Diplazium petelotii Tardieu. A 1932
- 1. Office of National Science Research, National Science Museum, Technopolis, Khlong 5, 39 Moo 3, Khlong Luang, Pathum Thani, 12120, Thailand. & Puttamon. p @ nsm. or. th; https: // orcid. org / 0000 - 0003 - 0273 - 1889
- 2. Missouri Botanical Garden, P. O. Box 299, St. Louis, Missouri 63166 - 0299, USA and Chengdu Institute of Biology, Chinese Academy of Sciences, P. O. Box 416, Chengdu, Sichuan 610041, China & Libing. Zhang @ mobot. org; https: // orcid. org / 0000 - 0002 - 4905 - 040 X
- 3. Office of National Science Research, National Science Museum, Technopolis, Khlong 5, 39 Moo 3, Khlong Luang, Pathum Thani, 12120, Thailand. & Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand. & bthawees @ googlemail. com; https: // orcid. org / 0009 - 0001 - 5864 - 7208
- 4. Office of National Science Research, National Science Museum, Technopolis, Khlong 5, 39 Moo 3, Khlong Luang, Pathum Thani, 12120, Thailand. & Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand. & Office of National Science Research, National Science Museum, Technopolis, Khlong 5, 39 Moo 3, Khlong Luang, Pathum Thani, 12120, Thailand. & Rossarin. p @ chula. ac. th; https: // orcid. org / 0000 - 0001 - 6798 - 7274 * Corresponding authors: Puttamon. p @ nsm. or. th; Libing. Zhang @ mobot. org & Office of National Science Research, National Science Museum, Technopolis, Khlong 5, 39 Moo 3, Khlong Luang, Pathum Thani, 12120, Thailand.
Description
17. Diplazium petelotii Tardieu (1932: 66). Figs. 21, 22.
Type: VIETNAM. Tonkin, Pételot 542 bis (lectotype P01449498!, designated here; isolectotypes P01449495!, P01449499!).
Plants terrestrial. Stems stout, erect, up to 5 cm diameter, apex scaly; scale up to 12–15 × 1.0– 1.5 mm, linear with long tail apex, concolorous, dark brown, margin toothed. Fronds up to 1.2 m, bipinnate; petioles 54–58 cm, 4.5–5.5 cm diameter, deep green, base scaly, groove above. Laminae 60–62 × 40–50 cm, ovate-oblong in outline, glabrous, papyraceous, deep green; pinnae 8–10 pairs, upper pinnae suddenly becoming smaller upward to form pinnatifid apex, terminal pinna not distinct; lateral pinnae 25–30 cm × 5–7 cm, alternate, oblong, apex long acuminate, middle gradually becoming reduce upward to form pinnatifid apex, stalked; stalk 2–3 cm; pinnules 3.5–4.0 × 1.0– 1.5 cm, oblong, apex acute or round, base obtuse, margin subentire to slightly serrate, sometime lobed at basal pinnules, lobes about ¼ way to midrib; vein free, pinnate; veinlets 2–3 pairs. Sori 2–4 mm, along veinlet, linear, slightly curve, indusiate; indusia linear, thin, persistent. Spore monolete, bilaterally symmetrical, kidney-shaped, 52.84–33.68 × 31.15–26.18 µm; ornamentation smooth.
Thailand: —NORTHERN: Chiang Rai (Mae Kok), Chiang Mai (Doi Suthep), Phitsanulok (Phu Rom Rot).
Distribution: — China and Vietnam.
Ecology: — On mountain slope in dense evergreen forests at 1,000–1,300 m elev.
Specimen examine:— THAILAND. Chiang Mai, Doi Suthep, S. Chodchoy 62 (KU). VIETNAM. Lao Cai, Van Ban District, H. van der Werff et al. 17346 (L); Tonkin, Pételot 542 (P).
Note: — We found three duplicates of Pételot 542 bis at P that collected by Pételot from Tonkin, Vietnam. We selected P01449498! as the lectotype because it is the most complete specimen.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- P
- Family
- Athyriaceae
- Genus
- Diplazium
- Kingdom
- Plantae
- Material sample ID
- P01449498 , P01449498, P01449495, P01449499
- Order
- Polypodiales
- Phylum
- Tracheophyta
- Scientific name authorship
- Tardieu. A
- Species
- petelotii
- Taxon rank
- species
- Type status
- lectotype
- Taxonomic concept label
- Diplazium petelotii A, 1932 sec. Pongkai, Zhang, Boonkerd & Pollawatn, 2023
References
- Tardieu, M. L. (1932) Les Aspleniacees du Tonkin. Imp. H. Basuyau, Toulouse. 67 pp.