| name | Amanita foetens |
| name status | nomen acceptum |
| author | Singer |
| english name | "Argentine Stinking Lepidella" |
| cap |
The cap of A. foetens is 70 - 260 mm wide, convex, white, sometimes pinkish or yellowish tinge, dry, appendiculate, with a nonsulcate margin. At first, the cap is covered with rather small, adnate, pulverulent-floccose to subfelted, subpyramidal warts to patches on a felted-flocculose background; later the cap is completely pulverulent-flocculose to squamulose-subfelted, probably glabrescent with age. |
| gills |
The gills are crowded, free, white, and becoming dull cream to yellow. The short gills are attenuate. |
| stem |
The stem is 80 - 210 × 11 - 33 mm, subcylindrical, solid, firm, white, and floccose all over or with vague girdles of subfibrillose patches or nearly glabrous. |
| spores |
The spores measure 8 - 9.5 × 7.5 - 9 µm and are amyloid and globose to subglobose. Clamps are not found at bases of basidia. |
| discussion |
This species was described from Argentina. Recently I have received a report of the present species from Uruguay thanks to Alejandro Sequeira. Bas (1969) placed this species in his stirps Thiersii.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita foetens | ||||||||||||||||||||
| author | Singer. 1953. Rev. Mycol. (Paris) 28(1): 15. | ||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||
| english name | "Argentine Stinking Lepidella" | ||||||||||||||||||||
| MycoBank nos. | 292450 | ||||||||||||||||||||
| GenBank nos. |
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| holotypes | LIL; isotype, MICH | ||||||||||||||||||||
| 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 not directly from the protolog of the present taxon or another researcher's cited research is based on original research by R. E. Tulloss. | ||||||||||||||||||||
| pileus | 70 - 260 mm wide, white, convex, sometimes with pinkish or yellowish tinge, dry; context white, unchanging when cut or bruised; margin nonstriate, appendiculate; universal veil at first as rather small, adnate, pulverulent-floccose to subfelted, subpyramidal warts to patches (said to suggest remnants of universal veil on A. rubescens Pers. : Fr.) on a felted-flocculose background, later as a pulverulent-flocculose to squamulose-subfelted covering of the entire pileus, probably disappearing with age. | ||||||||||||||||||||
| lamellae | free, crowded, white, becoming dull cream to yellow, up to 18 mm wide; lamellulae attenuate. | ||||||||||||||||||||
| stipe | 80 - 210 × 11 - 33 mm, white, subcylindric, floccose all over or with vague girdles of subfibrillose patches or nearly glabrous; bulb broadly fusiform to broadly clavate; context solid, firm, white, unchanging when cut or bruised; partial veil apical, rather thick, cottony-submembranous, non-striate, mostly falling to pieces; universal veil absent from bulb (but see decoration of stipe, above). | ||||||||||||||||||||
| odor/taste | Odor absent when young or very slightly of “chloride of lime,” later strong and unpleasant like “urine” or “tiger den” or “Camembert.” Taste not recorded. | ||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||
| pileipellis | Bas (1969): "hardly differentiated," continuous with universal veil above and pileus context below. | ||||||||||||||||||||
| pileus context | not described. | ||||||||||||||||||||
| lamella trama | Bas (1969): bilateral "(in type: teste Singer)." | ||||||||||||||||||||
| subhymenium | Bas (1969): ramose to subcellular. | ||||||||||||||||||||
| basidia | Bas (1969): 40 - 50 × 9 - 11 μm, 4-sterigmate, with refractive contents when mature; clamps absent. | ||||||||||||||||||||
| universal veil | Bas (1969): On pileus: with elements in tips of warts more or less co-parallel and anitclinally oriented; inflated cells 50 - 120 × 10 - 35 μm, some yellowish and appearing to be refractive, elongate. On stipe: not described. | ||||||||||||||||||||
| stipe context | Bas (1969): longitudinally acrophysalidic; filamentous hyphae "rather broad"; inflated cells in subterminal chains. | ||||||||||||||||||||
| partial veil | not described. | ||||||||||||||||||||
| lamella edge tissue | not described. | ||||||||||||||||||||
| basidiospores |
Bas (1969): [30/2/2] 8.0 - 9.5 × 7.5 - 9.0 μm, (Q = 1.0 - 1.10 (-1.20)), pale yellowish in ammonia, with slightly thickened wall, globose to subglobose to broadly ellipsoid, sometimes attenuating toward apiculus; apiculus strongly projecting; content refractive; white in deposit. RET from holotype: [20/1/1] (7.2-) 7.5 - 9.5 × (6.0-) 6.8 - 8.2 (-8.5) µm, (L = 8.5 µm; L’ = 8.5 µm; W = 7.3 µm; W’ = 7.3 µm; Q = (1.0-) 1.09 - 1.29 (-1.32); Q = 1.16; Q’ = 1.16), ??, thin-walled, smooth, amyloid, subglobose to broadly ellipsoid, infrequently globose or ellipsoid; apiculus ??; contents ??; white in deposit. | ||||||||||||||||||||
| ecology | Subgregarious to gregarious. Terrestrial in fields and forests or in open grasslands far from trees. | ||||||||||||||||||||
| material examined |
Bas (1969): ARGENTINA: BUENOS AIRES—Santa Catalina, 27.xii.1965 R. Singer S620 (BAFC). TUCUMÁN—Pié del Periquillo, 30.xii.1951 R. Singer & H. Helberger T1672 (isotype; MICH). RET: ARGENTINA: BUENOS AIRES—La Plata - La Plata, Parq. Fac. Agronomía, 22.iv.1970 Lindquist & J. E. Wright s.n. (BAFC 30.603). Lomas de Zamora - LLavallol, Santa Catalina, 30.iii.1969 Isabel Mohadeb s.n. (BAFC "Cult.332"). San Isidro - Boulogne, Club Pueyrredón, cancha de Rugby, 24.iii.1993 Marcelo Cerdán s.n. [E. Albertó ED27] (BAFC 33.138); San Isidro, 3.iv.1980 John Christie s.n. [J. C. Paz 234] (BAFC). Unkn. Partido - Santa Catalina, 27.xii.1965 R. Singer S620 (BAFC n.v.). TUCUMÁN—Pié del Periquillo, 30.xii.1951 R. Singer & Helberger [Singer] T1672 (holotype, LIL; isotype, MICH n.v.). | ||||||||||||||||||||
| discussion | The holotype of this species is very poorly dried and very poorly preserved. A hyphomycete bearing plentiful conidia has invaded most of the hymenial surfaces. The remaining spores are mostly reduced to an amyloid rubble. Because the breadth is reduced in collapsed (but not squashed) spores, the values of W (7.3 µm) and Q (1.16) obtained from the holotype would be expected to be low and high respectively. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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