Lloyd Mycological Writings V4.pdf - MykoWeb

SPORES HYALINE.
largely wrong, for conchoides is a thin, white,
Polyporus
tropical plant close to
dichrous.
In the northern regions of the United States and Europe Polyporus
dichrous is very uniform, but it takes many color forms in the
tropics, as follows:
ILLUSTRATIONS. Sturm's flora, fasc. 16, t. 39. This seems to be the only one, and it is very
good. The pores are deeper purplish than shown, but it is fair.
SPECIMENS. Many from America, several from Europe; Japan, A. Yasuda a very thin
form; Brazil, Rev. Rick, Rev. Thiessen, exactly same color hymenium as our United States plant-
South Africa, Miss A. V. Duthie.
Compare Curreyanus, Macouni, nigro-purpurascens.
POLYPORUS MADAGASCARENSIS This is a brown form, with thick,
much more fragile flesh than the European form. We have this only from Madagascar,
Henri Perrier de la Bathie.
POLYPORUS CROCEO-PALLENS is a form recently named from Java with
yellow pores. There is a cotype at Kew.
POLYPORUS CONCHOIDES. Plant when growing pure
white, thin, dimidiate, imbricate. Flesh thin, white. Pores minute,
white when fresh, drying flesh color, gelatinous. Spores allantoid,
1-1^x4-5.
Originally from India, Polyporus conchoides is widespread in
the tropics. It was described from dried specimens as having flesh
colored pores, and when I recently collected it in Cuba, with pure
white pores, I did not recognize it until in drying the pores turned
flesh color. Some one started the story that our common, temperate
region plant with dark, purplish pores, Polyporus dichrous, was
Polyporus conchoides, and this mistake permeates most of our American
literature. While Polyporus conchoides is not rare in American
tropics, I do not know it in the United States, even in Florida.
The pores are so minute that Leveille, with his customary ac-
curacy, discovered it to be a "new species" of Thelephora (sic).
The original collection sent to Europe was from South America, and
was called Boletus Thelephoroides by Hooker. It passes in Saccardo
as a Polystictus, and for eighty years the type in good condition has
remained unrecognized in the cover at Kew. We presume the jugglers
will juggle the name Polyporus conchoides as soon as they find
it out.
SPECIMENS. Madagascar, Henri Perrier de la Bathie; Ceylon, T. Fetch; Brazil, Rev. Rick,
Rev. Thiessen; Nicaragua, C. L. Smith; Cuba, C. G. Lloyd.
POLYPORUS AMORPHUS. Pileus thin, concolorous, dimidi-
ate, imbricate, often effused and subresupinate. Surface white,
smooth, minutely silky pubescent. Flesh white, subgelatinous, drying
rigid. Pores small to medium, shallow, varying in color white, reddish,
or flesh color, and rarely deep yellow. Spores allantoid. I>^x4,
cylindrical, curved.
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