Asteridiella

Asteridiella
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Sordariomycetes
Order:	Meliolales
Family:	Meliolaceae
Genus:	Asteridiella ; McAlpine
Type species
	Asteridiella solani ; McAlpine

Last updated September 28, 2023

Asteridiella is a genus of fungi in the family Meliolaceae.^[1]^[2] The genus was first described by Daniel McAlpine in 1897, who differentiated it from various other fungal genera:

" Asterula , Sacc, has continuous hyaline spores (Hyalosporae), Asteronia , Sacc, has continuous brown spores (Phaeosporae). Asterina , Lev., has two-celled hyaline spores (Hyalodidymae). Asterella, Sacc, has two-celled brown spores (Phaeodidymae). Asteridium , Sacc, has multi-septate hyaline spores (Hyalophragmiae). And in the case of the specimen on Solanum viride with multi-septate brown spores, I have ventured to use Asteridiella (Phaeophragmiae)".^[2]

Species and subspecies include some 738 taxa:

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Asteridiella solani is a species of fungus in the family Meliolaceae, first described by Daniel McAlpine in 1897, who gave the following description:

On upper and under surfaces of leaves, leaf-stalks and branches; forming densely crowded, minute, black, generally orbicular, often confluent, easily detachable, brittle crusts, with surface of leaf beneath of a pale brown or pale reddish colour. Mycelium composed of an interosculating network of delicate, colourless, septate, luxuriantly branched hyphae, about 3 μ broad, and attached to matrix, gradually passing into the stouter coloured hyphae above it. Coloured hyphae dark brown, rigid, thick-walled, closely interwoven, septate, branched, 8-9½ μ broad, ultimate branchlets generally 1-septate, knobbed and paler in colour. Perithecia seated on crust in clusters, depressedly globose, black, rough with warty spines, 130-330 μ, the latter being the average full-grown size. Asci oblong to cylindrical, 4-spored usually, 38-64 X 13-26 μ (immature). Sporidia brown, oblong, 4-septate, slightly constricted at septa, rounded at both ends, 36-44 x 14-15 μ. Pycnidia globose, golden-brown, opening by circular mouth and wall composed of small polygonal cells 100-140 μ, along with perithecia. Sporules minute, subglobose or oval, hyaline or rarely brownish, 5½ x 3 μ or 4 μ diameter borne, on delicate hyaline, septate, branched hyphae.
On Solanum viride, R.Br.; Tintenbar, N.S.W. (Maiden).
The crusted mycelium is readily removed, and is steel-grey on the attached surface.
The asci when ripe seem to burst within the perithecium, hence the difficulty of getting a mature ascus. The sporidia, which are at first colourless, then greenish and finally brown, often germinate even within the perithecium either from one or more segments. They are stained greenish-yellow by potassium-iodide-iodine, and the other contents of the perithecia are similarly stained.

Sarcostroma is a genus of fungi in the family Sporocadaceae. Most species of this genus are saprobes, endophytes or pathogens on leaves.

Ostropomyces is a genus of fungi in the family Stictidaceae. It has two species, both of which are found in tropical forests in northern Thailand, where they grow as saprotrophs on bark.

References

↑ "Index Fungorum - Names Record: Asteridiella". www.indexfungorum.org. Retrieved 19 January 2022.
1 2 McAlpine, D. (1897). "New South Wales Fungi". Proceedings of the Linnean Society of New South Wales. 22 (1): 36–47 [38].

External links

Index Fungorum

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[if-1] "Index Fungorum - Names Record: Asteridiella". www.indexfungorum.org. Retrieved 19 January 2022.

[mcalpine-2] 1 2 McAlpine, D. (1897). "New South Wales Fungi". Proceedings of the Linnean Society of New South Wales. 22 (1): 36–47 [38].

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