Selaginella bryopteris (L.) Baker

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 bryopteris (L.) Baker Figs 1 (3 A–C), 9B , 14

Selaginella bryopteris (L.) Baker, J. Bot. 22(Za): 376. 1884; Iwatsuki 1988; Dixit 1992; Thapa 2002; Fraser-Jenkins et al. 2015; Fraser-Jenkins et al. 2017.

≡ Lycopodium bryopteris L., Sp. Pl. 2: 1103. 1753.

≡ Lycopodioides bryopteris (L.) Kuntze, Revis. Gen. Pl. 1: 825. 1891. Type. (lectotype, designated by Mazumdar 2017). Dillenius (1741), Historia Muscorum. P. 472, t. 66, f. 11 [icon.] (fig. 1). Epitype. (designated by Mazumdar 2017): INDIA. Jharkhand: Deoghar, Trikut Hills, 365.76 m. 11 X 1999. J. Mazumdar 72 (CAL).

= Lycopodium circinale L., in Murray, Syst. Veg. ed 13: 794. 1774.

= Lycopodium imbricatum Roxb., in Griff., Calc. J. Nat. Hist. 4: 475. 1844; non Forssk. 1775; Thapa 2002.

≡ Selaginella imbricata (Roxb.) J. Scott, J. Agr. Hort. Soc. India, n. s. 2: 260. 1868.

( Lycopodium imbricatum Roxb., Hort. Bengal.: 75. 1814, nom. nud.).

Description.

Stems 5-25 cm, suberect to erect. Rhizophores at lower and basal part stem. Main stems branched from near middle part, in basal part main stem 1.5-2.5 mm in diam. Axillary leaves slightly similar with ventral leaves, base cuneate, margin irregular, finely denticulate, 2.0-3.5 × 1.3-2.0 mm. Ventral leaves ovate, 1.5-2.0 × 1.0-1.5 mm, oblique at base, imbricate, margin denticulate, acute to acuminate at apex. Dorsal leaves ovate, 1.4-1.8 × 1.2-1.5 mm, slightly asymmetric, oblique at base, margin entire to minutely denticulate, apex acute to acuminate. Strobili rare, solitary, terminal, compact, 3-5 × 1-2.5 mm. Sporophylls monomorphic, ovate, margin entire to minutely denticulate, apex acuminate. Megaspores dull-yellow, surface verrucate, microspore yellow, surface granulate.

Ecology.

On rocks in dense forests at lower elevation. Alt. 250-1700 m.

Distribution in Nepal.

W, C, E.

Nepalese threatened status: not available data.

General distribution.

BHUTAN, INDIA (Assam, Darjeeling, Uttarakhand, NE, C and S India), ARABIA, N AFRICA.

Chromosome number.

2n=20 ( Fabbri 1965; Jermy et al. 1967).

Selected specimens examined:

Nepal.

"De la Banaoüra Khola à Balauta, alt. 400 m. 6 XI 1954. A. Zimmernann 2077" (KYO, photo).

W Nepal: HUMLA: "Between Danna and Sali Salla (the junction of Loti Gad and Humla Karnali River), dry rock on SW-facing slope, alt. 1740 m, 26 Sep 1983, H. Tabata et al. 23629 " (KYO, photo).

HUMLA, MUGU: "Between Tirthasain, Humla Dist., and Huanglu, Mugu Distr., on the trail in grassland on W-facing slope, alt. 1400 m, 5 Sep 1983, H. Tabata et al. 24648 " (KYO, photo).

SALYAN: "Salyana, alt. 5000 ft., dry earth bank beside track, 29 Mar 1952, O. Polunin, W.R. Sykes & L.H.J. Williams 667 " (US, photo; KYO, photo).

C Nepal: CHITAWAN: "damp, rocky sides of small steam-gully at Lambola Khola, c. ½ km S of Beldas (Satara Kilo) village, 18 km S. of Mugling on road to Narayanghat, S. W. of Kathmandu, alt. 350 m, 20 Jan 2000, C.R. Fraser-Jenkins 38395 (FN 4370) " (US, photo).

E Nepal: TEHRATHUM: "en route from Iwa to Majhi, on dry slope along the river, Shorea-Shima forest, 610 m, 29 Jun 1978, H. Tabata, K.R. Rajbhandari, Y. Shimizu 11989 " (PE).

DHANKUTA: "Dhankuta, 26°50'N, 87°20'E, alt. 400 m, 11 Oct 1971, J.F. Dobremez DBR NEP 1373 " (E00670572); "by River Tamur, near Suspension Bridge, alt. 1000 ft, 18 Sep 1961, A.H. Norkett 5094 " (BM001022383).

TAPLEJUNG: "Tamur Bridge, alt. 250-300 m. 4 Sep 1977, H. Ohashi et al. 773141 " (TI, photo).

Figures

Figure 1. Morphological diversity of the leaves of Nepalese Sealginella species: 1 A-C S. indica (Nakaike 1325, PE) 2 A-C S. pulvinata (Tabata et al. 3520, PE) 3 A-C S. bryopteris (Tabata et al. 11989, 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 14. Selaginella bryopteris (L.) Baker. A Habit, upper surface B fragment of the lateral branches showing imbricate ventral leaves C fragment of the upper surface of the lateral branch showing dorsal leaves imbricate at branch (J. F. Dobremez DBR NEP 1373, E). Link: (http: // data. rbge. org. uk / herb / E 00670572).