identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
71E990EB91AA5370AA2AFB60D17DFCC0.text	71E990EB91AA5370AA2AFB60D17DFCC0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hemipilia huanglongensis D. J. Xie & R. B. Zhang 2026	<div><p>Hemipilia huanglongensis D. J. Xie &amp; R. B. Zhang sp. nov.</p><p>Figs 1, 2</p><p>Type.</p><p>China • Sichuan Province, Songpan City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.90306&amp;materialsCitation.latitude=32.81722" title="Search Plazi for locations around (long 103.90306/lat 32.81722)">Huanglong Nature Reserve</a>, elev. ca. 3500 m, 32.81722, 103.90306, growing on sunny, rocky slopes, 25 July 2025; Ren-Bo Zhang ZRB 3137 (fl.) (holotype: ZY!) and Da-Jun Xie SCHL 05 (fl.) (paratypes: SCFI!) .</p><p>Diagnosis.</p><p>Hemipilia huanglongensis morphologically resembles H. amplexifolia, H. faberi and H. tetraloba . Hemipilia huanglongensis differs from H. amplexifolia in having a multi-flowered rachis (vs. 1–2 - flowered) and purple flowers (vs. white with purplish-red spotting, which may appear red in PPBC photographs). Hemipilia huanglongensis can be distinguished from the other two species by the lip base (squamose vs. papillate in H. faberi and H. tetraloba, following the same order) with an upwardly protruding lamellae (vs. absent), more lateral sepal veins (3 vs. 1), longer ovary and pedicel (≥ 12.6 vs. ≤ 10; measurements in millimetres, the same below), longer dorsal sepal (≥ 3.7 vs. ≤ 3.5), longer lateral sepal (≥ 4.7 vs. ≤ 4), longer petal (≥ 3.7 vs. ≤ 3.5), longer lip (≥ 12.6 vs. ≤ 8), wider lip (≥ 8.3 vs. ≤ 7.5), longer lateral lip lobe (≥ 4.5 vs. ≤ 3.8) and longer middle lip lobe (≥ 8.6 vs. ≤ 4.2).</p><p>Type.</p><p>Herbs, 7–28 cm tall. Tubers ovate-elliptical, 6–10 mm long. Stems with 1 or 2 tubular sheaths at base, 1 - leafed. Leaves cauline, porrect, narrowly lanceolate to elliptic or ovate, 3–8 × 0.5–0.8 cm, apex obtuse. Peduncle ebracteate; rachis 6.5–13 cm long, several flowered; floral bracts lanceolate, 4.6–7.7 mm long, much shorter than ovary, apex acuminate. Flowers often secund, purple; ovary and pedicel 12.6–20.0 mm long. Dorsal sepal oblong-ovate, 3.7–4.0 × 2.4–2.6 mm, 1 - veined, apex obtuse; lateral sepals oblique ovate, 4.7–5.8 × 2.5–3.0 mm, 3 - veined, margin somewhat undulate, apex obtuse. Petals loosely connivent with dorsal sepal and forming a hood, sub-orbicular, concave, slightly oblique, 3.7–4.6 × 3.0– 3.6 mm, 1 - veined with several shorter veins; lip broadly ovate, 12.6–15.3 × 8.3–12.5 mm, base cuneate and with an upwardly protruding lamellae, 3 - lobed below middle; disc densely papillate; lateral lobes oblanceolate, 4.5–6.0 × 1.6–3.0 mm, apical margin irregularly crenate, apex obtuse; mid-lobe obovate, 8.6–11.0 × 5.8–9.0 mm, base cuneate, apical margin irregularly crenate, deeply notched towards apex to form 2 distinct lobules, sinus with an obtuse tooth; spur nearly horizontal, cylindrical-clavate, 5.1–8.0 mm long, slightly dilated towards apex, apex obuse; viscidium oblong; stigma lobes clavate.</p><p>Phenology.</p><p>Flowering occurs in July.</p><p>Etymology.</p><p>The specific epithet is derived from the type locality, Huanglong Nature Reserve, Sichuan Province, China.</p><p>Vernacular name.</p><p>The Chinese name proposed here is “ 黄龙舌喙兰 ”. Phonetically, it is “ huáng lóng shé huì lán ”.</p><p>Distribution and ecology.</p><p>The new species is currently known only from the type locality, the Huanglong Nature Reserve in Songpan County, Aba Prefecture, Sichuan Province. It grows on rocky, sun-exposed slopes, at an altitude of ca. 3500 m.</p><p>Conservation status.</p><p>Hemipilia huanglongensis is known only from the type locality, with the individuals estimated to be more than several hundreds of plants. The known subpopulations are restricted to a very small area within the Huanglong Valley, resulting in a very limited extent of occurrence (EOO). The estimated area of occupancy (AOO) is also restricted and the total number of mature individuals is low. Although the habitat is currently within a protected area and not under immediate anthropogenic threat, the species meets the criteria for Vulnerable (VU) under criterion D 2 (population with a very restricted area of occupancy or number of locations, making it prone to the effects of human activities or stochastic events within a very short time period) (IUCN Standards and Petitions Committee 2022). A provisional conservation status of VU D 2 is therefore proposed.</p><p>Taxonomic and phylogenetic notes.</p><p>Hemipilia huanglongensis is close to H. amplexifolia, H. faberi and H. tetraloba, based on morphological characters, yet it is clearly differentiated from them by the characters listed in Table 2. Although conflicts exist between the ITS and plastid data, the clade comprising H. huanglongensis together with H. amplexifolia, H. faberi, and H. tetraloba is consistently recovered in both the nuclear and plastid trees. This result is congruent with previous studies (Jin et al. 2014; Tang et al. 2015), providing further support for the close relationship amongst these species. The BI of ITS showed that H. huanglongensis was nested within the H. tetraloba - H. amplexifolia clade with high support (Fig. 3, PP = 1.0). Similarly, analysis of its plastid counterpart indicated that H. huanglongensis is close to H. amplexifolia with high support (Fig. 4, PP = 0.9), whose clade was sister to a clade formed by H. faberi and H. tetraloba with high support (Fig. 4, PP = 1.0).</p></div>	https://treatment.plazi.org/id/71E990EB91AA5370AA2AFB60D17DFCC0	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	Xie, Da-Jun;Li, Jin-Xiao;Deng, Tan;Wei, Ruo-Xun;Dou, Quan-Li;Peng, Shu-Ming;Zhang, Ren-Bo	Xie, Da-Jun, Li, Jin-Xiao, Deng, Tan, Wei, Ruo-Xun, Dou, Quan-Li, Peng, Shu-Ming, Zhang, Ren-Bo (2026): Hemipilia huanglongensis (Orchidaceae), a new species from north Sichuan, China. PhytoKeys 273: 225-236, DOI: 10.3897/phytokeys.273.181545
