Lloyd Mycological Writings V4.pdf - MykoWeb

Section Tabacinus.
Polystictus tabacinus.
NOTE 108. As we get this plant from various localities, we are becoming convinced
that it is not practical to distinguish Polystictus tabacinus from Polystictus iodinus.
We have exactly same plant in our Southern States.
Fomes hornodermus.
Fomes perlevis.
FOMES.
Context color white.
Context color rose or latericeous.
(cfr. Letter No. 39.) Mr. Henri Perrier de la Bathie sends this in abundance.
How this most peculiar species escaped being named until such a late date is a mystery.
Fomes nontostus (Bresadola's determination as Fomes semitostus).
I have compared these with the type at Kew and find it has same pores and context
color and texture, but the surface is different. In the type it is smooth, reddish brown,
and the name "half scorched" is not bad. In these specimens from Madagascar there
is no indication of this. The pale, sulcate surface is better called "nontostus." The type
of Fomes semitostus has practically no context. It is well developed in these specimens,
soft, punky, pinkish cinnamon.
Fomes sculpturatus.
Context pale, pores darker.
Since this plant has been named, we conclude that it is practically the same
species as Fomes mirabilis from Malay. The spores are very different. Globose, brown,
7-8 mic. smooth, punctate in Fomes mirabilis ; large, 14 x 20 mic. ovate, brown in Fomes
sculpturatus. We think perhaps that Fomes sculpturatus is the conidial spored form of the
Malay plant. It is curious, however, that in an ample sending from Henri Perrier de la
Bathie all had these same large spores.
Context color brown, ferruginous or fulvous.
Fomes senex.
A frequent species in the East with velutinate hymenium, pale spores, and setae
on the pores. We have heretofore called this plant Fomes Haskarlii, and Bresadola refers
it to Fomes Korthalsii both names of Leveille, and both doubtful, owing to confusion that
exists as to the types. We are convinced that it is Fomes senex in the original meaning
of Montagne (Juan Fernandez specimens, not the Cuban reference of Montagne), and,
owing to the doubt as to both of Leveille's names, we shall adopt the name Montagne gave
the plant.
Fomes senex, the type form, is a species of wide distribution. There is an abundance
of it at Leiden, which was referred by the old Dutch mycologists to Fomes ferruginosus.
We have an ample collection from Dr. J. C. Koningsberger, Java. It has a rugulose sur-
face, very little context, and many layers of pores.
Fomes velutinosus.
NOTE 110. We believe this is entitled to a name and that it is different from
Fomes senex, to which we have heretofore referred it. It has the same context, color,
and setae, but differs in its surface, its texture, and its pore mouths. The surface is much
smoother, and often has a banded effect, such as has Polyporus licnoides (the type). The
context is softer and well developed. In Fomes senex there is very little context, and
it is harder and difficult to cut. The most marked difference is in the pore mouths, which
in Fomes velutinosus are more strongly velutinate and of a deeper color. The velutinate pore
mouths are caused by dense, colored hyphae, projecting 20 to 30 mic.
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