Galapagos Fungi—MARTIN 
73 
ceous in mass, but have tended to become duller 
with age. They are uniformly warted and 10- 
11 jit in diameter. The plasmodium was dingy 
on emergence, becoming dull rose just before 
transformation. Numerous mounts have re¬ 
vealed no trace of capillitium. P. corticalis var. 
liceoides G. Lister (1911: 251) was erected for 
forms with scanty or no capillitium and with 
few granular deposits in the wall of the peri- 
dium. Examination of a large series of collec¬ 
tions from numerous localities shows that these 
two characters vary independently and suggests 
that the varietal name is superfluous. This is, 
of course, even more true of the specific names 
which the varietal name was intended to super¬ 
sede. 
*Perichaena depressa Libert 
On thorns of Scutia, 6317. Typical, except 
that the majority of the fructifications are soli¬ 
tary and very small, correlated with the small 
thorns on which they developed. All are strongly 
flattened, with the circumscissile dehiscence 
characteristic of the species, and there are sev¬ 
eral small clusters. This material was wet on 
November 28, 1945. The Perichaena began to 
appear about a month later, and a few sporangia 
were still developing as late as April, 1947. This 
period of over 16 months is, in my experience, 
by far the longest time during which any col¬ 
lection has produced myxomycete fructifications. 
Also on goat dung, 6309; larger and more clus¬ 
tered. 
* Perichaena vermicular is (Schw.) Rost. 
On wood of Bursera, 6327. 
*Stemonitis pallida Wingate 
On thorns of Scutia, 6319. On wood of Bur¬ 
sera, 6328. 
ASCOMYCETES 
*Ascophanus argenteus (Curr.) Boud. 
On goat dung, 6282. 
*Ascophanus carneus (Fries) Boud. 
On goat dung, 6331. 
Gloniopsis sp. (Fig. 2a-e ) 
On the dead wood of Bursera there were nu¬ 
merous elongate black bodies suggesting hyster- 
othecia. These were extremely abundant, occur¬ 
ring on perhaps a majority of the dead branches 
seen. It was not until they were examined mi¬ 
croscopically that it was recognized that three 
species were involved. Two were the Hystero- 
graphium and the Phaeopeltosphaeria listed be¬ 
low; the third was a Gloniopsis. The hystero- 
thecia (Fig. 2 a) are black, fusoid, and striate, 
and most of them appear to be raised well above 
the general surface of the wood. A cross section 
(Fig. 2b, c) shows that the base is composed of 
scarcely altered wood flanked on either side by 
a black stromatic layer representing a continua¬ 
tion of the walls of the hysterothecium. The 
subhymenial layer is distinctly thinner than the 
hymenium. The latter is composed of densely 
compacted, gelatinous, apparently unbranched 
paraphyses penetrated by scattered asci in vari¬ 
ous stages of development, only a few at a time 
bearing mature spores. The asci (Fig. 2d) are 
short-cylindrical and for the most part 4-6- 
spored. The ascospores (Fig. 2e ) are oval, hy¬ 
aline, muriform or somewhat irregular in their 
septation, and extremely variable in size, the 
great majority ranging from 25-31/* in length 
by 11-18/* in width. One ascus was seen con¬ 
taining but two ascospores, one of which meas¬ 
ured 58X20/*. A number of species of Gloniop¬ 
sis with large spores are listed in Saccardo. Of 
these G. somala Baccarini (see Saccardo, 1928: 
1119), from Italian Somaliland, could represent 
this species, and the specimens are provisionally 
filed under Baccarini’s name. On dead limbs and 
branches of Bursera, 6245, 6254. 
Hysterographium mori (Schw.) Rehm 
On dead wood of Bursera, 6252, 6255. De¬ 
termined by G. R. Bisby. Dr. Bisby notes that 
No. 6252 approaches H. guaranicum Speg., as 
