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

6. Oligostachyum glabrescens (T. H. Wen) P. C. Keng & Z. P. Wang, J. Nanjing Univ., Nat. Sci. Ed. 26(3): 488. 1990 [“gla-breceus”].

屏南少穗竹 ping nan shao sui zhu

Sinobambusa glabrescens T. H. Wen, J. Bamboo Res. 1(2): 20. 1982.

Culms ca. 2 m or more, ca. 1 cm in diam.; internodes lower 1/2 flattened above branches, green, ca. 30 cm, initially with a white powdery ring below nodes; supra-nodal ridge weakly elevated; sheath scar flat, initially pubescent. Culm sheaths light green, glabrous except at base; auricles absent or small; oral setae 2 or 3, short; ligule ca. 1 mm, initially ciliolate; blade usually reflexed, lanceolate or linear-lanceolate. Leaves 3 or 4 per ultimate branch; sheath glabrous, margins densely ciliate; auricles spreading, green, small; oral setae 2 or 3; ligule ca. 1 mm, puberulent; blade lanceolate, 9–11 × 1.1–1.5 cm, abaxially puberulent, adaxially glabrous. Racemes initially terminating leafy branches, peduncle and base of inflorescence enclosed by leaf sheaths; axis and pedicels glabrous or scabrid along angles. Spikelets linear, 4–7 × ca. 0.5 cm; florets 5–11, lower 2 or 3 sometimes sterile. Glumes 2 or 3, thinner than lemma, initially pubescent, 1st small, 5–7-veined, 2nd and 3rd larger, 9–11-veined; lemma 11–14 × ca. 3 mm, scabrid, initially pubescent, transverse veins distinct, apex acuminate or mucronate; lodicules membranous, thickened at base, 5–7-veined. Stamens 3; anthers yellow, ca. 5 mm. Style short; stigmas 3. New shoots May, fl. Jun.

* Roadsides; ca. 900 m. Fujian.


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