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FOC | Family List | FOC Vol. 18 | Gesneriaceae

42. Ornithoboea Parish ex C. B. Clarke in A. de Candolle & C. de Candolle, Monogr. Phan. 5: 147. 1883.

喜雀苣苔属 xi que ju tai shu

Brachiostemon Handel-Mazzetti; Sinoboea W. Y. Chun.

Herbs, perennial, epipetric or terrestrial, rhizomatous. Stems simple or branched. Leaves few, along stem, opposite, equal to unequal in a pair; leaf blade puberulent to woolly, base rounded to cordate. Inflorescences lax, axillary, few- to many-flowered cymes; bracts 2, opposite. Calyx actinomorphic, 5-sect from base or near base; segments equal. Corolla blue to purplish, zygomorphic, inside bearded, outside oblique, campanulate, not swollen, shorter than limb, 2.2-8 mm in diam.; limb 2-lipped; adaxial lip 2-lobed; usually shorter than or occasionally equalling abaxial lip; abaxial lip 3-lobed, lobes equal or subequal, apex rounded. Stamens 2, adnate to abaxial side of corolla tube near base, included; anthers dorsifixed, coherent, thecae divaricate, confluent at apex, dehiscing longitudinally from straight or arcuate slits; connective not projecting; staminodes 2(or 3), adnate to adaxial side of corolla tube. Disc inconspicuous or ringlike. Ovary ovoid to ovoid-conical, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigma 1, terminal, capitate, undivided. Capsule straight in relation to pedicel, narrowly oblong, slightly to 2 X longer than calyx, dehiscing loculicidally to base; valves 2 or 4, spirally twisted. Seeds unappendaged.

About 11 species: China, Malaysia, E Myanmar, Thailand, Vietnam; five species in China.

1 Filaments forked toward apex, 1 branch with fertile anther, other with a thick yellow knob; calyx segments spreading; bracts 4-7 mm.   (2)
+ Filaments simple; calyx segments reflexed; bracts inconspicuous or 2-4 mm.   (3)
2 (1) Calyx 7-14 mm, pubescent to villous outside; staminodes 2; corolla abaxial lip lobes oblong; peduncle and pedicel villous   4 Ornithoboea wildeana
+ Calyx 6-8 mm, puberulent outside; staminodes 3; corolla abaxial lip lobes triangular; peduncle and pedicel densely pubescent   5 Ornithoboea calcicola
3 (1) Stem, abaxial leaf blade surface, and peduncle cobwebby-woolly; bracts inconspicuous; calyx segments 8-10 mm; staminodes 3   1 Ornithoboea arachnoidea
+ Stem, abaxial leaf blade surface, and peduncle puberulent or pubescent to villous; bracts 2-4 mm; calyx segments 3.5-6 mm; staminodes 2.   (4)
4 (3) Peduncle 1.8-7 cm; calyx segments 1-2 mm wide   2 Ornithoboea feddei
+ Peduncle 0.8-1.5 cm; calyx segments 2-2.5 mm wide   3 Ornithoboea henryi

Lower Taxa


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