Acanthaceae (PDF)

392ACANTHACEAE1.4–1.8 cm, pilose. Capsule ca. 1 cm, pilose at tip, 4-seeded.Seeds ca. 2 mm in diam., pilose. Fl. Jul–Sep.● Streamsides, on rocks; 700–1500 m. Sichuan.9. Strobilanthes wilsonii J. R. I. Wood & Y. F. Deng, Bot. J.Linn. Soc. 150: 371. 2006.乐 山 马 蓝 le shan ma lanHerbs to 30 cm tall, perennial, isophyllous. Stems procumbent,sulcate, glabrous, rooting at nodes; flowering branchesarising in pairs from nodes, apparently erect, 3–20 cm, sparselybifariously pilose especially apically, with reflexed whitishlarge-celled trichomes. Petiole 0.5–2 cm, bifariously hirsutewith short reflexed whitish trichomes; leaf blade narrowlyelliptic, broadly elliptic, or obovate-spatulate, 1.5–3 × 1–1.5cm, glabrous except for a few marginal trichomes near petiole,adaxially with prominent cystoliths, secondary veins 3–5 oneach side of midvein, base attenuate, margin serrate, apex veryshortly acuminate to obtuse. Inflorescences axillary or terminal,headlike spikes, 1–1.5 cm, few flowered; peduncle 0.2–1.8 cm,pilose; bracts obovate-spatulate, 4–10 × 2–6 mm, apicallydiminishing in size, abaxially glabrous, adaxially with a fewtrichomes toward base, margin basally entire and ciliate withthick white spreading trichomes and apically toothed and notciliate, apex ± obtuse; bracteoles oblanceolate to obovate-spatulate,2–3 × ca. 0.5 mm, margin ciliate with a few large white trichomesto 2 mm, apex ± rounded. Calyx ca. 4 mm, subequally5-lobed to ca. 1 mm above base; lobes pale but with a greentip, linear-oblong, ca. 3.2 × 1 mm, pilose with large-celled butmostly marginal trichomes, apex obtuse. Corolla blue, 7–8 mm,funnel-shaped, outside pilose; tube basally cylindric and ca. 1mm wide for ca. 2 mm then gradually widened to ca. 5 mm atmouth; lobes ovate, ca. 1.5 × 1.5 mm, apex acute. Stamens 4;filaments glabrous, shorter pair ca. 2 mm, longer pair ca. 4 mmand slightly exserted; anther thecae oblong, ca. 0.5 × 0.2 mm;central staminode present, ca. 1 mm; pollen type 9. Ovary pilose;style ca. 8 mm. Capsule (immature) ca. 2.5 mm, pilosewith large-celled trichomes, 4-seeded. Seeds ovate in outline,lenticular, ca. 2 × 2 mm, densely covered with appressed trichomes;areola small, glabrous. Fl. Sep–Oct.● Moist shaded places; 800–1100 m. Sichuan.10. Strobilanthes labordei H. Léveillé, Repert. Spec. Nov.Regni Veg. 12: 20. 1913.薄 叶 马 蓝 bao ye ma lanAcanthopale debilis C. B. Clarke ex S. Moore; A. labordei(H. Léveillé) Handel-Mazzetti; Championella debilis Bremekamp;C. labordei (H. Léveillé) E. Hossain; Strobilanthesdebilis Hemsley (1890), not C. B. Clarke (1885).Herbs, creeping, branched, isophyllous. Stems white villous,rooting at nodes. Petiole 5–10 mm; leaf blade ovate, 2–3 ×1.5–2 cm, both surfaces white hirsute, abaxially glaucous, adaxiallygreen and sometimes purplish dotted, secondary veins 4 or5 on each side of midvein, base broadly cuneate to rounded,margin sparsely crenulate, apex acuminate. Inflorescences terminal,abbreviated to headlike spikes, ca. 1 cm, densely coveredwith large-celled white trichomes; bracts leaflike, 1–2 cm;bracteoles linear, ca. 5 mm. Calyx 5–7 