Whitton, S.R.; McKenzie, E.H.C.; Hyde, K.D. 2000: Dictyochaeta and Dictyochaetopsis species from the Pandanaceae. Fungal Diversity 4: 133-158.
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Details
Whitton, S.R.; McKenzie, E.H.C.; Hyde, K.D. 2000: Dictyochaeta and Dictyochaetopsis species from the Pandanaceae. Fungal Diversity 4: 133-158.
Article
Descriptions
7. Dictyochaeta botulispora (S. Hughes and W.B. Kendr.) Whitton, McKenzie and K.D. Hyde, comb. nov.
Codinaea botulispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 335 (1968).
Codinaea botulispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 335 (1968).
8. Dictyochaeta brevisetula (S. Hughes and W.B. Kendr.) Whitton, McKenzie and K.D. Hyde, comb. nov.
Codinaea brevisetula S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 138 (1968).
Codinaea brevisetula S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 138 (1968).
21. Dictyochaeta longispora (S. Hughes and W.B. Kendr.) Whitton, McKenzie and K.D. Hyde, comb. nov.
Codinaea longispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 349 (1968).
Codinaea longispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 349 (1968).
27. Dictyochaeta obesispora (S. Hughes and W.B. Kendr.) Whitton, McKenzie and K.D. Hyde, comb. nov.
Codinaea obesispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 351(1968).
Codinaea obesispora S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 351(1968).
32. Dictyochaeta setosa (S. Hughes and W.B. Kendr.) Whitton, McKenzie and K.D. Hyde, comb. nov.
Codinaea setosa S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 360 (1968).
Codinaea setosa S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 360 (1968).
Material examined: SEYCHELLES, Mahé, La Reserve, on decaying leaves of Pandanus seychellarum, 31 Jul. 1996, K.D. Hyde [HKU(M) 4920]; Mahé, Congo Rouge, on decaying leaves of P. seychellarum, 2 Aug. 1996, K.D. Hyde [HKU(M) 4919]; ibid. [HKU(M) 4925].
37. Dictyochaeta vulgaris (S. Hughes and W.B. Kendr.) Whitton, McKenzie nd K.D. Hyde, comb. nov.
Codinaea vulgaris S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 367 (1968). Conidiophores 143-397 µm long, 6-7 µm wide towards the base, 11-23 septate. Conidia 13-22 x 3-5 µm. Setulae, often setulae at the broader end of the conidia are slightly longer than those at the narrower end, 2-5 µm and 1.5-2.5 µm long, respectively.
Codinaea vulgaris S. Hughes and W.B. Kendr., New Zealand Journal of Botany 6: 367 (1968). Conidiophores 143-397 µm long, 6-7 µm wide towards the base, 11-23 septate. Conidia 13-22 x 3-5 µm. Setulae, often setulae at the broader end of the conidia are slightly longer than those at the narrower end, 2-5 µm and 1.5-2.5 µm long, respectively.
Known distribution: New Zealand (Hughes and Kendrick, 1968), Seychelles (this paper).
Habitat: Known to inhabit decaying leaves of Nothofagus solandri var. cliffortioides, N. truncata, Pandanus seychellarum, Quintinia serrata, Rubus sp., Weinmannia racemosa and rotten wood.
Notes: The present specimens are characterised by polyphialidic, percurrent conidiophores with distinct collarettes, no setae, and aseptate conidia with short (< 6 µm) setulae at both ends. The conidia of D. appiculata (Matsush.) Aramb. and Cabello have rudimentary setulae, and in D. tikliferi the conidia are broader (20-25 x 10-12.5 µm) (Bhat and Sutton, 1985; Matsushima, 1975). The current specimens also resemble D. parva (conidia 11-17 x 2.5-3.1 µm) and D. vulgaris (conidia 17-23 x 2-2.7 µm) which are morphologically similar, differing primarily in conidial dimensions. Based on morphology and conidial dimensions these specimens are best treated as D. vulgaris.
Identification keys
Species of Dictyochaeta described since 1991, or not included in the key of Kuthubutheen and Nawawi (1991e).
