Lloyd Mycological Writings V4.pdf - MykoWeb

SPORES HYALINE.
and Trametes, and there are few sections in Saccardo that are not enriched by one
or more of them.
ILLUSTRATIONS. No colored figure published. Sowerby, t. 195, here referred is more
probably Fomes conchatus.
SPECIMENS. United States and Canada, over a hundred collections. We have also the
followmg from foreign countries: Spain, Rev. L. Navas (1); Samoa (2); Ceylon (4); Mexico (!)
Japan (2); Mauritius (3); Madagascar (4) ; Congo Beige (2) ; South Africa (6); India (2)- Australia
(1); Argentine (1); Brazil (9).
Compare Balansae, breviporus, caesiellus, endozonus, fucatus, holosclerus, homalopilus inamoenus,
Lawrencn, omalopilus, pertusa, purpureofuscus, rubiginosus, silaceus, subgilvus sublilacinus
also Fomes bambusinus.
Forms.
Polyporus gilvus is so common and so constant in the United States that we
hardly notice any variations in it. It changes some in color with age, but no one
would hardly venture a variety, much less a species, on the slight difference. In the
tropics it does depart into some pronounced forms, but most of the foreign collections
could not be told on comparison from the "type" form. All the "forms" have
the same "structure" spores, setae, context color, etc., but differ slightly in external
features. The following nine species are in reality but forms of Polyporus gilvus.
The last four forms are thin and could be referred to Polvstictus.
Fig. 682.
Polyporus scruposus.
POLYPORUS SCRUPOSUS (Fig. 682). Perfectly smooth forms of Polyporus
gilvus rarely occur, but the form that is called Polyporus scruposus is excessively
rough, with little tubercules and granules. It was named from the United States,
but these rough forms are more common and strongly marked in Africa than in the
States. As it grades into the type form in all degrees, it is difficult to maintain
even as a form. Fries named it, but the only type found is at Kew.
SPECIMENS. South Africa, A. J. T. Janse (typically "scrupose"), Dr. O. Pazschke; India,
G. H. Cave; West Australia, Dr. F. Stoward (strongly "scrupose"); New Caledonia, Museum Paris.
Compare crocatus, isidioides, trachodes.
POLYPORUS CARNEO-FULVUS. The surface color of Polyporus gilvus
is usually brown. In warm countries a form occurs with a reddish brown surface,
named as above. It hardly merits a distinct name.
SPECIMENS. Samoa, abundant. It was the usual form in Samoa.
Compare cupreus.
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