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烏竹

來自 植物智 的圖片

中文名:烏竹

界:植物界

門:被子植物門Angiospermae

綱:單子葉植物綱 Monocotyledoneae

目:禾本目Graminales

科:禾本科Gramineae

亞 科:竹亞科Bambusoideae

族:簕竹超族BAMBUSATAE

倭竹族SHIBATAEEAE

亞 族:剛竹亞族

屬:剛竹屬Phyllostachys

組:剛竹組Sect. Phyllostachys

拼 音:wuzhu

中文學名:Phyllostachys

varioauriculata

烏竹(wū zhú),學名:Phyllostachys varioauriculata S. C. Li et S. H Wu,異名:Phyllostachys hispida ,為禾本科剛竹屬下的一個種。產安徽舒城杭州植物園有栽培。模式標本采自安徽舒城。 [1]

目錄

烏竹形態特徵

竿直立,高3-4米,粗1.1-3厘米,表面有不規則細縱溝;最長節間長30厘米,幼竿綠色帶紫,微被白粉,有毛,粗糙,節下方白粉環明顯,老竿綠色或灰綠色;

竿環隆起,高於籜環;節內長3毫米。籜鞘薄紙質,暗綠紫色,先端有乳白色或淡紫色放射狀縱條紋,並有灰白色密集小剛毛和白粉,邊緣生纖毛;

竿下部籜鞘的上端有稀疏至稍密的棕色小點;籜耳紫色,鐮刀形或微弱,或僅在一側發達,耳繸與鞘口着生數條彎曲的繸毛;籜舌截平或微呈拱形,暗紫色,先端不整齊;

邊緣有紫色至白色纖毛呈流蘇狀;籜片直立,狹三角形至披針形,基部較寬,僅略窄於籜鞘頂部;綠紫色。末級小枝通常具2葉,寬0.9-1.5厘米;

葉耳微弱,鞘口有數條脫落性繸毛;葉片線形或線狀披針形,長5-11厘米,寬0.9-1.1厘米,下表面基部微被毛。筍期4月中旬。

Culms 3–4 m, 1–3 cm in diam.; internodes initially purple-green, becoming green or gray-green in age, ca. 30 cm, thinly white powdery, pilosulose, scabrous; nodal ridge raised, more prominent than sheath scar; intranode ca. 3 mm.

Culm sheaths dark green-purple, with milky-white or purplish stripes, at lower nodes distally scattered with small, brown spots, white powdery, distally densely strigose; auricles purple, falcate or small, often only one developed; oral setae flexuose; ligule dark purple, truncate or arcuate, erose, purple or white ciliate; blade purple-green, narrowly triangular to lanceolate, base slightly narrower than apex of sheath.

Leaves usually 2 per ultimate branch; auricles minute; oral setae deciduous; blade adaxially dark green, 5–11 × 0.9–1.5 cm, abaxially glaucous. Infloresence not known. New shoots Apr.

分類文獻

Phyllostachys varioauriculata S. C. Li et S. H. Wu in Journ.Anhui Agr. Coll. 1981 (2):49. 1981.——P. hispida S. C. Li et al. in Act. Phytotax. Sin. 20 (4): 492,493. f. 1.1982.

烏竹分布範圍

產安徽舒城,杭州植物園有栽培。模式標本采自安徽舒城。

烏竹主要價值

本種竿型不大,竿壁厚,篾性差,用途一般。

參考來源

  1. 烏竹, 植物智, 2020-01-18