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FOC | Family List | FOC Vol. 18 | Gesneriaceae | Isometrum

9. Isometrum lancifolium (Franchet) K. Y. Pan, Acta Bot. Yunnan. 8: 30. 1986.

紫花金盏苣苔 zi hua jin zhan ju tai

Petiole to 8 cm, densely brown villous to woolly; leaf blade oblong to narrowly lanceolate or ovate, 2-14 X 0.9-3.7 cm, adaxially pale brown villous and puberulent to glabrescent, abaxially rust-brown villous, base narrowly cuneate to truncate, margin sinuous to irregularly serrate, dentate, sparsely denticulate, or subentire, apex acute to obtuse; lateral veins 6-10 on each side of midrib, distinct or indistinct. Peduncle 5-22 cm, brown villous or glandular puberulent and villous; bracts 4-12 mm, brown villous to pubescent, margin entire. Pedicel 1-2.2 cm. Calyx segments lanceolate, 2-5 mm, margin entire. Corolla pale purple to purple, 0.8-2 cm, outside glandular pubescent, sometimes only near base; tube narrowly urceolate, 6-11 X ca. 3 mm; adaxial lip lobes oblong, 1-4 X 1.5-2.5 mm; abaxial lip lobes suborbicular, 1.7-4 X 1-2.5 mm. Stamens 4-10 mm; filaments glabrous, rarely pubescent; anthers coherent in pairs, thecae not confluent; staminode ca. 1 mm. Pistil 5-10 mm, glabrous; ovary 3-8 mm. Capsule 1.6-3.5 cm. Fl. Jul-Sep, fr. Sep.

* Shady, damp rocks in forests; 1100-2800 m. NW Sichuan.

1 Corolla 1.6-2 cm, adaxial lip nearly as long as abaxial; stamens 8-10 mm; pistil ca. 1 cm; leaf blade adaxially puberulent   9c var. tsingchengshanicum
+ Corolla 0.8-1.2 cm, adaxial lip distinctly longer than abaxial; stamens 4-5 mm; pistil 5-6 mm; leaf blade adaxially pale brown villous and puberulent or sparsely brown villous to glabrescent.   (2)
2 (1) Peduncle 5-20 cm; petiole to 8 cm; leaf blade narrowly lanceolate to ovate-elliptic, 3.5-14 X 2-3.7 cm, base cuneate to truncate; lateral veins distinct   9a var. lancifolium
+ Peduncle 6-9 cm; petiole to 2.5 cm; leaf blade oblong to oblanceolate, 2-4 X 0.9-1.5 cm, base narrowly cuneate; lateral veins indistinct   9b var. mucronatum

Lower Taxa


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