| name | Zhuliangomyces ochraceoluteus | ||||||||||||||||||||
| author |
(P. D. Orton) Redhead. 2019. Nomenclatural novelties. Index Fungorum. 385:1-1. ≡P. D. Orton. 1969. Notes Roy. Bot. Gard. Edinburgh 29: 106. | ||||||||||||||||||||
| name status | nomen acceptum | ||||||||||||||||||||
| english name | "Orton's Slimy Stem" | ||||||||||||||||||||
| synonyms |
≡Limacella illinita var. ochraceolutea (P. D. Orton) Neville & Poumarat. 2004. Fungi Europaei 9: 240. 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. | 333376, 366277, 555423 | ||||||||||||||||||||
| GenBank nos. |
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| lectotypes | syntypes in E and K | ||||||||||||||||||||
| revisions | Neville and Poumarat. 2004. Amaniteae: 240-244, fig. 42, phot. 13. | ||||||||||||||||||||
| 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 is from the protolog of the present taxon. | ||||||||||||||||||||
| pileus | from protolog: ca. 40 - 50 mm wide, light yellow to pale ochraceous, over disc darker ochraceous-honey or ferrugineous-honey, commonly paler yellow near margin, broadly convex, sometimes with broadly obtuse umbo, very glutinous; context white to whitish, tinted with pileus pigmentation in disc, with disc thick; margin not described; gluten layer near margin as viscous ochraceous region sometimes with gluten in scattered droplets and becoming darker colored minute punctation upon drying. | ||||||||||||||||||||
| lamellae | from protolog: free, crowded, whitish or tinted creamy light yellow, ventricose, with margin entire or somewhat eroded; lamellulae not described. | ||||||||||||||||||||
| stipe | from protolog: ca. 40 × 8 - 9 mm, whitish or (mainly toward base) pallidly sordid ochraceous, cylindric or slightly narrowing upward or downward, in exsiccata minutely silky-striate; bulb not described; context solid, whitish or (principally toward base) pale sordid ochraceous; exannulate; gluten layer as glutinous-viscid sheath [probably extending from original point of pileus-stipe contact to stipe base—ed.], in exsiccata as pale sordid ochraceous spots mainly toward stipe base. | ||||||||||||||||||||
| odor/taste | from protolog: strong, farinaceous. Taste not recorded. | ||||||||||||||||||||
| macrochemical tests |
none recorded. | ||||||||||||||||||||
| pileus context | not described. | ||||||||||||||||||||
| lamella trama | from protolog: bilateral. | ||||||||||||||||||||
| subhymenium | not described. | ||||||||||||||||||||
| basidia | from protolog: 28 - 32 × 7 - 8 μm, 4-sterigmate, with sterigmata 4 - 6 μm long. | ||||||||||||||||||||
| gluten layer | from protolog: On pileus: gluten layer; gluten supporting hyphae cylindric-flexuose, branching, 1 - 4 mm wide; clamps present. | ||||||||||||||||||||
| stipe context | not described. | ||||||||||||||||||||
| partial veil | not described. | ||||||||||||||||||||
| lamella edge tissue | not described. | ||||||||||||||||||||
| basidiospores | from protolog: [-/-/-] 4.5 - 6.0 × 3.5 - 4.0 μm, (est. Q = 1.29 - 1.50), ?subglobose, broadly ellipsoid to ellipsoid, inamyloid, nondextrinoid, minutely echinulate (aculeate) at highest magnification (requiring immersion oil); apiculus sublateral, porportionately large; contents not described; color in deposit not recorded. [Note: Q values conservatively estimated in order to provide approximation of sporograph.—ed.] | ||||||||||||||||||||
| ecology | from protolog: In deciduous forest. | ||||||||||||||||||||
| material examined | from protolog: UNITED KINGDOM: ENGLAND—Devon - Rousdon, Whitlands Landslip, 13.ix.1962 unkn. coll. s.n. (syntype, unkn. herb.). Somerset - Bishop's Lydeard, Park End, 20.x.1958 P. D. Orton s.n. (syntype, E; syntype, K). | ||||||||||||||||||||
| discussion |
The presence of pale sordid ochraceous "punctation" or other small markings on the dried pileus margin and the dried stipe suggest that at least some of the pigmentation is in the glutenous layers of the pileus and stipe. In this regard, note that the gluten retaining hyphae (called "pileipellis" in the protolog) are said to be "hyaline," by which we understand they are both transparent and colorless. A detailed type study is needed for this species. Comparisons with the present species are made on the taxon page for L. taiwanensis. | ||||||||||||||||||||
| citations | —R. E. Tulloss | ||||||||||||||||||||
| editors | RET | ||||||||||||||||||||
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| name | Zhuliangomyces ochraceoluteus |
| bottom links | [ Keys & Checklists ] |
| name | Zhuliangomyces ochraceoluteus |
| bottom links | [ Keys & Checklists ] |
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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