316 



THAXTER. MONOGRAPH OF THE LABOULBENIACE^. 



is easily distinguished by its slender form and translucent receptacle, the basal cell of which is very small 

 and conspicuously suffused. The material was however too immature for description. 



Of the species previously illustrated T. Actobii has been found in the British [Museum on Actubius 

 cinerascens Gr., from Merton, England, No. 438: T. mirificus has also been again observed on a species 

 of Acylo-phorus from Lake Eustis, Florida. 



Teratomyces Philonthi Thaxter. Plate XLIX, figs. 4-5. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 432. April, 1900. 



Perithecia commonly two, long and slender, a basal middle and distal portion distinguished, corre- 

 sponding to the basal, middle and the distal wall- and lip-cells, the basal portion slightly inflated, purplish, 

 the middle distinguished from it by a slight elevation at the septa; the middle nearly hyaline, rather 

 abruptly narrowed, its margin slightly concave owing to a slight distal enlargement, which, in mature 

 specimens, distinguishes it rather abruptly from the much shorter narrower subcorneal mostly symmet- 

 rically truncate colorless distal portion; the stalk-cell rather short, concealed by the appendages; the 

 basal cells forming a squarish base. Receptacle relatively small, symmetrical or asymmetrical, the basal 

 cell translucent brownish, the subbasal cell very small, flatfish, wholly involved by the deep nearly opaque 

 suffusion of the lower half or more of the upper cell, which is nearly hyaline above. Appendages short, 

 slightly exceeding the base of the perithelium, rather rigid, slightly divergent, for the most part dark 

 brown; forming a rather dense tuft, many ending in pointed cells, the slender terminations straight or 

 bent and forming the beak-like cells characteristic of the genus. Spores 3G X 4 /<. Perithecia 140-175 

 X 25-30 fi, the stalk-cell about 35 ji. Receptacle about 85 X 35 /<. Appendages (longest) about 

 70 fi. Total length to tip of perithecium 250-300 fx. 



On PMUmthus sp. indet., British Museum, No. 365, Hungary. 



A species well distinguished by the successive ridges on the perithecium and short dense appendages. 

 It appears to be rare as I have met with it only once among the many hundreds of Philonthi examined. 

 It is possible that the generic determination of the host may not be correct. 



Teratomyces Zealandica Thaxter. Plate XLIX, figs. 1-3. 



Receptacle with a distinct distal obliquity, opaque with the exception of a hyaline area just above 

 the foot, the margins straight, the distal portion relatively narrow, the base relatively broad, the suffusion 

 involving the bases of the appendiculate cells which are relatively numerous and narrow and more or less 

 suffused with brownish yellow. Appendages sometimes scanty, but slightly divergent, concolorous through- 

 out, nearly hyaline or pale yellowish; the basal cells of the larger branches relatively slender, the external 

 branchlets and numerous beak-like cells hardly more deeply colored. Perithecia relatively large, long, 

 rather slender, slightly inflated throughout, the blunt tip more or less abruptly distinguished; the stalk- 

 cell very short or almost obsolete, hidden by the appendages; the basal cells relatively small and not 

 distinguished from the body of the perithecium. Spores about 50 X 2.5-3 fi. Perithecia 150-180 X20- 

 28 n, basal and stalk-cells together about 35 fi. Longest appendage 180 jjl. Receptacle 75-125 X 15- 

 18 (base) 22-30 // (distally). 



On Quedius insolitus Sharp. Dimedin, New Zealand. Sharp Collection, No. 1099. 



This species is well distinguished by its nearly isodiametric receptacle, as well as by its appendages, 

 which are either wholly hyaline, or evenly and only slightly suffused; while the dark ring which sepa- 

 rates the stalk-cell of the perithecium from the receptacle (fig. 1) is at least not visible in other species. 



Teratomyces petiolatus Thaxter. Plate XLIX, fig. 7. 



Proc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 35. June, 1901. 

 Receptacle nearly symmetrical, almost wholly black, slender below, expanding rather abruptlv dis- 

 tally; the appendiculate cells relatively large and long, translucent, brownish yellow, subtended by a 

 slight enlargement. Appendages numerous, spreading, the larger ones consisting of a very large colorless 



