Lloyd Mycological Writings V4.pdf - MykoWeb

CONTEXT AND PORES COLORED.
stuppeus is more closely allied to Polyporus fumosus than to this section. The dark
color of context may be only a color change, in which event it would go with fumosus.
POLYPORUS SUBRADIATUS. Pileus unicolorous, sessile,
rigid (3x4x^2 cm.), with thin margin. Surface velvety, becoming
glabrous, rugulose, no distinct crust. Flesh hard, firm, yellowish
brown (antique brown). Pores minute, concolorous. Setae, none.
Spores hyaline, 3 x 5-6, smooth.
We have two collections of this from Professor A. Yasuda (No. 49
and 196). To the eye it is similar to Polyporus radiatus, same general
size, color, texture, but is quite glabrous. It differs by absence of setae
and narrower spores.
POLYPORUS PSEUDOFRUTICUM. Pileus dimidiate, ungulate. Context
dual, the old hard and ligneous, the young soft and spongy. Surface soft. Color of
old context cinnamon brown, of the new growth, yellow ocher. Setae, none. Spores
2^2 x 3^4, hyaline, smooth.
The old context is harder, but the young is of the same spongy nature as Polyporus
fruticum. Were it not for the hyaline spores, it would be referred to fruticum.
This is probably a better Fomes, and so is Polyporus fruticum at times. Notwithstanding
the discrepancies of spore colors, I think it is better classed as a form of
Polyporus fruticum. Specimen from Rev. C. Torrend, Bahia, Brazil.
SECTION 96. CONTEXT BROWN. SETAE PRESENT.
POLYPORUS GILVUS. Pileus sessile, applanate, thin, y2 -\yz
cm., often imbricate. Surface brown, even, usually slightly rugulose.
Context hard, firm, of the growing plant often bright gilvus (yellow
ocher), varying to brown (cinnamon brown) when old. Ordinarily the
context is more brown than yellow. Pores are small, round, 3-10 mm.
long, with brown tissue and mouth. Setae abundant, slender, sharp,
projecting 12-16 mic. Spores hyaline, 3>^x4-5, smooth.
Polyporus gilvus is a most abundant plant in the United States, where it was
named at an early date by Schweinitz. It grows on all kinds of frondose wood, but
has a special liking for beech. Usually the old beech logs are densely covered with
it. It would seem, from the abundant specimens that have reached Europe, that it
is equally common in the West Indies, South America, Pacific Islands, Australia,
East Indies, Japan, Philippines, India, and seems particularly common in Africa.
It is strangely rare in Europe, and we have never seen but two European collections.
One we have from Rev. L. Navas, Spain, the other, collected by Quelet, is in Fries'
herbarium. The occurrence of the plant in England is based on an old tradition, not
authentic at the start, and not at all probable.
In the United States, mycologists have always correctly known the plant.
Not one of them ever discovered that it was a "new species." That, however, was
reserved for Cooke, who, we believe, was the only one to discover Polyporus gilvus
to be a new species in its native haunts. Ellis got mixed on one of its forms. It has
not been so fortunate elsewhere, however. From the tropics and foreign countries
Polyporus gilvus, and its forms, has been named about twenty times, and few new
species hunters of any prominence have failed to find it. It was an especial favorite
with Berkeley and Leveille, each having discovered and named it five different times.
Cooke impartially distributed those "species" through Fomes, Polyporus, Polystictus,
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