identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
6574177CCBDE569C9B18EE49FDE804A1.text	6574177CCBDE569C9B18EE49FDE804A1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Angiopteris weimingii L. J. Jiang & Z. R. He 2026	<div><p>Angiopteris weimingii L. J. Jiang &amp; Z. R. He sp. nov.</p><p>Fig. 2</p><p>Type.</p><p>China • Yunnan: Lvchun County, Banpo Township, 26 May 2025, L. J. Jiang &amp; J. P. Shi JLJ - 09-0359 (Holotype: PYU JLJ- 250526!; Isotype: HITBC C 090370!) .</p><p>Diagnosis.</p><p>Angiopteris weimingii (endemic to Yunnan) is most similar morphologically to A. itoi (endemic to Taiwan), but differs in the following key characters: taller plants (up to 2.5 m), pinnule apex with a short caudate tip (ca. 1 cm), sori positioned 2 mm from margin, mature spore color is yellow and possess a densely verrucate ornamentation. In contrast, A. itoi is shorter (ca. 1.5 m), pinnule apex with a long caudate tip (2–4 cm), mature spore color is white with clavate-echinate ornamentation. Phylogenetic analysis revealed that A. weimingii is most closely related to A. involuta, yet A. weimingii is notably larger (often exceeding 1.2 m), with a smooth stipe and retrograde false veins. However, A. involuta is typically under 1.2 m, has tuberculate stipes, lacks retrograde false veins, and possesses consistently enrolled fertile pinnae. Comparative morphology with related species is provided in Table 2.</p><p>Description.</p><p>Plants terrestrial, 120–250 cm tall. Rhizome stout, erect. Fronds clustered, once pinnate to bipinnate. Stipes 45–140 cm long, terete, 1–1.5 cm in diameter, smooth; densely covered with brown filamentous hairs when young (caducous), sparsely scaly with black, narrowly lanceolate scales (ca. 0.05–0.1 × 0.5–2 cm). Lamina up to 250 cm long. Pinnae once pinnate to bipinnate, pinna bases truncate or rounded, rarely cordate, margins crenate – serrulate and undulate, pinnule apex acute with a short caudate tip (ca. 1 cm). Venation: Veins simple or forked, bearing acroscopic false veins (ca. 0.5–2 mm long, never extending to sori position). Texture herbaceous, adaxially green, abaxially pale green when dry. Sori linear, 0.2–1.5 cm long, composed of 12–120 sporangia, positioned 2 mm from margin. Spores yellow, trilete; exospores densely tuberculate. The spore matures from May to July.</p><p>Etymology.</p><p>The specific epithet “ weimingii ” is designated in honor of Prof. Wei-Ming Chu, an esteemed Chinese pteridologist, in recognition of his contributions to the genus Angiopteris . The Chinese name is suggested as ‘ 维明观音座莲 (wei ming guan yin zuo lian) ’.</p><p>Distribution and habitat.</p><p>Endemic to southern Yunnan (Lvchun County) and grows in rubber plantations understory along streams, alt. 270–350 m.</p><p>Conservation status.</p><p>The species inhabits the understory of rubber plantations, where anthropogenic disturbance is extremely severe. Only one population (consisting of approximately 30 plants) is found in the wild. In accordance with the IUCN (2024) standards, the species is tentatively designated as Critically Endangered (CR), and further investigations in similar forests are still needed.</p><p>Additional specimens examined.</p><p>China • Yunnan: Lvchun County, Banpo Township, 26 June 2025, JLJ-09-0358-2 (HITBC!); JLJ-25-0612 (HITBC!) .</p><p>Keys to the species with fertile fronds in both once-pinnate and bipinnate laminae of Angiopteris in China and surrounding regions</p></div>	https://treatment.plazi.org/id/6574177CCBDE569C9B18EE49FDE804A1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Jiang, Li-Ju;Zhao, Jing;Ma, Dan-Ni;Li, Jian-Wu;Zhou, Xin-Mao;Wang, Jia-Guan;He, Zhao-Rong	Jiang, Li-Ju, Zhao, Jing, Ma, Dan-Ni, Li, Jian-Wu, Zhou, Xin-Mao, Wang, Jia-Guan, He, Zhao-Rong (2026): Angiopteris weimingii (Marattiaceae): a new endangered fern species from southern Yunnan, China, revealed by morphology and phylogeny. PhytoKeys 270: 191-202, DOI: 10.3897/phytokeys.270.179399
