Impatiens fugongensis K.M.Liu & Y.Y.Cong

Smets, E. F. & Janssens, S. B., 2018, Balsaminaceae of Myanmar, Blumea 63 (3), pp. 199-267 : 249

54. Impatiens fugongensis K.M.Liu & Y.Y.Cong — Map 18

Impatiens fugongensis K.M.Liu & Y.Y.Cong in Cong et al. (2008) 161; Gogoi et al. (2015b) 270. — Type: Liu & Cong 791378 (holo HNNU*; iso HNNU*, KUN*), China, north-western Yunnan Province,Fugong county,Gaoligong mountain, alt. 2200 m, on the damp cliff, 12 Oct. 2006.

Terrestrial herb, 9–10 mm tall. Stem erect to decumbent, branching at the decumbent parts, red to purple to green, pilose to densely pilose. Leaves spirally arranged. Petiole 5–10 mm long, red to green, pilose. Lamina 35–40 by 15–20 mm, ovate, apex acute, base cuneate, margin crenate, adaxial green and pilose to densely pilose, abaxial red to pale green, and glabrous, with 1–3 glands on each sides of petiole; lateral veins 6 or 7 pairs. Inflorescence axillary to subterminal, erect, 2-flowered raceme. Peduncle 9 mm long, green to purple, pilose to densely pilose. Rachis 1 mm long, red to green, pilose to densely pilose. Flowers c. 7 by 11 mm, white to yellow. Bracts c. 2 by <1 mm, linear, apex acute and mucronate, base cuneate, margin entire, green, pilose. Pedicel c. 7 mm, green to reddish green, densely pilose. Lateral sepals 2, 3–4 by 1–1.5 mm, free, obliquely ovate, apex acute and mucronate, base cuneate, yellow to pale green, pilose. Lower sepal c. 5 mm long, c. 3 mm deep, deeply navicular, apex acute, yellow to white, pilose, dorsal part gradually tapering into a spiral spur, 16 mm long, yellow to red. Dorsal petal c. 5 by 4 mm, elliptic, cucullate, apex obtuse, base obtuse, yellow to white, pilose, abaxial midvein simple or with a narrow crest. Lateral united petals c. 9 mm long, free: the upper petals c. 4 by 1.5 mm, elliptic, apex acute, base cuneate, yellow to white, pink base; the lower petals c. 6 by 3 mm, free, obovate, apex round, base with distinct auricles, yellow to white, glabrous. Stamens: filaments yellow; anthers yellow. Ovary 2 mm long, <1 mm diam, green, glabrous. Fruits fusiform, glabrous. Seeds unknown.

Phenology — Flowering: October; fruiting: October.

Distribution — Myanmar (Kachin State), China (Yunnan State), India ( Gogoi et al. 2015b).

Ecology — Growing in open areas in mixed deciduous forest.

Other collections examined. MYANMAR, Kachin State, Armstrong et al. 756 (NY NY2648696*), Putao district, Naungmung Township,buffer zone of Hkakabo Razi National Park , between Hton Wan rest house and Khe Dam rest house, N27.5298° E98.0437°, alt. 2008 m, 17 Oct. 2015; Saw­Lwin KSL1060A (L), ibid .

Note — Impatiens fugongensis is morphologically similar to I. xanthina , but differs in having a pilose stem, pilose elliptic leaves, and a bucciniform lower sepal.