598 MtrCEDINES, MUCEDINES. 599
!
Brownish circular spots on the leaves indicate the presence of this mould,
wluoh IS so minute that it might otherwise be overlooked. Spores with a
slight swelling towards the base ('0 0 1 in.) '025 m.m. long, often set on
obliquely ; sometimes they give off below a second spore, and very occasionally
there is a septum in the threads.
Gen. 2 3 1 . a c r o s p e i r a , B. & Br.
Hyphasma decumbent ; fertile flocci
erect, branched above, apex of the
ramuli somewhat qnadri-articulate,
spirally convolute ; spores subglobose,
granulated, springing from one or other
of the articulations,—B. ^ B r . Ann. N ,
H. no. 952. (Fig. 266.)
1 7 9 2 . A c ro sp e ir a m ir a b ilis . S . S; B r .
“ Curious Acrospeira.”
Fertile flocci branched; branches
convolute at their apices, four terminal
joints swollen; spores subglobose,
springing from the second joint.—
B e rh .In tr.p .8 9 5 ,f. 69a. Ann. N.H .
no. 952.
Bristol.
A most curious fungus, in which th e dark granulated spores are formed
by a transformation of the second joint from the top of the branchlets. A1Ï
the four terminal joints swell, but the second only in general proves fertile,
though in a few instance» the terminal joint also is transformed.—AT J.B.
(Fig. 26&)
Gen. 2 3 2 . V E R T I C t t l lu m , L in t.
Flocci septate, hyaline or coloured ;
branches verticillate ; spores apical.—
Berh. Outl. p . 849. {Fig. 267.)
1 7 9 3 . V e r tic illium a p ic a le . B . ^ B r .
“ Short-branched Verticillium.”
Effused, olivaceous-black ; flocci
straight, ramuli apical, very short,
incrassated at the base ; spores globose.—
Ann. N .H. no. 531, t. 7 ,/. 17.
On decorticated oak branches. Feb,
Wraxall, Somerset.
On sweet chestnuts.
Effused, forming small dark thin patches ; flood erect, rather closely articulate,
bearing at the apex a coronet of very short branches, which are swollen
a t the base, and strongly attenuated upwards ; spores globose. There is
sometimes the rudiment of a lower whorl of branchlets.—B. & Br.
1 7 9 4 . V e r tic illium nan um. B .& B r . “ Dwarf Verticillium.”
Minute, white; flocci vagrantly branched, ramuli opposite ;
spores elliptic.—B. ^ Br. Ann. N.H. no. 532, t. 7 ,/. 18.
On pears. Cranford Bridge.
Very minute. An obscure species, in which the whorl of ramuli is reduced
to two, by which it is distinguished, as well as by the elliptic spores.
1795. V e r tic illium epimy c e s. B .& B r . “ Parasitic
Verticillium.”
Effused, white, with a flesh coloured tinge ; flocci trifld ;
ramuli suhternate, elongated ; spores oblong.—Br. ^ Br. Ann.
N.H. no. 533, t. 7 ,/. 15.
On decayed Elaphomyces. Oct. Eudloe, Wilts.
White, with a flesh coloured tinge, forming thin effused patches, which
appear compact, and not the least byssoid. Threads once or twice trifid,
rarely bifid, ultimate ramuli ternate or binate, slightly swollen below, a ttenuated
upwards ; spores terminal, at flrst globose, then elongated, when
perfect 4-5 times as long as broad.—B. & Br.
1 7 9 6 . V e r tic illium d is ta n s . B .& B r . “ Distant Verticillium.”
Scattered, snow-white; flocci slender; branches alternate,
ramuli rather long, regularly attenuated ; spores oblong, endochrome
bipartite.—B. ^ Br. Ann. N .H. no. 534.1.1,f. 16.
On herbaceous stems. Cranford Bridge.
Threads short, slender, branched alternately, ramuli 4-6 in a whorl, rather
long, regularly attenuated, whorls distant.
Gen. 2 3 3 . H A P LA R IA , Link.
Flocci simple or forked, jointed; spores
scattered over the tips of the threads.—Berk.
Outl.p. 349. {Fig. 268.)
R a p la x ia g z ise a . Bh. “ Grey Haplaria.”
Eig. 268.
1797.
Fertile flocci scattered, sub-simple, equal, grey; sporidia of
the same colour, collected here and there in heaps upon the
filaments.— Nees.f. 49. Botrytis grisea, Berh. Eng. FI. Y .p . 342.