Selaginella ciliaris (Retz.) Spring, 1843

Shalimov, Aleksandr Petrovich, Wu, Yu-Dong & Zhang, Xian-Chun, 2019, A taxonomic revision of the genus Selaginella (Selaginellaceae) from Nepal, PhytoKeys 133, pp. 1-76 : 1

Selaginella ciliaris (Retz.) Spring Figs 6 (1 A–C), 10E , 27

Selaginella ciliaris (Retz.) Spring, Bull. Acad. Roy. Sci. Bruxelles 10(1): 231, no. 136. 1843; Alston 1945; Panigrahi and Dixit 1968; Iwatsuki 1975; Iwatsuki 1988; Dixit 1992; Thapa 2002; Zhang 2004; Zhang et al. 2013; Fraser-Jenkins et al. 2015; Fraser-Jenkins et al. 2017.

≡ Lycopodium ciliare Retz., Observ. Bot. 5: 32. 1789.

≡ Lycopodioides ciliaris (Retz.) Kuntze, Revis. Gen. Pl. 2: 826. 1891, as " ciliare ". Type. SRI LANKA. E. Ceylon, König s.n. (holotype LD [1119541]; isotype: K).

= Lycopodium depressum Sw., Schrader. J. Bot. 1800(2): 119. 1801.

= Lycopodium belangeri Bory, Belang. Voy. Bot. 2: 12, t. 1, f. 2. 1833.

≡ Selaginella belangeri (Bory) Spring, Monogr. Lycop. 2: 242. no. 180. 1850.

= Selaginella exigua Spring, Monogr. Lycop. 2: 238. no. 175. 1850.

≡ Lycopodioides exigua (Spring) Kuntze, Revis. Gen. Pl. 2: 826. 1891. Type. MYANMAR. Peninsula indo-chinensi, Mergui, W. Griffith, 266 (H. Hooker) (holotype K [001067469]).

Description.

Stems 2 –5(– 8) cm, short-creeping, fertile stem often erect. Rhizophores restricted to lower branches or to middle of main stem. Main stems branched from throughout, branches simple to compound from base of stem, 0.3-0.4 mm in diam. in lower part. Stems terete, sulcate or not sulcate, primary leafy branches 3 or 4 pairs, simple or forked or once pinnately branched. Axillary leaves ovate-obtuse or ovate, 1.2-2 × 0.7-1.1 mm, base exauriculate, margin ciliolate in basal half, upward denticulate, apex slightly acute. Ventral leaves ovate or ovate-lanceolate, 1.4-2 × 1.4-2 mm, in base obtuse, acroscopic base enlarged, broader, margin ciliolate, subentire or minutely denticulate to apex, apex acute. Dorsal leaves ovate, 1.1-1.6 × 0.5-1 mm, slightly carinate, base subcordate or obtuse, margin minutely denticulate, apex acuminate or aristate. Strobili solitary, terminal, compact, 4.5-13 × 2-4.5 mm. Sporophylls dimorphic, ventral sporophylls ovate-triangular, margin ciliolate; dorsal sporophylls ovate-oblong, minutely denticulate and ciliolate. Megaspores yellowish, surface fine reticulate; microspores orange, surface less obviously verrucate.

Ecology.

On sandy and clay-slopes at the forest edge. Alt. 60-600 m.

Distribution in Nepal.

W, C, E.

Nepalese threatened status: not available data.

General distribution.

CHINA (Guangdong, Guangxi, Hainan, Taiwan, Yunnan), INDIA (Andaman and Nicobar Islands, Andhra Pradesh, Assam, Bihar, Chhattisgarh, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Odisha, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttarakhand, Uttar Pradesh, West Bengal), MYANMAR, SRI LANKA, BANGLADESH; INDONESIA (Java), PHILIPPINES, THAILAND, VIETNAM, NEW GUINEA, AUSTRALIA.

Chromosome number.

x=9; 2n=18 ( Jermy et al. 1967).

Selected specimens examined:

C Nepal: CHITAWAN: "Tigori (near Bharatpur), alt. c. 180 m, 26 Sep 1986, T. Nakaike 1910 " (PE 01622170).

Figures

Figure 6. Morphological diversity of the leaves of Nepalese Sealginella species 1 A-C S. ciliaris (s. n. 1225, PE) 2 A-C S. monospora (Tabata et al. 11051, PE) 3 A-C S. trichophylla (Lu & Zhang 27625 - B, PE). A - Axillary leaves, B - Dorsal leaves, C - Ventral leaves. Scale bars: 0.2 mm.

Figure 10. Diversity strobili of Nepalese Selaginella species A S. laxistrobila (Nakaike 1319, PE) B S. bisulcata (Nakaike 3786, PE) C S. pennata (Nakaike 3507, PE) D S. chrysocaulos (Nakaike 1058, PE) E S. ciliaris (s. n. 1225, PE) F S. monospora (Tabata et al. 11051, PE) G S. trichophylla (Lu & Zhang 27625 - B, PE) H S. repanda (Nakaike 3708, PE) I S. vaginata (Nakaike 1102, PE). Scale bars: 2 mm (A, B), 2 mm (C, D, G, H), 1 mm (E, F, I).

Figure 27. Selaginella ciliaris (Retz.) Spring A (A 1) Habit, lower surface B Strobilus, lower surface C Fragment of the lower surface of the main stem D Fragment of the upper surface of the main stem (X. C. Zhang & A. Shalimov 9274, PE).