name | Amanita goauldiorum |
name status | nomen provisorum |
author | Tulloss |
english name | "False Gods' Ringless Amanita" |
images | |
intro | The following is based on the original research of R. E. Tulloss. |
cap | The cap of A. goauldiorum is ?? mm wide, orangish brown disc, paler and with grayish tint over the marginal striations, and bears a low umbo. The flesh of the cap is white, and no bruising or staining of the flesh was observed. The cap's margin is tuberculate-striate with the striations occupying about 65% of the cap's radius. Volval remnants were absent from the cap in the single collection examined. |
gills | The gills of this species are free to seceding and have a faint decurrent line on the upper stem. The gills are close, white in mass, white in side view; and bruising and staining were not observed. The gills have a white flocculose edge. The short gills are truncate, of diverse lengths, unevenly distributed [0 - 3 (-4?) between a pair of regular gills], and plentiful. |
stem | The ringless stem is white, becomes brown from handling, narrows upward, and is decorated with flocculose white material that is densest on the upper stem. The flesh of the stem is white, is stuffed or hollow, and has no staining or bruising reaction. The volva at the stem's base is a membranous, saccate volva that is probably whitish. |
odor/taste | Odor and taste were not reported. |
spores | The spores of this species measure 10.0 - 13.4 (-14.2) × (5.4-) 6.4 - 8.9 (-9.1) µm and are ellipsoid to elongate (rarely cylindric) and inamyloid. The presence or absence of clamps on the basidia remains to be determined. |
discussion |
Among North American species of section
Vaginatae with Q around 1.55-1.75 or
higher, there are none with pileus color comparable to
that seen in the present taxon and only one is
exannulate—A.
floridana (black disc with avellaneous
margin). The spores of the latter are
predominantly elongate to cylindric with
Q’ = 1.89. The following provides a comparison between the spore size-shape of the present species and that of A. rooseveltensis. Please note that the sample sizes of the two sets of spores behind the comparison are quite different: An nrLSU sequence was derived as part of the Agaricomyete Development Project (thanks to Bálint Dima and Laszlo Nagy, Szeged Univ.). There is no question that the species is assignable to Amanita sect. Vaginatae and belongs in Amanita stirps Rooseveltensis. ??more??—R. E. Tulloss |
brief editors | RET |
name | Amanita goauldiorum | ||||||||||||
author | Tulloss nom. prov. | ||||||||||||
name status | nomen provisorum | ||||||||||||
english name | "False Gods' Ringless Amanita" | ||||||||||||
etymology | Honoring the "military science fiction" television series "Stargate SG-1" in which the evil, parasitic race known as "Goa'uld" were (for the first eight seasons) the major threat to all other self-cognizant life in the Galaxy. | ||||||||||||
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.
| ||||||||||||
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 is based on the original research of R. E. Tulloss. | ||||||||||||
pileus | ?? mm wide, orangish brown disc, sordid and palely concolorous over striations, with low umbo; context white, no bruising or staining observed; margin tuberculate-striate (0.65R), nonappendiculate; universal veil absent in collection examined. | ||||||||||||
lamellae | free to seceding with faint decurrent line on upper stipe, close, white in mass, white in side view, bruising and staining not observed, ?? mm broad, with white flocculose edge; lamellulae truncate, of diverse lengths, unevenly distributed [0 - 3 (-4?) between pair of lamellae], plentiful. | ||||||||||||
stipe | ?? × ?? mm, white, browning from handling, narrowing upward, decorated with flocculose white material (densest in upper portion); contents white, staining and bruising not observed, stuffed or hollow, with ?? mm wide central cylinder; exannulate; universal veil as saccate volva, membranous, white?, ??. | ||||||||||||
odor/taste | Odor and taste not reported. | ||||||||||||
macrochemical tests |
none reported. | ||||||||||||
basidia | ??, 4-sterigmate, ??; clamps ??. | ||||||||||||
basidiospores | [20/1/1] 10.0 - 13.4 (-14.2) × (5.4-) 6.4 - 8.9 (-9.1) µm, (L = 11.5 µm; W = 7.3 µm; Q = (1.34-) 1.40 - 1.86 (-2.07); Q = 1.59), thin-walled, smooth, hyaline, colorless, inamyloid, ellipsoid to elongate, rarely cylindric, adaxially flattened; apiculus sublateral, cylindric, proportionately short and broad; contents mono- or multiguttulate with or without additional small granules; ?? in deposit. | ||||||||||||
ecology | Solitary. In lawn under Quercus and Acer, in a year of record rains and a period of temperatures regularly exceeding 32° C. | ||||||||||||
material examined | U.S.A.: NEW JERSEY—Essex Co. - Maplewood, 7.viii.2003 Renato DeBellonia s.n. (RET 368-3, nrLSU seq'd.). | ||||||||||||
discussion |
This species is known only from a single site. There is only one known North American species of section Vaginatae with Q of 1.55 or higher, —A. floridana (black disc with avellaneous margin). The spores of the latter are predominantly elongate to cylindric with Q’ = 1.89. Hence we can argue for novelty the present proposed taxon on morphological grouns. ??more?? As in the case of A. floridana, it is possible that there was originally a ring on the stem of the single known specimen of this taxon and that the taxon should be placed in Amanita sect. Caesareae. Formerly, this entity was called "Amanita species 52" in Tulloss' keys, unpublished manuscripts, and correspondence. | ||||||||||||
citations | —R. E. Tulloss | ||||||||||||
editors | RET | ||||||||||||
Information to support the viewer in reading the content of "technical" tabs can be found here.
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.