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4. Bambusa subg. Dendrocalamopsis L. C. Chia & H. L. Fung, Acta Phytotax. Sin. 18: 214. 1980.
绿竹亚属 lü zhu ya shu
Authors: De-Zhu Li & Chris Stapleton
Dendrocalamopsis Q. H. Dai & X. L. Tao.
Culm internodes usually 30–110 cm; wall usually thin, often less than 8 mm thick, but sometimes to 2 cm thick. Branches usually absent in lower culm, usually subequal. Branchlets of lower branches never specialized into thorns. Culm sheaths thickly papery; auricles absent or small, often narrowly oblong; blade deciduous, narrow, only ca. 1/3 width of sheath apex. Pseudospikelets purple-brown or bronze-colored.
Ten species: E and S China, Myanmar (Bambusa copelandii Brandis); nine species (all endemic) in China.
The genus Dendrocalamopsis was validly published when D. grandis was published, as its description satisfies the criteria for a descriptio generico-specifica (Stapleton & Xia, Taxon 53: 526–528. 2004).
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| 1 |
Culm sheaths apically narrow; blade recurved to reflexed; spikelets ovate, sometimes bilaterally compressed |
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(2) |
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Culm sheaths apically broad; blade erect; spikelets slender, subulately terete or ovate, usually not bilaterally compressed |
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(5) |
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| 2 (1) |
Culms with abbreviated basal internodes; branching from basal nodes; stigma 1. |
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79 B. bicicatricata |
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Culms without abbreviated basal internodes, not branching from basal nodes; stigmas 1–3 |
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(3) |
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| 3 (2) |
Culm sheath blade base ca. 1/3 of sheath apex. |
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77 B. stenoaurita |
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Culm sheath blade base not much narrower than sheath apex |
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(4) |
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| 4 (3) |
Culms initially pubescent; culm sheaths with minute auricles; stigmas (1 or)2–4. |
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76 B. beecheyana |
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Culms initially hispid; culm sheaths with small, reflexed auricles; stigma 1. |
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78 B. grandis |
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| 5 (1) |
Culm sheath auricles absent. |
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80 B. xueana |
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Culm sheath auricles slightly conspicuous, oblong, ovate or rounded |
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(6) |
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| 6 (5) |
Culm sheaths with unequal auricles, larger auricle ca. 2 × size of smaller one. |
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75 B. basihirsuta |
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Culm sheaths with similar-sized auricles |
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(7) |
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| 7 (6) |
Culm sheath ligule 3–9 mm; culms pubescent, initially with lilac stripes. |
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72 B. variostriata |
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Culm sheath ligule ca. 1 mm; culms glabrous, green |
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(8) |
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| 8 (7) |
Spikelets slender, 3–3.7 × ca. 0.5 cm, 8–13-flowered; culm sheath base outer margin usually with an arrowlike expansion below point of attachment. |
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73 B. odashimae |
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Spikelets ovate, 2.7–3 × 0.7–1 cm, 5–9-flowered; culm sheath base without expansion. |
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74 B. oldhamii |
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Lower Taxa
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