竹类果实与淀粉形态及系统位置

中国科学院大学学报

竹类果实与淀粉形态及系统位置

温太辉, 何晓铃

(浙江省林业科学研究所，杭州)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1989-09-10 发布日期:1989-09-10
通讯作者: 温太辉

The Morphology of Fruits and Starches in Bamboos, and Its Relation to Systematic Position

Wen Tai-Hui, He Xiao-Ling

(Zhejiang Forestry lnstitute, Hangzhou)

Received:1900-01-01 Revised:1900-01-01 Online:1989-09-10 Published:1989-09-10
Contact: Wen Tai-Hui

摘要/Abstract

摘要：

本文收集了竹类5个族21属30种的竹类果实，作了外部形态与淀粉形态的研究，从而为确立

各竹属的系统分类位置提供了科学依据，进一步证实了浆果类果实不具有胚乳，从而认为Oreocalamus

(Keng，1940)，Qiongzhuea(薛纪如等，1979)，Ferrocalamus(耿伯介等，1982)与Chimonobambusa

Subg．Chimonobambusa系统位置更接近于Melocanneae(Keng，1940)。竹类果实淀粉均为复粒结

构。果实大小、淀粉粒大小与淀粉小粒相互之间有一定的联系。

关键词: 竹果, 系统, 复合淀粉粒, 淀粉小粒

Abstract:

In this article, 30 speceis of bamboos, including 19 genera in 5 tribes, were col-

lected and the morphology of fruits and starches of them was studied. The results are as fol-

lows.

I. The morphology of fruits is important in studies of systematic position in bamboos. Ac-

cording to the systems of W. Munro and G. Bentham whether the pericarp is adhesive to or

free from the seed coat may be taken as a basis of classification. It is also confirmed in this

article.

It is found in this work that all taxa with a binding pericarp and seed coat are of car-

yopsis that also has a ventral suture and hilum, while all others with a separated pericarp and

seed coat are of bacca or nut, which has no ventral suture and hilum. The former has a hard

and thin pericarp and rich endosperm, while the latter has a fleshy and thick pericarp and no

endosperm. These characteristics form a basis of classification of major groups.

II. In 1907, Brandis found that no any endosperm in matured fruit of Dinochloa, Me-

localamus, Melocanna and Ochlandra. It has been proved by Stapf in at least one genus.

We found that the baccae of Qiongzhuea, Melocanna, Ferrocalamus and Chimonobambusa Subg.

Oerocalama were empty, with no endosperm. This may be a common character of the bacca.

We believe, therefore, that the systematic position of Qiongzhuea, Ferrocalamus and Chimono-

bambusa Subg. Oreocalama is close to Melocanneae.

III. Starch grains of bamboo fruits are complex in structure. They are round or ellipsoi-

dal, consisting of 3-22 polyhedral or apple-like small grains. The morphology of starch

grains is not so important as fruit in bamboo classification, but some characteristics are of a

high value in the identification of genera and species, when they are combined with other

features. In Cephalostachyum, the starch grain is very big, with 20-40 μm in diam, and the

starch small grain is polyhedral or apple-like with 7.5-22.5 μm in diam, while in Dendro-

calamus, the starch grain is small, with 10-28.9 μm in diam. and the starch small grain is

only polyhedral, with 3-11.9 μm in diam. The morphology and size of the starch grain and

starch small grain are also different in Melocanna and Chimonobambusa Subg. Oreocalama.

IV. W. Munro’s system divided Bambuseae into three major groups according to the mor-

phology of flower and fruit. Because the material was not sufficient at that time, the system

wrongly put Cephalostachyum, Dendrocalamus into the group Bacciferea. Now it is found that

both Cephalostachyum and Dendrocalamus have a nut. Later G. Bentham found this problem

and divided the Bambuseae into four subtribes, treating Dendrocalamus as a separate subtribe,

Dendrocalamae, and putting the bacca group into another subtribe, Melocannae. It is better,

but it also has some shortcomings. Hackel, Gamble, E. G. Camus, A. Camus and Keng Pojie

all accepted the view of Bentham, placing Dendrocalamus and Melocanna into different su-

btribes or tribes.

Key words: Bamboo, Fruits, Systematics, Complex starchgrain, Small starch grain

温太辉, 何晓铃. 竹类果实与淀粉形态及系统位置[J]. 中国科学院大学学报.

Wen Tai-Hui, He Xiao-Ling. The Morphology of Fruits and Starches in Bamboos, and Its Relation to Systematic Position[J]. .

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