Lloyd Mycological Writings V4.pdf - MykoWeb

CONTEXT AND PORES WHITE OR PALE.
readily be distinguished by the context, being white in cubensis and
olive in valenzuelianus.
Trametes cubensis is a frequent species in American tropics, and
abundant specimens are at New York.
pilei.
SPECIMENS. Florida, C. G. L.; Brazil, Rev. Rick, Rev. Thiessen; Jamaica, Wm. Kirkland.
Compare albo-incarnata, comptulus, hemileucus, ostreatus.
SECTION 83. VERY THIN WHITE PLANTS.
Excepting Polyporus floriformis, all are largely resupinate, with reflexed, thin
Fig 654 Fig. 655 (Pore
Polyporus semisupinus.
POLYPORUS SEMISUPINUS (Fig. 654) .Largely resupinate,
with a thin, reflexed pileus. Pileus pure white, thin, with smooth, dull
surface, no distinct crust. Flesh white, drying firm. Pores (Fig. 655)
very minute, round, white. Spores 1x5, allantoid, cylindrical, curved.
This is not rare either in Europe or United States. It grows on
fallen branches and small stems of deciduous wood rather than on
logs. It is always largely, sometimes entirely, resupinate, and usually
has a rather thin, reflexed pileus. The color is white, drying slightly
yellowish. This plant was called by Bresadola (Fung. Kmet) Polyporus
chioneus, and it seems to fit the original description. A quite
different plant (cfr. Polyporus albellus) is in Fries' herbarium, from
Karsten, under this name, and it surely is not Polyporus chioneus
"Fries in litt." at the British Museum. We have vacillated for years
as to what to call Polyporus chioneus, and finally concluded not to so
call anything. For a long while we so named specimens of this species.
The type of Polyporus semisupinus at Kew is scanty, but character-
istic, and it is not the plant Murrill has taken it to be. It was Polyporus
nivosus (erroneously) for Morgan, and Peck named it Polyporus
semipileatus.
SPECIMENS. We have about twenty collections from Europe and United States. Most of
them were determined as "Polyporus chioneus" when received.
Compare caesiosimulans, semipileatus.
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