name | Amanita californica |
name status | nomen provisorum |
author | Bas |
english name | "California Lepidella" |
cap |
The cap of Amanita californica is about 60 - 70 mm wide, plano-convex, probably whitish, with a nonsulcate, slightly appendiculate margin. The cap is almost completely covered by pulverulent-flocculose layer of whitish volva. |
gills |
The gills are crowded, moderately broad, rounded near the margin of the cap, and probably white. The short gills are attenuate. |
stem |
The stem is up to 100 × 6 - 8 mm, probably whitish, exannulate, flocclose, and with hardly any remnants of pulverulent volva at the base. |
spores |
The spores measure (6.6-) 7.1 - 9 (-9.2) × 5 - 6.2 µm and are amyloid and broadly ellipsoid to ellipsoid. Clamps are absent at bases of basidia. |
discussion |
The present species was described from southern California (Santa Barbara). There is no record of potential plant symbionts. Bas (1969) states that he assumed the color was white or whitish because the specimen was called "A. solitaria" by its collector. There are several undescribed white species of section Lepidella known from southern California due to the work of Mr. Greg Wright in decades past. It should not be assumed that an unfamiliar white Lepidella found in the coastal part of southern California is A. californica. (RET would be very interested to receive such material if well-dried, well-annotated, and accompanied by a photograph.) Bas placed his provisionally named A. californica in his stirps Straminea. The only formally named taxon in this stirps in 1969 was A. austrostraminea D. A. Reid (South Australia). See that species for further information on the stirps.—R. E. Tulloss |
brief editors | RET |
name | Amanita californica | ||||||||
author | Bas nom. prov. | ||||||||
name status | nomen provisorum | ||||||||
english name | "California Lepidella" | ||||||||
etymology | "having to do with California" | ||||||||
GenBank nos. |
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revisions | Bas. 1969. Persoonia 5: 517, figs. 300-302. | ||||||||
intro |
The following text may make multiple use of each data field. 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 text is derived from the revision of Bas (1969) except for some additions based on original research of R. E. Tulloss. Bas (1969): Basidiomes medium-sized, rather slender. | ||||||||
pileus | Bas (1969): 60 - 70 mm wide, probably whitish, plano-convex, shiny in exsiccatum where exposed; context not recorded; margin nonsulcate, slightly appendiculate?; universal veil as almost complete layer covering pileus, pulverulent-flocculose, whitish. | ||||||||
lamellae | Bas (1969): attachment not recorded, crowded, probably whitish, moderately broad, rounded near pileus margin; lamellulae attenuate. | ||||||||
stipe | Bas (1969): up to 100 × 6 - 8 mm, probably whitish, flocculose; bulb slightly differentiated from stipe by width, cylindric, rooting; context not recorded; partial veil as subflocculose apical ring or absent; universal veil as sparse pulverulence at stipe base. | ||||||||
odor/taste | not recorded. | ||||||||
macrochemical tests |
none recorded. | ||||||||
pileipellis | Bas (1969): rather thick, with gelatinized suprapellis. | ||||||||
pileus context | not described. | ||||||||
lamella trama | Bas (1969): difficult to rehydrate. | ||||||||
subhymenium | Bas (1969): probably cellular. | ||||||||
basidia | Bas (1969): 40 - 45 × 8.5 - 11 μm, 4-sterigmate; clamps lacking. | ||||||||
universal veil | Bas (1969): with elements very probably irregularly disposed; filamentous hyphae 3 - 8 (-12) μm, abundant, branching; inflated cells abundant, ellipsoid to globose to pyriform, 50 - 100 × 30 - 70 μm, terminal singly or in short chains. | ||||||||
stipe context | Bas (1969): longitudinally acrophysalidic; filamentous hyphae 3 - 8 μm wide; clamps absent; acrophysalides up to 45 μm wide, sometimes with similarly inflated subterminal cell. | ||||||||
partial veil | absent or not described. | ||||||||
lamella edge tissue | Bas (1969): not found. | ||||||||
basidiospores |
Bas (1969): [20/1/1] (7.5-) 8.0 - 10.0 (-10.5) × (5.0-) 6.0 - 6.5 (-7.0) μm, (Q = (1.2-) 1.35 - 1.60; Q = 1.45 - 1.50), colorless to slightly yellowish, smooth, thin-walled, amyloid, broadly ellipsoid to ellipsoid; apiculus not described; contents subrefractive, guttulate; color in deposit not recorded. RET: [40/2/1] (6.6-) 7.1 - 9.0 (-9.2) × 5.0 - 6.2 μm, (L = 7.8 - 8.4 μm; L' = 8.1 μm; W = 5.5 - 5.8 μm; W' = 5.7 μm; Q = (1.20-) 1.32 - 1.56 (-1.60); Q = 1.42 - 1.45; Q' = 1.44), hyaline, colorless, smooth, thin-walled, amyloid, ellipsoid, infrequently broadly ellipsoid, occasionally adaxially flattened; apiculus sublateral, cylindric, proportionately short and broad; contents ??; color in deposit not recorded. | ||||||||
ecology | Bas (1969): no data. | ||||||||
material examined |
Bas (1969): U.S.A.: CALIFORNIA Santa Barbara Co. - Santa Barbara, 17.ii.1940 P. M. Rea 375 (MICH). RET: U.S.A.: CALIFORNIA Santa Barbara Co. - Santa Barbara, 17.ii.1940 P. M. Rea 375 (MICH). | ||||||||
discussion |
Bas (1969): "In the Uniersity Herbarium at Ann Arbor I saw two collections of the present species (Rea 358 and 375), both from California, filed as A. solitaria, which I was unable to identify with any species known. Unfortunately the collections are not accompanied by any field-notes and the valid publication of a name for this species will have to await further information. From the fact that the collections were identified as A solitaria by their collector we may deduce that the fruit-bodies were probably white or whitish. "On account of the rather small, ellipsoid spores, the distinctly gelatinized pileipellis, the absence of clamps and the microscopical structure of the volva, A. californica could be a white species of section Validae. Because of the rather friable partial veil and the completely pulverulent volva combined with the probably whitish colour of the fruit-body, however, the species has been placed here in section Lepidella for the time being. In connection with this it would be very useful to know for certain whether the margin of the cap is appendiculate or not. "I have considered the possibility that the present fungus is a slender form with elongate bulb of A. silvicola, which species also occurs in western North America but more to the north. However, the spores of A. silvicola are narrower (4.5 - 6 μm wide) and relatively more slender ([Q =] 1.5 - 2.0), while the inflated cellsin the remnants of its volva seem more frequently terminal [singly] than in A. californica." Since A. crassifolia (=A. subsolitaria) is no longer viewed as possibly belonging in stirps Straminea, the present species is the only one from North America that is still proposed to belong to stirps Straminea. All other taxa in the stirps are known only from Australia. | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Amanita californica |
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[ Keys & Checklists ] [ Pacific coastal states (USA) & region list ] |
name | Amanita californica |
bottom links |
[ Keys & Checklists ] [ Pacific coastal states (USA) & region list ] |
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.