it is not at all related. The type of the appendages, the short inflated basal cells of the 

 branches, and their dark septa and mode of origin, suggest a remote connection with forms like L. celes- 

 tialis, but it seems on the whole distinctly isolated. Fig. 13 represents a well developed individual 

 obtained on an undetermined host, without locality, in the collection of the Museo Nacional at Buenos 

 Aires. 



Laboulbenia celestialis Thaxter. Plate LXV, figs. 13-14. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 163. Dec, 1899. 



Perithecia almost wholly free, rather deeply suffused with dark reddish brown except the almost 

 hyaline basal wall-cells; tapering slightly to the well distinguished rather large tip, which is turned slightly 

 outward, the lip-cells blackened except around the pore. Receptacle finely punctate, pale dirty brown, 

 darker along the posterior margin, the lower half of cell I hyaline, rather short and stout, somewhat abruptly 

 expanded below the peritheeium; cell IV bulging abruptly below the black insertion-cell. Outer append- 

 age consisting of a somewhat rounded basal cell, brown externally, and bearing usually two branches 

 placed antero-posteriorly, the basal cell of the outer nearly round, deep brown externally and bearing 

 two branches placed antero-posteriorly which are very long and slender, remotely septate and more or 

 less suffused with dirty brown: the inner appendage consisting of a smaller basal cell producing a branch 

 on either side, the basal cells of which are short with black septa and bear solitary antheridia or short 

 sterile branches which are blunt and shorter than the peritheeium. Perithecia 110 X 35 fi. Total 

 length to tip of peritheeium 280 \i; to insertion-cell 15G fi. Greatest width 55-60 ;i. Appendages (longest) 

 400 fi. 



On the elytra of Drypta lineola Dej., Brit. Mus. No. 507, China. On Dichranoncus celestinus, 

 Sharp Collection, No. 1204; and British Museum No. 630, Japan; on Drypta ruficoUis Dej., British 

 Museum No. 506, Natal, Africa. 



The specimens on Dichranoncus referred to this species, differ somewhat in their more slender form, 

 darker color, and deeply suffused perithecia; the receptacle is usually enlarged between cells I and II, 

 and the inner branches from the basal cell of the outer appendage are often paired. In the Natal specimen 

 this inner branch is not distinguished by the usual black septum. It is possible that we are here dealing 



