Amanita sp-T31 - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella

name

Amanita sp-T31

author

Tulloss & D. P. Lewis

name status

cryptonomen temporarium

GenBank nos.

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accession	locus	voucher	source
KP724393	AJ0132-103	15.ix.2012 P. G. Harvey s.n. (RET 516-3)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724671	tef1	15.ix.2012 P. G. Harvey s.n. (RET 516-3)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724396	AJ0132-103	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724118	AJ0000-2	15.ix.2012 P. G. Harvey s.n. (RET 516-3)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KF877080	rpb2	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724670	tef1	27.ix.2010 Patrick G. Harvey s.n. (RET 453-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KF877173	tef1	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
MK351813	nrITS	30.viii.2014 P. G. Harvey s.n. (RET 637-9)	L. V. Kudzma, Annandale, NJ
KP724117	AJ0000-2	27.ix.2010 Patrick G. Harvey s.n. (RET 453-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724672	tef1	7.vii.2013 P. G. Harvey s.n. (RET 552-4)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724392	AJ0132-103	27.ix.2010 Patrick G. Harvey s.n. (RET 453-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724119	AJ0000-2	7.vii.2013 P. G. Harvey s.n. (RET 552-4)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724674	tef1	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KP724394	AJ0132-103	7.vii.2013 P. G. Harvey s.n. (RET 552-4)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
JX844757	nrITS (partial)	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KF877288	nrLSU	22.vi.1999 D. P. Lewis 6189 (RET 365-1)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto

intro

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 notes and photographs of the cited collectors, molecular research of Santiago Sanchez-Ramírez, and additional original research by R. E. Tulloss.

pileus

initially brownish red to brownish red-orange to red-orange, with margin quickly becoming yellow and sometimes fading to yellow-white to whitish to white; universal veil absent or, infrequently, as white membranous patch..

lamellae

no data recorded.

stipe

initially yellow, but fading upon expansion and sometimes appearing white in photographs, decorated with scales yellow at first and paler yellow with age; partial veil ??; universal veil saccate, tubular, with sides of stipe base attached to sack, with yellowish limbus internus.

odor/taste

neither recorded.

macrochemical
tests

none recorded.

lamella edge tissue

sterile.

basidiospores

send to graphing tool

[100/5/2] (7.3-) 7.6 - 10.6 (-14.1) × (5.0-) 5.3 - 6.8 (-8.5) µm, (L = 8.3 - 9.5 µm; L' = 9.0 µm; W = 5.6 - 6.5 µm; W' = 6.0 µm; Q = (1.30-) 1.33 - 1.67 (-1.92); Q = 1.46 - 1.54; Q' = 1.49), hyaline, colorless, smooth, thin-walled, inamyloid, ellipsoid to elongate, sometimes expanded at one end, adaxially flattened, sometimes present as "giant spores"; apiculus sublateral, cylindric, proportionately small; contents dominantly monoguttulate; ?? in deposit.

ecology

Gregarioius. Texas: Under Pinus especially after heavy rains in September and October, sometimes in "fairy rings."

material examined

U.S.A.: MISSOURI—Ste. Genevieve Co. - W of Ste. Genevieve, Hawn St. Pk., 27.ix.2010 Patrick G. Harvey s.n. [mushroomobserver #53888] (RET 453-1), 15.ix.2012 P. G. Harvey s.n. [mushroomobserver #109726] (RET 516-3), 7.vii.2013 P. G. Harvey s.n. [mushroomobserver #138910] (RET 552-4), 30.viii.2014 P. G. Harvey s.n. [mushroomobserver #175619] (RET 637-9, nrITS seq'd.). TEXAS—Jasper Co. - Evadale, Inland Eastex paper mill, along entrance rd., 3.x.1997 David P. Lewis 5908 (RET 285-1), 27.viii.1998 D. P. Lewis 6060 (RET 290-1), 22.vi.1999 D. P. Lewis 6189 (RET 365-1).

discussion

This species was first segregated morphologically from Texas material collected in the late 1990s by David Lewis and was assigned the temporary code "sp-T31."

citations

—R. E. Tulloss

editors

RET

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Spore data for collections
provisionally identified as: Amanita sp-T31 Tulloss & D. P. Lewis

Spore data sets and their composite

Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer; and explanations prepared for this site talk about specimen-observer pairs associated with each data set. Combining more data into a single data set is non-optimal because it obscures observer differences (which may be valuable for instructional purposes, for example) and may obscure instances in which a single collection inadvertently contains a mixture of taxa.

basidiospore definition

Spore Measurements by Collection

[top]

name	Amanita sp-T31
name status	cryptonomen temporarium
author	Tulloss & D. P. Lewis
images	1. Amanita sp-T31, Hawn St. Pk., Ste. Genevieve Co., Missouri, U.S.A. (RET 453-1) 2. Amanita sp-T31, Hawn St. Pk., Ste. Genevieve Co., Missouri, U.S.A. (RET 516-3)
intro	The following is based on collections of David P. Lewis, morphological studies of RET, and genetic sequencing by Santiago Sanchez.
cap	Initially, this species has a brownish red or brownish red-orange or red-orange cap with a margin that quickly becomes yellow; the margin sometimes fades to yellow-white to whitish to white. Infrequently a patch of white, membranous volva may remain on the cap.
gills	no information available.
stem	The stem appears white in photographs (possibly with faint yellow scales) and has its base attached to the volval sack on the sides of the stem—not only at the stem's very bottom. The volva has a yellowish internal limb.
odor/taste	no information available.
spores	The spores measure (7.3-) 7.6 - 10.6 (-14.1) × (5.0-) 5.3 - 6.8 (-8.5) µm and are ellipsoid to elongate (occasionally) and inamyloid. Clamps are present at bases of basidia.
discussion	At present, this taxon is known only from Jasper Co., Texas, and from Ste. Genevieve Co., Missouri, in the U.S.A. It is morphologically similar to Amanita sp-AR01, Amanita sp-F11, and Amanita jacksonii.—R. E. Tulloss
brief editors	RET

name	Amanita sp-T31
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