| name | Amanita variabilis |
| name status | nomen acceptum |
| author | E.-J. Gilbert & Cleland |
| english name | "Variable Amanita" |
| intro |
Following description based on Reid (1980). |
| cap | The cap of Amanita variabilis is 37 mm wide, convex, and white; its flesh is white except near the gills where it may be brown and almost translucent. |
| gills |
The gills are adnexed, creamy-white, and close. |
| stem |
The stem is 37 × 9 mm, finally hollow, 20 mm wide bulb, short, sometimes fibrillose, with no volval remnants. A marked skirt-like ring is present. The flesh is white with a translucent brown pith in the center. The white of the bulb turns slightly brownish. |
| odor/taste |
The odor is "rather strong." |
| spores |
The spores measure 6.5 - 9.0 × 4.8 - 6.0 µm and are broadly ellipsoid to ovate and amyloid. |
| discussion |
This species was originally described from the state of South Australia. No ecological information was provided. Amanita variabilis is known only from the type collection from the National Park in South Australia. Reid observes that Gilbert's comparison of this species to Amanita brunnescens G. F. Atk. is not appropriate. In my opinion, the water-soaked appearance of the stipe's "pith" and the watery marks between the cap and gills also in the original collector's notes indicate that the fruiting body had been soaked by rain. These characteristics are not uncommon with amanitas in those circumstances.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita variabilis | ||||||||||||||||||||
| author | E.-J. Gilbert & Cleland. 1941. Iconogr. Mycol. (Milan) 27, suppl.: 367. | ||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||
| english name | "Variable Amanita" | ||||||||||||||||||||
| synonyms |
≡Amplariella variabilis "(E.-J. Gilbert & Cleland) nob." nom. nud. 1940. Iconogr. Mycol. (Milan) 27, suppl.: 79, tab. 48 (fig. 1). [The name was not published until 1941.]
non Amanita variabilis S. Curreli nom. illeg. (≡Amanita heterochroma) The editors of this site owe a great debt to Dr. Cornelis Bas whose famous cigar box files of Amanita nomenclatural information gathered over three or more decades were made available to RET for computerization and make up the lion's share of the nomenclatural information presented on this site. | ||||||||||||||||||||
| MycoBank nos. | 284082, 284162 | ||||||||||||||||||||
| GenBank nos. |
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| holotypes | ADW => AD [Confirmed per Grgurinovic (1997: 410, 412).] | ||||||||||||||||||||
| revisions | Reid. 1980. Austral. J. Bot., Suppl. Ser. 8: 60, fig. 42. | ||||||||||||||||||||
| 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 from the protolog of the present species, from (Reid 1980), and from (Grgurinovic 1997). As of the last cited source: The species was still known only from the type collection, which comprises a single specimen. | ||||||||||||||||||||
| pileus | from protolog: 37 mm wide, white, convex, viscid; context white, with brownish translucent zone adjacent to lamellae; margin not described; universal veil not described. | ||||||||||||||||||||
| lamellae | from protolog: adnexed, crowded, creamy white; lamellulae not described. | ||||||||||||||||||||
| stipe | from protolog adjusted to original collector's notes: 37 × 9 mm, slightly narrowing downward, somewhat fibrillose; bulb ca. 20 mm wide; contents white, stuffed then hollow in part, with central cylinder containing pale brownish spongy translucent material, in bulb white becoming slightly brownish; partial veil white, membranous, superior, well-developed, persistent, pendulous; universal veil entirely absent. | ||||||||||||||||||||
| odor/taste | from protolog: Odor rather strong. Taste not recorded. | ||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||
| pileipellis |
not described in protolog. from revision of type by Grgurinovic (1997): "not seen." | ||||||||||||||||||||
| pileus context | not described in protolog. | ||||||||||||||||||||
| lamella trama | not described in protolog. | ||||||||||||||||||||
| subhymenium | not described in protolog. | ||||||||||||||||||||
| basidia |
not described in protolog. from revision of type by Grgurinovic (1997): [3/1/1] 43 - 54 × 11.6 - 14.8 μm, 4-sterigmate, with sterigmata up to 4.4 μm long; clamps not seen. | ||||||||||||||||||||
| universal veil | not described in protolog. | ||||||||||||||||||||
| stipe context | not described in protolog. | ||||||||||||||||||||
| partial veil | not described in protolog. | ||||||||||||||||||||
| lamella edge tissue |
not described in protolog. from revision of type by Grgurinovic (1997): [16/1/1] inflated cells terminal (per figure), 14.0 - 58 × 9.2 - 16.0, clavate to obpyriform. [Note: This tissue described and illustrated by Grgurinovic as "veil fragments," appear to be terminal cells of lamella edge tissue.—ed.] | ||||||||||||||||||||
| basidiospores |
from measurement of drawn spores in (Gilbert 1940): [3/1/1] (7.4-) 8.0 - 8.8 × 6.0 - 6.5 (-6.8) μm, (L = 8.4 μm; W = 6.3 μm; Q = 1.33 - 1.35; Q = 1.34), smooth, amyloid, ellipsoid; apiculus sublateral (per figures); contents not described; color in deposit not recorded. from revision of type by Reid (1980): [-/1/1] 6.5 - 9.0 × 4.8 - 6.0 μm, (est. Q = 1.35 - 1.50), amyloid, ellipsoid. from revision of type by Grgurinovic (1997): [43/1/1] 7.3 - 9.6 × 4.8 - 7.8 μm, (L = 8.3 μm; W = 6.5 μm; Q = 1.30), amyloid, broadly ellipsoid to ellipsoid. [Note: We have not estimated a range for Q based on the (Grgurinovic 1997) spore data for this species in order to prevent automatic generation of a sporograph that we believe would be misleading. We evaluated the Amanita spore length and width ranges from (Grgurinovic 1997) in comparison to comparable data published by other authors and often based on revision of the same specimens. This experiment involved a total of 19 descriptions of a total of 13 species from the work of 3 authors. In a range of the form "x - y" of spore length (width) from (Grgurinovic 1997) compared to a range of the form (a-) b - c (-d) of spore length (width) in the other works, the value of "y" was compared to the value of "c" as a ratio. In the case of spore length ranges, on average (per author), the ratio y/c ranged from 1.06 - 1.10 (possibly due to the non-segregation of a "d" value in the ranges of concern). In the case of spore width ranges, on average (per author), the ratio ranged from 1.14 - 1.23 (indicating the probability of compounding causes at play—possibly, the absence of the "d" value in the ranges of concern and failure to restrict spore measurement to spores strictly presenting in lateral view). When sporographs were attempted from the Grgurinovic data, the results were not useful.—ed.] | ||||||||||||||||||||
| ecology | not described in protolog. | ||||||||||||||||||||
| material examined | from protolog (per Reid (1980), and Grgurinovic (1997)): AUSTRALIA: SOUTH AUSTRALIA—Belair Nat. Pk., 21.vii.1923 J. B. Cleland s.n. (holotype, ADW 9266 => AD 3136). | ||||||||||||||||||||
| discussion | In the protolog, the authors state that the species is based on a single collection. A data of collection is given (see above). This is the only means by which the implicit holotype can be identified. Reid found this collection in ADW along with the collector's field notes. In these notes, the browning reaction is not described as dramatically as in Gilbert's interpretation in the protog—Gilbert compared the reaction to that in A brunnescens. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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