Melanoleuca
| Melanoleuca | |
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| Melanoleuca cognata | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | incertae sedis |
| Genus: |
Melanoleuca Pat. (1897) |
| Type species | |
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Melanoleuca melaleuca (Persoon) Murrill (1911) |
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| Synonyms | |
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| Melanoleuca | |
|---|---|
| Mycological characteristics | |
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gills on hymenium |
 
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cap is convex or depressed |
 
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hymenium is adnate or adnexed |
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stipe is bare |
 
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spore print is white to cream |
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ecology is saprotrophic |
 
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edibility: edible or unknown |
cap is convex
hymenium is adnate
spore print is white
edibility: edible
Melanoleuca is a poorly known genus of saprotrophic mushrooms traditionally classified in the family Tricholomataceae. Most are small to medium sized, white, brown, ocher or gray with a cylindrical to subcylindrical stipe and white to pale yellowish gills. The basidiospores are ellipsoid and ornamented with amyloid warts.Melanoleuca is considered a difficult group to study due to their macroscopic similarities among species and the need of a thorough microscopic analysis to separate species.DNA studies have determined that this genus is closely related to Amanita and Pluteus and that it does not belong to the family Tricholomataceae.
The name of the genus is derived from the Ancient Greek melano- meaning "black", and leukos meaning "white".
The fruit bodies of Melanoleuca are small to medium size (pileus 10–120 mm in diameter). The pileus is convex becoming depressed at the center, it is usually dry and white, brown, ocher, or grey. The gills are adnexed, sinuate, adnate, or subdecurrent, white to yellowish. The stipe is central, cylindrical or slightly swollen at the base, dry and longitudinally striate. Development gymnocarpic and stipitocarpic. Odor and taste usually indistinctive, mild, fungoid, sweet, or rancid. The spore print is white to pale yellowish.
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