Name: Corticium minnsiae (H.S. Jacks.) Boidin & Lanq.

 

Name: Corticium minnsiae (H.S. Jacks.) Boidin & Lanq.

Most Confident Observations:
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First person to use this name on MO: Noah Siegel
Editors: walt sturgeon, Oluna & Adolf Ceska, GALL Alain

Nomenclature:
Rank: Species
Status: Accepted
Name: Corticium minnsiae
Author: (H.S. Jacks.) Boidin & Lanq.
Citation: Bull. trimest. Soc. mycol. Fr. 99(3): 275 (1983) / Boidin, J.; Lanquetin, P. 1983. Les genres Vuilleminia et Corticium sensu stricto (Basidiomycètes) en France. Bulletin de la Société Mycologique de France. 99:269-279
Deprecated Synonym(s): Aleurodiscus minnsiae H.S. Jacks.
Classification:
Notes on Taxonomy: [Edit]

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Brief Description:

Aleurodiscus Minnsiae sp. nov.

Literature :

Jackson, H.S. 1950. Studies of Canadian Thelephoraceae. V. Two new species of Aleurodiscus. Canadian Journal of Research. 28(1):63-77

Page number : 67
Description type : Latin diagnosis
Description : Aleurodiscus Minnsiae sp. nov.
Fructificatio late effusa vel in irregularibus areolis, primo vivide roseo-alutacea, dein cremeo-alutacea vel alba, tenuiter membranacea, separabilis, margine abrupto vel attenuato; subiculum crasse tunicatis hyphis 3-4 µm diam. nodoso-septatis compositum; paraphyses multae, nodulosae, ramis irregularibus brevibusque praeditae; basidia longo-cylindracea vel subclavata, 80-110 × 8-10 µm, flexuosa, 4 subulatis arcuatis 7-8.3 µm longis sterigmatibus praedita; basidiosporae ovoideae 12-16 × 8.5-11 µm, tunicis tenuibus, hyalinis, non-amyloideis.

Taxon name :

1. Aleurodiscus minnsiae H.S. Jacks., Canadian Journal of Research 28 (1): 67 (1950) [MB#292376]
2. Corticium minnsiae (H.S. Jacks.) Boidin & Lanq., Bulletin de la Société Mycologique de France 99: 275 (1983) [MB#107863]
3. Laeticorticium minnsiae (H.S. Jacks.) Donk, Fungus 26: 17 (1956) [MB#299341]

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Aleurodiscus Minnsiae sp. nov. (Figs. 1 to 7, 9, 11)

Literature :

Jackson, H.S. 1950. Studies of Canadian Thelephoraceae. V. Two new species of Aleurodiscus. Canadian Journal of Research. 28(1):63-77

