taxonID	type	description	language	source
B9475B79D5E7513D9E3AC635165C4599.taxon	description	Figs 4, 5, 6, 7, 8	en	Zhang, Miao, Liu, Xiu-Ting, Tian, Min, Chen, Zhang-Xue, Huang, Ying-Lin, Chen, Guo-Di, Chen, Bing-Hua (2024): Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within Cladopus. PhytoKeys 249: 231-249, DOI: 10.3897/phytokeys.249.140342
B9475B79D5E7513D9E3AC635165C4599.taxon	diagnosis	Diagnosis. Cladopus yangjiangensis shares certain similarities with C. fukienensis and C. austrosinensis, such as comparable ovary lengths, and analogous stigma and capsule shapes. However, it is distinguished by several unique traits. The leaves of C. yangjiangensis are markedly elongated, measuring 18.7 – 26.7 mm, which is substantially longer than those of C. fukienensis (1.3 – 5.0 mm) and C. austrosinensis (up to 6 mm). The flowering shoots of C. yangjiangensis also exceed those of other two species, ranging from 4.2 to 13.1 mm, compared to 3.5 – 6.0 mm in C. fukienensis and 1.6 – 3.5 mm in C. austrosinensis. Additionally, C. yangjiangensis produces a greater number of bracts, with counts ranging from 20 to 54, in contrast to 12 – 36 in C. fukienensis and 8 – 14 in C. austrosinensis. Finally, the root width of C. yangjiangensis is notably narrower, at about 0.4 mm, compared to 0.4 – 1.3 mm in C. fukienensis and 0.5 – 1.3 mm in C. austrosinensis (Table 3).	en	Zhang, Miao, Liu, Xiu-Ting, Tian, Min, Chen, Zhang-Xue, Huang, Ying-Lin, Chen, Guo-Di, Chen, Bing-Hua (2024): Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within Cladopus. PhytoKeys 249: 231-249, DOI: 10.3897/phytokeys.249.140342
B9475B79D5E7513D9E3AC635165C4599.taxon	description	Description. Perennial aquatic herb; roots narrowly ribbon-like, compressed, dorsiventral, succulent, ca. 0.4 mm width, 0.1 – 0.2 mm thick, adhere to the surface of underwater rocks, brick-red during winter, dark green during reproduction; stem short, arising from root branch axils (Fig. 4); flowering shoots obpyramidal, solitary, erect, 4.2 – 13.1 mm tall; leaves linear, in rosette on vegetative shoots, 3 – 8 in number, 18.7 – 26.7 mm long, deciduous at flowering; leaves on reproductive shoots palmate (also known as bracts), lobes 3 – 5 digitate, central lobe long, columns two, opposite, overlapping, bracts 20 – 54, upper leaves larger, diminishing towards apex, 1.5 – 1.9 × 1.1 – 2.0 mm, lobes rigid and coarse after water loss; flowers bisexual, solitary at fertile branch apex, enclosed in pale red spathe during early development; spathella globose, acumen short, 1.7 × 0.3 mm; tepals two, broadly linear, acuminate, 0.7 – 1.1 mm long; stamen single, 1.2 – 2.4 mm long; filament nearly cylindrical, slightly flattened, 0.9 – 1.3 mm long; anthers two, elliptical, yellow, ~ 0.6 – 0.9 mm long; Ovary single, pale yellow-green, ellipsoid, two-chambered, 1.2 – 1.7 × 0.9 – 1.1 mm; ovules ovate, 15 – 23 per chamber, attached to entire placenta (Figs 5, 6); capsule brownish, globose, smooth, 1.1 – 1.4 mm long; fruit stalk 1.2 – 1.7 mm long; seeds small, yellow, narrowly ovoid, 0.3 – 0.5 × 0.1 – 0.3 mm (Fig. 7).	en	Zhang, Miao, Liu, Xiu-Ting, Tian, Min, Chen, Zhang-Xue, Huang, Ying-Lin, Chen, Guo-Di, Chen, Bing-Hua (2024): Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within Cladopus. PhytoKeys 249: 231-249, DOI: 10.3897/phytokeys.249.140342
B9475B79D5E7513D9E3AC635165C4599.taxon	distribution	Distribution and habitat. Many other plants grow in the surrounding habitat, whose tree layer includes Archidendron clypearia (Fabaceae), Engelhardia roxburghiana (Juglandaceae), Aporosa dioica (Phyllanthaceae), Zanthoxylum avicennae (Rutaceae), Sterculia lanceolata (Malvaceae) and others; the shrub layer includes Acronychia pedunculata (Rutaceae), Rhaphiolepis indica (Rosaceae), Rubus leucanthus (Rosaceae, Ficus pyriformis (Moraceae), Glochidion lanceolarium (Phyllanthaceae), Garcinia oblongifolia (Clusiaceae), Melastoma sanguineum (Melastomataceae), Saurauia tristyla (Actinidiaceae), Adina pilulifera (Rubiaceae), Pavetta hongkongensis (Rubiaceae), and others; the vegetation layer includes Blechnopsis orientalis (Blechnaceae), Plenasium vachellii (Osmundaceae), Acorus gramineus (Acoraceae), Pandanus austrosinensis (Pandanaceae), Alpinia hainanensis (Zingiberaceae), Thysanolaena latifolia (Poaceae), Miscanthus floridulus (Poaceae), Pentasachme caudata (Apocynaceae) and others; and some exotic plants include Stauntonia obovatifoliola (Lardizabalaceae), Phanera erythropoda (Fabaceae), Rourea microphylla (Connaraceae) and others.	en	Zhang, Miao, Liu, Xiu-Ting, Tian, Min, Chen, Zhang-Xue, Huang, Ying-Lin, Chen, Guo-Di, Chen, Bing-Hua (2024): Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within Cladopus. PhytoKeys 249: 231-249, DOI: 10.3897/phytokeys.249.140342
B9475B79D5E7513D9E3AC635165C4599.taxon	etymology	Etymology. The Yang Jiang Chuan Tai Cao (阳江川苔草). The epithet yangjiangensis (阳江) refers to Yangjiang City, Guangdong Province, South China, where this new species was found.	en	Zhang, Miao, Liu, Xiu-Ting, Tian, Min, Chen, Zhang-Xue, Huang, Ying-Lin, Chen, Guo-Di, Chen, Bing-Hua (2024): Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within Cladopus. PhytoKeys 249: 231-249, DOI: 10.3897/phytokeys.249.140342
