| name |
Amanita rubromarginata |
| author |
Har. Takahashi. 2004. Mycoscience 45: 372, figs. 1-2. |
| name status |
nomen acceptum |
| english name |
"Red-Skirted Slender Caesar" |
| etymology |
ruber, "red" + marginatus, "marginate"; because of the red-edged lamellae |
| MycoBank nos. |
373370 |
| GenBank nos. |
Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
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|
| holotypes |
KPM [Kanagawa Prefectural Museum of Natural History]; isotype, RET |
| 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 and from original research of R. E. Tulloss. |
| pileus |
from protolog: 40 - 80 mm wide, at first orange (6B7-8) to brownish orange (6-7C7-8) overall, then reddish-yellow (4B7-8) toward margin, in age grayish yellow (4C7) over disc, at first cylindric-campanulate, expanding to nearly planar to slightly concave and subumbonate. glabrous, subviscid when wet; context soft, yellowish white except deeper yellow just below pileipellis, 3-7 mm thick over stipe; margin long sulcate-striate; universal veil absent. |
| lamellae |
from protolog: free, very close (55 - 70), pale yellow, up to 10 mm broad, with edges fimbriate and reddish orange (7B7-8); lamellulae in 1-3 "series." |
| stipe |
from protolog: 60 - 120 × 5 - 16 μm, pale yellow, usually covered with reddish orange (7B7-8) appressed "indefinite squamules forming irregular transverse zones," subcylindric or slightly narrowing upward, silky fibrillose; context hollow; partial veil subapical, thin, membranous, 10-15 mm wide, reddish orange (7B7-8), striate [above]; universal veil as saccate volva, 20 - 40 × 10 - 25 mm, thick, bilobate, white, sometimes stained dingy brown. |
| odor/taste |
from protolog: Odor and taste indistinct. |
macrochemical
tests |
none recorded. |
| pileipellis |
from protolog: filamentous hyphae 4 - 8 μm wide, with orange (5A6) to deep orange (5A8) intracellular pigment, thin-walled; clamps occasional. |
| pileus context |
from protolog: filamentous hyphae 5 - 14 μm wide, colorless, thin-walled, "parallel to...pileipellis elements." |
| lamella trama |
from protolog: bilateral, narrow; with intercalary cells cylindric to clavate to subfusiform. |
| subhymenium |
from protolog: inflated ramose, 20 - 40 μm thick, comprising subglobose to ellipsoid cells in 1 - 3 layers. |
| basidia |
from protolog: 25 - 30 × 8 - 10 μm, 4-sterigmate. [Note: Clamps are undoubtedly present. ed.] |
| universal veil |
from protolog: On pileus: absent. On stipe base: filamentous hyphae 4 - 8 μm wide; inflated cells scattered, oblong or broadly clavate or ellipsoid or subglobose, 35 - 75 × 12 -40 μm. |
| stipe context |
from protolog: longitudinally oriented tissue; Near surface: filamentous hyphae 4 - 14 μm wide, with reddish yellow (4A7) to deep yellow (4A8) vacuolar pigment, thin-walled. Interior: filamentous hyphae 8 - 38 μm wide, colorless, thin-walled. [Note: Given the hyphal diameters cited, acrophysalides are treated as "hyphae."—ed.] |
| partial veil |
not described. |
| lamella edge tissue |
from protolog: inflated cells plentiful to scattered, narrowly clavate to pyriform, 30 - 60 &time; 8 - 15 μm, thin-walled, colorless or with dark orange (5A8) to orange (5A6) intracellular pigment. |
| basidiospores |
from protolog: [20/2/2] 8 - 9 × 5.5 - 7 μm, (Q = 1.28 - 1.45), colorless, smooth, thin-walled, inamyloid, broadly ellipsoid to ellipsoid; apiculus sublateral and truncate-conic (both per figure); contents as large refractive guttule; color in deposit not recorded.
from isotype in RET: [21/1/1] 7.5 - 9.5 (-10.5) × (5.8-) 5.9 - 6.9 (-7.6) μm, (L = 8.5 μm; W = 6.3 μm; Q = (1.21-) 1.22 - 1.43 (-1.69); Q = 1.34), hyaline, colorless, smooth, thin-walled, broadly ellipsoid to ellipsoid (infrequently elongate), often adaxially flattened; apiculus ??; content dominantly monoguttulate with occasional small granules; color in deposit not recorded. |
| ecology |
from protolog: Scattered. In broad-leaved forest dominated by Quercus miyagii Koidz. and Castanopsis cuspidata (Thunb. ex Murray) Schottky var. sieboldii (Mak.) Nakai.. |
| material examined |
from protolog: JAPAN: OKINAWA-KEN—Ishigaki Isl., Ishigaki-shi, Banna-dake, 8.vi.2001 H. Takahashi s.n. (paratype, KPM NC0010087), 15.ix.2003 H. Takahashi s.n. (holotype, KPM NC0011979; isotype, RET 383-1).
RET: JAPAN: OKINAWA-KEN—Ishigaki Isl., Ishigaki-shi, Banna-dake, 15.ix.2003 H. Takahashi s.n. (holotype, KPM NC0011979; isotype, RET 383-1). |
| discussion |
The author gives the Japanese name for this species as "fuchidori-tamagotake." |
| citations |
—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite