| name | Amanita agglutinata sensu Pegler | ||||||||||||||||||||
| author | sensu Pegler. 1983. Kew Bull. Addit. Series 9: 290, fig. 52e-g. | ||||||||||||||||||||
| name status | sensu | ||||||||||||||||||||
| GenBank nos. |
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| intro |
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 (Pegler 1983). | ||||||||||||||||||||
| pileus |
Pegler (1983): 20 - 60 mm wide, white with faint grayish tints,
convex to planar or depressed; context thin,
fragile; margin sulcate-striate (0.5R),
nonappendiculate; universal veil as pure white
flat patches. [Note: Pegler's illustration {Pegler (1983): fig. 52E-G and pl. 7A} conflicts with this description in having short marginal striations ca. 0.15R (in fig.) and 0.35R (in pl.), an umbo in the center of the cap and no universal veil fragments.—ed.] | ||||||||||||||||||||
| lamellae |
Pegler (1983):
adnexed, moderately crowded, up to 5 mm broad, ventricose;
lamellulae, numerous. [Note: Pegler's illustration (1983 fig. 52E) shows attenuate lamallulae and flesh that has measurable thickness nearly to the margin of the cap. This is inconsistent with the placement of the species in Amanita section Vaginatae or Caesareae, in which lamallulae are almost always truncate.—ed.] | ||||||||||||||||||||
| stipe | Pegler (1983): 20 - 80 mm × 40 - 60 mm, white, slender, cylindric, slightly swollen at apex, glaborous with some recurved scales near base; context solid, white; partial veil white, superior, membranous, fragmenting, detersile, soon lost; universal veil as white, membranous, saccate volva, small | ||||||||||||||||||||
| pileipellis |
Pegler (1983):
filamentous hyphae 2 - 5 μm wide, gelatinized
near surface, subradially arranged [Note: Pegler did not describe a suprapellis and subpellis and gave no dimensions for the thickness of the pileipellis or its gelatinized region.—ed.] | ||||||||||||||||||||
| lamella trama | Pegler (1983): bilateral; filementous hyphae greater than 3+ μm wide; inflated cells up to 26 μm wide | ||||||||||||||||||||
| subhymenium | Pegler (1983): pseudoparenchymatous, with inflated cells 22 - 28 μm wide | ||||||||||||||||||||
| basidia | Pegler (1983): 35 - 45 × 13 - 5 μm, 4-sterigmate, with sterigmata up to 8 μm long | ||||||||||||||||||||
| lamella edge tissue | Pegler (1983): [Note: Pegler mistakenly assumed the lamella edge to be fertile. —ed.] | ||||||||||||||||||||
| basidiospores |
(Pegler 1983): [-/-/-] 9.0 - 12.0 (-14.0) ×6.0 - 8.0 μm, (L' = 10.6 ± 0.5 μm; W = 7.3 ± 0.5 μm; (est.) Q = 1.50 - 1.75; Q' = 1.43??), hyaline, thin-walled, ellipsoid to elongate; apiculus not recorded; contents refractile, guttulate; color in deposit not recorded. [Note: The range of spore shape that can be extracted from the data is unrealistically narrow and is not arithmetically compatible with the presented value of Q'. A revision of the Fiard collections will be useful.] | ||||||||||||||||||||
| ecology | (Pegler 1983): On sandy forest soil under Coccoloba uvifera or amongst Coccoloba pubescens leaves. | ||||||||||||||||||||
| material examined | (Pegler 1983): MARTINIQUE: Macabou, 6.xi.1976 J. P. Fiard 829A (K??); Morne Préfontaine, 14.x.1975 J. P. Fontaine 619 (K??). | ||||||||||||||||||||
| discussion |
Pegler's placement of this species in sect. Vaginatae
is questionable. The only
species of sect. Vaginatae known to have a partial
veil on the stem are found in tropical Africa and are
rare. Hence it is highly unlikely that this species
is in sect. Vaginatae. Jenkins (1977) reported on the type of Agaricus agglutinatus Berk. & M. A. Curtis. He described the universal veil on the pileus as small warts, the stipe as having a bulb at its base, and the universal veil as a short (ca. 2 mm high) limb at the top of the bulb. These characters separate the true A. agglutinata from the species to which Pegler applied the name, the true A. agglutinata is assignable to sect. Amanita. Pegler mentions no bulb at the stem base in his material, the photograph of plate 7A shows no basal bulb on the stipe, consequently we can assume the stipe is totally elongating and the presence of a partial veil then indicates the species should be placed in sect. Caesareae. Unfortunately Pegler did not report on the presence or absence of clamps at the bases of basidia. A review of the material cited above will be very useful. | ||||||||||||||||||||
| citations | —R. E. Tulloss and N. Goldman | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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