| 词条 | Clitocybe albirhiza |
| 释义 |
| image = Clitocybe albirhiza 149099.jpg | image_width = 234px | regnum = Fungi | divisio = Basidiomycota | classis = Agaricomycetes | ordo = Agaricales | familia = Tricholomataceae | genus = Clitocybe | species = C. albirhiza | binomial = Clitocybe albirhiza | binomial_authority = H.E.Bigelow & A.H.Sm. (1963) }} Clitocybe albirhiza is a species of agaric fungus in the family Tricholomataceae. It is found in high-elevation locations in the western United States. TaxonomyAmerican mycologists Howard E. Bigelow and Alexander H. Smith first described the species officially in 1963, from specimens collected in June, 1954, near Payette Lake, Idaho. DescriptionThe cap is initially convex before flattening and finally becoming funnel-shaped. Its color depends on its state of hydration: when dry, it is buff; when wet, it is cinnamon-buff to clay color. The gills have an adnate to decurrent attachment to the stipe and are closely spaced, sometimes with "veins" connected between them. Gills are roughly the same color as the cap, or paler. The stipe measures {{convert|3|–|8|cm|in|abbr=on}} long by {{convert|0.5|–|2|cm|in|1|abbr=on}} wide, and is either equal in width throughout, or tapers on either end. Initially stuffed with a cottony mycelium when young, it hollows in maturity. Colored similar to the cap, the stipe surface ranges from smooth to canescent (covered with a whitish-grey bloom) when wet, to fibrillose-striate when dry. The stipe base features a dense mass of whitish rhizomorphs embedded with needles and other forest debris. The flesh is mostly thin except for the disc (a circular region in the center of the cap). It has a slight to "disagreeable" odor and a "disagreeable and bitter" taste. The edibility of the mushroom is unknown.[3] The spore print is white. spores are smooth and elliptical, with dimensions of 4.5–6 by 2.5–3.5 µm. The basidia (spore-bearing cells) are typically two- or four-spored (rarely, one-spored) and measure 20–30 by 3.5–5 µm. The hymenium lacks cystidia. Clamp connections are present in the hyphae. Habitat and distributionFruit bodies of Clitocybe albirhiza grow scattered, in groups, or in clusters under spruce, or, occasionally, larch and pine. Found in the US states of Idaho, Washington,[6] and Wyoming,[7] it is abundant in some high-elevation {{convert|5000|–|10000|ft|m|abbr=on}} locations in the Rocky Mountains. It is referred to as a "snowbank mushroom" because fruit bodies typically appear around the edges of melting snowbanks.[3] Fruitings occur most frequently in June and early July, about the same time as snowmelt at the elevations in which the species occurs. In the Cascade Mountains of Washington, C. albirhiza is one of the most common fungi growing on non-serpentine soil.[6] References1. ^1 2 {{cite book |vauthors=Davis RM, Sommer R, Menge JA |title=Field Guide to Mushrooms of Western North America |year=2012 |publisher=University of California Press |isbn=978-0-520-95360-4 |pages=145–146}} [1][2][3]2. ^1 {{cite journal |vauthors=Gabel A, Ebbert E, Lovett K |title=Macrofungi collected from the Black Hills of South Dakota and Bear Lodge Mountains of Wyoming |journal=American Midland Naturalist |year=2004 |volume=152 |issue=1 |pages=43–62 |jstor=3566643 |doi=10.1674/0003-0031(2004)152[0043:mcftbh]2.0.co;2}} 3. ^1 2 {{cite journal |vauthors=Maas JL, Stuntz DE |title=Mycoecology on serpentine soil |journal=Mycologia |year=1969 |volume=61 |issue=6 |pages=1106–1116 |jstor=3757496 |url= |doi=10.2307/3757496}} }} External links
4 : Clitocybe|Fungi described in 1963|Fungi of the United States|Snowbank fungi |
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