Difference between revisions of "Amanita altipes"
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Latest revision as of 21:36, 8 October 2019
| Amanita altipes | |
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| Scientific classification | |
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| Species: | A. altipes
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| Binomial name | |
| Amanita altipes Zhu L.Yang, M.Weiss & Oberw. (2004)
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| Amanita altipes | |
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 | gills on hymenium |
 | cap is umbonate |
 | hymenium is free |
 | stipe has a ring and volva |
 | spore print is white |
 | ecology is mycorrhizal |
Amanita altipes, also called the yellow long-stem amanita, is a species of agaric fungus found on soil in coniferous (Abies, Picea) and broadleaved (Betula, Quercus, Salix) woodland in southwestern China up to an altitude of 4,000 metres (13,000 ft).[1] The specific epithet altipes means "referring to the long stipe", and it suits the species as it has a longer stipe compared to its relatives.[2]
Description
This is a small to medium-sized agaric with a distinctively yellowish overall coloration. The cap has a diameter of up to 9 cm (3.5 in) and is yellow, often brownish towards the centre. The appearance of the cap may be convex to plano-convex. The volva is present as felty, floccose patches, 2–5 mm wide and up to 1 mm thick. Unlike many of its relatives (for example, the Amanita pantherina), the remnants of the universal veil do not usually persist on the cap, being easily washed away by rain.[3] The yellowish stipe is relatively long (up to 16 cm), and usually tapers upwards. There is a large, persistent ring. The gills are free, crowded, and white to cream-colored to yellowish. The short gills (lamellulae) are truncate, numerous, and are evenly distributed. The spores measure 8.0–10.0 by 7.5–9.5 µm and are spherical (or nearly so) and inamyloid. There are no clamps present at the bases of basidia. The flesh is white in color and inedible.
Habitat and distribution
This species is widespread in southwestern China, mostly in Yunnan.[4] It has also been reported that it is found in eastern Himalayas and adjacent regions.[2] It grows on soil in coniferous (Abies, Picea) and broadleaved (Betula, Quercus, Salix) woodland in southwestern China up to an altitude of 4,000 metres (13,000 ft).
See also
References
- ↑ OVGuide. "Amanita altipes video". All Media Guide (AMG). Archived from the original on 2011-08-07. Retrieved 2011-03-19.
- ↑ 2.0 2.1 Yang ZL, Weib M, Oberwinkler F (2004). "New species of Amanita from the eastern Himalaya and adjacent regions" (PDF). Mycologia. 96 (3): 636–46. doi:10.2307/3762180. PMID 21148883.
- ↑ Tulloss RE. "Amanita altipes Zhu L. Yang, M. Weiss & Oberw. "Yellow Long-Stem Amanita"".
- ↑ Zhang L.; Yang J; Yang Z. "Molecular phylogeny of eastern Asian species of Amanita (Agaricales, Basidiomycota): taxonomic and biogeographic implications". Fungal Diversity (PDF) (17): 219–38.
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