Selaginella remotifolia Spring, 1854

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 remotifolia Spring Figs 3 (2 A–C), 9F , 19

Selaginella remotifolia Spring, in Miq. Pl. Jungh. 3: 276. 1854; Zhang 2004; Zhang et al. 2013; Fraser-Jenkins et al. 2015; Fraser-Jenkins et al. 2017.

≡ Lycopodioides remotifolia (Spring) H.S. Kung, Fl. Sichuanica 6: 65, pl. 19. 1988 Type. INDONESIA. Sumatrae regionem sylvaticum prov. Angkolae superioris, alt. 1-3000 ft., F.W. Junghuhn (holotype: L).

= Selaginella involucrata Warb., Monsonia 1: 113, n. 28. 1900. Type. INDONESIA. Java. Forbes n. 1034 (syntype: B [20 0154220]), INDONESIA. Preanger, Mt. Tilu bei Pentalengan. Warburg 3484 (syntype: B [20 0154212]).

= Selaginella japonica Miq., Ann. Mus. Bot. Lugduno-Batavi 3(6): 185. 1867. Type. JAPAN. Detexit Keiske in prov. Owari (syntype: L [0059796]), Siebold et Textor etiam legerunt (syntypes: L [0052424], [0052430]).

Description.

Plants 15-45 cm, creeping, fertile branches erect. Rhizophores at intervals throughout length of creeping stem and branches, on dorsal side in axils of stem branches. Main stems branched above at base, 0.5-1.5 mm in diam. in lower part. Stems oval or terete, sulcate, glabrous, with single vascular bundle. Axillary leaves ovate-lanceolate or elliptic, 1.4-2.4 × 0.5-1.2 mm, base cuneate, margin slightly denticulate, apex slightly obtuse. Ventral leaves spreading, ovate-lanceolate, 1.8 –3(– 3.6) × 0.8 –1.4(– 1.7) mm, base rounded, acroscopic base not overlapping on stem and branches, margin minutely denticulate or subentire, apex acute. Dorsal leaves elliptic-lanceolate or ovate-elliptic, 1.4 –2(– 2.8) × 0.4 –0.9(– 1.2) mm, base uniauriculate, margin subentire or minutely denticulate, apex long acuminate. Strobili solitary, terminal and lateral to branches, compact, tetragonal, 3.5-6 × 1-3 mm. Sporophylls monomorphic, ovate-lanceolate, carinate, margin denticulate, apex acuminate. Megaspores gray-white, surface irregular reticulum; microspores pale yellow, surface with triangular and striped spines.

Ecology.

Terrestrial, evergreen, sub-open forest banks, previously overlooked or on slopes in shade. Alt. 1800-2650 m.

Distribution in Nepal.

C, E.

Nepalese threatened status: EN ( Fraser-Jenkins et al. 2015).

General distribution.

CHINA (Chongqing, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang), NE INDIA, INDONESIA (Sumatra), JAPAN, PHILIPPINES.

Chromosome number.

Not available data.

Selected specimens examined:

C Nepal: DOLAKHA: "between Kenja and Sivalaya, Dolakha, alt. c. 2300 m, 23 Oct 1988, T. Nakaike 3522 " (PE01722894).

KASKI: "Between Landrung and Potana, alt. 1900 m, 3 Aug 1983, H. Tabata et al. 19149 " (KYO, photo).

RAMECHAP: "between Sivalaya and Bhandar, alt. 1800-2500 m, 6 Oct 1988, T. Nakaike 3137 " (PE).

E Nepal: TEHRATHUM: "Chauki (2650 m)-Tute (2480m)-Basantapur (2300m), 27°12'35"N, 87°28'01"E - 27°07'00"N, 87°26'00"E, 17 Aug 1999, K. Fujikawa et al." (PE01722895); "Tinjure-Chauke, alt. 2700 m, 7 Aug 1972, H. Kanai et al. 725131 " (E00659376; KYO, photo); "Chauki (2650 m)-Tute (2480 m)-Basantapur (2300 m), Tinjure, alt. 2800 m, 27°12'35"N, 87°28'01"E; 27°07'00"N, 87°26'00"E, 17 Aug 1999, M. Tateno et al. 9955140 " (KATH).

SOLUKHUMBHU: "Dorange, Junbesi, Solukhumbu, alt. c. 2500 m, 20 Oct 1988, T. Nakaike 3472 " (PE).

ILAM: "Mai Pokhari, 27°00'N, 87°57'E, alt. 2000 m, 28 Sep 1971, J.F. Dobremez DBR NEP 1233 " (E00670678).

Figures

Figure 3. Morphological diversity of the leaves of Nepalese Sealginella species 1 A-C S. pallida (Nakaike 3740, PE) 2 A-C S. remotifolia (Nakaike 3522, PE) 3 A-C S. semicordata (Jenkins s. n., PE). A - Axillary leaves, B - Dorsal leaves, C - Ventral leaves. Scale bars: 0.2 mm.

Figure 9. Diversity strobili of Nepalese Selaginella species A S. indica (Nakaike 1325, PE) B S. bryopteris (Tabata et al. 11989, PE) C S. fulcrata (Nakaike 1923, PE) D S. involvens (Zhang 345, PE) E S. pallida (Nakaike 3740, PE) F S. remotifolia (Nakaike 3522, PE) G S. semicordata (Jenkins s. n., PE) H S. helvetica (Zhang 0638, PE) I S. pallidissima (Zhang 2746, PE). Scale bars: 1 mm (A-G), 2 mm (F, H-I).

Figure 19. Selaginella remotifolia Spring. A (A 1) Habit, upper surface of stem B (B 1) habit, lower surface of stem C strobilus, upper surface D fragment of the lower surface of the lateral branches E Fragment of the upper surface of the lateral branches (A, B, D, E H. Kanai et al. 725131, E; C R. C. Ching 2192, PE). Link: (http: // data. rbge. org. uk / herb / E 00659376).