| name | Amanita multisquamosa |
| name status | nomen acceptum |
| author | Peck |
| english name | "Small Funnel-Veil Amanita" |
| synonyms |
multi- "many" + squamosus "squamose," "scaly," "warted"; hence, "many-scaled" or "many-warted" |
| images |
 1. Amanita multisquamosa, ca. North Adams, Massachusetts, U.S.A. (RET 027-6)   2. Amanita multisquamosa, Mt. Battie, Camden, Knox Co., Maine, U.S.A. (RET 479-2) |
| intro | Note: Dimensions, except for spore measurements) are taken from Jenkins (1986). |
| cap | Amanita multisquamosa has a 30 - 110 mm wide, rather pallid cap with a disc tinted tan or brown; the cap margin is distinctly striate. Most of the specimens found by RET fall at the lower end of the range of cap width. |
| gills | Jenkins (1986) says the gills are free to remote, crowded, and white; and the short gills are plentiful and truncate. |
| stem | The stipe is 35 - 130 × 3 - 12 mm (not including notable basal bulb in range of width), white, and annulate. The annulus in this species is often pulled up by the expansion of the pileus and, hence, looks funnel-shaped. The annulus of A. velatipes G. F. Atk. is often pulled into a similar shape. The rather pronounced collar of volval remains encircling the top of the bulb is shared with a number of taxa in what might be called the "pantherinoid group": A. albocreata G. F. Atk., A. pantherina (DC. : Fr.) Krombh., A. velatipes G. F. Atk., etc. Note that, on occasion, the volva of species in the "muscarioid group" may be similarly disposed (e.g., see images of A. muscaria var. guessowii Veselý). |
| spores | The spores measure (6.6-) 7.0 - 11.2 (-15.0) × (5.2-) 5.6 - 8.4 (-8.7) µm and are subglobose to broadly ellipsoid to ellipsoid and inamyloid. Clamps are rarely present at bases of basidia, according to Jenkins (1986). |
| discussion |
Amanita multisquamosa occurs in mixed coniferous and deciduous forest in eastern North America. Jenkins (1986) states that it may have been found in the Pacific Northwest; however, in the last thirty-plus years, I have never seen evidence of this. The mushroom should be presumed to be toxic. See also Amanita frostiana var. pallidipes Peck.—R. E. Tulloss |
| brief editors | RET |
| name | Amanita multisquamosa | ||||||||
| author | Peck. 1900b. Rep. (Annual) Regents Univ. State New York New York State Mus. Nat. Hist. 53: 840, pl. B, figs. 1-7. | ||||||||
| name status | nomen acceptum | ||||||||
| english name | "Small Funnel-Veil Amanita" | ||||||||
| synonyms |
≡Amanita pantherina var. multisquamosa (Peck) Dav. T. Jenkins. 1977. Biblioth. Mycol. 57: 65, pls. 9, 16, 22.
=Amanita cothurnata G. F. Atk. 1900. Studies Amer. Fung. : 66, figs. 68-70. ≡Venenarius cothurnatus (G. F. Atk.) Murrill. 1913. Mycologia 5: 74. ≡Amanitaria pantherina f.s. cothurnata (G. F. Atk.) E.-J. Gilbert. 1940. Iconogr. Mycol. (Milan) 27, suppl. (1): 77, tab. 19 (figs. 1-6). ≡Amanita pantherina f.s. cothurnata (G. F. Atk.) E.-J. Gilbert. 1941. Iconogr. Mycol. (Milan) 27, suppl. (2): 270.
=Amanita glabriceps Peck. 1909. Bull. New York St. Mus. 131: 18, pl u. ≡Venenarius glabriceps (Peck) Murrill. 1914a. N. Amer. Flora 10(1): 72. The editors of this site owe a great debt to Dr. Cornelis Bas whose famous cigar box files of Amanita nomenclatural information gathered over three or more decades were made available to RET for computerization and make up the lion's share of the nomenclatural information presented on this site. | ||||||||
| MycoBank nos. | 160865, 205816, 307629, 503899 | ||||||||
| GenBank nos. |
Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
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| lectotypes | A. multisquamosa—NYS. A. cothurnata—CUP. A. glabriceps—NYS. | ||||||||
| lectotypifications | A. cothurnata—Jenkins. 1977. op. cit.: 83. A. glabriceps—Ibid.: 86 . A. multisquamosa—Ibid.: 88. | ||||||||
| type studies |
A. cothurnata—Jenkins. 1977. op. cit.: 83. A. glabriceps—Ibid.: 86. A. multisquamosa—Ibid.: 88. A. glabriceps—Jenkins. 1978a. Mycotaxon 7: 30. A. multisquamosa—Ibid.: 32. A. cothurnata—Jenkins. 1982. Mycotaxon 14: 240. | ||||||||
| 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 not directly from the protolog of the present taxon and not cited as the work of another researcher is based on original research of R. E. Tulloss and C. Rodríguez Caycedo. | ||||||||
