| name | Amanita flavosorora | ||||||||
| author | Tulloss | ||||||||
| name status | nomen provisorum | ||||||||
| english name | "Yellow Sister Ringless Amanita" | ||||||||
| etymology | flavus, yellow + sorora, sister; continuing the anthropomorphic conceit that taxa with similarities to those in series Ceciliae are "sisters" to those taxa. | ||||||||
| GenBank nos. |
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| intro |
The following text may make multiple use of each data field. The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material. The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate. Olive text indicates a specimen that has not been thoroughly examined (for example, for microscopic details) and marks other places in the text where data is missing or uncertain. The following material is based on original research of R. E. Tulloss. | ||||||||
| pileus | 72 mm wide, 5C5 over disc with umbo slightly darker, at first with irregular narrow zone of yellow just prior to inner end of striations, with this region becoming light tan-cream on maturing, between striations light tannish-cream, at maturity concave with low umbo, tacky when moist, dull when dry; context white, unchanging when cut or bruised, 6 mm thick over stipe, thinning evenly of about half distance to margin, thence a membrane; margin non-appendiculate, striate (0.5-0.6R); universal veil as warts and small patches, irregularly distributed, with texture verruculose, distinctly yellowish gray at maturity, apparently graying with age; submembranous to friable, detersile. | ||||||||
| lamellae | narrowly adnate with no or faint decurrent line on stipe apical region, close, white in side view, white to off-white in mass, unchanging when cut or bruised, with faint gray edge; lamellulae subtruncate to rounded truncate, of diverse lengths, unevenly distributed, rather common. | ||||||||
| stipe | 123 × 6.5 - 7 mm, with 45-60% inserted in substrate, off white, slightly darkening from handling, narrowing upward, with apex barely flaring at maturity; context off-white, with some staining from soil in lower half, solid above, becoming hollow near base, with material in upper central cylinder being longitudinally fibrous and very dense, with central cylinder 3.5 mm wide; exannulate; universal veil probably originally saccate, with few small scattered patches remaining in age, small, grayish without yellow tint, volva either disappearing from extreme base of stipe or lost in collecting. | ||||||||
| odor/taste | Odorless; no taste recorded. | ||||||||
| macrochemical tests |
none recorded. | ||||||||
| lamella edge tissue | sterile; t.b.d. | ||||||||
| ecology | In dark loam of mixed woods, with some old growth. | ||||||||
| material examined | U.S.A.: NEW YORK—Unkn. Co. - ca. border of Livingston and Allegany Cos., Rattlesnake Hill Wildlife Mgmt. Area [45.5166° /N 77.8483° W, 557 m], 27.vii.2018 N. Dingman s.n. [RET 7-27-18-A] (RET 838-5). | ||||||||
| discussion |
This species resembles those of
Amanita series
Ceciliae—from what is known at
present. Within
that series, there are few others with a colored
volva. Among the latter are
A. colombiana
and A.
aureosolea. The cryptonom. temp. "sp-N69" was briefly assigned to this taxon. | ||||||||
| citations | —R. E. Tulloss | ||||||||
| editors | RET | ||||||||
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