Lloyd Mycological Writings V4.pdf - MykoWeb

SPORES HYALINE.
smaller spores (compare Note 147, Letter 49). We do not know this
species in Europe. The flesh dries hard and contracts much in drying.
SPECIMENS. Mostly our own collection, it being our most common, white species around
Cincinnati.
POLYPORUS CALKINSII. Pileus usually applanate, sometimes
ungulate, varying from one to four centimeters thick. Surface
smooth (or slightly rough), but with no distinct crust; ochraceous in
dried specimens. Flesh white, soft when growing, but drying hard
and rigid. Pores very minute, the tissue isabelline, the mouths adustus,
drying very hard and rigid. Spores globose, hyaline, 3>^-4 mic.
Calkins sent this plant abundantly to Ellis from Florida twenty
years ago. Ellis named it Polyporus Calkinsii, but did not publish it.
It was published by Murrill, also, as Polyporus Palmarum, Polyporus
nivosellus, and Trametes lignea. The latter two are thicker and of
different shape, but we believe all have the same essential characters,
and appear to us to be the same plant. It is quite a common species
in the American tropics and often on palms, but occurs also in the
East. We have specimens from Malay, which we referred at first to
Polyporus ostreiformis but the ; type of ostreiformis is not the same
to us.
Compare ligneus, nivosellus, Palmarum.
POLYPORUS OSTREIFORMIS. Pileus sessile, applanate,
about 7-10 mm. thick. Surface rough, dull, greyish, or with adustus
spots. Flesh hard, rigid, tough, greyish white. Pores minute, greyish.
Spores globose, 4-4^ mic.
This is a species of the East, quite similar to Polyporus Calkinsii
of American tropics, but with different surface. The name has little
application. It has not much more resemblance to an oyster than it
has to a shingle.
SPECIMENS. Java, Dr. J. van Breda de Haan (compared with type at Kew), Dr. van Leeuwen;
also two doubtful collections from Japan.
Compare griseus.
POLYPORUS SUBMURINUS. Pileus white, slightly cinereous,
drying darker (murinus). Surface anoderm, no distinct crust, rough,
uneven. Flesh white, drying hard, with a faint cinereous tinge. Pores
small, round, drying hard and firm. Spores 3^ x 8, hyaline, straight,
smooth, cylindrical.
This is a plant of the American tropics. We have collections
which we made in Florida, and which are all we have. It is quite close
to Polyporus Spraguei, in fact, liable to be confused with it, but was
put in a different genus by its author. It is also quite close to Fomes
of the East.
abruptus
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