| anatomical figures |
 1. Amanita multisquamosa, normal spore and crassospore (with surface golfball-like) viewed with Nomarski Differential Interference Contrast at 1250x. Magnification as shown ca. 2800x. (RET 479-2) | ||||||||
| basidiospores |
from type study of Jenkins (1978a): [-/-/1] 8.7 - 11.0 × 7.0 - 8.7 μm, (Q = 1.10 - 1.39; Q' = 1.22), hyaline, smooth, thin-walled, inamyloid, subglobose to broadly ellipsoid to ellipsoid, often adaxially flattened, rarely bearin crassospores; apiculus sublateral, truncate-conic; contents guttulate; color in deposit not recorded. from type study of A. glabriceps by Jenkins (1978a): [-/-/1] 7.9 - 9.4 × 6.3 - 7.9 μm, (Q = 1.19 - 1.38; Q' = 1.28), hyaline, smooth, inamyloid, broadly ellipsoid to ellipsoid, adaxially flattened; apiculus sublateral, cylindric to truncate-conic; contents guttulate; color in deposit not recorded. from Jenkins (1982) study of the type of A. cothurnata: [-/-/1] 7.9 - 10.4 (-11.8) × (6.3-) 6.8 - 8.3 (-9.0) μm, (Q = 1.19 - 1.40; Q' = 1.33), hyaline, thin-walled, smooth, inamyloid, broadly ellipsoid to ellipsoid, adaxially flattened; apiculus sublateral, truncate-conic; contents guttulate; color in deposit not recorded. composite of data from all material revised by RET and CRC: [149/8/7] (6.6-) 7.0 - 11.2 (-15.0) × (5.2-) 5.6 - 8.2 (-8.8) µm, (L = 7.8 - 9.8 µm; L’ = 8.8 µm; W = 6.3 - 7.6 µm; W’ = 6.8 µm; Q = (1.05-) 1.12 - 1.50 (-1.63); Q = 1.22 - 1.39; Q’ = 1.30), hyaline, colorless, smooth, thin-walled, inamyloid, subglobose to broadly ellipsoid to ellipsoid, infrequently globose, adaxially flattened; apiculus sublateral, cylindric, proportionately broad; contents granular to monoguttulate; ?? in deposit. | ||||||||
| ecology | Solitary to subgregarious. Connecticut: At 210± m elev. Maine: At 180± m elev. In sandy, hard-packed glacial deposit in mature mixed hardwood/conifer forest. Ohio: At 290± m elev. Pennsylvania: At 235± m elev. | ||||||||
| material examined |
from type study of Jenkins (1978a): U.S.A.: NEW YORK—Suffolk Co. (Long Isl.) - Amagansett, from type study of A. glabriceps by Jenkins (1978a): U.S.A.: NEW YORK—Steuben Co. - Coopers Plains, from type study of A. cothurnata by Jenkins (1982): U.S.A.: NORTH CAROLINA—Watauga Co. - Blowing Rock, U.S.A.: CONNECTICUT—Tolland Co. - Gay City St. Pk. [41°43’23” N/ 72°26’38” W, 209 m], 31.viii.1997 R. E. Tulloss et al. 8-31-97-I (RET 268-2). FLORIDA—Alachua Co. - Gainesville, vii.1986 Dr. M. R. Goldman 7-86-MRG1 (RET 315-7), 11.viii.1985 Aaron Norarevian s.n. [Tulloss 8-11-85-AN6] (RET 091-5). MAINE—Cumberland Co. - Yarmouth, 17.vii.1988 S. S. Ristich s.n. [Tulloss 7-17-88-SSR1] (RET 124-8). Knox Co. - Camden, Mt. Battie, Mt. Battie Carriage Rd. [44°13’43” N/ 69°03’57” W, 178 m], 23.vii.2010 Wm. Bakaitis s.n. (RET 479-2). Penobscot Co. - Orono, University of Maine, University Forest [44°54'25" N/ 68°39'37" W, 43 m], 13.viii.1983 NEMF83 foray participant s.n. [Tulloss 8-13-83-F] (RET ??). MASSACHUSETTS—Berkshire Co. - North Adams, 16.viii.1986 N. Stern s.n. [Tulloss 8-16-86-H] (in herb. Carmine Lavorato; RET 027-6); North Adams, Appalachian Tr., Sherman Brk., 15.viii.1986 NEMF1986 participant s.n. [Tulloss 8-15-86-K] (RET 465-8). NEW JERSEY—Hunterdon Co. - Tewksbury Twp., 26.vii.1984 Geoffery Kibby & R. E. Tulloss [Tulloss] 7-26-84-B (RET 008-1), 7-26-84-D (RET 008-2), Tewksbury Twp., Rockaway Rd., 9.viii.1986 R. Phillips & Susan Hopkins [Phillips 3296] (RET 089-8). NEW YORK—Schenectady Co. - Mariaville, 18.viii.1986 M. A. King, Wayne & Jane Somers & R. E. Tulloss 8-18-86-E (RET 079-6). OHIO—Preble Co. - Somers Twp., Swan-Beatty Rd., Pleasant Vineyard Retreat Center [39°35'49" N/ 84°40'12" W, 293 m] | ||||||||
| discussion | One collection (23.vii.2010 Wm. Bakaitis s.n.) bore crassospores of typical form [viewed at 1250× with Nomarski Differential Interference Constrast (DIC)]. | ||||||||
| citations | —R. E. Tulloss and C. Rodríguez Caycedo | ||||||||
| editors | RET | ||||||||
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| name | Amanita multisquamosa |
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Spore data sets and their composite
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.
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