taxonID	type	description	language	source
D1E2DAE30D1D5EF6B86476C14D598483.taxon	description	Figs 1, 2	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	materials_examined	Type. China. Guizhou, Wangmo Co., Jiaona Tw., Babu Village, Liji Sect., 25 ° 21 ' 8 " N, 106 ° 17 ' 44 " E, elev. 1081 m, 20 Feb 2021, C. Y. Deng & Q. M. Ban 2021001 (holotype: NF; isotypes: NF, NAS, XIN).	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	diagnosis	Diagnosis. Cinnamomum guizhouense is close to C. foveolatum (Merr.) H. W. Li et J. Li (Li et al. 2008: 170) in having leaves that lack domatia in the axils of the lateral leaf veins and in the long fruiting cupule, but differs from the latter by the longer leaves (12 - 21 cm vs. 9 - 15 cm in C. foveolatum), longer petioles 2 - 4 cm long (vs. 1 - 1.3 cm in C. foveolatum), longer tepals (3 - 4 mm long vs. 1.7 - 2 mm long in C. foveolatum), and shorter campanulate or cup-shaped cupules ca. 15 mm long (vs. cupules up to 20 mm long in C. foveolatum).	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	description	Description. Trees, evergreen, 11 - 13 m tall, D. B. H. ca. 36 cm (Fig. 1 a); crown columnar to pyramid shaped, ca. 3 m in diam. Trunk straight; bark gray, longitudinally fissured. Twigs angular, glabrous, with multiple circular scale scars at base of twigs. Terminal buds prominent, to 2.5 cm long, 1.5 cm in diam. (Fig. 1 b); bracts many (to 15), obovate to oblanceolate, apex obtuse, acute to cuspidate, abaxially pubescent, adaxially glabrous, margin ciliate. Leaves alternate; petioles glabrous, channeled abaxial, 2 - 4 cm long (Figs 1 c-e, 2 a); blade coriaceous, elliptic to obovate-elliptic, 6 - 9 x 12 - 21 cm, base acute to cuneate, more or less decurrent, apex acuminate, pinnately veined, secondary veins 5 - 7 pairs, midrib and secondary veins immersed or slightly raised on adaxial surface, elevated on abaxial surface; adaxially green, abaxially glabrous and glaucous. Panicles terminal (Figs 1 c, 1 f, 2 a), 7 - 10 cm long, peduncles, pedicels and tepals pubescent, lateral flowers of ultimate cymes opposite, pedicels 4 - 6 mm long. Flowers bisexual, receptacle prominent, obconic, ca. 1 mm long, 1 mm in diam.; perianth in two whorls, tepals 6 - 8, subequal, oblong-elliptic to linear, 3 - 4 mm long, 1 mm wide, both surfaces pubescent, margin ciliate (Figs 1 g, 1 h); stamens in three whorls, 3 or 4 in each whorl, 1.5 - 2 mm long, filaments subequalling anthers, glabrous, each stamen of third whorl with two globose glands at base; anthers yellow, 4 - locular, those of outer two whorls introrse, those of third whorl extrorse (Figs 1 i- 1 k, 2 d- 2 e); staminodes of fourth whorl sagittate, filaments pubescent (Fig. 2 f); pistil glabrous, ovary ovoid to ellipsoid, 1.2 mm long, ca. 0.8 mm in diam., style glabrous, ca. 1 mm long, stigma peltate when fresh, inconspicuous when dry (Figs 1 l, 2 g). Infructescences 6 - 15 cm long. Young fruit together with cupules obovoid-ellipsoid, 15 - 20 mm long, 13 - 17 mm in diam., 3 / 4 or more of fruit enclosed in cupule (Fig. 1 m). Fruit black when mature, cupulate, cupules campanulate to cup-shaped, ca. 1.5 cm long, 1.5 cm in diam. (Fig. 1 n, 2 i); pedicels thickened, 4 - 6 mm in diam.; seeds ellipsoid to subglobose (Fig. 2 J), ca. 1 cm long, 8 mm in diam., yellowish-brown, longitudinally ridged. Flowering February; fruiting September and October.	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	etymology	Etymology. The species is named after the province, Guizhou, where it occurs.	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	distribution	Distribution. Cinnamomum guizhouense is known only from Wangmo Xian, Guizhou Province, southwestern China (Fig. 3).	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	conservation	Conservation. On four instances of field investigations in the area, we found only two mature plants living within ca. 100 m 2. We thus designate the species to be Critically Endangered (CR B 1 + 2 ab (iii); C 1 + 2 a (i); D) according to the IUCN red list categories and criteria (IUCN 2012, 2022), but we acknowledge that further assessments are necessary as new populations are found.	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
D1E2DAE30D1D5EF6B86476C14D598483.taxon	materials_examined	Additional specimens examined. China. Guizhou, Wangmo Xian, Jiaona Tw., Babu Village, Liji Section, 25 ° 21 ' 8 " N, 106 ° 17 ' 44 " E, elev. 1081 m, 20 Feb 2021, C. Y. Deng & Q. M. Ban 2021002 (NF, XIN), 2021003 (NF, XIN); 21 Oct 2020, C. Y. Deng et al. 2020102111 (XIN); 20 Oct 2020, C. Y. Deng & J. B. Xu 2020102802 (XIN); 10 Jun 2021, C. Y. Deng & Q. M. Ban 2021061001 & 2021061002 (XIN).	en	Yang, Zhi, Deng, Chaoyi, Wang, Lulu, Ban, Qiming, Yang, Yong (2022): A new species of Cinnamomum (Lauraceae) from southwestern China. PhytoKeys 202: 35-44, DOI: http://dx.doi.org/10.3897/phytokeys.202.76344, URL: http://dx.doi.org/10.3897/phytokeys.202.76344
