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Bulletin of Botanical Research ›› 2019, Vol. 39 ›› Issue (6): 801-807.doi: 10.7525/j.issn.1673-5102.2019.06.001

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Study on the Flower Morphology and Structure of Fargesia fungosa

DENG Lin1,2, HUANG Ling1, CHU Cai-Hua1, WANG Qian1, ZHAN Hui1, WANG Shu-Guang1   

  1. 1. College of life Science, Southwest Forestry University, Kunming 650224;
    2. The No.3 experimental High school of Bijie, Bijie 553100
  • Received:2019-02-28 Online:2019-11-05 Published:2019-11-16
  • Supported by:
    The National Natural Science Foundation of China(31560196);Yunnan Provincial Joint Special Project for Basic Research in Agriculture(2017FG001-092);Establishment and optimization of tissue localization of invertase in shoots(50097505)

Abstract: Fargesia fungosa was an important economic bamboo species in the genera Fargeisa.The studies on the morphology and anatomical structure of their organs were lack.In this paper, the morphology and anatomical characteristics of F.fungosa flowers were observed and analyzed. The results showed that the flowers of F.fungosa belong tothemixed inflorescence and the base of spikelets had resting bud, besides several spikelets were wrapped by the "floral bud" was formed of singal leaf. The mean length of spikelets was 3.05±0.390 cm, containing 3-7 small flowers per spikelet. The mean length of florets was 1.85±0.167 cm, with 2 glumes,1 lemma and palea, 3 lodicules, 3 stamens, and 1 pistil. The young anther wall contained epidermis, endothecium, middle layer and tapetum from outside to inside. The matureanthers were splited longitudinally for pollen releasing.The mature pollen grainsweretwo- or three-celledand with 1 germination aperture. The ovary was unilocular, superior andand lateral membranous placenta with a anatropous ovule. The stigma of pistils has two feather-liking stigmas. The anther developed abnormally, resulting abortion phenomenonin the majority of anthers.

Key words: Fargesia fungosa, anther, ovary, anther wall

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