name | Amanita nitida sensu Coker |
name status | sensu |
intro | The following description is based on Bas (1969). |
discussion | So far as is known, Coker's material revised by Bas is the only extant material of this mushroom.—R. E. Tulloss |
brief editors | RET |
name | Amanita nitida sensu Coker | ||||||||
name status | sensu | ||||||||
GenBank nos. |
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intro | The following material is based on (Bas, 1969). | ||||||||
pileus | from Bas (1969): 35 mm wide, white with grayish center, hemispherical, then plane, dry; context not recorded; margin appendiculate, not or faintly striate; universal veil as regularly distributed warts, gray, 1 - 2.5 mm wide, adnate, subpyramidal. | ||||||||
lamellae | from Bas (1969): just reaching stipe, rather crowded, cream white, 5 mm broad, with flocculose edge. | ||||||||
stipe | from Bas (1969): 38 × 8 mm, white, subcylindric, flocculose; bulb 25 × 20 mm, elongate-napiform, rooting; context "pale pinkish gray"; partial veil apical, flocculose, fugacious, white, striate, appressed; universal veil as subverrucose remains on top of bulb, felted, gray. | ||||||||
odor/taste | from Bas (1969): Odor faintly unpleasant ("chloride of lime"). Tasteless. | ||||||||
macrochemical tests |
none recorded. | ||||||||
pileipellis | from Bas (1969): as rather thick layer; filamentous undifferentiated hyphae 2 - 5 μm wide, interwoven, more or less gelatinized, in part yellowish and somewhat refractive. | ||||||||
lamella trama | from Bas (1969): bilateral. | ||||||||
subhymenium | from Bas (1969): ramose. | ||||||||
basidia | from Bas (1969): 45 - 55 × 11 - 13 μm, 4- and 2-sterigmate; clamps inconspicuous. | ||||||||
universal veil | from Bas (1969): On pileus: with elements in abundant, rather long, parallel, erect rows; filamentous hyphae 2 - 8 μm wide, scattered, branching; inflated cells predominantly ellipsoid, also globose or pyriform or elongate, up to 55 × 45 μm, with vacuolar brown pigment; vascular hyphae rather abundant. | ||||||||
stipe context | from Bas (1969): longitudinally acrophysalidic. | ||||||||
lamella edge tissue | from Bas (1969): "fringe of partly collapsed hyphae and small pyriform to clavate cells." | ||||||||
basidiospores | from Bas (1969): [20/1/1] 10 - 14.5 × 5.5 - 7 (-7.5) μm, (Q = 1.6 - 2.4; Q = 1.9 - 2.1), thin-walled, [amyloid(?),] elongate to cylindric, slightly depressed adaxially; apiculus sublateral, cylindric [per figure—ed.]; contents subgranular, slightly refractive, yellowish in alkaline solution; white in deposit. | ||||||||
ecology |
from Bas (1969): Terrestrial in woods. North Carolina: At ca. 100 m elev. | ||||||||
material examined | from Bas (1969): U.S.A.: NORTH CAROLINA—Orange Co. - Chapel Hill, Meeting of the Waters [35°54'04" N/ 79°02'02" W, 101 m], 18.vi.1917 W. C. Coker 2525 (NCU). | ||||||||
discussion |
from Bas (1969): "Amanita nitida sensu Coker is closely related to A. atkinsoniana and A. onusta. The type of tissue in the warts on the cap, however, resembles most strongly that in A. atkinsoniana. Just as in that species, there are abundant oleiferous [vascular] elements, especially in the base of the warts, which turn brownish yellow in alkaline solution. Therefore the rows of inflated cells are less obvious than in the warts of A. onusta, in which oleiferous elements [vascular hyphae] are scarce and the inflated cells more strongly colored. "The strongly elongate spores of A. nitida sensu Coker and the aberrant habit are reasons to keep it separate for the moment. The more so as Coker's collection consists of only one specimen, which probably [was] picked in bud-stage and expanded afterwards. "Because of the uncertain status of this species and the inadequate collection on which it is based, I refrain from naming it formally." | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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