Acanthaceae (PDF)

418ACANTHACEAEPerilepta refracta (D. Fang, Y. G. Wei & J. Murata) C. Y.Wu & C. C. Hu; Strobilanthes refracta D. Fang, Y. G. Wei & J.Murata.Subshrubs 1–2 m tall, anisophyllous, drying blackish.Stems 4-angled, sulcate, brownish puberulent. Petiole 0.2–2.5cm, brownish puberulent; leaf blade ovate to rarely obovateelliptic,(2–)4.5–21 × (1–)2.5–9.5 cm, both surfaces denselycovered with cystoliths, abaxially puberulent along veins, adaxiallyglabrous, secondary veins 4–12 on each side of midvein,base cuneate, margin subentire to crenulate, apex shortly acuminate.Inflorescences axillary, spikes, 1.5–3 cm; bracts oblong-obovatewith a broad base, ca. 11 × 4–5 mm, concave,rigid, abaxially pubescent and with marginal cilia of rigidbrown trichomes, apex acute and becoming reflexed; bracteoleslinear, 10–12 × ca. 1 mm, apically brownish pubescent, apexoften reflexed. Flowers imbricate on rachis. Calyx 1.2–1.5 cm,subequally 5-lobed; lobes lanceolate, ca. 10 × 1 mm, pubescentwith rigid trichomes, apex acuminate. Corolla purple, ca. 4 cm,slightly curved, outside glabrous, inside glabrous except for trichomesretaining style; tube basally cylindric and narrow for ca.1 cm then gradually widened to ca. 2 cm at mouth; lobes ovate,ca. 5 mm, apex emarginate. Stamens 4, included; shorter filamentpair ca. 3 mm, glabrous; longer filament pair ca. 7 mm,pilose; anther thecae oblong, 3–3.5 mm. Ovary hirsute at tip;style ca. 2.7 cm, pilose; stigma obconical. Capsule not seen. Fl.Dec.Forests in valleys; 300–500 m. Guangxi, Yunnan [Vietnam].93. Strobilanthes nobilis C. B. Clarke in J. D. Hooker, Fl. Brit.India 4: 471. 1884.沙 坝 马 蓝 sha ba ma lanStrobilanthes petelotii Benoist.Herbs 50–100 cm tall, perennial, isophyllous, dryingblackish. Stems ± 4-angled, sulcate, reddish brown pubescent,apically with distinctive scattered wartlike excrescences. Petiole1–1.5 cm or leaves sessile; leaf blade ovate-lanceolate to oblong-elliptic,sometimes pandurate, 7–17(–25) × 3.5–8 cm, glabrousor thinly pilose especially on abaxial veins, margin, andadaxial surface, abaxially paler, adaxially with cystoliths, secondaryveins 6 or 7 on each side of midvein and somewhat parallel,base cuneate to rounded and auriculate, margin crenate,apex shortly acuminate. Inflorescences axillary or terminal,simple or basally branched spikes, 5–20 cm, often forming apanicle when mature; rachis reddish brown puberulent, apicallybecoming very slender; bracts lanceolate, 1.5–2 × 0.2–0.4 cm,persistent, glabrous except for ciliolate margin, occasionallydeveloping stipitate glands when mature, 1-veined, apex longacuminate; bracteoles similar to bracts but narrowly linear-lanceolate,ca. 18 × 1 mm. Flowers 1–1.5 cm apart on rachis andapically not very confluent. Calyx 1–2.2 cm, accrescent in fruit,5-lobed almost to base; lobes linear, 14–20 × ca. 1 mm, equal,occasionally developing stipitate glands when mature, marginciliolate, apex finely acuminate. Corolla blue, ca. 3 cm, outsideglabrous, inside glabrous except for trichomes retaining style;tube basally cylindric and ca. 2.5 mm wide for ca. 7 mm thenstrongly bent and abruptly widened to 1–1.4 cm at mouth; lobesovate, ca. 4 × 4 mm, apex emarginate. Stamens 4, included;shorter filament pair 2–3 mm, glabrous; longer filament pair ca.7 mm, basally pilose; anther thecae oblong, ca. 3 × 1.2 mm;pollen type 3. Ovary glabrous, with 2 ovules per locule; styleca. 