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Nectria chaetopsinae-penicillatae Samuels 1985

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Samuels
Samuels
1985
24
ICN
Nectria chaetopsinae-penicillatae Samuels 1985
NZ
species
Nectria chaetopsinae-penicillatae

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chaetopsinae-penicillatae

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Nectria chaetopsinae-penicillatae Samuels 1985

ADDITIONAL SPECIMENS EXAMINED. ECUADOR: Prov. Pichincha, 24 km above Toachi on the Toachi-Palo Quemado Rd., elev. ca. 3400 ft., on twig, K.P. Dumont (Dumont-EC 609), S.E. Carpenter, P. Buritica, 19 Jul 1975 (NY, PDD 44233). JAMAICA: St. Andrew's Parish along Wag Water River, near source, Holywell Recreation area, elev. 2800-3000', on bark, R.P. Korf, J.R. Dixon, K P. Dumont, R .W. Erb, D.H. Pfister, D.R. Reynolds, A.Y. Rossman & G.J. Samuels, 11 Jan 1971 (NY: CUP-MJ 797). NEW ZEALAND: Waitemata City, Waitakere Ranges, Piha Rd., Marguerite Track, on sheathing base of Rhopalostylis sapida G.J. Samuels (80-54) & B. Kendrick, 14 Mar 1980 (PDD 44234, PDD Culture Collection 7802).
Conidiophores scattered, mononematous, erect, setose, unbranched, septate and appearing segmented; red-brown, becoming yellow in 100% lactic acid; walls 2-3 µm thick, 350-370 µm long, tapering from 15-25 µm wide base to ca. 10 µm wide at tip, bearing a single, terminal, colorless, slimy head of conidia on a ca. 25 µm wide penicillus of phialides. Penicillus biseriate, 2-4 primary metulae arising from tip of conidiophore; primary metulae, cylindrical, 10-15 µm long x ca. 4 µm wide, each bearing 2-5 secondary metulae at its tip; secondary metulae cylindrical, 8-10 µm long x ca. 4 µm wide, each bearing ca. 4 phialides. Phialides cylindrical to ampulliform, 10-15 x 3-4 µm wide, with pronounced periclinal thickening at the tip and a flared collarette. Metulae and phialides thin-walled and non-pigmented. Conidia elliptic to subfusoid, tips rounded to subacute, base rounded with a flat, protuberant abscission scar, (8.0-)9.4-22.9(-26.0) x (5.0-)5.9-10.3(-11.0) µm, unicellular, hyaline. Sterile setae present, similar to conidiophores. Perithecia solitary, scattered, superficial, seated on an inconspicuous, non-erumpent basal stroma; red or red above and yellow below, becoming uniformly red in 3% KOH and yellow in 100% lactic acid, pyriform with an acute apex, smooth, not collapsing when dry, (260-)288-345 µm high x (220-)228-260 µm wide. Cells at surface of perithecial wall textura epidermoidea, adjacent cells joined by a pore, walls 1.5-2.0 µm thick. Perithecial wall ca. 15 µm wide, cells at surface, when seen in section, with flat to circular, 2-5 µm wide lumens, walls 1.5-2.0 µm thick, cells becoming progressively more flattened and thin-walled toward the perithecial locule; perithecial apex comprising palisade of parallel, hyphal elements with narrow lumens and rounded tips, walls 1-2 µm thick, elements becoming progressively thinner and more thin-walled toward the ostiolar canal, merging with periphyses. Asci clavate, (80-)93-114(-120) x (14-)18-22(-23) µm, apex simple, 3-8-spored, sometimes with 4 normal spores and 4 aborted spores, ascospores biseriate, completely filling each ascus. Ascospores fusiform, (19.0-)24.8-41.9(-48.0) x (5.5-)5.8-9.8(-11.0) µm, equally 2-celled, not constricted at the septum, with ridge like striations, hyaline.
CHARACTERISTICS IN CULTURE. CMD: 1.5 cm diam., flat, transparent, scant, aerial mycelium white, colony white to pale Sienna (Rayner 8), reverse concolorous, some brown pigment spreading into the medium. PDA: 1 cm diam, flat; scant, aerial mycelium scant, white, surface of colony Sienna (Rayner 8), reverse concolorous, Sienna pigment spreading into the medium. OA: 1 cm diam, as PDA but pigmentation less intense, pale red-brown pigment spreading through the medium. Conidial production abundant on all media. Conidiophores scattered, mononematous, unbranched, stiff, erect, red-brown, 150-230 µm long with base ca.10 µm wide, wall ca. 2 µ thick; a single, compact penicillus formed at the tip of each conidiophore. Penicillus biseriate, ca 4 primary metulae arising from the tip of each conidiophore; primary metulae cylindrical, 10-15 µm long x ca. 5 µm wide, each bearing 2-3 secondary metulae or 2-4 phialides; secondary metulae cylindrical, 10-15 long x ca. 5 µm wide, each bearing 2-4 phialides. Phialides cylindrical, 12-16 x 4-5 µm, with periclinal thickening at the tip and a flared, sometimes funnel-shaped collarette. Phialides also arising from vegetative hyphae, 12-30 µm long x 2-4 µm wide, slight periclinal thickening at tip; collarette flared, often cupulate. Conidia + elliptical with apex round or acute and papillate, base round or with a protuberant, flat basal abscission scar, (13.0-)17.6-22.3(-25.0) x (6.0-)6.8-8.2 µm, unicellular, smooth, hyaline, produced in basipetal succession and held in a colorless drop of slime at the tip of each conidiophore and forming a continuous layer of white slime on surface of colony.
KNOWN DISTRIBUTION. Ecuador, Jamaica, New Zealand.
HABITAT. Bark of Beilschmiedia tawa (A. Cunn.) Kirk and sheathing base of palm frond ( Rhopalostylis sapida Wendl. & Drude).

