| name | Amanita betulae | ||||||||||||||||||||||||||||||||
| author | Neville & Poumarat. 2009. Fungi non Delineati 51-52: 27-34, figs. 4-6, photos. | ||||||||||||||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||||||||||||||
| english name | "Birch Ringless Amanita" | ||||||||||||||||||||||||||||||||
| etymology | betulae, the genus name of Birches in the genitive; hence, "of birch" or "belonging to birch" | ||||||||||||||||||||||||||||||||
| MycoBank nos. | 543038 | ||||||||||||||||||||||||||||||||
| GenBank nos. |
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Showing 1 to 4 of 4 entries | ||||||||||||||||||||||||||||||||
| holotypes | in herb. P. Neville 02.09.19.11a => in herb. S. Poumarat => G; isotype, in herb. P. Neville 02.09.19.11b => in herb. S. Poumarat => G | ||||||||||||||||||||||||||||||||
| 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 derived from the protolog of the present species, Hanss & Moreau (2020 [2017]), a field trip in Norway organized by Dr. Gro Gulden, molecular studies by B. Dima and S. D. Russell, and other original research by R. E. Tulloss. | ||||||||||||||||||||||||||||||||
| pileus | 58 mm wide, brown with pigment expanding to the formerly pallid margin after several hours, rounded concave, very viscid when wet, becoming subshiny upon return to lab; context 6 mm thick, thinning evenly for 90% of lamella length, then membranous to cap margin; margin striate (0.25 - 0.3R), incurved at first, not appendiculate; universal veil off-white to orangish white, as thick plaques of membranous material, smooth with edges curling upward during drying in wrapper, easily removed, becoming grayish or (at least) a bit sordid in age. | ||||||||||||||||||||||||||||||||
| lamellae | free or very narrowly adnate, pale brownish gray in mass due to brown marginal pigmentation, crowded, with color in side view and staining or bruising reaction not recorded, like ?? | ||||||||||||||||||||||||||||||||
| stipe | 72 × 7.5 mm, with pallid ground covered with small brown flecks or fibrils except for last 7-8 mm above join with universal veil giving stem appearance of having "striangulate" basal zone bordered above with a thin wavy line of densely place brown fibrils, slightly browner where handled, narrowing upward, flaring slowly over ca. 5 mm at apex, longitudinally striatulate; context pale brownish with pale orangish tint in base, stuffed with moderately dense longitudinally oriented white fibrillose material, with larval tunnels not observed; exannulate; universal veil as smooth saccate membranous volva, 33 × 23 mm, about 1 mm thick at mid-point between top of volval limb and attachment of limb to stipe, flaring with multiple lobes, with exterior surface whitish, with interior surface palely concolorous with pileus; limbus internus rather high on stem and firmly attached to stem when observed, with impression of marginal striations visible in strongly curved region joining outer surface of limbus internus with inner surface of primary volval limb. | ||||||||||||||||||||||||||||||||
| odor/taste | Odor indistinct. Taste not recorded. | ||||||||||||||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||||||||||||||
| stipe context | from protolog: . | ||||||||||||||||||||||||||||||||
| partial veil | absent. | ||||||||||||||||||||||||||||||||
| lamella edge tissue | sterile. | ||||||||||||||||||||||||||||||||
| basidiospores | Note: not measured and reported correctly in protolog—values of Q commonly < 1.0. Cannot be compared with other taxa. | ||||||||||||||||||||||||||||||||
| ecology |
from protolog: Under
Betula pendula in lawn or under mixed
Betula and Salix.
[Note: Paratype collections were
made in environments in which other genera of
trees were present. This data field will be
updated.—ed.] RET: Norway: In mineral soil and loam with Betula near meadow or in wet Betula forest with herbaceous understory. Sweden: In poor, sandy ground of grassy path near Salix myrsinifolia, S. phylicifolia, S. caprea, S. borealis & Betula pubescens. | ||||||||||||||||||||||||||||||||
| material examined |
from protolog:
FRANCE:
HAUTE-LOIRE—la Chaise-Dieu, 22.ix.2002
P.-A. Moreau s.n. (holotype, in herb. P.
Neville 02.09.19.11a => in herb. S. Poumarat;
isotype, in herb. P. Neville 02.09.19.11b =>
in herb. S. Poumarat => G).
[Note: Paratype collections
remain to be added.—ed.] RET: NORWAY: BUSKERUD—Kongsberg, Lindåskroken, 21.viii.1999 P. Marstad, H. Myrhe, T. Torjesen s.n. [Tulloss 8-21-99-A] (O 63282; RET 308-7, nrITS & nrLSU seq'd.), P. Marstad, H. Myhre s.n. [Tulloss 8-21-99-D] (O 63283; RET 278-4, nrITS-LSU seq'd.). SWEDEN: LAPLAND—Vilhelmina, Heligfjäll, Stor-Ängesbäcken, 23.viii.2009 Irene Andersson s.n. [mushroomobserver #27958] (RET 454-9, nrITS-LSU seq'd.). | ||||||||||||||||||||||||||||||||
| discussion | This taxon was previously called "A. sp-NOR01" on this site. | ||||||||||||||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||||||||||||||
| editors | RET | ||||||||||||||||||||||||||||||||
Information to support the viewer in reading the content of "technical" tabs can be found here.
| name | Amanita betulae |
| name status | nomen acceptum |
| author | Neville & Poumarat |
| english name | "Birch Ringless Amanita" |
| images |
 1. Amanita betulae, Stor-Ängesbäcken, Heligfjäll, Vilhelmina, Lapland, Sweden. (RET 454-9)   2. Amanita betulae, la Chaise Dieu, Haute Loire, France. (type) |
| photo |
Irene Andersson - (1) Stor-Ängesbäcken, Heligfjäll,
Vilhelmina, Lapland, Sweden.
(RET 454-9) [Note: original
unedited images can be found
here—ed.] Dr. Pierre-Arthur Moreau - (2) la Chaise Dieu, Haute Loire, France. (type) [Note: reproduced by permission of Dr. Moreau.—ed.] |
Spore data sets and their composite
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