Austroboletus rarus

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Austroboletus rarus
Austroboletus rarus 323387.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae
Genus: Austroboletus
Species:
A. rarus
Binomial name
Austroboletus rarus
(Corner) E.Horak (1980)
Synonyms

Boletus rarusCorner (1972)

Austroboletus rarus is a species of bolete fungus in the family Boletaceae. Found in Singapore and Australia, it was described as new to science by E.J.H. Corner in 1972, who called it Boletus rarus. Corner found the type collection growing on a forest floor in Bukit Timah in December 1940. He suggested that it might be a variety of Boletus rubiicolor (now Austroboletus rubiicolor). [1] Egon Horak transferred it to the genus Austroboletus in 1980. [2]

Contents

Description

The convex cap is dry and measures up to 1.3 cm (0.5 in). The surface is somewhat tomentose, but especially so near the cap center. The pale pink pores on the underside of the cap angular and about 0.5 mm in diameter, while the tubes are up to 2.5 mm (0.1 in). The slender stipe measures 4–5 cm (1.6–2.0 in) long and 2–3 mm thick. The flesh is thick and white, measuring 2–2.5 mm thick. There is white mycelium at the base of the stipe. Its spores measure 16–21 by 8–10  μm. [1]

The Japanese species Porphyrellus fusisporus is similar in appearance but can be distinguished by its shorter, warted spores that measure 13.5–18.5 μm. [1]

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Tylopilus albofarinaceus is a bolete fungus in the family Boletaceae found in China. It was first described as new to science in 1948 by Wei-Fan Chiu as a species of Boletus; F.L. Tai transferred it to the genus Tylopilus in 1979. The fruit body has a convex, white cap that is up to 5 cm (2 in) in diameter. The tubes on the cap underside are 3 mm long, while the pores are about 0.7–1 mm wide. The flesh in the stipe is white and does not change color with injury. It has ellipsoid spores measuring 11–14 by 5–7 μm. The type collection was made in Kunming in August 1938.

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<i>Fistulinella nivea</i> Species of fungus

Fistulinella nivea is a species of bolete fungus in the family Boletaceae found in New Zealand. First described by mycologist Greta Stevenson in 1962 as a species of Tylopilus, it was transferred to the genus Fistulinella by Rolf Singer. Stevenson originally discovered the bolete in 1955 at Tōtaranui, where it was growing under Nothofagus. Its fruitbody has a white cap with a diameter of up to 3 cm (1.2 in) atop a stipe measuring up 7 cm (2.8 in) long and 1–1.5 cm (0.4–0.6 in) thick. The pores on the cap underside are up to 1.5 mm in diameter. The pore surface is initially white before changing to pale pink. Spores are ellipsoid, hyaline (translucent), and measure 17–18 by 6–7 μm.

References

  1. 1 2 3 Corner (1972). Boletus in Malaysia. Singapore: The Botanic Gardens. p. 87.
  2. Horak E. (1980). "Supplementary remarks to Austroboletus (Corner) Wolfe (Boletaceae)" (PDF). Sydowia. 33: 71–87.