identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
A1C87FDBA8DA58F39BFDD533E17A84DB.text	A1C87FDBA8DA58F39BFDD533E17A84DB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Impatiens longcanggouensis Q. Luo 2026	<div><p>Impatiens longcanggouensis Q. Luo sp. nov.</p><p>Figs 1, 2, 3</p><p>Diagnosis.</p><p>Impatiens longcanggouensis is morphologically similar to I. recurvicornis, but is readily distinguished by the following combination of characters: leaf margin shallowly arcuate-serrate (vs. serrulate); abaxial leaf surface usually purplish-red (vs. pale green); inflorescence commonly two-flowered (vs. one-flowered); bracts lanceolate, 2–2.5 mm long (vs. ovate, 3–4 mm long); flowers 1.2–1.8 cm long (vs. 3–4 cm long); dorsal petal 6–8 mm in diameter, with two erect, stout rostella along the abaxial mid-vein (vs. dorsal petal ca. 13 mm in diameter with a beaked apex); lower sepal narrowly funnel-form with a spreading mouth (vs. navicular with an oblique mouth); and capsule clavate (vs. linear).</p><p>Type.</p><p>China • Sichuan Province, Yinjing County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=102.89681&amp;materialsCitation.latitude=29.611654" title="Search Plazi for locations around (long 102.89681/lat 29.611654)">Longcanggou National Forest Park</a>, 1,540 m above sea level (a. s. l.), 29°36'41.95088"N, 102°53'48.53844"E, 8 August 2025, Luo Qiang 25080806 (holotype: PE; isotypes: XIAS) . • Same locality, 1,410 m a. s. l., 29°37'38.14587"N, 102°53'15.16814"E, 28 August 2025, Luo Qiang 25082801 (paratype: XIAS) .</p><p>Morphology.</p><p>Annual herb, 30–60 cm tall, subglabrous. Stems erect, lower portion exposed, upper portion branched. Leaves alternate; lower leaves with petioles up to 3 cm; blades membranous, lanceolate or ovate-lanceolate, 4–16 cm long, 1–3.5 (– 4) cm wide; apex long-acuminate or caudate; base cuneate in lower leaves, subtruncate in upper leaves; shallowly arcuate-serrate with mucronate teeth; lateral veins 6–9 pairs; adaxial surface green or dark green, hispid; abaxial surface usually purplish-red, rarely greyish-green. Inflorescences in upper leaf axils, 4–10 cm long, filiform, spreading or curved, often puberulent, two-flowered. Pedicels 4–13 mm long, with a single bract at the base; bracts lanceolate, 2–2.5 mm long, apex beaked, persistent. Flowers white or faintly pinkish, 1.2–1.8 cm long. Lateral sepals 2, green or purplish-red and spotted with purplish-red, ovate or triangular-ovate, 2.5–3.5 mm long, apex beaked or acute, mid-vein sometimes marginal. Dorsal petal suborbicular, 6–8 mm in diameter, emarginate at both ends, with a thickened dorsal mid-rib bearing two erect, stout rostella. Lateral united petals 1–1.5 cm long, subclawed, two-lobed; basal lobes ovate or broadly ovate, ca. 2.5 mm long; distal lobes rhomboid or oblong-dolabriform, 0.8–1.2 cm long, 4–6 mm wide, apically truncated or retuse with a small mucro, dorsal auricle reflexed. Lower sepal 1.2–1.5 cm long, narrowly funnel-shaped, mouth spreading, apex obtuse-acuminate, base gradually narrowed into an incurved long spur. Filaments linear; anthers acute. Ovary linear, erect, five-angled, apex acuminate. Capsule clavate, 1.5–2.3 cm long, seeds 2 to 3.</p><p>Palynology.</p><p>(Fig. 3 A – D) Pollen grains four-colpate, oblate-spheroidal or subprolate in equatorial view, subcircular in polar view. Pollen size (equatorial view): 34.83 (30.96–36.77) × 21.28 (17.44–28.80) μm. Exine reticulate; in polar view, lumina smaller with shallower muri, lacking or bearing sparse granules; in equatorial view, lumina uniformly distributed, larger with deeper muri, sparsely covered with irregular granules.</p><p>Seed micromorphology.</p><p>(Fig. 3 E, F) Seeds ovoid or ellipsoid, bilaterally compressed, 3.22 (3.02–3.46) × 2.29 (1.98–2.51) mm. Seed coat surface reticulate, with most lumina flat; some testa cells showing slightly raised anticlinal walls and slightly concave outer periclinal walls. The entire surface is irregularly covered with small granules.</p><p>Etymology.</p><p>The epithet longcanggouensis refers to the type locality: Longcanggou Yinjing County, Sichuan Province, China. The new species is named ‘ 龙苍沟凤仙花’ in Chinese.</p><p>Phenology.</p><p>Flowering from August to September; fruiting from August to October.</p><p>Habitat and distribution.</p><p>Impatiens longcanggouensis is restricted to sparse forests at elevations of 1100–2050 m in Longcanggou Town, Niubeishan Town, Siping Township and Xinjian Township, Yingjing County, Sichuan Province, China (Fig. 4).</p><p>Conservation status.</p><p>Impatiens longcanggouensis is preliminarily assessed as Near Threatened (NT) following the IUCN Red List Categories and Criteria (version 3.1). It is endemic to Yingjing County, Sichuan, with an estimated Extent of Occurrence (EOO) of approximately 1,000 km 2. The species occurs in ecologically intact forest understorey across four townships at 1,100–2,050 m a. s. l., where over 20 subpopulations and more than 500 mature individuals have been documented. Although its relatively small range and population size approach the thresholds for Vulnerable under Criteria B (small distribution range combined with fragmentation, decline or extreme fluctuations) and D (very small population or very restricted distribution), no severe ongoing decline or imminent threats were observed. However, its restricted distribution and limited number of locations make it potentially susceptible to future threats, warranting monitoring under the Near Threatened category.</p></div>	https://treatment.plazi.org/id/A1C87FDBA8DA58F39BFDD533E17A84DB	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	Luo, Qiang;Chen, Hong;Yuan, Ying;Yang, Hong;Liu, Chan;Song, Xinqiang;Ma, Shen	Luo, Qiang, Chen, Hong, Yuan, Ying, Yang, Hong, Liu, Chan, Song, Xinqiang, Ma, Shen (2026): Impatiens longcanggouensis (Balsaminaceae): a new species from Sichuan, China. PhytoKeys 270: 1-12, DOI: 10.3897/phytokeys.270.174879
