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地百合属

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Any of several eastern Asian plants of the genus Aspidistra in the lily family,especially A.elatior,which has large evergreen basal leaves and small, brownish bell - shaped flowers and is widely cultivated as a houseplant.

蜘蛛抱蛋一种亚洲东部百合科蜘蛛抱蛋属植物,尤指蜘蛛抱蛋,有大的常绿基生叶和小的钟铃式黄色花,被广泛地作为室内盆栽植物养植

Elatior, which has large evergreen basal leaves and small, brownish bell-shaped flowers and is widely cultivated as a houseplant.

蜘蛛抱蛋一种亚洲东部百合科蜘蛛抱蛋属植物,尤指蜘蛛抱蛋,有大的常绿基生叶和小的钟铃式黄色花,被广泛地作为室内盆栽植物养植

Major results were summarized as follows:(1) A total of 58 tree species from 53 genera in 36 families among which 8 species were Rosaceae, 5 species were Liliaceae, 5 species were Eriaceae, 3 species were Ranunculaceae, 3 species were Compositae, 2 species were Cupressaceae, 2 species were Caprifoliaceae, 2 species were Umblliferae, and other 28 tree species were only one receptively. These were recorded in the 8 plots of the A. georgei var. smithii forest;(2) Number of families, genera, species and Margalef index correlated negatively with altitude (P.05), with a peak at 3600 m.(3) Shannon-Wiener index correlated negatively with altitude (P.01), and maintained stable at the altitudes between 3700~4100 m, evenness with altitudes, however, this trend was insignificant.(4) Jaccard index increased sharply with increasing altitude at the altitudes between 3600~4100 m, and was lower between different vegetation types at the altitudes between 4100~4200. Cody index β(subscript c decreased with an increasing altitude, but there were 2 troughs between 4000~4100 m and 4200~4300 m.(5) Maximum tree height H(subscript max and HH(subscript max=37 mcorrelated negatively with altitude (P.05); but basal area and BA BA(subscript max=5.3m^2 correlated with altitudes, however, this trend was insignificant.

结果表明:(1)在调查的8个急尖长苞冷杉林样地内共有植物58种,分属于36科53属,其中植物较多的科有蔷薇科8种、百合科5种、杜鹃花科5种、毛茛科3种、菊科3种、柏科2种、忍冬科2种、伞形科2种,其余的28科各只有1个种;(2)物种科、属、种数、Margalef指数D(下标 M与海拔存在显著的负相关性(P.05),在分布急尖长苞冷杉最低海拔3600m处出现物种丰富度的最大值;(3)多样性指数与海拔之间有极显著的负相关性(P.01),并且在3700~4100m之间多样性指数保持稳定;均匀度指数与海拔梯度之间存在负相关性,但不显著;(4)Jaccard指数C(下标 j在海拔3600~4100m随海拔的升高而升高,在生境过渡带的4100~4200m之间Jaccard指数C(下标 j较低;Cody指数β(下标 c随海拔的升高呈下降的趋势,但在4000~4100m和4200~4300m 海拔区间出现2个低谷;(5)最大树高H(下标 max和最大胸径DBH(下标 max与海拔之间存在显著负相关性(P.05);胸高断面积之和和立木密度与海拔之间存在负相关性,但不显著。

Yuzhu is the rhizome of Polygonatum odoratum Druce (Fam. Liliaceae),which is not only a common Chinese drug but also a genuine drug in Hunan.

玉竹为百合科黄精属玉竹的根茎,是一味常用中药材,也是湖南的道地药材之一。

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