The Basic Types of Flowers of Chinese Gramineae and Their Systematic Relevance

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The Basic Types of Flowers of Chinese Gramineae and Their Systematic Relevance

Wang Shi-Jin, Li Jian-Hua

(Northwest Plateau Institute of Biology, Academia Sinica, Xining)

Received:1900-01-01 Revised:1900-01-01 Online:1989-07-10 Published:1989-07-10
Contact: Wang Shi-Jin

Abstract

Abstract:

The flowers of the representative species of 33 tribes and 174 genera were

investigated for the purpose of Gramineae systematics. Discussed in this paper are ten impor-

tant flower characters, 6 of which are of the pistil, two of the androecium and two of the lodi-

cule. The morphology of lodicules is of particularly great value in systematics, it consisting of

nine forms: membranous-flattend, tongue-shaped, chaffy-peltate, hooded or helmet-shaped,

spade-like, longitudinally folded, cucullate, top-shaped and funnel-thaped. Its numbers per flo-

wer may be: numerous, triple, dual, single and absent. On the basis of these ten characters,

three major types and seven subtypes of the flowers of Gramineae may be recognized: Bam-

busoid (including True Bambusoid, Oryzoid, Arundinoid, Stipoid), pooid (with Subtype Po-

oid only) and Panicoid (including Eragrostoid, True Panicoid). As a result, The major groups

corresponding to the flower basic types agree wih those divided according to the basic types of

seedlings and caryopses. They are seven subfamilies: Banbusoideae, Oryzoideae, Arandinoi

deae, Stipoideae, Pooideae, Eragrostoideae and Panicoideae.

Key words: Gramineae, Flower, Systematics

Wang Shi-Jin, Li Jian-Hua. The Basic Types of Flowers of Chinese Gramineae and Their Systematic Relevance[J]. .

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