taxonID	type	description	language	source
64EF92FB29EF5C5495F845862A64093D.taxon	description	Figs 1, 2 Chinese name: 小苞秋海棠	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
64EF92FB29EF5C5495F845862A64093D.taxon	materials_examined	Type. China Guangxi, Longzhou County (龙州县), Zhubu Town (逐卜乡), Bannong Village (板弄屯), Yinghuagu Tourist Resort, 22 ° 33 ' 51 " N, 106 ° 57 ' 03 " E, (Fig. 3), 263 m alt., in shaded environment of limestone forest, October, 2021, Xin-Xin Feng, Ren-Kun Li & Zhi-Xian Liu (holotype: 835307, IBSC!; isotype: SYS!). Longzhou County (龙州县), Zhubu Town (逐卜乡), Pona Village (坡那屯), Nonggang National Nature Reserve, 22 ° 39 ' 03 " N, 106 ° 57 ' 18 " E, 190 m alt., on rock under limestone forest, 18 May 2020, Dai-Ke Tian & Jinye Zhou TDK 4119 (CSH!).	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
64EF92FB29EF5C5495F845862A64093D.taxon	diagnosis	Diagnosis. Begonia parvibracteata morphologically resembles B. subhowii and B. psilophylla in rhizome and leaf characters. However, it has narrowly oblique-ovate asymmetric leaf blades, 4 (rarely 6) tepals in pistillate flowers and small (6 - 8 x 3 - 5 mm) bracts in inflorescences. These characters differ from the widely ovate leaf blades, 5 (rarely 6) tepals of pistillate flowers, and distinctly large bracts in inflorescences of B. subhowii. B. parvibracteata is dissimilar to B. psilophylla in its 4 (rarely 6) tepals in pistillate flowers and asymmetric, narrowly oblique-ovate leaf blade. Begonia parvibracteata forms a monophyletic group clustered with B. cucurbitifolia in the phylogenic tree, but the latter has nearly symmetric, 3 - 4 lobed leaf blade, 5 - tepaled pistillate flower, definitely differing from the new species.	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
64EF92FB29EF5C5495F845862A64093D.taxon	description	Description. Perennial evergreen herb, monoecious, 15 - 30 cm tall. Rhizome creeping, ca. 8.5 - 12 cm long and 6 - 10 mm thick, internode short or not obvious; erect stem only seen at anthesis, ca. 7.5 - 10 cm long, internodes 1 - 2 (3), green to reddish-green, glabrous. Stipules brownish-red, translucent, ovate-triangular, ca. 8 - 10 x 4 - 5 mm, glabrous. Leaves 3 - 6 basal and 2 - 3 aerial, petiole yellowish-green, 18 - 22 cm long, glabrous; blade asymmetric, ovate to narrowly ovate, 14 - 16 x 7.5 - 9 cm; apex acuminate to caudate, base oblique-cordate; leaf margin usually almost entire or occasionally crenate; venation palmate with 6 - 8 primary veins, adaxially slightly concave, abaxially convex; leaf blade fleshy, abaxially pale-green, glabrous; adaxially green, glabrous. Inflorescences arising from erect stem; dichasial cymes branching one to two times, peduncle 10 - 12 cm long, glabrous; flowers unisexual, 3 - 7 flowers per inflorescences; bracts membranous, triangular to widely ovate, brownish-red, 6 - 8 x 3 - 5 mm, glabrous. Staminate flower: pedicels pale green, ca. 2 - 2.3 cm long, glabrous; tepals 4, outer 2 tepals ovate to circular, 13 - 21 x 12 - 20 mm, adaxially concave, pinkish-white, abaxially convex, pinkish-white, red hispid; inner 2 obovate, 10 - 18 x 8 - 12 mm, margin irregularly entire, white, glabrous; androecium cylindrical, ca. 6.6 - 7.5 mm across; stamens numerous, ca. 2 - 2.5 mm long, anthers yellow, clavate, base cuneate, ca. 1.5 mm long. Pistillate flower: pedicels pale green, ca. 2 - 2.6 cm long, glabrous; tepals 4, occasionally 6, white, irregularly ovate, obovate or cuneate, sub-equal, 18 - 20 x 10 - 15 mm, glabrous; ovary yellowish-green, trigonous-ellipsoid, 11 - 12 x 5 - 6 mm (wings excluded), glabrous; 2 - loculed, placentae axillary, placentae bifid per locule; styles 2, fused at base, yellow, ca. 5 - 6 mm long, apically Y-shaped, stigma U-shaped, spirally twisted. Capsules nodding, trigonous-ellipsoid, ca. 11 - 13 x 5 - 6.5 mm (wings excluded), yellowish-green, glabrous, unequally 3 - winged, abaxial wing triangular to ligulate, ca. 10 - 13 mm long; lateral wings lunate, 3 - 6 mm long.	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
64EF92FB29EF5C5495F845862A64093D.taxon	distribution	Distribution and habitat. Currently known from four localities in Longzhou County and Daxin Countym Guangxi, China. It usually grows on rocks or rock cracks in limestone under forest.	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
64EF92FB29EF5C5495F845862A64093D.taxon	etymology	Etymology. The specific epithet " parvibracteata " refers to the short small bracts of the new species. The Chinese name is given as " 小苞秋海棠 " (Begonia with small inflorescence bracts).	en	Feng, Xin-Xin, Huang, Xiao-Feng, Huang, Yu-Ni, Liu, Zhi-Xian, Li, Ren-Kun, Zhou, Jin-Ye, Guo, Wei, Chen, Xiao-Yan, Tian, Dai-Ke (2022): Begonia parvibracteata, a new species in Begonia sect. Platycentrum (Begoniaceae) from Guangxi of China, based on morphological and molecular evidence. PhytoKeys 214: 27-38, DOI: http://dx.doi.org/10.3897/phytokeys.214.90004, URL: http://dx.doi.org/10.3897/phytokeys.214.90004
