Middletonia hainanensis (Chun) X. X. Bai, 2025

Li, Qi-Yang, Bai, Xin-Xiang & He, Song-Tao, 2025, Two new combinations of Middletonia (Gesneriaceae) in China, PhytoKeys 261, pp. 33-43 : 33-43

Middletonia hainanensis (Chun) X. X. Bai comb. nov.

Fig. 2 D – F

≡ Boea hainanensis Chun in Flora Hainanica 3: 526, 588, f. 903. 1974. Type: China, Hainan, Yaichow , on moist shaded rocks along streams in mountains, 18°30'N, 109°08'E, 24 September 1933, H. Y. Liang 63102 (isotype: E!, NY!, GH!) .

≡ Paraboea hainanensis (Chun) Burtt in Notes from the Royal Botanic Garden, Edinb 41 (3): 429. 1984.

Distribution and habitat.

Hainan Province: Dongfang County. The species grows on moist, shaded rocks along the stream or mountains at an elevation of 800 m. Reported as occurring on acid soil.

Vernacular name.

Hǎi Nán Fěn Máo Jù Tái (Chinese pronunciation); 海南粉毛苣苔 (Chinese name).

Representative specimens examined.

China. Hainan Province: • Ledong County, Aug 1985, Xinqi Liu 27407 ( PE!) ; • Dongfang County, Aug 1985, Shaoqing Chen 11251 ( IBSC!) ; • Changjiang County, 0–800 m elev., 25 Jun 1975, Guoyuan Fu 264 ( IBSC!) ; • Changjiang County, 1400 m elev., 20 Aug 2004, The Kadoorie Project Team of Hong Kong 6632 ( PE!) ; • Hainan, 26 Sep 1933, Xiangri Liang 63162 ( IBK!) ; • Hainan, 24 Sep 1933, H. Y. Liang 63102 ( E!; NY!) .

Figures

Figure 2. Morphological comparisons of Paraboea hainanensis. A. E 00067459; B. NY 00074065; C. GH 00025112; D. Front view of the plant; E. Top view of the plant; F. Leaves (Images D – F were photographed by Qi-Yang Li).