Page number : 67
Description type : Original description
Description : Aleurodiscus Minnsiae sp. nov. (Figs. 1 to 7, 9, 11)
Fructification when mature widely effused or in irregular patches, bright pinkish buff to shell pink or pale flesh color when fresh, fading to cream buff or white, 125-200 µm thick, surface at first continuous, becoming rimose in age exposing the subiculum, soft membranous, separable. margin irregular, abrupt or thinning out; subiculum made up of thick-walled hyphae, 3-4 µm in diam., – with capillary lumen, arranged more or less horizontally below, interwoven in the subhymenium, with regular clamps; paraphyses abundant in the hymeniurn, thin-walled, 1.5-2 µm in diam., nodulose, with irregular peglike branches; basidia arising from deep in the subiculum, long cylindrical or subclavate 80-100 × 8-10 µm, more or less flexuous, bearing four subulate. arcuate sterigmata, 7-8.5 µm long; basidiospores ovoid 12-16 × 8.3-11 µm, slightly flattened on one side with conspicuous apiculus, walls thin, smooth, colorless, non-amyloid.
Basidial fructification preceded or accompanied by a characteristic sclerotial disseminating phase described in the text.
Associated anamorph: Minnsia carnea Ellis & Everh. ined.
The species to be described under the above name is of special interest because of a unique sclerotial disseminating phase which precedes the basidial fructification and occurs on the upper side of the twigs of the host in mid-summer or early fall. This phase when mature consists of a brightly colored, open, cup-shaped structure about 1 mm. in diameter which has in the center, loosely attached at the base, a flattened sphaeroid body about 1/2 mm. in diameter which finally becomes free and apparently functions as a sclerotial propagating body. The structure might be described as like a tiny “nest” with a single “egg”. It shows a superficial resemblance to Sphaerobolus but is sessile on the substratum and has a more open, less lacerated peridium, with no suggestion of a median gelatinous layer.
Canada, Ontario: On Tsuga canadensis, N. Bathurst St., Toronto, Oct. 1934. with R. F. Cain, TRT 8231, NY; Bell’s Lake, N. of Parry Sound. Sept. 22, 1935, TRT 8233, NY. FH, BPI, OTB, IA; East of Maple, Nov. 9, 1935. TRT S232, NY, FH, BPI, OTB; May 5, 1936, TRT 9835, NY, FH; June 1, 1036, with R. F. Cain, TRT 10474; Holland River Marsh, Oct. 2. 1936. with R. F. Cain, TRT 11116, NY. FH; June 3, 1937, TRT 11131 type, NY. FH, BPI, OTB,

Taxon name :

1. Aleurodiscus minnsiae H.S. Jacks., Canadian Journal of Research 28 (1): 67 (1950) [MB#292376]
2. Corticium minnsiae (H.S. Jacks.) Boidin & Lanq., Bulletin de la Société Mycologique de France 99: 275 (1983) [MB#107863]
3. Laeticorticium minnsiae (H.S. Jacks.) Donk, Fungus 26: 17 (1956) [MB#299341]

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Corticium minnsiae (Jackson) Boidin & Lanquetin

Literature :

Thorn, R.G. 1991. Taxonomic studies of cultures of selected Corticiaceae. :1-398

Page number : 308
Remarks (public) : Isolates 361 and 557, both from sclerotia that had clamp connections, are now simple-septate. In 361 some marginal hyphae appear dendrohyphidial in their branching, and some of these short, contorted branches look like false clamp connections, not associated with septa. In 557 there are some thick-walled hyphae and thick-walled, terminal or intercalary, single or monilioid swellings to 12.5 µm broad in aerial and submerged older mat, with walls to 2.0 µm thick. Both are slowgrowing. This species, although it is heterothallic, also has the potential for clonal dispersal via its sclerotia, which are produced in tiny cups on the upper surface of the twigs it inhabits (Jackson 1950). These have been compared to the splash-cups of birds-nest fungi (Brodie 1951). Dispersed sclerotia were found trapped in the cup-like, persistent woody leaf-bases on dead Tsuga twigs in one collection (voucher for 557). It is probable that the antler-like hyphae on the surface of the peridioles function in wetability and the adhesion of these peridioles to vegetation once dispersed, as has been indicated by Brodie (1984) in peridioles of Nidula.
This species is best distinguished in culture from C. boreoroseum by its colony morphology on MEA, on which it develops submerged, radially plumose, brownish orange veins.

