Plant Diversity ›› 2010, Vol. 32 ›› Issue (4): 296-302.DOI: 10.3724/SP.J.1143.2010.10019

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Floral Organogenesis of Reineckia carnea (Convallariaceae) and Its Systematic Significance

 CHEN  Yu-Xia-1,   Gao-Cui-1,   Bao-Ying-1,   Feng-Min-2, LU  An-Min-2   

  1. 1 College of Life Science, Qufu Normal University, Qufu 273165, China; 2 State Key Laboratory of Systematic
    and Evolutionary Botany, Chinese Academy of Sciences, Beijing 100093, China
  • Received:2010-01-18 Online:2010-08-25 Published:2010-05-14


The floral organogenesis of Reineckia carnea (Convallariaceae) was observed under scanning electron microscope. The tepal and stamen primordia of Rcarnea initiated in a reversed unidirection type. The tepals, partly fused with filaments, formed a short tube at the late stage. Carpel primordia initiated, which overlapped by tepal and stamen primordia, by the same pattern, then fused into a syncarpous gynoecium. The flowers on the tip of inflorescences were prone to vary in floral organ numbers. Considering the floral organogenesis traits of Rcarnea in early stages and floral organ number variation, tepals and stamens should differentiate from common primordia. Characters of the floral organogenesis pattern and perianth tube formation time of Reineckia, Speirantha and Convallaria, revealed that Convallaria was more derived among them, and Speirantha was more primitive than Reineckia.

Key words:  Reineckia, Floral organogenesis, Systematics

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