Disporum sessile D. Don ex Schult. var. intermedium (Hara) Y.H.Tseng & C.T.Chao, 2019

Chien-Ti, Chao & Yen-Hsueh, Tseng, 2019, Taxonomic revision of Disporum Salisb. (Colchicaceae, Uvularioideae) of Taiwan, PhytoKeys 119, pp. 1-22 : 1

2. Disporum sessile D. Don ex Schult. var. intermedium (Hara) Y.H.Tseng & C.T.Chao comb. nov. Figs 7 , 8 南投寶鐸花

D. sessile D. Don ex Schult. var. shimadai (Hayata) Hara f. intermedium Hara in Univ. Mus., Univ. Tokyo, Bull. 31:203. 1988. TYPE: Kwarenko, between Tosato and Totokun, 11 Apr. 1940, M. Tagawa 3700 (holotype: TI!, isotype: KYO!)

Disporum nantouense S. S. Ying, Mem. Coll. Argic. Natl. Taiwan Univ. 30(2):59. 1990. Wang, Cytotaxonomy of Liliaceae in Taiwan (II) Polygonateae and Tricyrteae. 44. 1997; Chen et al., Fl. China 22:157, 2000; Ying, Fl. Taiwan 2nd ed. 5:46. 2000. Type: Nantou county, Jenai township, Mt. Hohuanshan, near to Meifeng, alt. 2170 m, 9 Apr. 1989, Ying s.n. (holotype: NTUF), syn. nov.

Disporum taipingense M. N. Tamura & Kawano, nom. nud.

Perennial herbs.

Stem erect, 15-45 cm, lower nodes covered with scale leaf, persistent, branched at the upper part, with creeping stolon. Leaf deciduous, simple, alternate, lanceolate to linear-lanceolate, 3-nerved, 5-6 cm long, 2-3 cm wide, apex acuminate, base obtuse, petiole short, 3-5 mm long, green, sometimes reddish, estipule, glabrous. Inflorescences pseudoterminal, solitary to 2-3 flowers, peduncle 3-5 mm, bract absent. Pedicels 1-1.5 cm long, tepals 6, arranged into 2-whorls, spathulate, white, apex green with violet spots, 1.5-2 cm long, 6-8 mm wide, margin papillose, 3-nerved, base spurred, with nectary. Stamens 6, inserted at base of tepals, filaments 1-1.5 cm long, anthers 3 mm long, 2-loculed, longitudinally dehiscent. Ovary superior, 3-loculed, style slender, subglabrous, 1-1.5 cm long, stigma 3-fid, pubescent. Fruits berry, globose, purplish-black when mature. Seeds numerous. 2n = 16

Endemic to Taiwan.

Distributed in medium altitudes, ca. 1,500 m to 2,900 m.

Additional specimens examined.

Chiayi county: Alishan, near Tziyun temple, 14 Apr 1991, T. Y. Yang et al. 5548 (TNM); Alishan, 9 Jul 1981, C. E. Chang 18237 (PPI); on the road side of Mienyueh railroad, 16 Jul 1986, T. Y. A. Yang 3073 (PPI); Tungpu lodge to Chichung, 2400 m alt., 19 Oct 1987, S. Z. Yang 3767 (PPI); Hsinchu county: Yuanyanghu, 1670 m alt., 28 Apr 1995, K. Y. Wang et al. 1059 (HAST); Hualien county: Mt. Muh-kwa, 24 Jul 1961, M. T. Kao K4146 (TAI); Lanshan, 1 Apr 1994, Y. C. Sun 236 (TAIE); Hoping forest track, 1700-2000 m alt., 24 May 1993, S. F. Huang et al. 5128 (TAI); near Shihtung suspension bridge of Patungkuan ancient trail; 1500-1800 m alt., 7 Apr 2009, J. C. Wu 328 (PPI); Taitung county: Hsiangyang in forest, 2350 m alt., 24 Jul 1988, C. I Peng et al. 11876 (HAST); Ilan county: Mt. Taipingshan, 1970 m alt., 3 Apr 1986, T. C. Huang 10813 (TAI); Nan-shan to Chi-li-ting, 1200-1400 m alt., 20 Aug 1969, C. C. Hsu 5834 (TAI); Mt. Nanakotaizan, 14 Jul 1937, SH1330 (PPI); Kaohsiung city: Kuaiku, 5 May 2006, C. M. Wang et al. 8857 (TNM); Chungtzukuan, 20 Dec 2000, S. Z. Yang 25492 (TAIF); Tienchi to Chungchikuang trail, 2000-2400 m alt., 14 Jul 2000, C. C. Hsu 56 (PPI); Nantou county: Tienchi, 16 Jun 1996, S. T. Chiu et al. 3363 (TNM); Tatachiaanbu to entrance of Yushan, 23 Jul 2009, C. T. Chao 838 (TCF); highway no. 18, Tatachia to Shihshan, 24 Jul 2009, C. T. Chao 857 (TCF); Yunhai, 8 May 2004, T. Y. A. Yang 16440 (TNM); May-fong, 17 Apr 1980, Ou & Kao 9316 (TAI); Kun-yang to Yuan-feng, 2700-3000 m alt., 9 Apr 1988, J. C. Wang 5091 (TAI); New Taipei city: Peichatienshan, 26 Feb 2002, S. W. Chung 5134 (TAIF); Pingtung county: en route to Tawushan, 1600-2100 m alt., 16 Jul 1988, T. C. Huang et al. 13618 (TAI); Peitawushan, 1500-1800 m alt., 5 Apr 1997, D. W. Liu 372 (PPI); same loc. 2050-2100 m alt., 29 May 1997, P. F. Sun 56 (PPI); Taichung city: Chinshan-Paikushan, 1 May 1992, H. M. Chang Hunter 14 (TNM); Nankotaizan, Kirittoi to Ekizyu no aida, 8 Jul 1937, H. Simada SH 1308 (TAI); Taitung county: Kuei-hu, 1600 m alt., 29 Jul 1967, C. C. Hsu 3362 (TAI); Hsiangyang, 2200 m alt., 2 Apr 1996, T. Y. Aleck Yang et al. 6451 (PPI, TNM); Chinlunhsi, 1400-1700 m alt., 10 Mar 2007, J. J. Chen 360 (PPI); Taoyuan city: Paling–Lalashan, 17 Apr 1986, T. Y. Yang et al. 2913 (TNM); Lalashan, 10 Apr 2002, S. C. Wu 2608 (TAI);

Figures

Figure 7. Disporum sessile var. intermedium. A habit B leaf adaxial surface B ' leaf abaxial surface C flower D flower section (with tepals and stamen removed) E tepal outer surface F tepal inner surface G stamen H pistil I fruit.

Figure 8. Disporum sessile var. intermedium. A habitat B habit C leaf adaxial surface D leaf abaxial surface E inflorescence F flower G flower section (with tepals and stamen removed) H tepal outer surface I tepal inner surface J stamen K pistil.