ve of the family is very scarce. In Scania, the most
southern province of Sweden, there is likewise but one genus and one
species belonging to it, viz., the _Mutinus caninus_. Among other
members of the _Phalloidei_, may be further mentioned the _Lysurus_ of
China, the _Aseroee_ of Van Diemen's Land, and the _Clathrus_, one
species of which, _C. cancellatus_, has a very wide geographical
range; for instance, it is found in the south of Europe, in Germany,
and in America; it occurs also in the south of England and the Isle of
Wight; whereas the other species of this genus have a very limited
distribution.
The _Tuberacei_[D] are remarkable amongst the fungi in being all of
them more or less hypogeous. They are natives of warm countries, and
are distributed into numerous genera and species. The _Tuberacei_
constitute in Northern latitudes a group of fungi very poor in
specific forms. The few species of the _Hymenogastres_ belonging to
Sweden, with the exception of _Hyperrhiza variegata_ and one example
of the genus _Octaviana_, are confined to the southern provinces. The
greater part of this group, like the _Lycoperdacei_, are met with in
the temperate zone. Most examples of the genus _Lycoperdon_ are
cosmopolitan.
The _Nidulariacei_ and the _Trichodermacei_ appear to be scattered
over the globe in a uniform manner, although their species are not
everywhere similar. The same statement applies to the _Myxogastres_,
which are common in Lapland, and appear to have their central point of
distribution in the countries within the temperate zone. At the same
time, they are not wanting in tropical regions, notwithstanding that
the intensity of heat, by drying up the mucilage which serves as the
medium for the development of their spores, is opposed to their
development.[E]
Of the _Coniomycetes_, the parasitic species, as the _Caeomacei_, the
_Pucciniei_, and the _Ustilagines_, accompany their foster-plants into
almost all regions where they are found; so that smut, rust, and
mildew are as common on wheat and barley in the Himalayas and in New
Zealand as in Europe and America. _Ravenelia_ and _Cronartium_ only
occur in the warmer parts of the temperate zone, whilst _Sartvellia_
is confined to Surinam. Species of _Podisoma_ and _Roestelia_ are as
common in the United States as in Europe, and the latter appears also
at the Cape and Ceylon. Wherever species of _Sphaeria_ occur there the
_Sphaeronemei_ are found, but they do not
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