Globba lancangensis Y. Y. Qian
Creators: name: Sangvirotjanapat, Sunisa
name: Denduangboriphant, Jessada
name: Newman, Mark F.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Zingiberales
Zingiberaceae
Globba
Globba lancangensis

description: Globba lancangensis Y.Y.Qian
Figs 9E, 10
Acta Botanica Austro Sinica 9: 51 (Qian 1994).
Type material
Holotype CHINA • Yunnan, Lancang Lahuzu Zizhixian, Lancang; 1200 m a.s.l.; 16 Oct. 1984; Y.Y. Qian 2255 leg.; SMAO.
Isotype CHINA • Same data as for the holotype; IBSC.
Other material examined
CHINA – Lancang Lahuzu Zizhixian • Lancang; 13 Jul. 2000; K.J. Williams, Q-J. Li and Y.Y. Qian 00–241 leg.; E • Menghai, Xishuangbanna pref., Mung-Ze, near Mung-Hai city; 14 Jul. 2000; K.J. Williams and Q-J. Li 00–253 leg.; E • Liming Farm, Mengzhe; 14 Oct. 2005; S.S. Zhou 2962 leg.; QBG • Menglian, Langle village; 15 Oct. 2005; S.S. Zhou 2993 leg.; QBG.
Description
Herb 60–80 cm tall. Leaf sheaths ca 4, bladeless, leaf sheaths appearing node-like along the leafy stem; ligule ca 2 mm long, truncate or shallowly bilobed, sparsely pubescent, light green; blades 6–10, 6.5– 13 × 2.5–3 cm, sessile, oblong to narrowly elliptic, base obliquely cuneate, apex acuminate, puberulent above and below. Inflorescence, 10–20 × 5–7 cm, lax, conical sometimes secund; peduncle 1.5–3 cm long; rachis light green, minutely pubescent; bracts and bracteoles 1.5–7 × 1–2 mm, caducous, narrowly elliptic, apex acute, pubescent, light green; cincinni 5–9(–14), 1.5–6.5 cm long; pedicel ca 1 mm long. Flowers ca 3 cm long, primrose or pale yellow; ovary ca 3 mm long (⚥), ellipsoid; calyx ca 4 mm long, infundibuliform, lobes acute; floral tube 12–16 mm long, dorsal and lateral corolla lobes to 6 mm long, hooded, elliptic; lateral staminodes 11–13 × 5–7 mm, obovate, apex round, pale yellow; labellum 10–13 × 4–5 mm, triangular, bilobed, spot absent, base truncate, apex round, nectar tube ca 4 mm long; filament ca 23 mm long; anther ca 2 mm long, connective tissue, crest and appendages yellow-orange, semi-translucent, crest ca 1 mm long (shorter in Ƌ), truncate; ⚥ appendages ca 3 mm long, acuminate, bifid, upper pair bigger, decurrent to connective tissue and crest, lower pair smaller; Ƌ appendages ca 3 mm long, acuminate, bifid, upper pair only slightly bigger than lower. Fruit 7–10 × 5–7 mm, almost globose, shallowly ridged, green. Bulbils not seen.
Distribution and habitat
China (Yunnan), 1080–1350 m a.s.l.
Conservation status
Least Concern. Although G. lancangensis has a small AOO of 20 km 2 and EOO of 1897 km 2, this species occurs in the Xishuangbanna Biosphere Reserve. It may also occur in the adjoining Nam Ha reserve in Lao PDR. Surveys should be carried out to see if the species occurs in this area. The species is also in ex situ cultivation at one botanical garden (BGCI 2018).
Notes
Globba lancangensis is endemic in China. It is similar to G. insectifera in its habit, broad lateral staminodes, and labellum shape but differs by its fruit shape, the form of the leafy stem and the colour of the lateral staminodes.
description: Published as part of Sangvirotjanapat, Sunisa, Denduangboriphant, Jessada & Newman, Mark F., 2019, A taxonomic revision of Globba subsect. Nudae (Zingiberaceae), pp. 1-37 in European Journal of Taxonomy 503 on pages 25-26, DOI: 10.5852/ejt.2019.503, http://zenodo.org/record/2613035