Amanita ochrophylloides - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella

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name	Amanita ochrophylloides
name status	nomen acceptum
author	D. A. Reid
english name	"Pale-Gilled Barefoot Lepidella"
cap	The cap of Amanita ochrophylloides is up to 150 mm wide, convex then plano-convex and finally slightly depressed toward the center, pale brown, with the margin of the cap conspicuously appendiculate with fragments of the volva in young specimens. The cap is covered with numerous volval warts (sometimes dark brown).
gills	The gills are pale golden yellow and up to 13 mm broad.
stem	The stem is up to 100 × 26 mm, white but discoloring to various shades of brown. The bulb is up to 45 mm wide. The ring is pronounced, off-white, and may disappear in mature specimens. The volva forms a short free limb at the top of the basal bulb.
odor/taste	The smell is very faintly mealy.
spores	The spores measure 7.0 - 10.0 × 5.0 - 8.5 µm and are subglobose to broadly ellipsoid and amyloid. Clamps are absent at bases of basidia.
discussion	This species was originally described from the state of Victoria, Australia. An original collection was described as occurring in rocky, black soil amongst ferns under eucalyptus of the "peppermint" group. Amanita ochrophylloides belongs in Amanita subsection Gymnopodae (see Amanita gymnopus Corner & Bas).—R. E. Tulloss
brief editors	RET

name

Amanita ochrophylloides

author

D. A. Reid. 1978. Victorian Naturalist 95: 48.

name status

nomen acceptum

english name

"Pale-Gilled Barefoot Lepidella"

etymology

-oides, "like" + ochrophylla, here taken as a name (i.e., Amanita ochrophylla); hence, "like A. ochrophylla"

MycoBank nos.

308573

GenBank nos.

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accession	locus	voucher	source



No data available in table

holotypes

selected illustrations

Reid. 1980. Austral. J. Bot., Suppl. Ser. 8: 44, figs. 28(a-c), 83-84.

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 is derived from the protolog and from (Reid, 1980).

pileus

from protolog: up to 150 mm wide, pale brown, convex then plano-convex, finally slightly depressed in disc; context not recorded; margin conspicuously appendiculate in young specimens; universal veil as numerous strobiliform warts, occasionally dark brown (possibly due to handling).

lamellae

from protolog: pale golden yellow, up to 13 mm broad; lamellulae not described.

stipe

from protolog: up to 100 × 26 mm, white, discoloring in various shades of brown; bulb conspicuous, up to 45 mm wide; context not described; partial veil distinct, off-white, sometimes detersile and lost in mature specimens; universal veil as short free limb on bulb in younger specimens, less conspicuous with age.

odor/taste

from protolog: Odor very faint, mealy. Taste not recorded.

macrochemical
tests

none recorded.

pileipellis

not described in protolog.

pileus context

not described in protolog.

lamella trama

not described in protolog.

subhymenium

from protolog: clamps "may be present on some...hyphae."

basidia

from protolog: up to 76 × 13.2 μm, 4-sterigmate; clamps usually lacking.

universal veil

from protolog: On pileus, superficial layer: hyphae up to 14 μm wide,thin-walled, branched, with narrow side branches (2 μm wide) often at right angles to broader hyphae of their origin; inflated cells occasional, sometimes dissociating, up to 16.5 μm wide, elongate-fusiform to lanceolate; clamps absent. On cap, lower portion: having equal proportions of hyphae and inflated cells; hyphae "glassy," frequently branched, highly refractive, up to 5 μm wide; inflated cells in dissociating chains, short or clavate or ellipsoid or ovoid or barrel-shaped; up to 60 × 25 μm.

stipe context

not described in protolog.

partial veil

not described in protolog.

lamella edge tissue

from protolog: inflated cells up to 18 μm wide, clavate to ovoid to subglobse, in chains, dissociating. [Note: originally misdescribed by Reid as "cheilocystidia."—ed.]

basidiospores

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from protolog: from spore deposit: [-/-/-] 7.0 - 9.0 × 6.5 - 8.5 μm, (est. Q = 1.05 - 1.10), amyloid, subglobose; apiculus not recorded; contents not recorded; color in deposit not recorded. from gill: [-/-/-] 7.0 - 10.0 × 5.0 - 8.0 μm, (est. Q = 1.25 - 1.40). [Note: This difference in spore shape (with the potentially more mature spores of the spore print subglobose) is very unusual and, hence, a suspect result. Reid often seems to find two distinct sets of spores different shape within the spores produced by a single fruiting body and reports them with separate descriptions as if the shapes were not part of a single continuum of forms. This practice is rarely seen in other authors and is difficult to comprehend.—ed.]

ecology

from protolog: On black rocky soil amongst bracken under Eucalyptus sp. of the "peppermint" group.

material examined

from protolog: AUSTRALIA: VICTORIA—Unkn. LGA - Gippsland region, SE of Matlock, B. B. Jordan Divide track, btwn. Roberts and Jordan River [850 m], 26.iii.1977 L. M. Green s.n. (holotype, K).

discussion

Reid's description of the universal veil in the present species is consistent with that which Bas (1969) provided for A. ochrophylla. And the present species can be placed within Amanita subsection Gymnopodae Bas along with A. ochrophylla and A. gymnopus.

The following compares available data on the spores of A. ochrophylla and A. ochrophylloides:

citations

—R. E. Tulloss

editors

RET

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name	Amanita ochrophylloides
name status	nomen acceptum
author	D. A. Reid
english name	"Pale-Gilled Barefoot Lepidella"

name	Amanita ochrophylloides
bottom links	[ Keys & Checklists ] [ Australia/New Zealand List ]

name	Amanita ochrophylloides
bottom links	[ Keys & Checklists ] [ Australia/New Zealand List ]

Spore data for collections
provisionally identified as: Amanita ochrophylloides D. A. Reid

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

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