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

5. Strobilanthes reptans (G. Forster) Moylan ex Y. F. Deng & J. R. I. Wood, Fl. China. 19: 390. 2011.

匍匐半插花 pu fu ban cha hua

Basionym: Ruellia reptans G. Forster, Fl. Ins. Austr. 44. 1786; Hemigraphis okamotoi Masamune; H. pacifica Hosokawa; H. primulifolia (Nees) Fernández-Villar; H. reptans (G. Forster) T. Anderson ex Hemsley; H. tawadana Ohwi; R. primulifolia Nees.

Herbs to 50 cm tall, perennial, isophyllous. Stems sometimes rosette-forming but usually prostrate and rooting at nodes, sparsely to densely covered with multicellular trichomes. Petiole 0.5-8 cm, pubescent, glabrescent; leaf blade oblong, elliptic, oblong-ovate, or suborbicular, 1.5-8 × 1-4 cm, both surfaces pubescent with multicellular trichomes, secondary veins 4 or 5 on each side of midvein, base abruptly truncate to slightly cordate, margin crenate to subentire, apex acute to obtuse. Inflorescences terminal, spikes, elongating to 6-8 cm at maturity; bracts oblanceolate to elliptic, 8-12 × 2-5 mm, persistent, pubescent on veins, margin entire and ciliate; bracteoles absent. Calyx 6.5-10 mm, 5-lobed to base; lobes linear-lanceolate, ciliate and pubescent along veins, apex finely attenuate. Corolla white or pale violet with darker veins, 1.3-1.5 cm, glabrous; tube basally cylindric for 4-6 mm; lobes orbicular, 2-5 mm, glabrous. Stamens 4, included; shorter filament pair ca. 1 mm, glabrous; longer filament pair ca. 2 mm, base slightly villous; anther thecae ca. 1 mm; pollen type 7. Ovary apex pubescent; style sparsely villous. Capsule 7-9 mm, apically pubescent, 8-16-seeded. Seeds orbicular in outline, ca. 1 mm in diam., pubescent. Fl. Apr-Sep, Dec.

Weed of roadsides, ponds, and streamsides; near sea level to 400 m. Taiwan [Indonesia, Japan, Malaysia, Papua New Guinea, Philippines; Australia, Pacific islands (New Caledonia)].

The apparent earlier homonym, "Strobilanthes reptans Bojer" (Nees in Candolle, Prodr. 11: 368. 1847) was merely cited as a synonym and was therefore not validly published (Vienna Code, Art. 34.1(c)); hence it does not preclude valid publication of the new combination made here. The apparent new combination "Strobilanthes primulifolia" (Y. F. Deng & J. R. I. Wood, J. Trop. Subtrop. Bot. 18: 483. 2010), based on Ruellia primulifolia Nees, was not validly published because a full and direct reference to the place of valid publication of the basionym was not provided (Art. 33.4; "in DC., Prodr. 11: 144. 1847" was cited, but that publication cited the actual place: Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 382. 1843).

Strobilanthes reptans is an ornamental plant.


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