276 MONOGRAPH OF THE LABOULBEXIACE^. 
This curious species occurs ratlicr rarely, more often on the upper tlmn on the inferior sur- 
face uf the abdomen of the two hosts mentioned, the receptacle lying close against the surface, 
•while the perithecia project outward, often backward. Specimens on S, longiusculus are 
soruewliat siiuillcr and much paler than those on the larger host, the basal cell of the receptacle 
being more or less translucent* The form is not easily overloolvcd when mature, occurring usu- 
ally in grou])3 of half-a-dozen or more. The hosts may be found in dry hay or other rubbish in 
cultivated land. 
EiVARTHROMYCES nov. gen. Plates III-IV. 
Receptacle consisting of a simple series of superposed cells, the distal ones bearing sterile 
a])])cndagcs, those below giving rise to iintlieridia or perithecia or remaining sterile. Anthc- 
ridia coujpounJ, terminally pointed and perforate, the six anthcridial cells converging upward 
to a general cavity, into which they empty through narrow necks. Trichogync simple, two- 
celled. Terithccia stalked, one or more formed by direct budding from the cells of the 
receptacle. 
In the form and structure of its antheridium, and to some extent of its perithecium, this re- 
markable genus recalls Peyritscliiella, to which it is undoubtedly more closely related than to 
any other. The scries of specimens which constitute the types of the single species contain no 
very young individuals ; yet it is apparent that, after the axis is formed and most of the sterile 
ai>pcndage8 have been produced, an antheridium arises, first originating as a lateral bud, in 
such a position that the first trichogync when mature lies beside its apex. The antheridium is 
tlic largest thus far observed, of the compound type, and its general structure may be made out 
^•ith no great difficulty. Tlie anthcridial cells are irregularly flask-shaped, and occupy the 
somewhat inflated basal portion of the organ, the distal part being more or less conical, and 
19) 
(.1 
1 the contents 
ce Is are d.sclmrijed. The cavity «-!,iol, it contains is of considerable size, and is oHen filled 
.v,tl, free antherozoids. The latter are larger than other known forms of endogenous origin, and 
seem to he snrrom.ded by a thin wall at the time of their final discharge. The triehogyne is 
q..^epeeul,ar and unar,able in form, being rather short and inflated, septate near the middle, 
I n t"" H T " ;. ''?''"' P™^'"'"" ^^'^*^ "'' «S- "- 1 ry, which seems to he the 
5tr : ! ;jrr'r'J _'^ r^'-^^- "^'-^ ^'^«-tly thick .al.ed. Indeed, it is only 
;hort 
fertil 
■). The young perithecia arise as lateral buds from 
occome onee septate (fig. 14) and follow the course of development described in Pa^ iZ"^. 
En-authho„yces .xoics nov. sp. Plato III, figs. 13-19; Plate IT, fi.s. 8-11 
Miorr, cieaiJj distmguished, broadly truncate apex, the lii> 
