Amanita sp-AUS03

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name

Amanita sp-AUS03

author

Tulloss

name status

cryptonomen temporarium

english name

"Australian Red-Cap Slender Caesar"

GenBank nos.

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accession	locus	voucher	source
KF877283	nrLSU	18.ii.1992 P. Reddell & M. Castellano s.n. [R. E. Halling 6815] [E No. 4682] (PERTH??; NY)	S. Sanchez et al., (direct deposit), Roy. Ontario Mus., Toronto
KF877168	tef1	18.ii.1992 P. Reddell & M. Castellano s.n. [R. E. Halling 6815] [E No. 4682] (PERTH??; NY)	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 the collectors' notes on the fresh material and original research of R. E. Tulloss.

pileus

70 - 80 mm wide, more or less uniformly reddish (6B-C7), with yellow showing between ridges of sulcate margin, convex to planoconvex; context dominantly white, unchanging, with yellow region immediately below pileipellis; margin striate; universal veil absent.

[Note: This can be extended from photograph.—ed.]

lamellae

adnate, crowded, whitish with yellow tint in side view, with yellow fimbriate edge; lamellulae truncate.

[Note: This can be extended from photograph.—ed.]

stipe

80 - 85 × 9 - 11 mm, orange (6A8) above partial veil, subcylindric, dry, with yellow ground, decorated with scattered orange (6A8) patches; context hollow, white, unchanging; partial veil orange (6A8), membranous; universal veil as saccate volva, white, membranous.

[Note: This can be extended from photograph.—ed.]

odor/taste

Odor mild. Taste not recorded.

macrochemical
tests

none recorded.

lamella trama

bilateral, divergent: ??.

subhymenium

pseudoparenchymatous (cellular); inflated cells subglobose to broadly ellipsoid to ellispoid (e.g., 10.7 - 15.3 × 10.2 - 11.2 μm), in 2 (-3) layers below bases of longest basida.

basidia

35^- - 45⁺ × 8.3^- - 8.5⁺, ??; clamps common.

basidiospores

send to graphing tool

[40/2/1] (8.4-) 8.5 - 10.2 (-11.3) × (4.3-) 5.6 - 6.5 (-7.4) μm, (L = 9.3 - 9.6 μm; L' = 9.4 μm; W = 6.1 - 6.3 μm; W' = 6.2 μm; Q = (1.31-) 1.40 - 1.68 (-1.95); Q = 1.53 - 1.54; Q' = 1.54), hyaline, colorless or sometimes faintly yellow, smooth, thin-walled, ellipsoid to elongate, rarely expanded at one end, adaxially flattened; apiculus sublateral, cylindric; contents mono- or multiguttulate, with or without additional small granules; color in deposit not recorded.

ecology

Paired. Associated with Allocasuarina littoralis and Eucalyptus intermedia.

material examined

AUSTRALIA: QUEENSLAND—?? - N of Little Crystal Creek, Paluma Rd., 18.ii.1992 P. Reddell & M. Castellano s.n. [R. E. Halling 6815] [E No. 4682] (PERTH??; NY).

discussion

The habit of the fruiting body of this species is more like that of the bright-colored central African taxa than like that of the southeast Asian taxa and A. sp-AUS02—in the present species the fruiting body has a proportionately shorter stipe than A. sp-AUS02 and a pileus with little or no umbo.

A sporograph comparison of the present species and A. sp-AUS02 follows:

citations

—R. E. Tulloss and R. E. Halling

editors

RET

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