Mycena nargan
| Mycena nargan | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Mycenaceae |
| Genus: | Mycena |
| Species: | M. nargan
|
| Binomial name | |
| Mycena nargan Grgur. (1995)
| |
Mycena nargan | |
|---|---|
 | Gills on hymenium |
 | Cap is conical |
 | Hymenium is adnate |
 | Stipe is bare |
 | Spore print is white to cream |
 | Ecology is saprotrophic |
 | Edibility is unknown |
Mycena nargan, commonly known as the Nargan's bonnet, is a species of
of the mushroom is unknown.Taxonomy, naming, and classification
The species was first discovered in 1992 in
specific epithet.[2] It is commonly known as "Nargan's bonnet", but has also been referred to as the "spotted pixie cap".[3]
With respect to infrageneric
subsection Ciliatae, stirps Alcalina (roughly equivalent to section Fragilipedes of Maas Geesteranus) because of the amyloid spores, smooth, elongated cheilocystidia, dull-coloured pigment, and stem without either latex or a slimy sheath. Grgurinovic erected the new section Nargan to accommodate M. nargan, because its scales, lack of coarse fibrils at the base of the stem, and lack of pruinose coating meant it was not a good fit for section Fragilipedes.[1]
Description
The
of the mushroom has not been reported.Microscopic characteristics
The
cystidia. These thin-walled cheilocystidia range in shape from swollen in the middle with a beak-like point, to spindle-shaped (fusiform) to club-shaped. They are smooth, hyaline, and inamyloid, with dimensions of 20.8–38.4 by 4.8–10.4 μm. They have a clamp connection at base. Pleurocystidia (cystidia on the gill face) are not present in this species. The gill tissue is made of smooth, thin-walled cylindrical to egg-shaped cells, up to 30.4 μm in diameter. The cells are dextrinoid (producing a black to blue-black positive reaction with Melzer's reagent), and reddish brown. The surface of the cap (the pileipellis) is made of a layer of bent-over filamentous hyphae measuring 1.8–4.8 μm. These loosely arranged hyphae are slightly gelatinised, smooth, thin-walled, hyaline, inamyloid, and have clamp connections. The tissue layer directly under the pileipellis (the hypodermium) has cells containing brown pigment. The cap tissue consists of smooth, thin-walled, cylindrical to broadly cylindrical or ovoid cells, up to 37.0 μm in diameter, with clamp connections. These cells are dextrinoid and reddish orange-brown in colour. The surface of the stem is made of filamentous hyphae, 2.2–4.0 μm in diameter, either smooth or with sparse to moderately dense short, rod-like to cylindrical projections. The cells are thin-walled to very slightly thick-walled, hyaline, inamyloid, and have clamp connections. Caulocystidia (cystidia on the cap surface) are not present. The stem tissue consists of short, cylindrical cells, up to 28.0 μm in diameter that are smooth, thin-walled, and with or without brown pigment in the cytoplasm. The cells contain clamp connections and are reddish orange-brown.[1]
Similar species
Mycena nargan has a very distinct appearance, and is unlikely to be mistaken for other Mycenas. However, one noted unintentional misidentification occurred when the M. nargan on the cover photograph of Bruce A. Fuhrer's 2005 book A Field Guide to Australian Fungi was labelled as Mycena nivalis, a species with a white cap.[6]
Habitat and distribution
A common mushroom, Mycena nargan is found growing singly or in clusters on the underside of rotting wood in wet and shaded areas, and is especially partial to clearfelling, burning, and sowing two to three years previously.[9]
References
- ^ .
- ^ ISBN 0-646-44674-6.
- ^ a b Bougher NL, Weaver JR (2007). Perth Urban Bushland Fungi Field Book (PDF) (3rd ed.). Perth Urban Bushland Fungi.
- ISBN 3-87429-254-1.
- ISBN 1-876473-51-7.
- ^ "Book reviews: A plethora of books on fungi?" (PDF). Tasmanian Naturalist. 127: 91–94. 2005. Archived from the original (PDF) on 2011-02-17. Retrieved 2010-12-17.
- .
- ^ May T. (April 2010). "The how and why of new target species" (PDF). Fungimap Bulletin. 1. Royal Botanic gardens Melbourne. Archived from the original (PDF) on 2011-03-03. Retrieved 2010-12-17.
- ^ Gates GM, Ratkowsky DA, Grove SJ (2005). "A comparison of macrofungi in young silvicultural regeneration and mature forest at the Warra LTER Site in the southern forests of Tasmania" (PDF). Tasforests. 16: 127–52.
External links