Nectria chaetopsinae similis, sed perithecia (266-)288-345 x (220-)228-260 µm; asci (80-)93-114(-120) x (14-)18-22(-23) µm, apice simplices; ascosporae fusiformes, (19-)24.8-41.9 (-48.0) x (5.5-)5.8-9.8 (-11.0) µm, crasse striatae. In corticibus Beilschmiedia tawa. Holotypus. PDD 44235. Status anamorphosis. Chaetopsina penicillata Samuels sp. nov.

Setae singularitim dispersae, erectae, rectae, septatae, laeves, crasse tunicatae; rubro brunneae, in acidis lactico lutescens, 350-370 µm longae, superne ca. 10 µm crassae, basi 15-25 µm crassi. Phialides e apice gerentes, in penicilli ordinati. Penicilli biverticillati, 1º metulae 10-15 x 4 µm, 2º metulae 8-10 ca. 4 µm; phialides cylindricae vel ampulliformes, 10-15 x 3-4 µm. Conidia ellipticae vel subfusiformes, (8.0-)9.4-22.9(-26.0) x (5.0-)5.9-10.3 (-11.0) µm. In ramunculo. Holotypus. Dumont-EC 609: NY. Status teleomorphosus. Nectria chaetopsinae-penicillatae Samuels

HOLOTYPE. NEW ZEALAND: Auckland, Waitemata City, Waitakere Ranges Piha Rd., Marguerite Track, on bark of Beilschmiedia tawa, G.J Samuels (77 -21), 21 Mar 1977 (PDD 44235, PDD Culture Collection 7801, ATCC 56205).

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Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels (1985)
Nectria chaetopsinae-penicillatae Samuels 1985
Nectria chaetopsinae-penicillatae Samuels (1985)

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Nectria chaetopsinae-penicillatae Samuels 1985
Ecuador
Nectria chaetopsinae-penicillatae Samuels 1985
New Zealand
Auckland

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1cb19582-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
12 February 2015
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