Description type : Culture description
Description : Corticium minnsiae (Jackson) Boidin & Lanquetin
References: Jackson (1950 as Aleurodiscus).
Species code: (1-2a).3c.7.32.36.(39).(44-)46(-47).(50-51-52-53).55.59.
Monokaryon code: (1-2a).6.(26m).(27).(31f).36.39.47.55.
Growth on MEA: Moderate, plates covered in 4 wk, to very slow, plates not covered after 6 wk. Radius at 2 wk averaging 29.6 mm (9.5-55.5), at 6 wk averaging 73.5 mm (> 44.6 mm). Margins even to bayed, appressed, fimbriate to wispy to plumose, hyaline. Aerial mycelium present. Mat at 2 wk sparse, low and thin, silky to downy to cottony to woolly to floccose, with radially plumose, submerged veins, at 6 wk similar, often reticulate-venose-plumose, with dense, submerged plumes, azonate, hyaline to white (pale orange to brownish orange, 5A2½, 6C3 in agar). Reverse at 2 wk coloured, pale orange (5A2, 6B311), at 6 wk unchanged to coloured, brownish orange (5B3-7C4). Not fruiting within 6 wk. Odour nil to , “fragrant” to “other” to “antiseptic” (nil, nondescript, or lemony fungoid, skunky yeasts, fungusy old potatoes, musty, Mr. Clean, or soapy yeasts).
Microscopic characters: Marginal hyphae tubular, straight, thinwalled, 1.7-3.9(-4.7) µm broad, with regular to frequent, simple clamp connections, sparsely to frequently branched, some like dendrohyphidia. Branches mostly opposite clamp connections and often immediately clamped, or variously positioned. Cultures monomitic, generative hyphae in older mat remaining thin-walled, tubular, undifferentiated, smooth, inamyloid, 1.2-4(-5.9) µm broad, with simple clamp connections.
Crystals present among aerial hyphae, polarized, plate-like, 10-12 µm broad, and in agar, nonpolarized, tetrahedral, 5-8 µm broad, single. Submerged hyphae similar to aerial, inamyloid, (1.5-)1.8-5.1(-6.9) µm broad, with simple clamp connections, thin-walled, sometimes with tortuous-branched hyphae 1.8-2.5 µm broad. Conidia lacking.
Growth on PDA: Moderately fast, plates covered in 3 wk, to very slow, plates not covered after 6 wk. Diameter at 2 wk averaging 44.7 mm (19-77), at 6 wk averaging 107.5 mm (> 28 mm). Margins even to bayed, submerged to appressed, fimbriate to wispy to plumose, hyaline. Aerial mycelium present. Mat at 2 wk sparse to dense to moderate, low and thin to average, becoming deep, silky to woolly to plumose, sometimes lacunose, rarely felty, at 6 wk reticulate floccose-woolly, with silky to cottony margins, sometimes lacunose, zonate or azonate. Mat at 2 wk white to cream to pale yellow to orange to pink or brownish (4½B3, 5B2½, 6½C3½, 7A11), deepening (to 4A3, 6½D2, 7A2) plus green (26B1½) at 6 wk. Reverse at 2 wk coloured, yellow to orange to brown (4B4, 5C3, 6A3, 7C3, 8D4), similar at 6 wk (4½A3, 6D4, 7E5). Not fruiting within 6 wk.
Odour + to 3
, “fragrant” to “earthy or musty” to antiseptic (lemony, minty, fruity, with yeasts or fungus, rancid, old potatoes, garbage pail, soapy, cleaner, or alcoholic).
Growth on ML: Fast, plates covered in 2 wk, to slow, plates covered in 6 wk. Diameter at 2 wk averaging 48.7 mm (19.5-85), at 6 wk averaging 127 mm (> 40 mm). Margins even, appressed, fimbriate to wispy, hyaline. Aerial mycelium present. Mat at 2 wk sparse to moderate, low and thin to deep, with silky margins, brushed cottony to woolly to floccose to plumose, with felty disk, sometimes lacunose, at 6 wk silky to woolly to floccose, lacunose, azonate or zonate (in depth and colour). Mat hyaline to white to cream to pale yellow to orange to pink (5A1½-7A1½, 6B2½). Reverse at 2 wk coloured, pale yellow to orange (5A2, 5AB3, 6B3), at 6 wk, yellow to brown to orange (4A3, 5AB3, 5C4, 7D4, radially striate to plumose). Not fruiting within 6 wk. Odour nil to 3+, “fragrant” to “earthy or musty” (nondescript or of coumarin, caraway, rotted cabbage, fungus, yeasts, or heady).
Growing on gymnosperms (including Tsuga). Heterothallic, bipolar (Jackson 1950), nuclear behaviour unknown.
Isolates studied: T-361, T-395, T-402, T-435, T-500, T-557.

