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The spores of this species measure (5.5-) 8.6 - 13.0
(-15.5) × (4.0-) 6.5 - 9.4 (-12.0) μm, and are
broadly ellipsoid to ellipsoid (rarely subglobose or
elongate) and inamyloid. Clamps are absent from
bases of basidia.
Known from the Dominican Republic under deciduous
trees, where it occurs in November and December.
It is similar to another Caribbean species described
from Trinidad and Tobago—A. antillana,
which differs, at least,
in having proportionately broader
spores.—R. E. Tulloss and A. Wu
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composite of data from all material revised by
AW and RET: [100/3/3] (5.5-) 8.6 - 13.0 (-15.5) ×
6.5 - 9.4 (-12.0) μm, (L = 10.5 - 11.5 μm;
L' = 11.2 μm; W = 7.7 - 8.3 μm;
W' = 8.1 μm; Q = (1.10-) 1.22 - 1.54 (-1.92);
Q = 1.34 - 1.40;
Q' = 1.39), colorless, hyaline,
smooth, thin-walled, inamyloid, broadly
ellipsoid to ellipsoid (rarely subglobose or
flattened; apiculus sublateral, cylindric;
contents dominantly monoguttulate (oil drop
type), occassionally with two or more guttules;
white in deposit.
Solitary or in small groups. At 40±
m elev. Under deciduous trees or under
DISTRITO NACIONAL—Santo Domingo, Jardín
Botánico Nacional [18.4922° N/ 69.9535° W,
42 m], 18.xi.2013 C. Angelini ANGE307
(RET 692-5, nrITS seq'd.), 24.xi.2014 C. Angelini
ANGE409 (RET 692-4, nrITS seq'd.).
Macroscopically, this species resembles
originally described from
Trinidad and Tobago. Of the two, the present
species has distincly narrower spores.
The sporographs of these two species are compared in
the following figure:
R. E. Tulloss, C. Angelini, A. Wu
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Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer;
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a single collection inadvertently contains a mixture of taxa.