2
Conidia not filiform
Conidia filiform, aseptate, curved, 20-25 x 1 µm; conidiophores 40-130 µm long; setae always sterile, 275-300 µm long
4
Conidia cylindrical, aseptate, asetulate, 4.8-7.2 x 1.1-1.5 µm; setae 90-145 µm long; conidiophores 32-59 µm long
Conidia cylindrical, 1-septate, asetulate, 12-18 x 1.8 µm; setae 35-55 µm long; conidiophores 3.5-18 µm long
6
Conidia falcate, aseptate, one setula at each end of conidium, 13-15 x 1.5-2 µm; setae up to 480 µm long; conidiophores up to 90 µm long; conidiogenous cells usually monophialidic
Conidia falcate, aseptate, asetulate, 6-9 x 1.8-2 µm; setae up to 120 µm long; conidiophores up to 30 µm long
8
Conidia aseptate, no rudimentary setulae
Conidia falcate, (0-)1(-2) septate, one rudimentary setula at the apex, base acute, 17-23 x 2.5-3 µm; conidiophores 50-110 µm long
9
Conidia falcate, both ends attenuated and obtuse
Conidia fusoid, base acute, apex obtuse, 5.5-9 x 0.6-1 µm; conidiophores 15-75 µm long, sometimes branched
10
Conidia 24-32 x 3-4 µm; conidiophores 70-100 µm long
Conidia 15-21.5 x 1.2-2 µm; conidiophores 155-310 µm long
11
Conidiogenous cells with funnel-shaped collarette; conidia otherwise
Conidiogenous cells with cylindrical collarette; conidia broadly ellipsoid, aseptate, 6.5-10.5 x 6-8 µm; conidiophores up to 160 µm long, apex coarsely verrucose
13
Conidia with variable number of setulae at each end, irregularly ellipsoid, aseptate, 14-18.5 x 5-6.5 µm; conidiophores 365-445 µm long
Conidia with one apical setula and a fringe of basal setulae, broadly ellipsoid, aseptate, 14-19.5 x 8-11 µm; conidiophores 310-550 µm long
14
Conidia reniform, both ends rounded, aseptate, 6-8.5 x 3-4.5 µm; conidiophores 95-220 µm long
Conidia ellipsoid to obclavate, base obtuse to truncate, apex acute, aseptate, 7.5-9.5 x 3-5 µm; conidiophores 90-130 µm long
Dictyochaetopsis
2
Conidia with a single, simple setula at each end
Conidia with a single, bifid setula at each end, aseptate, falcate, 12.5-14.5 x 2.7-3.5 µm; conidiophores 250-340 µm long; conidiogenous cells monophialidic with funnel-shaped collarettes
3
Conidia aseptate
Conidia 1-septate, falcate, 14-17 x 1.8-2.2 µm, setulae 11-13 µm long; conidiophores up to 130 µm long; conidiogenous cells polyphialidic, collarettes funnel-shaped
4
Lateral phialides not arising from bulbous cells
Lateral phialides arising from distinct bulbous cells; conidia 18-23.5 x 2-3 µm, setulae 8.5-13 µm; conidiophores up to 200 µm long; conidiogenous cells mono- or polyphialidic, collarettes funnel-shaped
5
Lateral phialides not arising in clumps nor encircling the conidiophore
Lateral phialides forming clumps which encircle the conidiophore; conidia 12-16 x 1.5-2.5 µm, setulae 7-12 µm; conidiophores up to 300 µm long; conidiogenous cells polyphialidic, collarettes funnel-shaped
6
Setae, conidiophores and lateral branches monophialidic
Setae, conidiophores and lateral branches polyphialidic; conidia falcate, 13-19 x 1.8-2.5 µm, setulae 4-9 µm; conidiophores up to 220 µm long; collarettes funnel-shaped
7
Long, sterile, lateral branches lacking; conidia falcate, 16.5-18 x 3.5-4.5 µm, setulae up to 9 µm; conidiophores 50-250 µm long; collarettes funnel-shaped
Setiform conidiophores with long, sterile lateral branches; conidia falcate, 14.5-16.5 x 2-2.7 µm, setulae up to 11 µm; conidiophores 210-475 µm long; collarettes funnel-shaped
9
Setae up to 350 µm long, apices fertile; collarettes cylindrical; conidia cylindrical, 8-12 x 1.5-2.2 µm
Setae up to 110 µm long, sterile, with swollen and rounded apices; collarettes funnel-shaped; conidia acerose, 10.5-15.5 x 1.5-2 µm
11
Conidia 2-3 septate, base obtuse, tapering to an acute and hooked apex, 30-45 x 1-1.5 µm; setae up to 220 µm long
Conidia 3-septate, 16.2 x 1.8-2.3 µm
Camposporium
3
Conidia 3–14-septate, 21–72 x 3.5–7μm, cylindrical, dark brown
Conidia 6–12-septate, 48–108 x 3–4 μm, attenuated towards the apex, hyaline
6
Conidial appendage 1–3 branched, 1–2-septate, up to 60 μm long; Conidia 8–15 septate, 80–112 x 6.4–9.6 μm
Conidial appendage 2–4 branched, aseptate, up to 36 μm long; Conidia 7–11-septate, 42.5–70 x 5–7.5 μm
7
Single apical appendage aseptate, 0.5–1.5 μm; Conidia hyaline, 2–6-septate, 20–75 x 3–5 μm
Single apical appendage septate
8
Conidia pale brown to brown
Conidia hyaline, 24.7–44 x 4.5–6.5 μm, 5–10-septate; Appendage 33.5–80 x 0.5–1 μm
9
Conidia 9–13-septate, 77.5–100 x 7.5–11 μm; with or without an appendage up to 65 x 1.5–2.5 μm
Conidia 11–16-septate, 105–128 x 8.5–11 μm; with or without an appendage up to 45 x 1.5–2 μm
11
Conidia 4–10 septate, 50–150 x 13–17 μm; with or without 1–2-septate appendages, up to 60 μm long
Conidia 8–11-septate, 68–115 x 13.5–19 μm; 2–3 divergent apical appendages, aseptate, 17–40 x 1.5–2.8 μm
12
Conidia > 6 μm wide
Conidia 28–45 x 3.5–4.5 μm; with (0–)1–3 divergent, apical, aseptate appendages
13
Conidia < 45 μm long
Conidia 45–90 x 7–11 μm, 4–14-septate; with 1–3 divergent, apical, aseptate appendages
14
Conidia 32.5–44 x 7.5–8.5 μm, 5–7-septate; with 1–4 divergent, apical, aseptate appendages
Conidia 26–36 x 7–9 μm; with 1–2 divergent, apical, aseptate appendages
Cited scientific names
- Chaetosphaeria dingleyae S. Hughes, W.B. Kendr. & Shoemaker 1968
- Chaetosphaeria pulchriseta S. Hughes, W.B. Kendr. & Shoemaker 1968
- Dictyochaeta australiensis (B. Sutton) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta botulispora (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta brevisetula (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta britannica (M.B. Ellis) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta longispora (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta obesispora (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta setosa (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
- Dictyochaeta vulgaris (S. Hughes & W.B. Kendr.) Whitton, McKenzie & K.D. Hyde 2000
Metadata
1cb0feff-36b9-11d5-9548-00d0592d548c
reference
Names_Fungi
18 March 2001
18 April 2001
