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The following material ia derived from (Corner and Bas 1962).
Corner and Bas (1962): 45 - 65 mm wide, fuscous brown, paler toward margin, darker in center, innately streaked, becoming planar, slightly viscid; context white, rather thin; margin not described; universal veil as large patches, 5 - 7.5 mm wide, 1 mm high, pale fuscous brown, with whitish flat tops.
Corner and Bas (1962): free, crowded, white, thin, 3 - 4 mm broad, "50 - 60 primaries"; lamellulae 0 - 1 between each otherwise adjacent pair of lamellae.
Corner and Bas (1962): 60 - 80 × 3 - 4 mm (width measured at apex), white to very pale brownish white, surface breaking up into minute fibrillose patches above partial veil and into short fine fibrils below it, narrowing upward; bulb 7 - 8 mm wide, "subbulbous"; context not described; partial veil pendent, 4 - 5 mm wide, floccose-felted-membranous, white with pale brownish edge, not striate, attached about 20 mm below stipe apex; universal veil lacking from stipe base.
Corner and Bas (1962): inflated cells ?dominant, described as "sphaerocysts."
lamella edge tissue
Corner and Bas (1962): 7 - 7.5 × 6 µm, subglobose to broadly ellipsoid, colorless, monoguttulate; clamps [probably absent—ed.].
Corner and Bas (1962): SINGAPORE - Reservoir Jungle, 10.iv.1941 E. J. H. Corner s.n. (?, watercolor drawing/notes & no material preserved).
Corner and Bas (1962): "This species reminds one of A. pilosella by the small size, the darkly streaked pileus, the brown-rimmed ring, and the small spores. However, it seems easy to distinguish by the large, flat, pale brown, white-topped patches on the pileus, the absence of remnants of the volva at the base of the stem, the much paler colors, and the viscid surface of the pileus."
Corner originally called this entity "Amanita 18."
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Spore data for collections provisionally identified as: Amanita sp-Corner-&-Bas-2
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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a single collection inadvertently contains a mixture of taxa.