ilst _Merulius himantoides_, Fr., is much more
delicate, sometimes running over plants in conservatories.

HYDNEI.--There is nothing calling for special note on the habitats of
these fungi. The stipitate species of _Hydnum_ are some of them found
in woods, others on heaths, one on fir-cones, while the rest have
similar habitats to the species of _Polyporus_.

AURICULARINI.--The genera _Hymenochoete_, _Stereum_, and _Corticium_,
with some species of _Thelephora_, run over corticated or decorticated
wood; other species of _Thelephora_ grow on the ground. The Pezizoid
forms of _Cyphella_ and _Solenia_, like species of _Peziza_, sometimes
occur on bark, and of the former genus some on grasses and others on
moss.

CLAVARIEI.--The interesting, often brightly-coloured, tufts of
_Clavaria_ are usually found amongst grass, growing directly from the
ground. Only in rare instances do they occur on dead leaves or
herbaceous stems. _Calocera_ probably should be classed with the
_Tremellini_, to which its structure seems more closely allied. The
species are developed on wood. The species of _Typhula_ and
_Pistillaria_ are small, growing chiefly on dead herbaceous plants.
One or two are developed from a kind of _Sclerotium_, which is in fact
a compact perennial mycelium.

TREMELLINI.--These curious gelatinous fungi are, with rare exceptions,
developed on branches or naked wood; _Tremella versicolor_, B. and
Br., one of the exceptions, being parasitic on a species of
_Corticium_, and _Tremella epigaea_, B. and Br., spreading over the
naked soil. This completes our rapid survey of the habitats of the
_Hymenomycetes_. Very few of them are really destructive to
vegetation, for the Agarics and Polypori found on growing trees are
seldom to be seen on vigorous, but rather on dead branches or
partly-decayed trunks.

The GASTEROMYCETES are far less numerous in species, and also in
individuals, but their habitats are probably more variable. The
_Hypogaei_, or subterranean species, are found either near the surface
or buried in the soil, usually in the neighbourhood of trees.

PHALLOIDEI.--In most cases the species prefer woody places. They are
mostly terrestrial, and have the faculty of making their presence
known, even when not seen, by the fetid odour which many of them
exhale. Some of them occur in sandy spots.

PODAXINEI.--These resemble in their localities the _Trichogastres_.
Species of _Podaxon_ affect the nests of Termites in t