name | Limacella asperulospora |
name status | nomen acceptum |
author | Corner |
intro | The following is RET's interpretation of the original description by Corner (1994a). |
cap | The smooth-margined cap is approximately 40 mm wide, buff-white, becoming brownish toward the dark brown center, plano-convex, and opaque. The flesh was described as thin, dry, and white becoming pale buff. A gluten layer is present. |
gills | The gills are rounded at the stem and nearly free, crowded, and white before becoming pale buff. On one cap, Corner counted 44 "primary" gills. The short gills are reported to form 3 to 4 ranks. |
stem | The solid stem is 30 × 2.5 mm, white, then pale buff, cylindric, smooth, with the top bearing some white fibrils, and the bottom part "becoming viscid." No bulb or ring is mentioned in the original description. The gluten layer appears to comprise hyphae projecting from the stem's surface and bearing gluten and/or gelatinizing. |
odor/taste | The mushroom smells strongly of flour or meal. No taste has been reported. |
spores | Corner reported both spore measurements made from fresh material and measurements made from the same material after being preserved in formol. When the type was fresh, the spores measured 4.5 – 5.5 × 4 – 5 µm. After being in formol, the spores measured 3.7 – 4.2 × 3 – 3.7 µm. The spores are estimated to be subglobose to broadly ellipsoid and were decorated with fine spines. Reaction to Melzer's reagient was not reported. Clamps are common at the bases of basidia. |
discussion | See the very similar species L. singaporeana, also described from Singapore. |
brief editors | RET |
name | Limacella asperulospora | ||||||||
author | ["asperospora"] Corner, 1994a. Beih. Nova Hedwigia 130: 34, fig. 9. | ||||||||
name status | nomen acceptum | ||||||||
etymology | asperulus "minutely roughened because of minute points or minute stiff hairs" + spora "spore" | ||||||||
MycoBank nos. | 362955 | ||||||||
GenBank nos. |
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holotypes | in herb. E. J. H. Corner (in liquid) | ||||||||
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. This description is based upon the editor's interpretation of the protolog. | ||||||||
pileus | 40 mm wide, buff-white, becoming brownish toward fuscous brown disc, plano-convex, opaque; context thin, dry, white becoming pale buff; margin smooth; gluten layer present. | ||||||||
lamellae | rounded adnexed, nearly free, crowded, white, then pale buff, thin, up to 3 mm broad, including 44 "primaries"; lamellulae in 3–4 ranks. | ||||||||
stipe | 30 × 2.5 mm, white, then pale buff, cylindric, smooth, with apex slightly white fibrillose, becoming viscid in lower part; bulb not mentioned in protolog; context solid; exannulate; gluten layer as? hyphae arising from stipe surface, bearing gluten and/or gelatinizing. | ||||||||
odor/taste | Odor strong, farinaceous; taste not reported. | ||||||||
macrochemical tests |
none recorded. | ||||||||
pileipellis | absent? | ||||||||
pileus context | filamentous undifferentiated hyphae 25–150 × 3–25 µm, often branching at wide angles; acrophysalides not differentiated from intercalary inflated cells by the author; clamps occasional to infrequent. | ||||||||
lamella trama | "as in the pileus, interwoven, the tissue not fissile." | ||||||||
subhymenium | ca. pseudoparenchymatous; comprising short inflated cells 5–7 µm wide, ??; clamps present. | ||||||||
basidia | 20–24 × 5–6 µm, 4-sterigmate; clamps numerous(?). | ||||||||
gluten layer | comprising "mucilaginous pile 100–130 µm high," including "subcylindric to subclavate hyphal terminal cells 3–5 µm wide, more or less erect, with brown sap." | ||||||||
stipe context | longitudinally acrophysalidic. Stipe interior: filamentous undifferentiated hyphae 4–8 µm wide, with segments 35–250 µm long, occasionally branching; acrophysalides (clavate, not branching) and inflated intercalary hyphal segments (fusiform to subglobose to subclavate) numerous, 70–400 × 14–42 µm; vascular hyphae not noted; clamps present. Stipe surface: filamentous undifferentiated hyphae 2–5 µm wide, projecting, with walls becoming mucilaginous toward stipe base; caulocystidia lacking. | ||||||||
partial veil | absent?? | ||||||||
lamella edge tissue | fertile. | ||||||||
basidiospores |
from protolog: [-/-/-] 3.7–4.2 × 3–3.7 µm (preserved in formol), (est. Q’ (preserved in formol) = 1.18), ??, subglobose to broadly ellipsoid or pip-shaped, finely asperulate when fresh; apiculus ??; contents monoguttulate; white in deposit. [Spore measurements from fresh material were reported as 4.5–5.5 × 4–5 µm, with est. Q' = 1.11.] [Note: Inadequate data to produce sporograph.] | ||||||||
ecology | from protolog: Solitary. On the ground in forest. | ||||||||
material examined | from protolog: SINGAPORE: Bukit Timah, 2.xii.1940 E.J.H. Corner s.n. (holotype, in herb. E. J. H. Corner, in liquid). | ||||||||
discussion | See the very similar species L. singaporeana, also from Singapore. | ||||||||
citations | —R. E. Tulloss | ||||||||
editors | RET | ||||||||
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name | Limacella asperulospora |
bottom links | [ Keys & Checklists ] |
name | Limacella asperulospora |
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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.