taxonID	type	description	language	source
03E88541FFF78870FF29FC9FFD83F801.taxon	diagnosis	Diagnosis: — Similar to Riccia crinita, but differing in the smaller spore size (56 – 71 µm in diameter), and the spore distal surface and proximal surface alveoli without thick borders.	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
03E88541FFF78870FF29FC9FFD83F801.taxon	materials_examined	Type: — China, Sichuan, Kangding City, hillside of S 215 Road (from Waze Town to Jiulong County), 29 ° 33 ’ 38.02 ” N, 101 ° 22 ’ 26.52 ” E, 3112 m, on soil, Y. L. Xiang & C. Shen 20190908 - 14 (holotype: HSNU). Plants in mats, terrestrial. Thallus small to medium-sized, 0.6 – 1.0 mm wide, up to 3 – 6 mm long; 2 – 3 x furcate, shortly to deeply divided; color of upper surface bluish-green, yellowish-brown to base, purple-violet on sides; dorsal furrow narrow and deep distally on dorsal surface, becoming broader and shallower towards the base; in section, thallus lobes 0.65 – 0.74 mm high and 2 – 3 times as wide as high; photosynthetic tissue of densely packed narrow columns 4 – 7 cells long; marginal cilia numerous, from thallus apex to base, shiny-hyaline, 0.28 – 0.80 mm long, not papillate; ventral scales violet-blackish with hyaline margins; rhizoids numerous and internally tuberculate. Monoicous. Antheridial necks projecting, hyaline; sporogonium common; capsules several per plant, embedded in thallus, prominent and rupturing on the dorsal surface, with cilia protruding from apex of capsule. Spores 56 – 71 µm in diameter, pale brown to dark brown, distal surface usually with well-defined areolae (3.5 – 9.6 µm in diameter), 8 – 10 across diameter, with tubercules at the angles, proximal surface with similar ornamentation but alveoli with thinner walls; wing 2 – 3 µm wide, wing margin slightly crenulate.	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
03E88541FFF78870FF29FC9FFD83F801.taxon	etymology	Etymology: — The specific epithet consists of “ sub ” and “ crinita ”, meaning closely related to Riccia crinita. Specimens examined: — CHINA. Gansu, Maqu County, slope near road G 345, 33 ° 51 ʹ 28.14 ʺ N, 101 ° 53 ʹ 28.14 ʺ E, 3744 m, on soil, C. Shen et al. 20200827 - 53 (HSNU); Sichuan, Kangding City, hillside of S 215 Road (from Waze Town to Jiulong County), 29 ° 33 ’ 38.02 ” N, 101 ° 22 ’ 26.52 ” E, 3112 m, on soil, Y. L. Xiang & C. Shen 20190908 - 14 (HSNU).	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
03E88541FFF78870FF29FC9FFD83F801.taxon	distribution	Distribution and habitat: — Known only from China. In China, it grows on moist and shady soils, associated with Aitchisoniella himalayensis Kashyap (1914: 217), Athalamia pinguis Falconer in Anonymous (1848: 375), and Targionia hypophylla Linnaeus (1753: 1136), from 3112 m to 3744 m. Notes: — Riccia subcrinita is characterized by 1) monoicy, 2) thalli growing in mats, not in rosettes or hemirosettes (Fig. 2 A – B), 3) photosynthetic tissue arranged in narrow, tightly packed vertical columns (Fig. 2 C – D), 4) thalli 0.6 – 1 mm wide, 2 – 3 times as broad as thick in transverse section (Fig. 2 C – D), 5) Cilia numerous, from thallus apex to base (Fig. 2 A – B); 6) spores 56 – 71 µm in diameter, with complete alveoli on the distal face, 8 – 10 areolae across the diameter, with tubercules at the angles, but alveoli without thick borders (Fig. 2 E – F & I – L), and 7) spore wings 2 – 3 µm wide, slightly crenulate (Fig. 2 G – H).	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
