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长沙刚竹Phyllostachys verrucosa G. H. Ye et Z. P. Wang

长沙刚竹Phyllostachys verrucosa G. H. Ye et Z. P. Wang

科名:禾本科 Gramineae

属名:刚竹属 Phyllostachys

《中国植物志》第9(1)卷257页
  5.长沙刚竹(南京大学学报)图版68:8-11
  Phyllostachys verrucosa G. H. Ye et Z. P. Wang in Journ. Nanjing Univ. (Nat. Sci. ed.)1983 (3):482. ff. 2,3. 1983.
  竿高约3米,粗约1.2厘米,幼竿密布紫色微点而使竿呈淡紫色,紧接节的上、下方其色尤深,节下方被白粉,老竿淡绿黄色;最长节间为16厘米;竿环强隆起,高于箨环;箨环最初有一圈白色长刺毛。箨鞘纸质,背面具极小斑点或近于无斑点,脉间密生疣基微刺毛因而粗糙,有时还混生长刺毛,尤以鞘顶部较密,基部明显具一圈白色长刺毛;箨耳及鞘口繸毛俱缺;箨舌狭而高,其高可达5毫米,暗紫色,先端拱形,中部强隆起,常呈啮蚀状,生白色纤毛;箨片带状或狭披针形,外翻,淡紫黄色。竿分枝处常有第三枚细小分枝。末级小枝具2或3叶,无叶耳及鞘口繸毛;叶舌高1-1.5毫米,先端拱形,边缘生极短的白色纤毛;叶片带状披针形,长7.5-9.5厘米,宽8-11毫米。两面近于无毛,惟下表面基部于中脉两侧具长柔毛笋期4月。
  产湖南长沙。模式标本采自长沙,系栽培于湖南省林业科学研究所竹园,但自何处引入已无法考证。
形态特征:竿高约3米,粗约1.2厘米,幼竿密布紫色微点而使竿呈淡紫色,紧接节的上、下方其色尤深,节下方被白粉,老竿淡绿黄色;最长节间为16厘米;竿环强隆起,高于箨环;箨环最初有一圈白色长刺毛。箨鞘纸质,背面具极小斑点或近于无斑点,脉间密生疣基微刺毛因而粗糙,有时还混生长刺毛,尤以鞘顶部较密,基部明显具一圈白色长刺毛;箨耳及鞘口继毛俱缺;箨舌狭而高,其高可达5毫米,暗紫色,先端拱形,中部强隆起,常呈啮蚀状,生白色纤毛;箨片带状或狭披针形,外翻,淡紫黄色。竿分枝处常有第三枚细小分枝。末级小枝具2或3叶,无叶耳及鞘口燧毛;叶舌高1—1.5毫米,先端拱形,边缘生极短的白色纤毛;叶片带状披针形,长7.5—9.5厘米,宽8-11毫米。两面近于无毛,惟下表面基部于中脉两侧具长柔毛笋期4月。
产地分布:产湖南长沙。模式标本采自长沙,系栽培于湖南省林业科学研究所竹园,但自何处引入已无法考证。
参考文献:PhyllostachysverrucosaG.H.YeetZ.P.WanginJourn.NanjingUniv.(Nat.Sci.Ed.)1983(3):482.Ff2,3.1983.

《Flora of China》 Vol. 22 (2006)
Phyllostachys verrucosa  G. H. Ye & Z. P. Wang
长沙刚竹   chang sha gang zhu
Culms ca. 3 m, ca. 1.2 cm in diam.; internodes purple-green with dense minute purple specks especially at both ends, to 16 cm, initially white powdery below nodes; nodal ridge elevated, more prominent than sheath scar; sheath scar initially white setose. Culm sheaths papery, ± speckled, scabrous between veins, sometimes strigose especially toward apex, base fringed with white setae, auricles and oral setae absent; ligule dark purple, arcuate, narrow, strongly prominent at middle, to 5 mm, apex usually erose, ciliate; blade reflexed, pale purple-yellow, narrowly lanceolate to linear. Branches 2 per node, usually with a 3rd much smaller branch. Leaves 2 or 3 per ultimate branch; auricles and oral setae absent; ligule arcuate, 1–3 mm, minutely ciliate; blade linear-lanceolate, 7.5–9.5 × 0.8–1 cm, abaxially proximally pubescent along midrib. Inflorescence not known. New shoots Apr.
* Cultivated. Hunan.

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