The following is derived from the original description of Amanita brunneistriatula.
The cap is 27 - 42 mm wide, and brown to dark brown in the center. The cap's flesh
is firm and white with an edge that is radially grooved. Small patches and
pointed gray-brown warts are present, that are densest over the center
and scattered at the edge.
The white gills are attached to the stem, moderately broad, and not very close together. The short gills were described as all being the same length.
The stem is 25 - 35 × 4 - 12 mm and is decorated above the bulb with rows of fine white fibers. The white ovoid bulb is 9 - 13 × 10 - 15 mm, and sometimes has a narrow raised ridge forming a margin around its top. The stem's flesh is white, firm, and solid. The stem's hanging ring is positioned at the top of the stem and flares at its edge; it is very faintly striated.
Taste and odor were not recorded.
The spores are 9 - 11 × 7 - 8.5 μm, amyloid, and subglobose to broadly ellipsoid. No clamps are present at bases of basidia.
This specimen was described from western Australia, were it was found in groups, in sandy soil covered by low moss near Port Gregory Gums (Eucalyptus calophylla).—R. E. Tulloss and N. Goldman
O. K. Mill. 1992a ("1991"). Canad. J. Bot. 69: 2698. figs. 27-30, 47.
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PERTH; isotype, VPI
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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
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).
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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 of this species.
from protolog: Basidiomes small.
from protolog: 27 - 42 mm wide, brown (6C4-5) to darker brown (6E6) over disc; context firm, white; margin plicate-striate; universal veil as small patches and pointed warts, gray-brown (6C2), denser over disc, scattered at margin, persistent.
from protolog: adnate, with fine decurrent line, subdistant, white, moderately broad; lamellulae in one tier.
from protolog: 25 - 35 × 4 - 12 mm, ground color not described, cylindric, decorated with rows of minute white fibrils, with such rows extending to bulb; bulb white, abrupt, ovoid, (9 - 13 × 10 - 15 mm), marginate to obscurely marginate, sand-covered; context white, firm, solid; partial veil apical, pendent, flaring at free edge, very faintly striate above; universal veil not described.
from protolog: Odor "not easily described." Taste not recorded.
from protolog: up to 200 μm thick, "not gelatinous"; filamentous hyphae 4 - 12 (-18) μm wide, thin-walled, "yellowish in KOH and Melzer's solution."
from protolog: filamentous hyphae 4 - 10 μm wide, thin-walled, hyaline, loosely interwoven; acrophysalides up to 35 μm wide; clamps occasional.
from protolog: divergent; filamentous hyphae 3 - 11 (-15) μm wide, with some segments "swollen."
from protolog: cells short, ovoid to irregular, hyaline, thin-walled, 5 - 11 μm wide.
from protolog: [-/-/1] 9 - 11 × 7 - 8.5 μm, (Q = 1.13 - 1.57; Q' = 1.37), thin-walled, amyloid, subglobose to broadly ellipsoid to ellipsoid; apiculus sublateral [per figure]; contents not recorded; white in deposit.
from protolog: Gregarious. In sandy soil covered by low moss under or near Eucalyptus calophylla.
from protolog: AUSTRALIA: WESTERN AUSTRALIA—Nornalup - Walpole-Nornalup Nat. Pk., Gully Rd., "late June" O. K. Miller E687 (holotype, PERTH; isotype, VPI).
Since Miller compares the present species to A. lignophila, a poorly understood name thought by some to apply to a species similar to the North American A. brunnescens (e.g., Lamoureux 2006). At the time of Miller's writing, such taxa were considered to belong in the Phalloideae. They are presently commonly considered to be near basal to section Validae.
Note: Since clamps are usually considered to be absent in sect. Validae a revision of the original material is needed.—ed.
The editors express their thanks to Dr. Elaine Davison for her assistance with Western Australia geographical and other data relating to Miller's original materials of this taxon.
—R. E. Tulloss
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O. K. Mill.
Spore data for collections provisionally identified as: Amanita brunneistriatula O. K. Mill.
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.
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(which may be valuable for instructional purposes, for example) and may obscure instances in which
a single collection inadvertently contains a mixture of taxa.