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FOC | Family List | FOC Vol. 19 | Acanthaceae

26. Dicliptera Jussieu, Ann. Mus. Natl. Hist. Nat. 9: 267. 1807.

狗肝菜属 gou gan cai shu

Authors: Jia-qi Hu & Thomas F. Daniel

Diapedium K. D. Koenig.

Herbs, diffuse, annual, biennial, or perennial [or sometimes shrubs], with cystoliths; young stems ± 6-angled in cross-section. Leaves petiolate; leaf blade margin entire or subsinuate. Inflorescences of cymes in leaf axils or in terminal spikelike thyrses or panicles of thyrses. Flowers subtended by an involucre of several pairs of bracteoles (= cymule); outermost pair equal or unequal in size, usually concealing inner pair(s), calyx, and base of corolla. Calyx deeply 5-lobed; lobes narrow, equal, apex acute. Corolla pink, resupinate 180° by torsion of tube; tube slender, widened apically, limb 2-lipped; lower lip (in upper position) 3-lobed, lobes ascending cochlear in bud; upper lip (in lower position) entire or emarginate. Stamens 2, exserted from mouth of corolla; anthers 2-thecous; thecae unequally inserted to superposed, base muticous; staminodes absent. Stigma 2-cleft. Capsule substipitate or stipitate, 2-4-seeded; retinacula present; placenta with retinacula separating elastically and rising from inner capsule wall at dehiscence. Seeds lenticular, papillate, lacking trichomes.

About 100 species: tropical and temperate regions worldwide; four species (two endemic) in China.

1 Outer bracteoles oblong-lanceolate to oblanceolate, greater than 2 × as long as wide   (2)
+ Outer bracteoles elliptic, subcircular, or obovate, less than 2 × as long as wide   (3)
2 (1) Outer bracteoles oblong-lanceolate, 5-7 mm, sparsely covered with white or grayish trichomes or glabrescent; corolla ca. 0.5 cm.   1 D. bupleuroides
+ Outer bracteoles oblanceolate, 10-14 mm, densely covered with yellow trichomes; corolla ca. 1.5 cm.   2 D. induta
3 (1) Corolla pale purple, 1-1.2 cm; outer bracteoles 0.5-1.3 × 0.3-0.8 cm.   3 D. chinensis
+ Corolla pinkish red, ca. 1.8 cm; outer bracteoles 1.5-2 × 1-1.5 cm.   4 D. elegans

Lower Taxa


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