Taxon name :

1. Aleurodiscus minnsiae H.S. Jacks., Canadian Journal of Research 28 (1): 67 (1950) [MB#292376]
2. Corticium minnsiae (H.S. Jacks.) Boidin & Lanq., Bulletin de la Société Mycologique de France 99: 275 (1983) [MB#107863]
3. Laeticorticium minnsiae (H.S. Jacks.) Donk, Fungus 26: 17 (1956) [MB#299341]

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Laeticorticium minnsiae (Jacks.) Donk, Fungus 26:17. 1956.

Literature :

Larsen, M.J.; Gilbertson, R.L. 1977. Studies in Laeticorticium (Aphyllophorales, Corticiaceae) and related genera. Norwegian Journal of Botany. 24:99-121

Page number : 105
Description type : Non-original description
Description : Laeticorticium minnsiae (Jacks.) Donk, Fungus 26:17. 1956.
Aleurodiscus minnsiae Jacks., Can. J. Res. ©28:67. 1950.
Basidiocarps biennial, developing in the late summer or fall on underside of small branches on which a sclerotial stage (Fig. 22) appeared on the upper side earlier in the season, not maturing until the following spring or early summer, developing in small coalescing patches uµ to 1 cm diam, adherent, but tending to peel away from substratum in the mature stage when dried; hymenial surface cream white (near 10.0 YR 8/4), soft and very finely tomentose under a 25 x lens; margin abrupt.
Subicular hyphae 2-5 µm diam, clamped, hyaline, thin- to moderately thick-walled, with occasional branching; dendrohyphidia (Fig. 18) abundant, even in immature fruiting bodies in which basidia or probasida are not yet discernible, 2-5 µm diam, often with clamp connections, branched and conspicuously so in some specimens; probasidia (Fig. 19) appearing as variously shaped vesicular bodies, abundant throughout tissue directly adjacent to the subiculum, these often branched or variously contorted; mature basidia (Fig. 20) greatly elongated and contorted, often branched, 100-130 × 8-10 µm, 4-sterigmate, sterigmata 2-3 µm diam at the base and 8-10 long; basidiospores (Fig. 21) 12-15 × 9-11 µm, broadly ellipsoid.
Sclerotial Stage (Fig. 22) – Cups laterally or basally attached on upper side of branches, single or confluent and fused with adjacent cups, 500-900 µmm diam, white to pale buff, sometimes cottony on outer surface; sclerotial bodies single, slightly darker than cup, spherical, slightly flattened apically, projecting hyphae giving a sparsely cottony appearance to the surface, 300-500 µm in diam.
Hyphae of the cup tissue thin- to thickwalled, clamped, hyaline, 2-8 µmm diam; hyphae (Fig. 23) of the sclerotial body very thick-walled in the interior portion, contorted and breaking up into short segments, up to 16 µm diam, with conspicuous swellings and constrictions, thinner walled in tissue around the periphery.
Basidiocarps first appear in the fall as small, sterile patches on the underside of small branches bearing cups with sclerotial bodies on the upper surface. These small patches show abundant well developed dendrohyphidia of typical form although no sign of basidia in any stage of development can be found. Apparently the dendrohyphidia develop rapidly from the inception of the basidiocarp. This is well exemplified by specimen Hansbrough 176 (BPI).

Taxon name :

1. Aleurodiscus minnsiae H.S. Jacks., Canadian Journal of Research 28 (1): 67 (1950) [MB#292376]
2. Corticium minnsiae (H.S. Jacks.) Boidin & Lanq., Bulletin de la Société Mycologique de France 99: 275 (1983) [MB#107863]
3. Laeticorticium minnsiae (H.S. Jacks.) Donk, Fungus 26: 17 (1956) [MB#299341]

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Created: 2011-01-30 03:28:18 CST (-0500) by Noah Siegel (Noah)
Last modified: 2015-07-27 08:55:28 CDT (-0400) by GALL Alain (GALLA-TAHITI)
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