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FOC | Family List | FOC Vol. 22 | Poaceae | Indocalamus

21. Indocalamus pedalis (Keng) P. C. Keng, Techn. Bull. Natl. Forest. Res. Bur. 8: 12. 1948.

矮箬竹 ai ruo zhu

Arundinaria pedalis Keng, J. Wash. Acad. Sci. 36: 84. 1946.

Culms ca. 30 cm, ca. 2 mm in diam.; lower internodes 1–5 cm, initially with a pubescent ring below each node; nodes prominent. Culm sheaths striate, 2–4.5 cm, initially basally pubescent; auricles absent; ligule truncate, ca. 0.3 mm, rigid, margin glabrous. Leaves 2–4 per ultimate branch; sheath brown strigose near upper margins, margins pale brown ciliate; auricles and oral setae absent; ligule truncate, ca. 0.5 mm, brown fimbriate; pseudopetiole 1–4 mm; blade lanceolate, 6.5–15 × 0.9–1.7 cm, glabrous or abaxially initially puberulent, secondary veins 4–6-paired, tessellations rectangular, base broadly cuneate, apex acuminate. Panicle or raceme 8–11 cm; spikelets 4–8; axis and branches brown pubescent. Spikelets brown or dark brown, 2–6 × 0.3–0.5 cm; pedicel erect or ascendant, weakly compressed; florets 4–11. Rachilla internodes 4–5.3 mm, flat on side facing floret, margins brown ciliate. Glumes 3 or 4, distally pubescent; lower glume 4–5 mm, 3–5-veined; second glume 5.5–6 mm, 7-veined; third and fourth glumes 7–8 mm; lemma ovate-lanceolate, 7–11 mm, 11-veined, apex subulate; callus ca. 0.5 mm, densely pale pubescent, hairs ca. 0.8 mm; palea lanceolate, 8–9 mm, or about as long as lemma, keels puberulent, minutely setose at apex; lodicules red-brown, oblong-lanceolate, or lateral ones subovate, ca. 3 mm, basally veined, upper margin ciliate. Anthers black or purple, 5–6 mm. Stigmas gray-white or milky-white, ca. 3 mm. Inflorescence unknown.

* Fissures of rocky hillsides. Sichuan.


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