288 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
aide, and by a relatively long straight erect slightly tapering subtending terminal unicellular spine-like 
pr< . Spores about 20 X 2 //. Peritliecia 100 X 22 ft, the terminal process 18 ft. Secondary recep- 
tacle -,, together, 55 X 18 //. 
On the antenna of a small brown wingless roach (probably Temnopteryx sp.) taken under stones and 
bark near the mouth of the Mammoth Cave, Kentucky; Mus. Comp. Zool., No. 1370 Type. On Tem- 
i ptrnjx sp., Fronts Neck, Mass., No. 1380, and Georgia, No. 1382, Scudder Collection. On Ischnoptera 
i>-, Georgia, No. 1386, Scudder Collection. 
Tins species is easily distinguished by the relatively large and long terminal spine, and the elongate 
nearly cylindrical slender tip of the perithecium. The secondary receptacles are usually paired, but 
several may develop, generally behind the first two, and appear to arise from secondary fertile branches 
from the receptacle. The secondary receptacles are sometimes more closely cellular and somewhat 
larger relatively, than is shown in fig. 7; but the species appears to be otherwise quite constant on all 
the hosts mentioned. 
Hekpomyces Diplopter^e Thaxter. Plate XLI, figs. 1-5. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 16. June, 1902. 
Male individual; four-celled, the two middle cells roundish-oblong, the distal longer and subcylin- 
drical, terminated by the usual minute blackish projection; the subterminal and subbasal cells each pro- 
ducing one or two nearly sessile, or short-stalked, anthcridia, with well differentiated slender necks. Total 
length to tips of antheridia about 50 ft. 
Femak individual. Primary receptacle similar to male, the subterminal and subbasal cells sub- 
cylindrical, longer than broad; the fertile branch producing two symmetrically placed secondary recep- 
tacles, the sterile external cells yellowish, somewhat larger and more distinct, about twelve or more in 
ii nmber; the seri. - extending externally and inferiorly to form a free buttress-like margin, which almost 
wholly covers the single fertile cell. Perithecium yellowish, straight, nearly erect, the base bulging very 
slightly; but hardly broader than the ascigerous part, which is relatively large, long, subcylindrical, or 
slightly inflated; the distal part, relatively short, rather abruptly distinguished; the posterior cell-row, 
which is external in relation to the host, more prominent, with larger thick-walled cells, the fifth from 
below prolonged to form a long, bluntly tipped, erect, horn-like, subterminal projection, distally curved 
inward above the short slightly incurved pointed subcorneal tip. Total length of perithecium (exclusive 
of base | to tip of process 150 p; to tip 115 ft: ascigerous part 70-75 X 28-30 ft, distal part to tip 35-40 ft; 
die process, free part, 25-30 ft, whole cell 40-44 pu Secondary receptacles both together 55-65 X 25 ft. 
Total length to tip of process 175-185 ft. 
On antennae of Diploptera dityscoides Serv., Ascension Island, South Atlantic; Mus. Comp. Zool., 
No. 1371. r 
The secondary receptacles are paired in all the individuals of this species which have been examined, 
and are relatively small; the body of the perithecium is nearly isodiametric till it narrows suddenly to the 
relative y short abruptly distinguished distal portion, which is terminated by the relatively long curved 
•sp-ne; the tip short and subcorneal. It is otherwise very similar to II. arktinus. 
Herpomycks Phyllodromle Thaxter. Plate XXXIX figs 1-2 
u , ..... , Proc - Am - Acad - Arts and Sci., Vol. XLI, p. 310. July, 1906, 
dhJT^ot^ Sliperi ^ <1 ^ *«**• ***% one or several antheridia 
I * » Jfc — ^ ■ 
Female individual. 
subba d 
Colorless, the primary receptacle minute, consisting of four subequal cells: 
CO 
them more or 1, svmmetrieallv d ace 1 T - ^^ * ^^ P crithecium - "f 
aomeu-hat slender distal po Ton £h .TT ^^ - ** '*****> ^^ aboVe *° ** 
portion, winch bends abruptly outward from the substratum, diverging but 
