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spores
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.
discussion
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
brief editors
RET
name
Amanita sp-DR01
name status
cryptonomen temporarium
GenBank nos.
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Olive text indicates a specimen that has not been
thoroughly examined (for example, for microscopic details) and marks other places in the text
where data is missing or uncertain.
The following material is based on molecular studies
of ??, and other original research of C. Angelini,
A. Wu, and R. E. Tulloss.
macrochemical tests
none recorded.
partial veil
absent.
lamella edge tissue
sterile.
basidiospores
composite of data from all material revised by
AW and RET: [100/3/3] (5.5-) 8.6 - 13.0 (-15.5) ×
(4.0-)
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
elongate), adaxially
flattened; apiculus sublateral, cylindric;
contents dominantly monoguttulate (oil drop
type), occassionally with two or more guttules;
white in deposit.
ecology
Solitary or in small groups. At 40±
m elev. Under deciduous trees or under
Pinus occidentalis.
material examined
DOMINICAN REPUBLIC:
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.).
discussion
Macroscopically, this species resembles
A. antillana
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:
citations
R. E. Tulloss, C. Angelini, A. Wu
editors
RET
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a single collection inadvertently contains a mixture of taxa.