中国竹亚科镰序竹属一新种——匍匐镰序竹

Drepanostachyum stoloniforme S.H.Chen & Z.Z.Wang,a new species of Bambusoideae from China

报道了福建厦门园林植物园发现的中国竹亚科Bambusoideae镰序竹属一新种——匍匐镰序竹Drepanostachyum stoloniforme S.H.Chen & Z.Z.Wang。该种与坝竹D.microphyllum(Hsueh & Yi)Kengf.ex Yi相似,区别在于本种植株藤本状极明显,竿匍匐状,较细,竿直径3–6mm,竿壁厚约1mm;全竿25–55节,竿基部数节节间长5–9cm,中部节间长13–18cm,节内长1–2mm;箨舌高约0.5mm,具长约2mm的纤毛;叶舌高约3mm,具长约4mm纤毛;叶片较小,在成竹时长2–6cm,宽0.3–0.6cm,叶片次脉3–4对。

A new species of the genus Drepanostachyum Keng f. of Bambusoideae from China, D. stoloniforme S. H. Chen ＆ Z. Z. Wang, which was found to grow in Xiamen Botanical Garden, Fujian Province, is described and illustrated. The new species is similar to D. microphyllum （Hsueh ＆ Yi） Keng f. ex Yi, but differs by having distinctly thin liana, culm diameter 3-6 mm, culm wall 1 mm; 25-55 nodes in whole culm, internode of the basic culms 5-9 cm long, internode of the middle culms 13-18 cm long, joint of the node I-2 mm long; the sheath tongue about 0.5 mm high, the cilium of the sheath tongue about 2 mm long; the ligula about 3 mm high, and the cilium of the ligula about 4 mm long; the small leaf 2-6 cm lone and 0.3-0.6 cm wide in adult bamboo, and its secondary veins with 3--4 couplets.