Limacella solidipes

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name	Limacella solidipes
name status	nomen acceptum
author	(Peck) H. V. Sm.
english name	Peck's Vanguard Limacella
intro	The following is derived from the description of Smith (1945 ).
cap	The cap of L. solidipes is 30 – 70 mm wide, white at first, becoming "pale pinkish buff" (very pale tan), broadly convex to plane, with surface subrimose in age, but never fibrillose or scaly, always opaque and dull, and viscid when moist. The cap's flesh is white, and 5^± mm thick above the stem. The cap's margin was not described. Considering the mention of viscidity and what little is known about the microscopic structure of the gluten layer, the cap was probably originally glutinous.
gills	The gills are attached to stipe by narrow tooth or are simply approximate, and crowded. They exhibit no color change when cut or broken. The short gills were not described.
stem	The stem is 80 – 100 × 10 – 12 mm, cylindric, glabrous above the partial veil and beaded with hyaline droplets, sparsely fibrillose below partial veil, and never scaly. A bulb is absent from the stem or exists only as a slight expansion of the stem's base. The stem's flesh is solid and firm. There is a ring on the stem that is superior, white, persistent, ample, and skirt-like. No gluten layer was described on the stem.
odor/taste	Odor and taste of this species are reportedly both strongly of flour or meal ("farinaceous").
spores	The spores reportedly measure 4 – 5 × 4 – 5 µm and are estimated to be between globose and broadly ellipsoid. The reaction in Melzer's Reagent was not reported, but the spores are probably inamyloid. Clamp connections were seen in the lamella trama; hence, they are probably present at the bases of basidia.
discussion	The presence of a membranous, persistent ring on the stem and the reported microscopic characters of the hyphae of the presumed gluten layer suggest the placement of the present species in L. sect. Amanitellae. Smith thought that L. mcmurphyi might be a synonym of the present species; however, our examination of the type of the latter has not been able to confirm that it is appropriately placed in sect. Amanitellae. Further study is necessary.—R. E. Tulloss
brief editors	RET

name

Limacella solidipes

author

(Peck) H.V. Sm. 1945 . Pap. Michigan Acad. Sci. 30: 142.
≡Lepiota solidipes Peck, 1899. Bull. New York St. Mus. 5: 647.

name status

nomen acceptum

english name

Peck's Vanguard Limacella

etymology

solidus, "solid" + pes, "leg" or "foot"; hence, "solid-stemmed"

MycoBank nos.

287782, 209997

GenBank nos.

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accession	locus	voucher	source



No data available in table

holotypes

NYS??

type studies

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 another researcher is based upon original research by R. E. Tulloss.

intro

The description is derived from the revision of Smith (1945 ). Her assumption of possible synonymy with L. mcmurphyi appears to be incorrect. See discussion.

pileus

30 – 70 mm wide, white at first, becoming "pale pinkish buff" (very pale alutaceous), broadly convex to plane, with surface subrimose in age, but never fibrillose or scaly, always opaque and dull, viscid when moist; context white, 5^± mm thick over stipe, thinning toward margin; margin ??; gluten layer ??.

lamellae

attached to stipe by narrow tooth or simply approximate, crowded, no color change when cut or broken, with edge even; lamellulae not described.

stipe

80 – 100 × 10 – 12 mm, cylindric, glabrous about partial veil, beaded with hyaline droplets, sparsely fibrillose below partial veil, never scaly; bulb absent or a slight expansion of stipe base; context solid, firm; partial veil superior, white and persistent, ample, pendulous; gluten layer ??.

odor/taste

both strongly farinaceous.

macrochemical
tests

none recorded.

pileipellis

absent??

lamella trama

bilateral, floccose, filamentous, becoming more compact toward hymenium, with cells about equal in width (3–8 µm wide), hyaline; central stratum composed of "very large cells"; clamps present.

subhymenium

comprising small, compactly arranged cells, hyaline.

basidia

19 – 32 × 4.5 – 6 µm, 4-sterigmate.

gluten layer

On pileus: hyphae supporting volval gluten erect, having "distinctive rather blunt-pointed end cells" which taper somewhat like the filaments of Rivularia.

[Note: Rivularia is a hair-like blue-green alga with each multicelled filament having a terminal cell with a well-differentiated shape.]

lamella edge tissue

fertile??

anatomical figures

basidiospores

send to graphing tool

[-/-/-] 4 – 5 × 4 – 5 µm, (est. Q = 1.0 – 1.25); apiculus "distinctive"; contents not described; color in deposit unknown.

ecology

Growing "on humus under alder (Alnus) on swampy ground."

material examined

U.S.A.: NEW YORK—?? (holotype, NYS??).

discussion

This taxon has some resemblance to L. roseicremea—cap colors, solid stipe, persistent partial veil, etc.; however, while the present taxon apparently has narrow, terminal cells on the gluten supporting hyphae of the gluten layer on the pileus [Smith’s (1945 ) description suggests placement in subsect. Limacella], L. roseicremea has subconic terminal cells arising from subtending inflated cells—a character typical of subsect. Amanitellae.

H. V. Smith (1945) referred L. mcmurphyi here, but says she had not checked the lamella trama. In fact, she did not have any information based on microscopic examination of mcmurphyi. It has now been observed that L. mcmurphyi has bilateral lamella trama. However, it cannot be the same taxon as L. solidipes. Examination of the type of L. mcmurphyi indicates that that the gluten-retaining hyphae are not of the type associated with section Amanitellae—they do no have inflated subterminal cells, for example. Moreover, a drawing of the fresh collection in the holotype packet does not show a skirt-like partial veil, but simply a wiggly line encircling the upper stipe. The two species are maintained as separate on this site. Could the pink tones on the cap in Smith's description of L. solidipes have derived from the original description of L. mcmurphyi? Check Peck's description.

Smith's description of the tapering tip-cells of the hyphae of the gluten layer and the stipe's persistent, membranous annulus suggest that this species should be placed in Limacella sect. Amanitellae. On this site, we have tentatively made this assignment.

citations

—R. E. Tulloss

editors

RET

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name	Limacella solidipes
name status	nomen acceptum
author	(Peck) H. V. Sm.
english name	Peck's Vanguard Limacella
anatomical figures

name	Limacella solidipes
bottom links	[ Keys & Checklists ]

name	Limacella solidipes
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Spore data for collections
provisionally identified as: Limacella solidipes (Peck) H. V. Sm.

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.

basidiospore definition

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