| name | Amanita occidentalis | ||||||||
| author | O. K. Mill. & Lodge. 2001. Mycotaxon 79: 291, figs. 1-3, 1-12, 15. | ||||||||
| name status | nomen acceptum | ||||||||
| english name | "Caribbean Amidella" | ||||||||
| etymology | occidentalis, "west" or "western"; probably a reference to Pinus occidentalis, a probably symbiont. | ||||||||
| MycoBank nos. | 474288 | ||||||||
| 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 | JBSD | ||||||||
| 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. | ||||||||
| pileus | from protolog: 45 - 65 mm wide, brownish orange Tawny (5.0YR5.0/7.0) over disc to Raw Sienna (7.5YR5.5/9.0), fading to pale orange with pinkish tint, Pale Pinkish Buff over margin, with light tan ground color, broadly convex, moist; context soft, white; margin obscurely short-striate; universal veil as white to sordid light orange-brownish or Tawny Olive (1.0Y5.2/4.5), scattered patches. | ||||||||
| lamellae | from protolog: nearly free, dull white, medium broad; lamellulae short, "scattered." | ||||||||
| stipe | from protolog: 48 - 100 × (4-) 8 - 25 mm (width measured "above volva"), narrowing upward, with raised brown surface fibrils becoming nearly white with age; bulb [lacking in the section—ed.]; context soft and white in upper stipe, tinted brown below, with soft "enteria"; partial veil as superior "zone," friable, disappearing with age; universal veil as saccate volva, white, tinted orange-brown in age. | ||||||||
| odor/taste | from protolog: Odor "pleasant, but not distinctive." Taste not recorded. | ||||||||
| macrochemical tests |
none recorded. | ||||||||
| pileipellis | from protolog: "ixomyxocutis"; filamentous hyphae 2.4 - 4.5 μm wide, thin-walled, hyaline, interwoven "to nearly erect" at surface. | ||||||||
| pileus context | from protolog: filamentous hyphae thin-walled, hyaline; acrophysalides 27(?) - 43 μm wide, thin-walled. | ||||||||
| lamella trama | from protolog: divergent; filamentous hyphae thin-walled. 2.7+ μm wide; inflated cells up to 44 μm wide. | ||||||||
| subhymenium | from protolog: "textura intricata" several cells thick; inflated cells 7 - 13 × 5 - 8.5 μm, thin-walled, hyaline. | ||||||||
| basidia | from protolog: 44 - 53 × 8.0 - 11.7 μm, 4-sterigmate, long-clavate, thin-walled, hyaline; clamps presence/absence not recorded. | ||||||||
| universal veil | from protolog: On stipe base, inner surface: hyphae 4.2 - 15 μm wide, densely interwoven. On stipe base, interior: including inflated cells up to 106 × 33 μm, thin-walled, hyaline. | ||||||||
| stipe context | not described in protolog. | ||||||||
| partial veil | not described in protolog. | ||||||||
| lamella edge tissue | from protolog: inflated cells 25 - 27 × 17 - 11 μm, ovoid to globose, thin-walled, hyaline, usually in a single layer. [Note: originally misdescribed as "cheilocystidia" by Miller.—ed.] | ||||||||
| basidiospores | from protolog: [-/-/-] (9-) 10 - 14 × 5.5 -9.0 μm, (Q = 1.47 - 2.03; Q = 1.68), hyaline, thin-walled, ellipsoid to elongate, occasionally cylindric, amyloid; apiculus sublateral and proportionately small(per figure); contents not recorded; color in deposit not recorded. | ||||||||
| ecology | from protolog: At 2200 m elev. Under pure stand of Pinus occidentalis. | ||||||||
| material examined | from protolog: DOMINICAN REPUBLIC: PROV. LA VEGA—Valle Nuevo, ca. cabina de la Fundación Moscoso Puello [2200 m], 21.xi.1997 D. J. Lodge & O. K. & H. H. Miller [O. K. Miller 27082, CFMR-DR-1250] (holotype, JBSD 88204), 30.vii.1996 D. J. Lodge s.n. [CFMR-DR-104] (paratype, CFMR; paratype, JBSD 88205). | ||||||||
| citations | —R. E. Tulloss | ||||||||
| editors | RET | ||||||||
Information to support the viewer in reading the content of "technical" tabs can be found here.
| name | Amanita occidentalis |
| bottom links | [ Keys & Checklists ] |
| name | Amanita occidentalis |
| bottom links | [ Keys & Checklists ] |
Spore data sets and their composite
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.
Text and User-Generated Sporographs are published under the Creative Commons License.
In the case of a taxon page, image credits are on the 'image' tab.