넓은잎삼나무 (1)

측백나무과

넓은잎삼나무 (1)

대효0617 2011. 12. 29. 10:00

학명: Cunninghamia lanceolata (Lamb.) Hook.

분류: 낙우송과(Taxodiaceae)/ 측백나무과(Cupressaceae)

* APG Ⅱ system에서 낙우송과 중의 금송속은 금송과로 독립되고 나머지 속들은 모두 측백나무과로 이전되었다

학명 풀이:

Cunninghamia: Named for James Cunninghame, an 18th century surgeon in China

lanceolata: 피침형의

참조 : Araucaria bidwillii http://blog.daum.net/daehyo/7811811

사진: 2011.11.17 천리포수목원

설명: <국생정>

잎

잎은 모여나기하고 선상 피침형으로 길이 3-6㎝이며 우상으로 배열되고 표면은 윤채가 있으며 뒷면은 2개의 넓은 백색 줄이 있고 끝이 뾰족하며 밑 부분이 줄기로 흐름.

열매

구과는 둥근 달걀모양이며 길이 2.5-5㎝이고 비늘잎은 크게 자라서 실편같이 보이며 딱딱하고 뾰족한 끝이 젖혀진다. 실편은 흔적만 남으며 각 비늘잎에는 종자가 3개씩 들어있고 종자에 날개가 달리며 자엽은 2개.

꽃

꽃은 2가화로서 가지와 일년생가지 끝에 달리고 웅화수는 타원상 구형으로서 모여 달리며 자화수는 1-3개씩 달리고 길이 3-4㎝로서 둥글다.

줄기

원산지에서는 높이 35m, 지름 60cm정도 자란다. 나무껍질은 갈색이 돌며 불규칙한 조각으로 떨어지며 적색 내피가 나타남.

원산지

중국 중부 및 서부지방.

분포

남부지방에서 관상용으로 심고 있다.

형태

상록침엽교목.

크기

원산지에서는 높이 35m, 지름 60㎝정도 자란다.

꽃/번식방법

남부지방에서 관상수로 식재.

FOC 설명

Cunninghamia lanceolata (Lambert) Hooker, Bot. Mag. 54: t. 2743. 1827.

杉木 shan mu

Trees or shrubs to 50 m tall; trunk to 3 m d.b.h.; bark dark gray to dark brown, or reddish brown, longitudinally fissured, cracking into irregular flakes; crown pyramidal. Leaves glossy deep green adaxially, narrowly linear-lanceolate, straight or slightly falcate, 0.8-6.5(-7) cm × 1.5-5 mm, midvein green abaxially, 0.3-1.2 mm wide, flat with median longitudinal keel throughout, stomatal bands present on both surfaces, bands on adaxial surface 0.5-1.5 mm wide, of 7-28 rows of stomatal, white powdery or not, bands on abaxial surface 1.2-2.8 mm apart, 0.3-0.8(-1) mm from leaf margin, not or rarely white powdery, base decurrent, margin denticulate, sometimes indistinctly so, especially on old trees, with 18-55(-90) teeth per side, apex usually symmetric and spinescent, spine 0.3-2 mm. Pollen cone fascicles terminal, 1-3(-5) together, broadly obovoid, each of 8-20 cones, occasionally a few also around base of seed cone; peduncle 2-4 mm; cones narrowly oblong-conical. Seed cones terminal, 1-4 together, at pollination shortly cylindric-ovoid, ca. 12 × 8 mm, later becoming ovoid or subglobose, 1.8-4.5 × 1.2-4 cm; bracts glaucous or rather glossy, broadly ovate or triangular-ovate, base with short claw 1/5-1/2 × total length of bract, distal part gradually narrowed toward pointed apex, 1/14-1/5 × total length of bract. Seeds dark brown, oblong or narrowly ovate, 5-6 × ca. 4 mm, narrowly winged laterally. Pollination Jan-May, seed maturity Aug-Nov.

Mixed broad-leaved forests or forming small, pure stands, rocky hillsides, roadsides; 200-2800 m. Exact native distribution uncertain owing to widespread planting: Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, C and N Taiwan, Yunnan, Zhejiang [?Cambodia, Laos, N Vietnam]

A very variable species: specimens occur with spinescent or obtuse leaf apices and with or without white stomatal bands on the adaxial leaf surface. The latter character is at least partly dependent on the age of the tree and the position of the leaf on the tree: leaves exposed to sunlight have less conspicuous adaxial stomatal bands than those in shade, as do leaves of old trees. Variants also occur with strongly glaucous leaves.

The most important fast-growing timber tree of the warm regions S of the Chang Jiang valley; it is propagated by seed, cuttings, or suckers. The wood is strongly resistant to rot, is not eaten by termites, and is easily worked; it is used in constructing buildings, bridges, ships, and lamp posts, in furniture manufacture, and for wood fiber.

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200005394

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