| name |
Amanita austropulchella f. mcalpiniana |
| author |
(Cleland & Cheel) D. A. Reid. 1980. Austral. J. Bot., Suppl. Ser. 8: 58.
|
| name status |
nomen acceptum |
| english name |
"McAlpin's Yellow Beauty Amanita" |
| synonyms |
≡ Amanitopsis McAlpiniana Cleland & Cheel. 1914. Agric. Gaz. New South Wales 25: 1049.
≡ Amanitopsis pulchella f. McAlpiniana (Cleland & Cheel) E.-J. Gilbert. 1940 . Iconogr. Mycol. (Milan) 27, suppl. (1): 75, tab. 1 (fig. 3).
≡ Amanita pulchella f. McAlpiniana (Cleland & Cheel) E.-J. Gilbert. 1941. Iconogr. Mycol. (Milan) 27, suppl. (2): 204, pl. 1 (fig. 2).
≡Amanita xanthocephala f. mcalpiniana (Cleland & Cheel) D. A. Reid. 1980. Austral. J. Bot., Suppl. Ser. 8: 66.
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.
|
| etymology |
Latinized name (McAlpinius) - nominative + -ana "in honor of"; hence, "in honor of McAlpine" |
| MycoBank nos. |
537103, 537100, 277871, 537101, 537102, 537099 |
| GenBank nos. |
Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
These pages will eventually be made live, so try again later.
|
| holotypes |
The type of Amanitopsis pulchella f. Mcalpiniana was cited by Gilbert (1940: Tab. 1 (fig. 3) [text]. This indicates that Gilbert had at least part of the type when the spore drawings of the cited figure were being prepared. Grgurinovic (1997) does not mention the type being in AD in her revision of AD collections of A. xanthocephala. Reid (1980) does not identify the location of a type. There is a possibility that the type was lost with Gilbert’s herbarium. |
| 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 the protolog of the present taxon, (Gilbert 1940 & 1941), and Reid (1980). |
| pileus |
Gilbert (1940 & 1941) type study: 25 - 50 mm wide, yellow, becoming paler yellow, convex then broadly convex, viscous; context not described; margin striate; universal veil as farinose warts, concolorous, detersile, easily lost.
RET (Dodd coll.): 25 - 102± mm, bright yellow (most saturated over disc), fading on exposure, viscid when moist; margin striate (0.25-0.3R), nonappendiculate; context whitish; universal veil as densely set warts, sometimes confluent as submembranous patches, irregular, of varying size and form, yellow at first, soon becoming pallid or white, detersile. |
| lamellae |
Gilbert (1940 & 1941) type study: adnate to subadnate, close, cream; lamellulae not described.
RET (Dodd coll.): adnate to adnexed, close, cream to pale cream; lamellulae truncate or excavate truncate, common, unevenly distributed, of diverse lengths. |
| stipe |
Gilbert (1940 & 1941) type study: dimensions not recorded; bulb present, dimentions not recorded, whitish, farinose, striate; context hollow, somtimes solid; exannulate; universal veil not described.
RET (Dodd coll.): 156± × 17.5 mm, yellow in region near apex, white below; bulb 27± × 35± mm, bearing several distinct white rhizoids; context stuffed, concolorous with nearest surface; exannulate; universal veil in one or two rings encircling lower stipe and/or upper bulb, with at least one ring usually complete, pallid in photographs. |
| odor/taste |
not recorded. |
macrochemical
tests |
none recorded. |
| lamella edge tissue |
sterile. |
| basidiospores |
Gilbert (1940): [3/1/1] 8.7 - 10.0 × 8.2 - 9.0 μm, (L = 9.4± μm; W = 8.7± μm; Q = 1.06 - 1.11; Q > 1.08), inamyloid; apiculus sublateral; contents guttulate.
[Note: The only information on spores of the type collection comprises scale drawings of five spores (Gilbert 1940: tab. I, fig. 3); We present the data from spores that are most likely to have been drawn in lateral view. The largest spore is the most likely to have been so drawn (with Q=1.11).—ed.]
RET: [22/1/1] (7.7-) 8.0 - 9.8 (-12.0) × (7.0-) 7.2 - 8.5 (-11.6) μm, (L = 8.6 μm; W = 7.7 μm; Q = 1.06 - 1.16 (-1.20); Q = 1.11), hyaline, colorless, thin-walled, smooth, inamyloid, subglobose to broadly ellipsoid, at least somewhat adaxially flattened; apiculus sublateral cylindric to truncate conic, sometimes proportionately rather large and prominent; contents dominantly monoguttulate with additional small granules; ?? in deposit. |
| ecology |
In small groups. In leaf litter of second growth semi-rainforest dominated by eucalypts including Eucalyptus pilularis ("Blackbutt") and Corymbia (=Eucalyptus) maculata ("Spotted Gum"). |
| material examined |
AUSTRALIA: NEW SOUTH WALES—LGA Unkn., Yarrahapinni St. For., N of Grassy Head [ca. 30.7833° S/ 153.0° E], 29.iii.2014 Ian Dodd s.n. [mushroomobserver #162394] (RET 594-7). |
| discussion |
Cleland and Cheel originally treated this entity as a distinct species. Gilbert (1941) judged that this taxon might be only a color variant of A. xanthocephala in which red (sic) pigment failed to develop. This opinion has been followed by Reid (1980) and Grgurinovic (1997). Reid continued to propagate the epithet and keep it recombined with the names he found necessary to make with regard to the type forms of A. xanthocephala and A. austropulchella.
RET recently received material from Ian Dodd (RET ??) that matches the original description of A. mcalpininiana. This taxon has been treated as a form of A. austropulchella or A. xanthocephala since 1940. The change in rank (to form) was proposed by Gilbert in his “Amanitaceae” (published 1940-41).
It is argued on this sited (here) that the name “xanthocephala” may be presently applied to two different species (possibly starting with Reid’s monograph on Australian amanitas in 1980). Reid’s type study of A. xanthocephala describes broadly ellipsoid to ellipsoid spores while Reid’s type study of A. austropulchella describes spores that are larger and with generally lower Q (subglobose to broadly ellipsoid).
Amanita xanthocephala was originally described from Western Australia and A. austropulchella was originally described from Victoria.
Reid’s non-type material studied conforms with austropulchella in terms of spore size-shape. Information provided to RET by Heino Lepp (from eastern Australian material) also conforms with the data from the type study of austropulchella. Hence, RET is inclined to think that austropulchella and xanthocephala could be distinct taxa.
With regard to A. mcalpiniana: The type is probably lost with the rest of Gilbert’s herbarium (see above). It appears best to operate from the original description of the present taxon and the spore data obtained from the type by Gilbert (five scale drawings of spores in the first volume of his “Amanitaceae”—see above).
This information conflicts in now ay with the data available from examination of the recent Dodd collection from New South Wales.
RET is very interested in material from anywhere in Australia that may represent xanthocephala, austropulchella, or mcalpiniana. |
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite