Paraphlomis anisochila Y. P. Chen, A. Liu & F. Zhang, 2025

Liu, Ang, Chen, Hai-Bo, Zhang, Fan & Chen, Ya-Ping, 2025, Paraphlomis anisochila (Lamiaceae), a new species from Hunan, China, PhytoKeys 259, pp. 249-262 : 249-262

Paraphlomis anisochila Y. P. Chen, A. Liu & F. Zhang sp. nov.

Figs 2 , 3 , Appendix 2

Type.

China. Hunan: • Daoxian County, Qingtang Town, Dupangling Natural Reserve, Jinliyuan , 25°29'09"N, 111°21'31"E, elev. 547 m, 2 Aug. 2020, A. Liu et al. LK 1088 (holotype: KUN 1643901 !; isotypes: CSFI 075346 !, CSH!, KUN 1643902 !) .

Diagnosis.

Paraphlomis anisochila is morphologically similar to P. seticalyx and P. yingdeensis, but differs from the former in having an obovate to subcircular (vs. broadly ovate) lamina, 0.5–2.5 cm (vs. 3.5–9 cm) long petioles, unequal (vs. subequal) corolla lips, and subcircular (vs. oblong) lateral lobes of the lower corolla lip, from the latter in having an abaxially sparsely strigose (vs. densely villous) lamina, an acuminate (vs. bristle-like-acuminate) apex of calyx tooth, and a white (vs. yellow) corolla with unequal (vs. subequal) lips.

Herbs perennial, 20–30 cm tall, erect, stoloniferous. Stems 4 - angled, green to purplish-red, densely retrorse strigose, leafless toward base. Leaves opposite; lamina obovate to subcircular, thick papery, 4–10 cm long, 4–8.5 cm wide, base cuneate to broadly cuneate, apex obtuse, margin crenate-serrate, adaxially green, densely appressed strigose, abaxially light green, sparsely glandular, sparsely strigose on veins; lateral veins 3–4 - paired; petioles 0.5–2.5 cm long, densely retrorse strigose. Verticillasters many-flowered, globose, ca. 4 cm in diam.; bracteoles lanceolate to subulate, 3–5 mm long, densely strigose. Calyx green to purplish red, ca. 8 mm long, densely strigose outside, densely strigose at apex inside, 10 - veined; teeth 5, subequal, triangular, ca. 2 mm long, 2–3 mm wide, apex acuminate. Corolla white, 2–2.1 cm long, densely villose outside; tube ca. 1.3 cm long, ca. 1.5 mm wide, pubescent annulate inside at 1 / 3 distance from base; 2 - lipped, upper lip oblong, entire, erect, concave, ca. 4 mm long, ca. 3 mm wide; lower lip spreading, 7–8 mm long, ca. 6 mm wide, 3 - lobed, medium lobe largest, subcircular, dotted with purple spots, ca. 3.5–4.5 mm long, ca. 4 mm wide, lateral lobes semicircular, ca. 1.5 mm long, ca. 3 mm wide. Stamens 4, straight, included, filaments flat, glabrous, anther cells 2, parallel. Style included, glabrous, apex inconspicuously 2 - lobed. Ovary glabrous, apex truncate. Mericarps not seen.

Phenology.

Flowering from June to August.

Etymology.

The specific epithet “ anisochila ” refers to the distinct corolla morphology of the new species, characterized by significantly unequal upper and lower lips, which differentiates it from other Paraphlomis species that typically possess subequal / equal corolla lips.

Distribution and habitat.

The new species is currently known only from the Dupangling Natural Reserve in southwestern Hunan Province, China, where it typically inhabits EBLFs along streams at elevations ranging from 550 to 750 m (Fig. 4 ).

Chinese name

(assigned here). yì chún jiǎ cāo sū (异唇假糙苏).

Additional specimens examined.

China. Hunan: • Daoxian County, Shouyan Town, Kongshuyan Village, Dupangling Natural Reserve , 25°33'29"N, 111°20'26"E, elev. 748 m, 24 Jun. 2020, A. Liu LK 0932 ( CSFI!, KUN!) .

Specimens of P. seticalyx examined.

China. Guangdong: • Qingyuan City, Qingxin District, 16 Jul. 2018, Y. Tong et al. TY 20080901 ( KUN!); • Qingyuan City, Qingxin District, Mt. Bijia, 23°46'19"N, 113°02'13"E, elev. 120 m, among rocks at roadside, 1 Jun. 2023, Q. G. Zeng s. n. ( KUN!). Guangxi: • Lo-mong, 24 Jun. 1931, S. S. Sin et al. 22331 (holotype: IBSC 0005129!); • Ku-chun, 29 Jun. 1931, S. S. Sin et al. 21627 ( IBSC 0585111!); • ibid., 26 Jun. 1934, S. S. Sin et al. 23298 ( IBSC 0585110!); • Dayao Mountains, elev. 960 m, 30 Jun. 1958, Y. K. Li 400437 ( IBK 00059955!, IBSC 0585115!); • ibid., 9 Aug. 1958, Y. K. Li 400943 ( IBK 00059954!, IBSC 0585114!); • Fangchenggang City, Fulong Town, Mt. Pinglong, Masheniao Rainfall, at streamside, elev. 590 m, 10 Jul. 2020, Shiwandashan Exped. 2739 ( IBK 00234568!); • Guiping City, Shepo Town, 11 Jun. 1978, B. Q. Yang 8-02796 ( GXMI 053292!); • Jinxiu County, Changdong Town, Dishui Village, 10 Jun. 1977, Jinxiu Exped. 5-1 - 83 ( GXMI 053293!); • Jinxiu County, Gonghe Village, elev. 1020 m, 16 Sept. 1981, Dayaoshan Exped. 810484 ( GXMI 053294!); • Jinxiu County, Laoshan, 23 Jul. 1985, J. Y. Luo 65435 ( GXMI 053295!); • Lingchuan County, Haiyang Town, Antai Village, Baidaidi, 25°16'50.8"N, 110°42'59.6"E, elev. 513 m, 19 Jun. 2013, Lingchuan Exped. 450323130619027 LY ( GXMG 0148849!, IBK 00400020!); • Lingchuan County, Lantian Town, Jiangzhouping, 25°39'22.2"N, 110°7'57.6"E, elev. 1020 m, 2 Jul. 2013, Lingchuan Exped. 450323130702006 LY ( GXMG 0148848!, IBK 00400021!); • Lingchuan County, Qingshitan Town, Honglingtou Village, Zongshuping, 25°43'52.89"N, 110°14'54.78"E, elev. 609 m, 8 Aug. 2013, Lingchuan Exped. 450323130808002 LY ( GXMG 0148847!, IBK 00400019!); • Lingui District, Wantian Town, Hongtan, in forests, elev. 830 m, 29 Oct. 2023, A. Liu et al. GX 06 ( KUN!); • Longsheng County, Dadi Town, at streamside in forest, elev. 800 m, 11 Jul. 1955, Guangfu Exped. 00873 ( IBK 00191748!, IBSC 0585112!, KUN 0277040!, NAS 00224462!, PE 00834807!); • Longsheng County, Guangfu, Mt. Maozhu, elev. 1020 m, 19 Jul. 1955, Guangfu Exped. 00645 ( IBK 00191747!, IBSC 0585113!, NAS 00224461!, PE 00834808!); • Longsheng County, Mt. Tianping, 22 Jun. 1957, H. F. Qin & Z. T. Li 70422 ( IBK 00059952!, IBSC 0585117!); • Longsheng County, Huaping, near Hongtan, elev. 920 m, 14 Sept. 1984, Y. Z. Wei & Q. H. Lv 20352 ( IBK 00059953!); • Longsheng County, Huaping Natural Reserve, Weiqingling, elev. 1820 m, 30 Oct. 2006, Huaping Exped. H 1200 ( IBK 00228432!); • Longsheng County, Heping Town, 25°41'26"N, 110°03'25"E, elev. 542 m, 16 Apr. 2013, Longsheng Exped. 450328130416014 LY ( GXMG 0130436!, IBK 00362590!); • Longsheng County, Huaping National Natural Reserve, 25°33'47.25"N, 109°56'21.98"E, elev. 1338 m, 3 Sept. 2013, Longsheng Exped. 450328130903029 LY ( GXMG 0130437!, IBK 00362591!); • ibid., 25°33'37"N, 109°55'52"E, elev. 1645 m, 29 Aug. 2014, Longsheng Exped. 450328140829002 LY ( GXMG 0130438!, IBK 00362560!); • Longsheng County, Sishui Town, Liluo Forest Farm, Xijiangping Reservoir, elev. 950 m, 22 Jul. 2015, W. B. Xu & S. M. Xiong 12386 ( IBK!); • Luocheng County, in forest, 31 May 1989, Beijing Exped. 895418 ( PE 00834811!); • ibid., elev. 500 m, 1 Jun. 1989, Beijing Exped. 895679 ( PE 00834812!); • Rongshui County, Wangdong Town, Jiuwanshan Natural Reserve, elev. 500 m, 10 Jul. 1958, S. H. Chun 14852 ( IBK 00370418!, IBSC 0585116!, KUN 0228149!, NAS 00072430!, PE 00834805!).

Specimens of P. yingdeensis examined.

China. Guangdong: • Yingde City, Boluo Town, on the way from Xinzhai Village to Changshan Village , on the limestone cliff, 24°24'N, 113°0'E, elev. 61 m, 29 May 2021, W. Y. Zhao et al. ZWY- 2092 (isotype: KUN!).

Figures

Figure 2. Paraphlomis anisochila from the type locality. A. Habitat; B. Habit; C. Stolons; D. Inflorescence; E. Lateral view of flowers; F. Frontal view of flower; G. Frontal view of calyces (Photographed by A. Liu).

Figure 3. Foliar and floral morphology of Paraphlomis anisochila. A. Leaves; B. Flower and corolla; C. Calyx; D. Dissected calyces; E. Dissected corolla; F. Style; G. Ovary (Photographed by Y. P. Chen).

Figure 4. Distribution of Paraphlomis anisochila (red circles), P. seticalyx (blue squares), and P. yingdeensis (purple triangle).