Fungi -- Great Britain -- Identification; Mushrooms -- Identification
Early mycologists believed that the club-shaped nature of the fruit-body
was important in the classification of these fungi. Thus the Earth
Tongues (_Geoglossum_, see Plate 57), the Stag’s horn fungi and
relatives (_Xylosphaera_ see p. 204), both Ascomycete groups, the
Dacrymycetales (a group of jelly-fungi, see p. 180) and the true
fairy-clubs were all classified together. It was the ‘Father of
Mycology’, the Swede, Elias Fries, who in 1821, as in many other groups
of fungi, made an attempt to make some sense of the chaos. By very
careful observations, and what is so amazing without using a microscope,
he was able to separate the tough stemmed and gelatinous stemmed groups
from the more slender or coral-like ones. Fries was a very keen observer
and noticed features which many modern authorities miss in the field
because they rely too heavily on the microscope. Fries’ system was used
almost unchanged until the second half of this century; its beauty was
its simplicity in that it joined together in one group all those fungi
with simple basidia and the spore-bearing tissue distributed all around
a simple club or around the branches of a complex fruit-body resembling
a coral. However, by a careful examination of the microscopic
structures, such as the spores and hyphae and the development of the
fruit-body, it has been found necessary to separate these fungi still
further. The ecology of the club-fungi has assisted in an understanding
of these proposed divisions.
The larger many branched clavarias, more correctly placed in the genus
_Ramaria_, are to be found on bare soil in woodlands and plantations;
_R. ochraceo-virens_ is common in conifer plantations and can be
recognised by the long ornamented spores, which characterise this group
of fungi, and the fact that the sandy-coloured fruit-body becomes dark
olive-green on bruising (see p. 170).
_Clavariadelphus pistillaris_ is the largest of our simple club-fungi;
it may grow up to 200 mm high and 50 mm wide. This fungus has a wrinkled
outer surface and sometimes the apex of the club becomes flattened and
lacks basidia; this suggests a possible relationship, perhaps
evolutionary, to the primitive chanterelles (see p. 162)--also woodland
fungi. _Clavulina_, a complex group of dull or whitish, branched
fruit-bodies, has been described earlier and the genus is characterised
by the large spores and 2-spored basidia; they are woodland fungi also.
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