Journal
PLANT SYSTEMATICS AND EVOLUTION
Volume 298, Issue 4, Pages 713-722Publisher
SPRINGER WIEN
DOI: 10.1007/s00606-011-0581-5
Keywords
Carpellate flower; Floral ontogeny; Schisandra chinensis; Staminate flower; Tepal development; Unisexual flower
Categories
Funding
- Chinese Academy of Sciences [KSCX2-EW-Z-2]
- National Natural Science Foundation of China [40830209, 31100171]
Ask authors/readers for more resources
The organogenesis of staminate and carpellate flowers of Schisandra chinensis (Schisandraceae) was investigated with scanning electron microscopy, with observations on the development of tepals reported for the first time. The results showed that there is no interval between the initiation of the last tepal and that of the first stamen or carpel, and that the shapes of tepal, stamen, and carpel primordia are similar. The tepals and stamens of staminate flowers are initiated acropetally in a continuous spiral Fibonacci phyllotaxis, with no carpel structures observed; the filaments are not connate. The organogenesis of the carpellate flowers is similar to that of the staminate flowers, but with no evidence of stamen development. The carpels are ascidiate without postgenital fusion. Three androecial characters of Schisandra and Kadsura are discussed in a phylogenetic context. The subglobose or obovoid androecium of Schisandra propinqua and Schisandra plena may be homologous with that in sections Kadsura and Sarcocarpon. The plesiomorphic form of the androecium within the two genera is likely to be elongate with more than ten free stamens.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available