Nectria multiloculata Samuels 1978
Details
Nectria multiloculata Samuels, New Zealand J. Bot. 16 78 (1978)
Nomenclature
Samuels
Samuels
1978
78
ICN
Nectria multiloculata Samuels 1978
NZ holotype
species
Nectria multiloculata
Classification
Associations
Descriptions
Nectria multiloculata Samuels 1978
Additional specimens examined: Data as holotype, Marguerite Track, on leaf of Gahnia sp., Dingley & Haydon, 21 Aug. 1974 (PDD 34055, Samuels 74-109); Little Barrier Island, track to summit of Mt Hauturu, on dead leaves of Astelia sp., Samuels 76-8, 22 Feb. 1976 (PDD 34940).
Mycelium not apparent. Perithecia solitary or in groups of a few, seated directly on the substrate; orange to brown; glabrous; globose, 340-400 µm diam., collabent or not collapsing when dry; yellow in 3% potassium hydroxide, becoming orange in lactophenol, reaction reversible.Perithecial wall 60-100 µm wide. Surface view: textura angularis, cells 10-15 µm in greatest dimension, walls c. 1 µm thick. Longitudinal section: outer region 50-90 µm wide, textura angularis, cells 7-15 µm in greatest dimension, walls c. 1 µm thick; inner region 10-15µm thick, cells fusiform. Perithecial papilla lacking, ostiolar canal periphysate. Asci clavate to fusiform, 100-120 x (7-) 14-17µm, 8-spored; apices rounded, simple; bases pointed, ascospores biseriate, forming throughout the length. Ascospores fusiform, 50-70 (-80) x 6-7 (-8) µm, (4-) 15-20-septate when discharged from asci, a few longitudinal septa may form, striate; not constricted at the septa; hyaline.
Characteristics in culture: Colony characteristics: Colony diameter: CMD, 2-3 cm; ME, just beginning to grow away from the inoculum; PDA 1-1.5 cm. Aerial mycelium lacking or sparse on CMD; acute, rope-like strands forming on ME and PDA. Colonies white on CMD, white to tan on ME and PDA. Ferrugineous pigment spreading into all three media. Non-conidial or conidia forming within 2-3 months on CMD and PDA; none on ME. Conidiophores arising from the aerial mycelium, bearing a single phialide, unbranched, 1-2-septate, 40-50 µm long, 3-4 µm wide basally, subtending hypha c. 2 µm wide. Phialides 35-40 (-45) µm long, 1.5-2 µm wide at the unflared tip. Conida cylindrical, (1-) 3-septate, 1-septate: 21-28 x 3-4µm, 3-septate: 21-35 x 3-4 µem, hyaline with or without a flattened, protuberant, basal, abscission scar, held in a drop of hyaline liquid.
Characteristics in culture: Colony characteristics: Colony diameter: CMD, 2-3 cm; ME, just beginning to grow away from the inoculum; PDA 1-1.5 cm. Aerial mycelium lacking or sparse on CMD; acute, rope-like strands forming on ME and PDA. Colonies white on CMD, white to tan on ME and PDA. Ferrugineous pigment spreading into all three media. Non-conidial or conidia forming within 2-3 months on CMD and PDA; none on ME. Conidiophores arising from the aerial mycelium, bearing a single phialide, unbranched, 1-2-septate, 40-50 µm long, 3-4 µm wide basally, subtending hypha c. 2 µm wide. Phialides 35-40 (-45) µm long, 1.5-2 µm wide at the unflared tip. Conida cylindrical, (1-) 3-septate, 1-septate: 21-28 x 3-4µm, 3-septate: 21-35 x 3-4 µem, hyaline with or without a flattened, protuberant, basal, abscission scar, held in a drop of hyaline liquid.
Habitat: On decaying leaves of monocotyledons.
Perithecia 340-400 µm diametro, globosa, aurantiaca vel brunnea; asci clavati vel fusiformes, 100-120 x 14-17 µm, apice simplici; ascosporae 15-20 septatae, fusiformes, hyalinae striatae. HOLOTYPUS: PDD 31786. Conidial state: Cylindrocarpon sp.
Etymology of the specific epithet: Refers to the phragmosporous ascospores.
Holotype: NEW ZEALAND: Auckland, Waitemata County, Waitakere Ranges, Lucy Cranwell Track, vic. Kitakiki Stream, on dead leaf of Astelia sp., Dingley et al., 30 May 1973 (PDD 31786, Samuels 73-98).
Taxonomic concepts
Nectria multiloculata Samuels 1978
Nectria multiloculata Samuels 1978
Global name resources
Collections
Notes
typification
NEW ZEALAND: Auckland, Waitemata County, Waitakere Ranges, Lucy Cranwell Track, vic. Kitakiki Stream, on dead leaf of Astelia sp., Dingley et al, 30 May 1973 (PDD 31786, Samuels 73-98).
Metadata
1cb195c1-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
3 July 2023