mm, 5-lobed almost tobase; lobes linear-lanceolate, densely white hirsute. Corolla purplishblue to violet, 1.5–1.8 cm, outside pubescent, inside glabrousexcept for trichomes retaining style; tube basally cylindricand narrow then gradually widened to ca. 1.2 cm at mouth;lobes oblong, ca. 3 × 3 mm, subequal, apex rounded. Stamens4; shorter filament pair ca. 3 mm; longer filament pair ca. 7mm, exserted; anther thecae ca. 1.8 × 1 mm, weakly exserted;pollen type 11. Ovary pilose at tip; style ca. 1.2 cm, pilose. Capsulenarrowly obovoid, 6–8 mm, 4-seeded, apex pilose. Seedsovate in outline, ca. 2 × 2 mm, pubescent. Fl. Aug–Dec.● Valleys, moist places; 400–1800 m. Chongqing, Guangdong,Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan.11. Strobilanthes tetrasperma (Champion ex Bentham) Druce,Rep. Bot. Soc. Exch. Club Brit. Isles 1916: 649. 1917.四 子 马 蓝 si zi ma lanRuellia tetrasperma Champion ex Bentham, Hooker’s J.Bot. Kew Gard. Misc. 5: 132. 1853; Acanthopale radicans (T.Anderson ex Bentham) C. B. Clarke ex Benoist; A. tetrasperma(Champion ex Bentham) Handel-Mazzetti; Championella tetrasperma(Champion ex Bentham) Bremekamp; Strobilanthesradicans T. Anderson ex Bentham.Herbs 30–50 cm tall, isophyllous. Stems often procumbentand rooting at base, 4-angled, sulcate, retrorsely pubescentalong sulci, glabrescent, basally slightly woody. Petiole 0.5–2.5cm, sulcate, glabrous; leaf blade ovate, elliptic, or oblong, 1.5–11 × 1–4.5 cm, glabrous, adaxially darker and densely coveredwith cystoliths, secondary veins ca. 5 on each side of midvein,base attenuate or decurrent onto petiole, margin serrate to dentate,apex acuminate to acute. Inflorescences terminal or (sometimes)axillary, short often headlike spikes, few flowered, oftenreduced to a single flower pair; bracts leaflike, obovate to spatulate,1–1.5 × 0.4–0.5 cm, sparsely pilose, pinnately veined;bracteoles linear, 5–6 × ca. 1 mm, abaxially glabrous or sparselypilose and densely covered with cystoliths. Calyx 5-lobed almostto base; lobes linear, 5–7 × ca. 1 mm, accrescent to ca. 8mm in fruit, glabrous except for large-celled trichomes on margin,densely covered with cystoliths. Corolla purple to purplishblue, funnel-shaped, 1.5–2 cm, straight, outside pubescent, insidevillous; tube basally cylindric and ca. 2 mm wide for ca. 5mm then gradually widened to ca. 1.5 cm at mouth; lobes oblong,ca. 4 × 5 mm, apex obtuse. Stamens 4, included; shorterfilament pair ca. 2 mm, glabrous; longer filament pair ca. 5 mm,sparsely pubescent; anther thecae oblong, ca. 2 mm; pollen type10. Ovary ovoid, ca. 3 mm, hispid at tip, with 4 ovules perlocule; style ca. 1.5 cm, hirsute; stigma 2-lobed, lobes unequal.Capsule oblong, 7–10 mm, apically pubescent, 4-seeded. Seedsovate in outline, ca. 2 × 2 mm, pubescent. Fl. Jul–Dec.Forests, shaded grasslands, rocks by streams, roadsides; 100–1000m. Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei,Hunan, Jiangxi, Sichuan [Vietnam].12. Strobilanthes japonica (Thunberg) Miquel, Ann. Mus. Bot.Lugduno-Batavi 2: 124. 1866.日 本 马 蓝 ri ben ma lanRuellia japonica Thunberg in Murray, Syst. Veg., ed. 14,