Selaginella pennata (D. Don) 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 pennata (D. Don) Spring Figs 5 (2 A–C), 10C , 25

Selaginella pennata (D. Don) Spring, Bull. Acad. Roy. Sci. Bruxelles 10: 232. 1843; Alston 1945; 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 pennatum D. Don, Prodr. Fl. Nepal.: 18. 1824.

≡ Lycopodioides pennata (D. Don) Kuntze, Revis. Gen. Pl. 1: 827. 1891. Type. (lectotype, designated by Alston 1945) NEPAL. " Lycopodium pennatum Don Prod. Fl. Nep., Napaul, Dr. Buchanan, type specimen of Lycopodium pennatum D. Don, det. A.H.G. Alston (BM).

= Selaginella suberosa Spring, Monogr. Lycop. 1: 253, no. 191. 1850. Type. INDIA. Hindustania superiori, Gorval [error for the Khasi Hills]. Griffith s.n. (holotype: K; isotype: P?).

Description.

Stems 15-35 cm, suberect. Rhizophores long, thick, restricted to basal and lower part of main stem. Main stems branched slightly above bottom of stem, not very regularly pinnately branched. Stems terete, not sulcate or sulcate in upper part. Axillary leaves ovate, 1.4-2.3 × 0.6-1.2 mm, base exauriculate, margin ciliolate in basal part, upward subentire, or with rarely cilia. Ventral leaves oblong or oblong-ovate, 1.6-3 × 0.7-1.4 mm, base rotundate, acroscopic base rounded, not overlapping stem and branches, margin sparsely shortly ciliolate, apex acute or apiculate. Dorsal leaves elliptic, sub-falcate, oblique, entire, margin rarely ciliolate, apex aristate with arista curved. Strobili solitary or pairs, terminal, compact, 4 –10(– 12) × 2.5-5 mm. Sporophylls dimorphic, dorsal sporophylls ovate-oblong, margin denticulate, apex acute, ventral sporophylls ovate, margin entire or denticulate, apex acute. Megaspores whitish, gray or dark brown, surface globose; microspores pale yellow, surface verrucate.

Ecology.

Terrestrial, seasonally green, in mixed forests on rather dry mountain slopes. Alt. 500-2400 m.

Distribution Nepal.

C, E.

Nepalese threatened status: not available data.

General distribution.

CHINA (Yunnan), INDIA (Assam, Manipur, Meghalaya, Sikkim, West Bengal), MYANMAR, THAILAND.

Chromosome number.

Not available data.

Selected specimens examined:

C Nepal: SINDHUPALCHOK: "Patibhanjyang to Talangmarang, terrestial growing on moist sandy cliff frequent, alt. 7010 to 7800 ft. (2135-2377 m), 22 Oct 1978, V.L. Gurung, M. Gorkhali 78/680 " (KATH); "Manichur to Patibhanjyang, terrestial, growing on the shady moist place, common, alt. 7010-7800 ft. (2135-2377 m), 21 Oct 1978, V.L. Gurung, M. Gorkhali 78/604 (a) " (KATH).

DHADING: "Birjet, alt. 1620 m, on mossy rock. 4 Nov 1989. N.P. Manandhar 12962" (KATH).

RASUWA: "Mani gaon (on way to Ramche), terrestrial, grown on sandy and wetty slope by the way side abundant, alt. 1230 m, 29 Sep 1977, Mrs. V.L. Gurung et al. 77/600 " (KATH); "Mani gaon (on way to Ramche), terrestrial, grown on sandy and wetty slope by the way side abundant, alt. 1230 m, 29 Sep 1977, Mrs. V.L. Gurung et al. 77/601 " (KATH); "Rasuwa Distr.: in forest, Domen to Bompu, S. side of Langtang River, between Syabrubensi and bridge below Lama Hotel, lower Langtang Valley, alt. 1600-2200 m. 21 Aug 2001. C.R. Fraser-Jenkins & G.B. Tamang 29198 (FN 5173) " (US, photo).

KATHMANDU: "second Khola from the W. side of valley, at edge of low forest, c. 1500 m above and ¼ km S. E. of Bhangeri, above Gagal Phedim, N.W. of Sankhu, N. E. of Kathmandu, 2 Oct 2001, to C.R. Fraser-Jenkins & G.B. Tamang 29345 (FN 5320) " (US, photo).

LAMJUNG: "Phelingsanku, 28°13'N, 84°24'E, alt. 650 m, 25 Nov 1970, J.F. Dobremez DBR NEP 646 " (E00754783).

KASKI: "Dhampus, Pokhara, alt. 1000-1500 m, 10 Nov 1988, T. Nakaike 3776 " (PE01622289); "Pokhara, on S side of Phewa Tal, c. 3-4 km. W of "Fishtail Lodge" Hotel, opposite Pokhara «Lakeside» town (Baidam). "Up forested khola at and shortly west of Anadu village. 24 Sep 1997. C.R. Fraser-Jenkins 25566 (FN 1544)" (US, photo); "Pokhara to Hyenda, alt. 1000-1100 m, 20 Sep 1976, Y. Suehiro 93, 94 " (KYO, photo); "Naudanda, alt. 1300 m, 21 Sep 1976, Y. Suehiro 2040 " (KYO, photo).

TANAHUN: "among boulders by stream in forest on W. side of Khane khola valley, between Dumrekharka village and W. part of Chimkeshwori Darrah(mountain) S. of Khanekhola village, c. 3 km W of Anbu Khaireni, W. of Mugling on Damauli and Pokhara, 7 Oct 2000, C.R. Fraser-Jenkins 28630 (FN 4605)" (US, photo).

KATHMANDU: "Jarkini, alt. 1600-1700 m. 29 Sep 1986, T. Nakaike 2041 " (PE 01622288); RAMECHAP: "between Bhandar and Kenja, alt. 2100-1700 m. 7 Oct 1988, T. Nakaike 3201 " (PE 01622286);

UDAYAPUR: "vers le col de Sukhchauri, boises exposés vers l’est, 1000 m, 7 Nov 1954, A. Zimmermann 2100 " (KYO, photo).

E Nepal:

SANKHUWASABHA "Simbu, 27°22'N, 87°47'E, alt. 1800 m, 05 Oct 1971, J.F. Dobremez DBR NEP 1337 " (E00754787).

SOLUKHUMBU: "Karodo, near Kenja, Solukumbu, alt. c. 1750 m, 22 Oct 1988, T. Nakaike 3507 " (PE);

PANCHTAR: "Ektin, 27°12'N, 87°53'E, alt. 1500 m, 2 Oct 1971, J.F. Dobremez DBR NEP 1300 B " (E00670574).

MORANG: "Chisapani, on the moist place, stem red rhizome long, alt. 600 m, 26 Sep 1971, D.P. Joshi 28 " (KATH); "Chisapani, alt. 500 m, 26°50'N, 87°55'E, 26 Sep 1971, J.F. Dobremez DBR NEP 1169 " (E00670671).

Figures

Figure 5. Morphological diversity of the leaves of Nepalese Sealginella species 1 A-C S. bisulcata (Nakaike 3786, PE) 2 A-C S. pennata (Nakaike 3507, PE) 3 A-C S. chrysocaulos (Nakaike 1058, 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 25. Selaginella pennata (D. Don) Spring. A Habit, lower surface B strobilus, lower surface C fragment of the lower surface of the lateral branches (J. F. Dobremez DBR NEP 1169, E). Link: (http: // data. rbge. org. uk / herb / E 00670671).