293 OUT L INE S OE B R IT IS H EUNGOLOGY.
On pine-wood. Not common. East Bergholt, Dr. Badham.
I have never been able to find asci in this plant, which I believe
belongs to the Order Tremellini.
Eam. i l —g a s t e r o m y c e t e s .
Hymenium more or less permanently concealed, consisting
in most cases of closely-packed cells, of which the fertile ones
bear naked spores on distinct spicules, exposed only by the
rupture or decay of the investing coat or peridium.
Order 7. HTPOOÆI.
Hymenium permanent, not becoming dusty or deliquescent
except when decayed. Subterranean.
53. OCTAVIANIA, Fitt.
Peridium continuous or cracked, cottony, running down
into the sterile base. Trama byssoid, easily divisible. Fruit-
bearing cavities or cells at first empty. Spores rough.
1. O. asterosperma, Vitt. ; globose, dirty-white, then in
parts æruginous-hlue and black ; sterile base rather thick ;
spores spherical, deep ferruginous, echinate.—Tul. t. 11. /. 1.
Underground, adhering by the mycelium to twigs, etc.
Rare. West of England, C. E. B.
3. O. Stephensü, Tul. ; irregular, oblong, externally rufous,
plicato-rugose at the base, cribrose, white within, milky,
at length, when exposed to the air, rufous; spores globose,
at length echinulate.—Hydnangium Stephensü, Berk. Ann. of
Nat. Hist. xiii. p. 353.
Underground, or half-buried. Bristol, C. E. B. Smell
like that of Lactarius theiogalus. Adhering by branched
fibrous roots.
HYPOGÆI . 293
54. MELANOGASTER, Cd.
Peridium adhering to creeping branched fibres which traverse
its surface, without any proper or distinct base. Cells
at first filled with pulp. Spores smooth, mostly dark.
1. M. variegatus, Tul.; at first ochraceous, then reddish-
ferruginous, minutely downy ; walls of the cells dirty-white,
yellowish, or orange ; pulp black ; spores minute.—Sow. t. 426.
Under beech-trees, Lombardy poplars, etc. South-west of
England. Not common. Sold in the market at Bath under
the name of the Red Truffle. British specimens never have
the walls of the cells decidedly yellow or orange. M.
Broomeianus, B., seems, however, to be a mere variety of
M. variegatus.
2. M. ambignns, Tul. ; very fetid, globose, dirty-olive
nearly even ; walls of cells white, reddish when exposed to the
air; pulp black; spores large, ohovate. — Tul. t. 3. / . 5, and
t. 12. f 5.
Under fir-trees, etc. West of England, C. E. B. Apethorpe,
Northamptonshire. Smell like that of asafostida.
Spores slightly acute, or more commonly with a terminal
papilla. A variety or distinct species, as large as the last, and
having its bright rust-colour, occurred at Spye Park, in which
the spores have very rarely any papillary apex. This is M,
ambiguus, /3 intermedins, B.
55. HYDNANGIUM, Wallr.
Peridium fleshy or memhranaceous. Sterile base none.
Trama vesicular. Cells at first empty, then filled with spores.
Spores echinate.
1. H. oarotæoolor, Der/-. ; oblong, rootless ; peridium thin,
rugulose, brick-red, orange within ; spores snbelliptic, pale,
echinulate. (Plate 20, fig. 1.)—Ann. of Nat. Hist. xiii. p. 351.
A'"?,’ •
■ «L
I ' I
I ;
>
P