栏目

峨眉箬竹Indocalamus emeiensis Chu et Chao

峨眉箬竹Indocalamus emeiensis Chu et Chao

科名:禾本科 Gramineae

属名:箬竹属 Indocalamus

《中国植物志》第9(1)卷699页
  17.峨眉箬竹(植物分类学报)图版214:1-3
  Indocalamus emeiensis C. D. Chu et C. S. Chao in Act. Phytotax. Sin. 18(1): 25. f. 1. 1980.
  竿高1.5米,粗约8-10毫米;节间长约30厘米,中空,竿壁厚0.12-0.2毫米,幼时贴生有白色短硬毛,其上部具红棕色倒毛。箨鞘长不及节间之半,褐色,间有稻草色大小不等的斑点,密被棕色向下的疣基刺毛,毛脱落后还留存疣基,边缘生褐色纤毛;箨耳发达,呈新月形,长约6-7毫米,繸毛放射状伸展,其长为1-2厘米;箨片三角状披针形,不抱竿;箨舌宽为箨片基部的2倍,高约1毫米,先端具粗纤毛。每小枝具4-10叶;叶鞘被白色短柔毛和红棕色疣基刺毛,毛脱落后在叶鞘表面留存有疣基,边缘生纤毛;叶耳发达,亦呈新月形,繸毛作放射状伸展,后者长2-3厘米;叶舌短矮,先端具发达的长为2.5-3厘米之流苏状繸毛;叶片长圆状披针形,长16-40厘米,宽3.5-6.5厘米,先端渐尖,基部楔形,渐收缩成叶柄,叶片常多少有些两侧不对称,无毛,下表面粉绿色,次脉7-11对,小横脉形成长方格状,在叶片两面都很明显,叶缘生有向上的细锯齿而粗糙。花枝未见。
  产四川峨眉山洪椿坪,海拔1200米(模式标本产地)。
形态特征:竿高1.5米,粗约8—10毫米;节间长约30厘米,中空,竿壁厚0.12—0.2毫米,幼时贴生有白色短硬毛,其上部具红棕色倒毛。箨鞘长不及节间之半,褐色,间有稻草色大小不等的斑点,密被棕色向下的疣基刺毛,毛脱落后还留仔疣基,边缘小褐色纤毛;箨耳发达,呈新月形,长约6—7毫米,继毛放射状伸展,其长为1—2厘米;箨片三角状披针形,不抱竿;箨舌宽为箨片基部的2倍,高约1毫米,先端具粗纤毛。每小枝具4-10叶;叶鞘被白色短柔毛和红棕色疣基刺毛,毛脱落后在叶鞘表面留存有疣基,边缘生纤毛;叶耳发达,亦呈新月形,缝毛作放射状伸展,后者长2-3厘米;叶舌短矮,先端具发达的长为2.5—3厘米之流苏状缝毛;叶片长圆状披针形,长16—40厘米,宽3.5—6.5厘米,先端渐尖,基部楔形,渐收缩成叶柄,叶片片常多少有些两侧不对称,无毛,下表面粉绿色,次脉7—11对,小横脉形成长方恪状,在叶片两而部很明显,叶缘生有上的细锯齿而粗糙。花枝未见。
产地分布:产四川峨眉山洪椿坪,海拔1200米(模式标本产地)。
参考文献:IndocalamusemeiensisC.D.ChuetC.ChaoinAct.Phytotax.Sin.18(1):25.F.1.1980.

《Flora of China》 Vol. 22 (2006)
Indocalamus emeiensis  C. D. Chu & C. S. Chao
峨眉箬竹   e mei ruo zhu
Arundinaria emeiensis (C. D. Chu & C. S. Chao) Demoly.
Culms ca. 1.5 m, 0.8–1 cm in diam.; internodes ca. 30 cm, with appressed, minute, white setae intermixed with retrorse, red-brown hairs and imprints of fallen hairs on upper portion; nodes elevated. Culm sheaths brown, with straw-colored spots of various sizes, less than 1/2 as long as internodes, with dense, retrorse, brown hairs or papillae left by fallen hairs, margins brown ciliate; auricles falcate, 6–7 mm; oral setae radiate, 1–2 cm; ligule ca. 1 mm, ca. 2 × as wide as base of blade, densely ciliate; blade triangular-lanceolate, not amplexicaul. Leaves 4–10 per ultimate branch, sheath white pubescent, with red-brown striae or papillae, margins ciliate; auricles falcate; oral setae radiate, 2–3 cm; ligule very short, fringed with hairs 2.3–3 mm; blade oblong-lanceolate, usually ± asymmetrical, 16–40 × 3.5–6.5 cm, abaxially glaucous, glabrous, secondary veins 7–18 pairs, tessellations square, distinct on both surfaces, base cuneate, apex acuminate. Inflorescence unknown.
* Mountain slopes; ca. 1200 m. Sichuan.
"Indocalamus omeiensis" (C. D. Chu & C. S. Chao, Bamboo Res. 1: 7. 1981) is an orthographic variant of this name.

TOP