03E88541FFFA887DFF29FF15FBC9FB0F.taxon	materials_examined	Type: — INDONESIA, Java, Junghuhn s. n. (holotype: STR). Plants in mats, terrestrial. Thallus medium-sized, 1.5 – 2.8 mm wide, 5.4 – 8 mm long; repeatedly 1 – 2 x furcate; ultimate branches shortly to deeply divided, obovate to oblong, apex rounded or truncate; color of upper surface light green to yellowish-green; dorsal furrow distinct, along length of branches; sections of thallus lobes 0.7 – 1.0 mm high and 2.6 – 3.5 times as wide as tall; air chambers present, narrow; cilia absent; ventral scales mottled hyaline to maroon, present on ventral flanks; rhizoids smooth and pegged, hyaline, covering ventral surface of midrib of thallus. Monoicous. Antheridia and archegonia in 1 – 2 rows along midline of the thallus, necks hyaline, not prominent. Sporangia numerous. Spores 64 – 85 μm in diameter; triangular-globular; light brown to dark brown; distal face reticulate forming 6 – 10 areolae across the diameter, with papillae at corners; proximal face with similar ornamentation, triradiate mark indistinct; spore wing 3 – 4 µm wide, crenulate. Specimens examined: — CHINA. Zhejiang: Kaihua County, Qianjiangyuan National Park, Gutianshan Nature Reserve, along the road from Gutianshanzhuang to gate of Qianjiangyuan National Park, 29 ° 14 ’ 33.50 ” N, 118 ° 6 ’ 38.56 ” E, 306 m, on soil, Y. Bai et al. 20201101 - 34 (HSNU); Y. Bai et al. 20201101 - 41 (HSNU); Kaihua County, Kukeng Village, 29 ° 18 ’ 50.86 ” N, 118 ° 11 ’ 37.02 ” E, 434 m, on soil, Y. L. Xiang & W. Z. Huang 20210417 - 14 A (HSNU). INDONESIA. Ambon Island, Waiyame County, near Dusun Bandaria, Rumah-Tiga Village, 3 ° 39.221 ’ S, 128 ° 10.221 ’ E, 120 m, on soil, R. - L. Zhu et al. 20170520 - 15 (HSNU).	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
03E88541FFFA887DFF29FF15FBC9FB0F.taxon	distribution	Distribution and habitat: — So far, Riccia junghuhniana has been known from Australia (Northern Territory), China (Zhejiang), and Indonesia (Ambon, Bali, Java). In China, it grows on moist and shady soil at a low altitude, from 306 m to 434 m. Notes: — The important features of Riccia junghuhniana include the 1) monoicy; 2) thalli growing as patches, not in rosettes or hemi-rosettes (Fig. 3 A – B); 3) with narrow air chambers in thallus (Fig. 3 O – P); 4) thallus 2 – 2.5 mm wide, 2.6 – 3.5 times as broad as thick in transverse section (Fig. 3 O – P); 5) spores 64 – 85 µm in diameter, with complete alveoli on the distal face, 6 – 10 areolae across the diameter, with papillate corners (Fig. 3 E – F & K – N), and 6) spore wings 3 – 4 µm wide, crenulate (Fig. 3 C – D). The morphological comparison among samples from China and Indonesia showed that there were no obvious differences in the characters mentioned above.	en	Xiang, You-Liang, Zhang, Zhi-Xin, Chen, Sheng-Wen, Yu, Jian-Ping, Huang, Wen-Zhuan, Shen, Chao, Zhu, Rui-Liang (2022): Morphological and molecular evidence confirms a new species, Riccia subcrinita YouL. Xiang & R. L. Zhu) and Riccia junghuhniana Nees & Lindenb. (Ricciaceae, Marchantiophyta) new to China. Phytotaxa 531 (1): 41-53, DOI: 10.11646/phytotaxa.531.1.3
