Platanthera linzhiensis X. H. Jin, J. W. Li & D. L. Lin, sp. nov.
- 1. State Key Laboratory of Plant Diversity and Prominent Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China & China National Botanical Garden, Beijing, 100093, China & University of Chinese Academy of Sciences, Beijing, 100093, China
- 2. State Key Laboratory of Plant Diversity and Prominent Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China & China National Botanical Garden, Beijing, 100093, China
- 3. Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 666303, China
Description
Platanthera linzhiensis X.H. Jin, J.W. Li & D.L. Lin, sp. nov.
Type: — CHINA. Xizang Autonomous Region, Linzhi City, Motuo County, alpine conifer forests of Abies, elev. 3600 m, 9 August 2023, Xiaohua Jin, Jianwu Li, Dongliang Lin, Chao Ye & Haixia Wen 41207 (holotype PE!).
Diagnosis: — Platanthera linzhiensis is similar to P. uniformis, but differs from it by having a yellowish green lip, yellow spur nearly as long as ovary, connective obtuse- truncate and not protruding from anther, column lateral appendages ovate to oblong and slightly shorter than anther.
Description: —Terrestrial herb, plants 10 cm tall. Rootstocks cylindric, short and stout, ca. 3 mm in diameter. Stem erect, terete, with 2 tubular membranous sheaths at the base. Leaf 1, basal at stem suborbicular, ca. 1.7 × 1.4 cm, basally contracted into a petiole-like amplexicaul sheath, apex obtuse-rounded, adaxially green, with bottle-green reticulate veins, abaxially pale green, midvein prominent; foliaceous sterile bracts 3, long elliptic, 0.7–1.0 × 0.1–0.3 cm, apex acute. Inflorescence densely 14-flowered, secund; rachis 4 cm long; floral bracts oblong-ovate, longer than ovary, ca. 7 × 2.5 mm, apex acute. Flowers greenish white; ovary twisted, slightly arching, fusiform, short and stout, ca. 5 mm long including pedicel. Dorsal sepal strap-like, ca. 5 × 1 mm, 1-veined, abaxial slightly yellowish-green, apex obtuse; lateral sepals lanceolate, ca. 4 × 1 mm, 1-veined, apex obtuse, abaxial slightly yellowish-green, lateral margins slightly erect. Petals ovate, ca. 5 × 2 mm, slightly green near base, 1-veined, apex obtuse, slightly reflexed; lip yellowish green, lanceolate, ca. 5 × 1.5 mm, decurved, green dilated at base, apex obtuse; spur urn-shaped, yellow, nearly as long as ovary, ca. 4 × 2mm, apex obtuse-rounded, contracted at neck. Column short, ca. 2 mm long; anther erect, 2-locular, obovate, ca. 1mm long, parallel; connective distinct, located at anther apex, apex obtuse-rounded, not protruding from anther; rostellum very small; lateral appendages ovate to oblong; pollinia obovate, ca. 0.8 × 0.4 mm, with short caudicle; viscidia elliptic, ca. 0.8 × 0.2 mm; stigma 1, strongly raised below the rostellum.
Etymology:— The name “ linzhiensis ” refers to the type locality of the new species, Xizang, China.
Distribution and habitat:— The new species is only distributed Motuo County Linzhi City, Xizang Autonomous Region, China, grows under the subtropical alpine conifer forests of Abies.
Phenology:— Flowering from August to September.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- PE
- Event date
- 2023-08-09
- Family
- Orchidaceae
- Genus
- Platanthera
- Kingdom
- Plantae
- Order
- Asparagales
- Phylum
- Tracheophyta
- Scientific name authorship
- X. H. Jin, J. W. Li & D. L. Lin
- Species
- linzhiensis
- Taxonomic status
- sp. nov.
- Taxon rank
- species
- Type status
- holotype
- Verbatim event date
- 2023-08-09
- Taxonomic concept label
- Platanthera linzhiensis Lin, Li & Jin, 2024