2.5 cm, pilose. Capsule 1.2–2.2 cm, glabrous, 4-seeded.Seeds ovate in outline, ca. 3 × 2.5 mm, densely appressed pubescent;areola small. Fl. Sep–Nov, fr. Mar.Streamsides, forests; 1100–1800 m. Yunnan [India, Myanmar,Vietnam].94. Strobilanthes polyneuros C. B. Clarke ex W. W. Smith,Notes Roy. Bot. Gard. Edinburgh 10: 198. 1918.多 脉 马 蓝 duo mai ma lanShrubs to 2 m tall, isophyllous. Stems 4-angled, sulcate,glabrous. Petiole 1–5 cm, sulcate, subglabrous; leaf blade ellipticto broadly lanceolate, 13–30 × 5–11 cm, glabrous, abaxiallypaler, adaxially with numerous cystoliths, secondary veins 12–20 on each side of midvein and parallel, base cuneate, marginserrate, apex acuminate. Inflorescences axillary, spikes, 2–8 cm,composed of 1–5 simple dense spikes arising at apex of peduncleforming a dense cluster of spikes; peduncle ca. 1 cm, puberulentand sometimes with warty excrescences; sterile bractsovate at base of spike, ca. 1 × 0.5 cm; floral bracts lanceolate,1.5–3 × 0.3–0.4 cm, abaxially minutely puberulent, apex finelyacuminate and slightly incurved; bracteoles linear-lanceolate,ca. 2 cm, minutely puberulent, apex acuminate. Flowers imbricateon rachis. Calyx 1.7–2.3 cm, somewhat accrescent andsometimes becoming gland-tipped pilose at maturity, 5-lobedalmost to base; lobes linear-lanceolate, thinly puberulent, apexfinely acuminate. Corolla purple, 3.5–4 cm, straight, outsidesparsely pilose, inside glabrous except for trichomes retainingstyle; tube basally cylindric and ca. 3 mm wide for ca. 1.4 cmthen gradually widened to ca. 1.4 cm at mouth; lobes orbicular,ca. 6 mm in diam. Stamens 4, included; filaments glabrous,shorter pair ca. 2 mm, longer pair ca. 5 mm; anther thecaeoblong, ca. 3.5 × 1 mm; pollen type 3. Ovary sparsely glandtippedpilose at tip; style ca. 3.5 cm, pilose. Capsule ca. 20 × 3mm, glabrous or with a very few apical trichomes, 4-seeded.Seeds ovate in outline, 3–5 × 2–4 mm, densely appressed pubescent.Fl. Oct–Jan, fr. Mar.Forests; 200–1600 m. Yunnan [Myanmar, Thailand, Vietnam].95. Strobilanthes bipartita Terao ex J. R. I. Wood, Kew Bull.58: 122. 2003.双 萼 马 蓝 shuang e ma lanSubshrubs 50–100 cm tall, isophyllous. Stems terete, glabrous.Petiole 0.7–1.5 cm, sparsely brown pilose; leaf bladeelliptic, 6–22 × 3.5–10 cm, hirsute especially along veins, abaxiallycystoliths prominent, secondary veins 12–16 on each sideof midvein, base cuneate, margin remotely serrate, apex acute.Inflorescences axillary or terminal, abbreviated to headlikespikes, ca. 2 cm; peduncle 2–4 mm, brown pubescent; bractsovate, 3–3.5 × 1.2–1.7 cm, glabrous except for ciliate margin,margin entire or apically serrate, apex acute; bracteoles oblonglanceolate,ca. 15 × 3 mm, glabrous. Calyx with appressed silkytrichomes on both surfaces, 2-lipped; lower lip ca. 1.2 cm, 2-lobed, lobes triangular and ca. 1.5 × 1.5 mm; upper lip ca. 1.3cm, 3-dentate to ca. 1 mm. Corolla purplish blue, ca. 4 cm, ventricose,outside glabrous, inside glabrous except for trichomes