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萌芽松Pinus echinata

时间:2013-07-15 15:57来源:未知 作者:徐晔春 点击:
萌芽松,Pinus echinata




中文名(Chinese Name):萌芽松
学名(Scientific Name):Pinus echinata Mill.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Pinus variabilis (Aiton) Lamb.  Pinus squarrosa Walter  Pinus royleana Jamieson ex Lindl.  Pinus mitis Michx.  Pinus taeda var. echinata (Mill.) Castigl.  Pinus virginiana var. echinata (Mill.) Du Roi  Pinus taeda var. variabilis Aiton  Pinus mitis var. paupera Alph.Wood
科属(Family & Genus):松科Pinaceae松属
形态特征(Description):乔木,在原产地高达40米;树皮淡栗褐色,纵裂成鳞状块片,树干上常有不定芽萌生出许多针叶;枝条每年生长多轮,小枝较细,暗红褐色,初被白粉;芽矩圆状卵圆形,褐色,无树脂。针叶2-3针一束,长5-12厘米,较细,径微不及1毫米,深蓝绿色;横切面半圆形或三角形,单层皮下层细胞,稀有散生细胞的第二层,树脂道2-5,中生或其中1-3个内生。球果圆锥状卵圆形,长4-6厘米,具短梗或几无梗,熟时种鳞张开;种鳞的鳞盾平或微肥厚,暗褐色,鳞脐突起,有极短之刺。
分布(Distribution):原产北美。
用途(Use):
引自中国植物志英文版FOC Vol. 4 Page 19
Pinus echinata Miller, Gard. Dict., ed. 8. Pinus no. 12. 1768.
萌芽松 meng ya song  | Pinaceae  | Pinus
Trees to 40 m tall; trunk to 1.2 m d.b.h. in native range, usually with adventitious sprouts; bark red-brown, plates scaly with evident resin pockets; crown rounded-conical; 2nd-year branchlets greenish brown or red-brown, aging red-brown or gray, slender, to 5 mm in diam., roughened and cracking below leafy portion; winter buds red-brown, ovoid or cylindric, resinous. Needles 2 (or 3) per bundle, gray- or yellow-green, straight, slightly twisted, (5-)7-11(-13) cm × ca. 1 mm, stomatal lines present on all surfaces, base with persistent sheath 0.5-1(-1.5) cm. Seed cones solitary or clustered, subsessile or shortly pedunculate (peduncle to 1 cm), red-brown, aging gray, ovoid-conical when open, 4-7 cm, maturing in 2 years. Seed scales lacking contrasting dark border adaxially distally; umbo with an elongated or stout and short, sharp prickle. Seeds gray or nearly black, ellipsoid, ca. 6 mm; wing 1.2-1.6 cm.
Cultivated. Fujian (Minhou Xian), Jiangsu (Nanjing Shi), Zhejiang (Fuyang Xian) [native to SE United States]
This tree is very fast growing and is highly valued as a source of timber and wood pulp. It is also a promising species for afforestation.
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