8 4 
Massee and Salmon. — Researches on 
are frequently so closely approximated as to appear almost continuous 
under a lens. The conidiophores are very delicate, and soon become 
flaccid and then collapse on being removed from the humid air in 
which the Fungus thrives. Intermixed with this luxuriant form — or 
more commonly preceding it on the same substratum — are found 
conidiophores which bear only a few whorls of conidia, or even only 
a single terminal whorl. This form, which is represented at Figs. 53, 
54 of our Plate, was called A. oligospora by Fresenius, but Coemans 
(Bull. Soc. Roy. Bot. Belg. ii. 177 (1863)) is undoubtedly right in 
considering it merely ‘ une forme appauvrie "of A. superba . Fresenius, 
it may be noted, describes his A. oligospora as having usually only one 
terminal whorl, but states that occasionally several whorls (up to six) 
occur. Coemans, in the paper mentioned above, gives instances 
of the great variability of A. superba . Fine illustrations of the various 
forms of A. oligospora are given by Woronin (De Bary and Woronin, 
Beitr. z. Morph, u. Physiol, der Pilze, Bd. i, Reihe iii, Tab. vi, 
ff. 8-10, 16 (1870)). It may be noted that the present Fungus in 
its most reduced form, when it bears only a single terminal whorl of 
conidia, presents the characters of the genus Cephaloihecium . 
Trichothecium inaequale, sp. nov. (Fig. 61). 
Late effusum humillimum subvelutinum album ; hyphis fertilibus 
erectis parce vel haud septatis circ. 150^1 altis 4-5 ^ crassis apice 
saepe noduloso-denticulatis ; conidiis obovatis vel subpyriformibus 
apice rotundatis basi acutis vel plus minus minute apiculatis, septo 
excentrico, cellula superiore inferiore 4-5-plo longiore, ad septum haud 
constrictis, 24-30 x 15-20 ju. 
Hab. — In fimo equino, Reigate, Nov. 1900; in fimo cuniculorum, 
Kew, Dec. 1900. 
The present species forms a delicate effused bloom on dung, and 
is at once known by the very unequal size of the two cells of the 
conidium. It appears to be related to T. piriferufn (Berk.), Sacc., 
from which it differs in its larger conidia. The conidiophores in 
T. inaequale are frequently somewhat nodulose towards the apex, and 
slightly denticulately branched ; in this character the present species 
seems to resemble T. griseum , Speg. 
