name | Amanita labordei |
name status | insufficiently known |
author | Bouriquet |
english name | "Laborde's Lepidella" |
images | |
intro |
The following is largely derived from the original description of A. labordei (1942-43?). |
cap |
The cap of A. labordei is yellow (most intense of the center, less so at the margin, and often greater than 90 mm wide; it is subglobose at first, then convex, eventually expanding to plano-convex with a depressed center. The cap's margin is not striate and markedly extends beyond the ends of the lamellae. The volva is present on the cap as a farinose layer and large, rather dark, brownish warts. |
gills |
The gills are a very pale citrin yellow in side view and moderately distant. |
stem |
The stem (probably including the bulbous base) is about 100 mm long, with a turnip-shaped to narrowly spindle-shaped bulb that is up to 35 mm wide. The stem is covered with a farinose layer and bears a distinct annulus. The volval remnants on the basal bulb may be distinctly limbate in the button stage, but are soon lost. |
spores |
The spores of A. labordei measure 9 - 12.5 × 5.5 - 7 um and are white in mass, amyloid, and ellipsoid. There is no report of the presence or absence of clamps on the bases of basidia. |
discussion |
The poorly known species was described originally from a Eucalyptus plantation in the Malagasay Republic (then Madagascar). To my knowledge, A. labordei has not been reported since the original publication.—R. E. Tulloss |
brief editors | RET |
name | Amanita labordei | ||||||||
author | Bouriquet. 1942-43. Bull. Acad. Malgache 25: 13, pl. 1 (fig. 2). | ||||||||
name status | insufficiently known | ||||||||
english name | "Laborde's Lepidella" | ||||||||
MycoBank nos. | 246261 | ||||||||
GenBank nos. |
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holotypes | TAN [lost in fire per Dr. Bart Buyck (pers. comm.)]; other original material in PC | ||||||||
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 material on this pages is derived from the very sparse protolog of the present species and its accompanying illustration. | ||||||||
pileus | from protolog: often greater than 90 mm wide, yellow (more intensely over disc than at margin), convex, plano-convex, eventually depressed; context white; margin nonstriate, markedly projecting beyond ends of lamellae, appendiculate with (apparently) floccose yellow material; universal veil both as farinose layer covering much of surface and as large dark brownish polygonal warts. | ||||||||
lamellae | from protolog: ??, very pale citrin-yellow, moderately distant; lamellulae ??. | ||||||||
stipe | from protolog: up to 100 mm, narrowing upward, covered with sordid or yellow farinose layer; bulb napiform to narrowly fusiform, subradicating, not marginate, up to 35 mm wide; context white; partial veil quite distinct, with yellow tint; universal veil at first in sub-limbate fragments, rapidly detersile. | ||||||||
odor/taste | from protolog: Odor agreeable; taste sweet. | ||||||||
macrochemical tests |
from protolog: The following results are reported in the protolog: FeSO4 - negative. Guaiac - negative. H2SO4 - negative. KOH - negative. NH4OH - negative. Pyramidon?? - negative. | ||||||||
pileipellis | from protolog: not described. | ||||||||
pileus context | from protolog: not described. | ||||||||
lamella trama | from protolog: not described. | ||||||||
subhymenium | from protolog: not described. | ||||||||
basidia | from protolog: not described. | ||||||||
universal veil | from protolog: not described. | ||||||||
stipe context | from protolog: not described. | ||||||||
partial veil | from protolog: not described. | ||||||||
lamella edge tissue | from protolog: not described. | ||||||||
basidiospores | from protolog: [-/-/-] 9.0 - 12.5 × 5.5 - 7.0 µm, (est. Q = 1.70 - 1.80), hyaline, pale yellowish to colorless, smooth, amyloid, ellipsoid; apiculus not described; contents granular with large irregular guttules; white in deposit. | ||||||||
ecology | from protolog: In Eucalyptus plantation. | ||||||||
material examined | from protolog: MADAGASCAR, REPUBLIC OF: Ambanofotsy, 29.xii.1942 Dr. Barbier s.n. [Bouriquet G92] (syntype, PC). | ||||||||
discussion |
The illustration in the protolog shows a distinct yellow tint to surfaces and to the remains of the universal veil on the stipe, pileus margin, and partial veil edge. This pigmentation do not seem to penetrate the context in the illustration. This could reflect yellow pigment in the pileipellis and universal veil; but it could also be a limited case of the "yellowing disease." The holotype is lost due to fire. The collection reportedly (B. Buyck, pers. commun.) in PC is original material and could serve as lectotype if it is otherwise satisfactory. All material from Bouriquet with collection numbers beginning with "G" was sent to PC as representative of Bouriquet's novel species in April 1947 with a cover letter retained in PC that says nothing about types. | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Amanita labordei |
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name | Amanita labordei |
bottom links |
[ Section Lepidella page. ]
[ Amanita Studies home. ]
[ Keys & Checklists ] |
Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer; and explanations prepared for this site talk about specimen-observer pairs associated with each data set. Combining more data into a single data set is non-optimal because it obscures observer differences (which may be valuable for instructional purposes, for example) and may obscure instances in which a single collection inadvertently contains a mixture of taxa.