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FOC | Family List | FOC Vol. 19 | Acanthaceae | Lepidagathis

1. Lepidagathis fasciculata (Retzius) Nees in Wallich, Pl. Asiat. Rar. 3: 95. 1832.

齿叶鳞花草 chi ye lin hua cao

Ruellia fasciculata Retzius, Observ. Bot. 4: 28. 1786.

Herbs to 40 cm tall, erect to spreading, isophyllous to anisophyllous. Stems 4-angled to 4-angled and sulcate, pubescent or glabrate. Petiole 1.5-3.5 cm; leaf blade ovate to elliptic (distalmost 1 or 2 nodes with leaves sometimes linear to linear-lanceolate), 1.3-12.5 × 0.7-5(-7) cm, 1.7-3 (6-9.5 in distalmost linear leaves when present) × as long as wide, both surfaces pubescent but trichomes sometimes sparse or restricted to midvein, secondary veins 4 or 8 or more on each side of midvein, base attenuate and decurrent onto petiole, margin entire to crenate-serrate, apex acuminate. Spikes elongate, 2-4 cm; bracts broadly ovate to ovate-oblong, 7-10 × 2.5-4.4 mm, abaxially pubescent, 1- or 3-veined, veins prominent, margin ciliate with gland-tipped and non-glandular trichomes, apex aristate; bracteoles ovate-elliptic, abaxially pubescent, margin ciliate with glandular and non-glandular trichomes. Calyx ca. 8 mm, pubescent with gland-tipped and non-glandular trichomes; posterior lobe narrowly elliptic to oblong-lanceolate, ca. 8 × 1.5-1.7 mm, 3-veined; lateral lobes lanceolate, ca. 6.5 mm; anterior lobes connate at base for 17%-25% of their length, distinct segments oblanceolate to linear and 6-6.5 mm. Corolla pinkish, 0.8-1.5 cm, outside pubescent; lower lip 2.5-4 mm, lobes ca. 1 × 0.7-1 mm. Capsule 4.5-5 mm, distally pubescent. Seeds subcircular in outline, 0.8-1.2 mm in diam. Fl. Nov-Mar, fr. Jan-May. 2n = 20.

Thickets, roadsides, streamsides. Hainan, Yunnan [Bangladesh, Laos, Malaysia, Myanmar, N Thailand].


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