Smilax amamiana Z.S.Sun & P.Li, 2016

Sun, Zhong-Shuai, Zhou, Wenbin, Jin, Xin-Jie, Ohi-Toma, Tetsuo, Li, Pan & Fu, Cheng-Xin, 2016, A tale of two islands: parallel evolution of dwarfism in Smilax biflora (Smilacaceae), Phytotaxa 245 (2), pp. 89-106 : 104

publication ID

https://doi.org/ 10.11646/phytotaxa.245.2.1

persistent identifier

https://treatment.plazi.org/id/03E387D1-FFC6-A234-FF54-69E09D65FB83

treatment provided by

Felipe

scientific name

Smilax amamiana Z.S.Sun & P.Li
status

sp. nov.

Smilax amamiana Z.S.Sun & P.Li View in CoL , sp. nov. ( Fig. 8 View FIGURE 8 )

Species nova S. biflora Siebold ex Miq. affinis, sed laminarum late orbiculatum et apex retusus differt.

Type:— JAPAN. Kagoshima, Amami Island, Mt. Yuwan, along the trail in the woods, 400–650 m, 7 July 2009, P. Li, A. Naiki BQ0907244 (holotype HZU [ HZU 60086148]! isotypes PE!, TI!).

Woody perennial, deciduous. Rhizomes creeping; Stems erect, 8–30 cm long, densely branched, flexuous, ribbed, often scattered-prickly. Petioles 2–5mm long, narrowly winged for ca. 2/3 its length, abscission zone just above winged portion; tendrils 0–2mm long; leaf blade thick papery, green, whitish beneath, 3-nerved, broadly ovate to orbicular, 1.2–2.4(–3.0) × 1.4–3.0(–3.5) cm, base rounded to suddenly contracted, apex rounded to retuse, mucronate. Umbels axillary, short-pedunculate, 1–2 flowered; flowers yellow-green, the staminate tepals elliptic obliquely spreading, recurved above, about 3 mm long, the inner whorl narrowly oblong; stamens 6, ca. 1/2 length of the tepals. Berries red, globose, 4–7 mm long.

Other specimens seen (paratypes):— JAPAN. Kagoshima, Amami Island: Mt. Naon (= Mt.Yuwan ), 16 December 1900, T. Uchiyama s.n. ( TI!) ; Mt. Yuwan , 7 November 1927, S. Saito s.n. ( TI!) ; Mt. Yuwan , 7 May 1936, Y. Ito s.n. ( TI!) ; Mt. Yuwan , 19–24 December 1963, S. Sako 4892 ( TI!) ; Mt. Yuwan , 5 May 1923, G. Koidzumi s.n. ( KYO!) ; Mt. Yuwan , 1924, H. Ohba s.n. ( KYO!) ; Mt. Yuwan , 6 August 2004, H. Kong, K. Nakamura 040785–040790 ( HZU!) .

Distribution and ecology:— Smilax amamiana was known to only occur in Mt. Yuwan of Amami island till now, usually grows on mountain slopes at 400–690 m near the edge of subtropical Castanopsis -dominant evergreen forests.

Etymology:—The epithet refers to the type location of the species. Japanese name is “Amami-himekakara” ( Hotta 2013: 208).

P

Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants

A

Harvard University - Arnold Arboretum

HZU

Zhejiang University

PE

Institute of Botany, Chinese Academy of Sciences

TI

Herbarium of the Department of Botany, University of Tokyo

T

Tavera, Department of Geology and Geophysics

S

Department of Botany, Swedish Museum of Natural History

Y

Yale University

G

Conservatoire et Jardin botaniques de la Ville de Genève

KYO

Kyoto University

H

University of Helsinki

K

Royal Botanic Gardens

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Liliales

Family

Smilacaceae

Genus

Smilax

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