Amanita rubroflava

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name	Amanita rubroflava
name status	nomen acceptum
author	Yang-Yang Cui, Qing Cai & Zhu L. Yang
english name	"Yunnan Red and Yellow slender Caesar"
intro	This text is derived from the original description of Amanita rubroflava. The fruiting bodies of Amanita rubroflava are medium-sized to large.
cap	The cap is 70 – 120 mm wide, convex to planar, raised over the stem (umbonate), red to orange-red in the center, gradually changing towards the margin to yellow or yellowish. The cap’s margin is radially grooved for about 20% to 40% of the cap's radius and lacks material hanging from its edge. The flesh is white, yellowish to brown.
gills	The gills are free, crowded, and yellow. The short gills are truncate and plentiful.
stem	The stem is 150 – 220 × 7 – 30 mm, nearly cylindric or narrowing upwards; its surface is yellow and covered with yellow fibers in a snakeskin pattern. The stem lacks a basal bulb. The volva is saccate, 50 – 70 × 30–50 mm,and membranous and has white to dirty white inner and outer surfaces. The ring is yellow to yellowish and is on the top part of stem.
odor/taste	The odor and taste were not recorded for the present species.
spores	The spores measure 8.0 – 10.0 × 6.5 – 8.5 µm and are subglobose to broadly ellipsoid and inamyloid. Clamps are common at bases of basidia.
discussion	Amanita rubroflava corresponds to Amanita sp. 4 in Yang (2015). This species is known to occur only in Yunnan, China. In China, A. rubroflava can be confused with A. hemibapha (Berk. & Broome) Sacc. However, A. hemibapha differs from A. rubroflava by its infrequently umbonate cap, narrower spores (Q = (1.36-) 1.43 - 1.67 (-1.68)) and its tropical distribution.—Yang-Yang Cui and Rachel Warner
brief editors	RET

name

Amanita rubroflava

author

Yang-Yang Cui, Qing Cai & Zhu L. Yang. 2018. Fungal Diversity 91(1): 61, figs. 3(k-l), 12.

name status

nomen acceptum

english name

"Yunnan Red and Yellow slender Caesar"

MycoBank nos.

824973

GenBank nos.

Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages. These pages will eventually be made live, so try again later.

accession	locus	voucher	source
MH486829	nrLSU	(HKAS 83715)	Cui et al. (2018)
NG_064595	nrLSU	(HKAS 83089)	Cui et al. (2018)
MH486237	rpb2	(HKAS 101434)	Cui et al. (2018)
MH485745	beta-tubulin	(HKAS 83715)	Cui et al. (2018)
MH485741	beta-tubulin	(HKAS 101434)	Cui et al. (2018)
MH508566	nrITS	(HKAS 101434)	Cui et al. (2018)
MH508571	nrSSU	(HKAS 83748)	Cui et al. (2018)
MH508570	nrSSU	(HKAS 83715)	Cui et al. (2018)
MH486824	nrLSU	(HKAS 101414)	Cui et al. (2018)
MH486826	nrLSU	(HKAS 82576)	Cui et al. (2018)
MH485743	beta-tubulin	(HKAS 83089)	Cui et al. (2018)
MH485744	beta-tubulin	(HKAS 83649)	Cui et al. (2018)
MH486827	nrLSU	(HKAS 83089)	Cui et al. (2018)
MH509051	tef1-alpha	(HKAS 101414)	Cui et al. (2018)
MH509054	tef1-alpha	(HKAS 83089)	Cui et al. (2018)
MH486239	rpb2	(HKAS 83649)	Cui et al. (2018)
MH485742	beta-tubulin	(HKAS 82576)	Cui et al. (2018)
MH486240	rpb2	(HKAS 83715)	Cui et al. (2018)
MH486238	rpb2	(HKAS 83089)	Cui et al. (2018)
MH509053	tef1-alpha	(HKAS 82576)	Cui et al. (2018)
MH485746	beta-tubulin	(HKAS 83748)	Cui et al. (2018)
MH485741	beta-tubulin	(paratype, HKAS 101434)	Kunming Inst. Bot., Chinese Acad. Sci., Kunming, Yunnan, China
MH486825	nrLSU	(HKAS 101434)	Cui et al. (2018)
MH509056	tef1-alpha	(HKAS 83715)	Cui et al. (2018)
MH486828	nrLSU	(HKAS 83649)	Cui et al. (2018)
MH508567	nrITS	(HKAS 82576)	Cui et al. (2018)
AY436460	nrITS	(HKAS 38416)	L. Zhang et al. Kunming Inst. Bot., Hei Long Tan
MH508568	nrITS	(HKAS 83089)	Cui et al. (2018)
MH486241	rpb2	(HKAS 83748)	Cui et al. (2018)
MH486236	rpb2	(HKAS 101414)	Cui et al. (2018)
MH509052	tef1-alpha	(HKAS 101434)	Cui et al. (2018)
MH486830	nrLSU	(HKAS 83748)	Cui et al. (2018)
MH509057	tef1-alpha	(HKAS 83748)	Cui et al. (2018)

holotypes

HKAS 83089

intro

The following text may make multiple use of each data field.

The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material.

The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate.

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 not directly from the protolog of the present taxon

discussion

HKAS 38416 (ITS = AY436460), which was identified as A. hemibapha in Zhang et al. (2004) and Yang (2005), should be a member of A. rubroflava.

editors

RET

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Sporograph Form T.B.D.