name | Limacella kauffmanii |
name status | nomen acceptum |
author | H. V. Sm. |
english name | "Kauffman's Slimy Stem" |
intro | The following is based on the original description by H. V. Smith (1945 ). |
cap | The cap of A. kauffmanii is about 20–75 mm wide, Bay Brown with a broad Raw Sienna margin when young, with the margin fading to Antimony Yellow, and with the surface below the slimy layer somewhat streaked with stripes of lighter and darker yellowish brown. The cap is broadly ovoid at first and becomes obtuse; finally it expands and exhibits a broad low umbo. Its flesh is white or pallid, cottony, and somewhat watery at first. The cap bears a thick layer of pale yellow slime. |
gills | According to its author, the gills appear free, but are connected to the stem by a "narrow strip" and have their ends attached to a "minutely floccose small circular ridge running around" the stem. The gills are close to crowded, white at first (becoming pallidlygrayish), thin, and about 3–5 mm broad. There is no clear information about the short gills. |
stem | The stems is reported to be 30–70 × 5–9 (–10) mm, with it ground color not recorded although it becomes brownish due to the dried slime. The stem is cylindric or narrowing upward, with the region at the top nearly undecorated; otherwise, the stem is "yellow ocher" due to a covering of slime. The flesh was said to be pallid and solid. A relatively thick bracelet of slime ["narrow, glutinous, brownish"] is created along the line of last contact between the cap edge and the stem. As the slimy coating dries on the stem, it is said to reveal a subfloccose decoration. This decoration is probably composed of the "slime-supporting" hyphae that kept the slime together on the stem surface. |
odor/taste | Odor is lacking. However, while the taste of the slime is "mild," the taste of the flesh of this mushroom is said to be (on occasion) both suggestive of flour or meal and slightly astringent. |
spores | Smith reported the spores as measuring 4–5 × 3 µm and inamyloid. RET estimates they would have been subglobose to broadly ellipsoid (maybe occasionally ellipsoid). Clamps were not originally reported; they are probably present at bases of basidia as well as throughout all or much of the fruiting bodies of the present species. |
discussion | This species occurs solitarily to gregariously and is sometimes subcespitose. Smith knew the species from Virginia and Tennessee in woods of oak or maple. |
brief editors | RET |
name | Limacella kauffmanii | ||||||||
author | H.V. Sm., 1945 . Pap. Mich. Acad. Sci., Arts & Lett. 30: 133. | ||||||||
name status | nomen acceptum | ||||||||
english name | "Kauffman's Slimy Stem" | ||||||||
MycoBank nos. | 287780 | ||||||||
GenBank nos. |
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holotypes | MICH 11354 | ||||||||
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 derived from the protolog of the present taxon. | ||||||||
pileus | from protolog: 20–75 mm wide, bay brown with a broad "raw sienna”" margin when young, with margin fading to antimony yellow, with surface below gluten somewhat streaked with stripes of lighter and darker yellowish brown, broadly ovoid at first, becoming obtuse, finally expanded with broad low umbo, even; context white or pallid, cottony, somewhat watery at first, becoming thin abruptly at half distance to margin; margin splitting during in situ drying; gluten layer thick, pale yellow. | ||||||||
lamellae | from protolog: "appearing free but adnexed by...narrow strip," [also "terminating in...minutely floccose small circular ridge running around...stipe"], close to crowded, white at first, becoming pallidly sordid, thin, 3–5 mm broad, deeply emarginate-rounded at stipe end, abruptly narrowing toward pileus margin, with edge entire; lamellulae absent? or not recorded. | ||||||||
stipe | from protolog: 30–70 × 5–9 (–10) mm, ground color not recorded, cylindric or narrowing upward, with apical region nearly undecorated, otherwise “yellow ocher” due to covering by gluten layer, becoming brownish from dried gluten; bulb not described; context pallid, solid; exannulate or with annular zone ["narrow, glutinous, brownish"] created at point of last contact between pileus and stipe; gluten layer "yellow ocher," becoming brown on drying, revealing subfloccose support hyphae as gluten dries. | ||||||||
odor/taste | from protolog: Odor none. Taste (of gluten) mild, (of context) subfarinaceous and subastringent or none. | ||||||||
macrochemical tests |
none recorded. | ||||||||
pileipellis | absent?? | ||||||||
pileus context | from protolog: spongy, but with subcompact brownish layer subtending universal veil. | ||||||||
lamella trama | not described. | ||||||||
subhymenium | not described. | ||||||||
basidia | from protolog: ca. 30 × 6 µm. | ||||||||
gluten layer | from protolog: On cap: filamentous undifferentiated hyphae supporting volval gluten more or less erect, hyaline, 3–4 µm wide µm wide, with terminal cells 150–200 µm long and having length/max.-width ratio ca. 50; clamp connections not recorded. | ||||||||
stipe context | not described. | ||||||||
partial veil | not described. | ||||||||
lamella edge tissue | probably fertile. | ||||||||
basidiospores | from protolog: 4–5 × 3 µm, (est. Q’ = 1.50), inamyloid, broadly ellipsoid to subglobose, [to ellipsoid,] ?; apiculus not described; contents not described; color in deposit not described. | ||||||||
ecology | from protolog: Solitary to gregarious to subcespitose. In woods of Quercus or Acer. | ||||||||
material examined | from protolog: U.S.A.: TENNESSEE—? Co. - GSMNP, ?, s.d. A. H. Smith s.n. (paratype, MICH?). VIRGINIA—Fairfax Co. - Chain Bridge, along Potomac R., 24.vii.1919 C. H. Kauffman s.n. (holotype, MICH 11354). | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Limacella kauffmanii |
bottom links | [ Keys & Checklists ] |
name | Limacella kauffmanii |
bottom links | [ Keys & Checklists ] |
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.