Paraphlomis strictiflora J. C. Yuan, B. Chen & C. L. Xiang 2022, sp. nov.
Creators: name: Yuan, Jing-Chen
name: Chen, Ya-Ping
name: Zhao, Yue
name: Li, Hai-Bo
name: Chen, Bin
name: Xiang, Chun-Lei
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Paraphlomis
Paraphlomis strictiflora

description: Paraphlomis strictiflora J.C. Yuan, B. Chen & C.L. Xiang, sp. nov. (Figs. 1, 2)
Type:— CHINA. Guizhou Province, Yinjiang County, Yangjiaping, in the forest or at streamside. 27°51′19.97″N, 108°31′55.90″E, alt. 871m, 21 Jul. 2022, Y. Zhao et al. XCL2120 (holotype: KUN!; isotypes: CSH!, K!, KUN!, PE!).
Diagnosis:— Paraphlomis strictifora is morphologically most similar to P. lanceolata Handel-Mazzetti (1936: 922), but differs in its 9–12 mm long (vs. 5–7 mm) and conspicuously (vs. inconspicuously) 5-veined calyces with triangular (vs. broadly ovate-triangular) teeth, and white (vs. yellow to yellowish white) corollas with straight (vs. obviously reflexed) lower lips.
Description:— Perennial herbs, stoloniferous. Stems erect, 50–70 cm tall, rarely branched, 4-angled, sulcate, base glabrous, apex retrorsely strigose, leafless toward the base. Leaves opposite; lamina ovate-lanceolate to lanceolate, herbaceous, 7–16 cm long, 2–5 cm wide, apex long acuminate, base cuneate-decurrent, margin coarsely dentateserrate, adaxially dark-green, sparsely hirsute, abaxially whitish green, sparsely hirsute on veins, lateral veins 3–5 paired; petioles 0.5–1.2 cm long. Verticillasters 2–6-flowered, widely spaced, bracteoles subulate, 1–2 mm long, sparsely strigose, pedicels ca. 2 mm long. Calyx green, obconical, 9–12 mm long, 3–4 mm in diam at apex, sparsely hispidulous on veins outside, glabrous inside, conspicuously 5-veined; teeth 5, subequal, triangular, 2–3 mm long, 2–3 mm wide, apex acute, margin hispidulous. Corolla white, 16–18 mm long; tube 8–10 mm long, ca. 1.5 mm wide, straight, pubescent annulate inside at 1/4 towards base; 2-lipped, lips subparallel, upper lip oblong, entire, erect, ca. 7 mm long, ca. 5 mm wide, densely pubescent outside, lower lip spreading and straight, ca. 8 mm long, 3-lobed, medium lobe largest, trapeziform, ca. 4 mm long, ca. 2 mm wide, margin entire, lateral lobes reflexed. Stamens 4, straight, anterior 2 longer, filament sparsely pubescent, posterior 2 shorter, filament densely pubescent, anther cells 2. Style glabrous, ca. 1.8 cm, long apex subequally 2-cleft, lobes subulate. Ovary glabrous, truncate at apex. Mericarps not seen.
Phenology:— Flowering from July to August.
Etymology:— The specific epithet traces back to the distinct corolla of the new species compared with that of other species of Paraphlomis, with both lips of the corolla straight and not reflexed.
Distribution and habitat:— Paraphlomis strictiflora is currently only known from Fanjing Mountain National Natural Reserve in Guizhou Province, China (Fig. 3). Affected by the Southeast Asia Pacific monsoon, the Fanjing Mountains are located in the subtropical humid monsoon climate zone (Tsai et al. 2018). The new species grows on moist rocks at the streamside in evergreen broad-leaved forests at an altitude of ca. 900 m.
Common name (assigned here):— zhi hua jia cao su (ĦAE假ďḟ; Chinese name). The name means a species of Paraphlomis with straight corolla in English.
Additional specimens examined (paratypes):— CHINA. Guizhou Province: Yinjiang County, Chanxi Town, 27°51’19.54″N, 108°31’55.2″E, alt. 857 m, 22 Jul. 2021, B. Chen et al. CB05956 (CSH).
Specimens of P. lanceolata examined: — CHINA. Hunan Province: Wugang City, Yunshan (Mt. Yun), 7 Aug. 1918, H. Handel-Mazzetti 2540 (holotype: WU0063810; isotypes: E00284169, IBSC0005125, GH00001399); Yunshan National Forest Park, 25 Jun. 2021, A. Liu & Y.K. Gong WGYS085 (KUN); Ningyuan County, Jiuyi Mountain Conservation Area, 11 Jun. 2020, A. Liu & C. Ding LK0825 (KUN); Guidong County, Oujiang Town, 11 Jul. 2020, C. Z. Huang s.n. (KUN); Yanling County, Jiuqushui, C.C. Liu et al. LXP-13-23944 (SYS00198865). Jiangxi Province: Luxi County, Wugongshan (Mt. Wugong), 26 Jun. 2017, R.L. Liu & Z.B. Tang 170626012 (GNNU0006350); Ji’an City, Jinggangshan (Mt. Jinggang), 19 Jun. 1965, S.S. Lai 4198 (KUN0277270); ibid., 9 Jul. 1965, S.S. Lai et al. 4403 (KUN0277698).
description: Published as part of Yuan, Jing-Chen, Chen, Ya-Ping, Zhao, Yue, Li, Hai-Bo, Chen, Bin & Xiang, Chun-Lei, 2022, Paraphlomis strictiflora (Lamioideae, Lamiaceae), a new species from Guizhou, China, pp. 276-286 in Phytotaxa 575 (3) on pages 278-280, DOI: 10.11646/phytotaxa.575.3.5, http://zenodo.org/record/7431324