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Reproduction and Embryo Development in Texas Wildrice (Zizania texana Hitchc.)

W. H. P. Emery and Michael N. Guy
Bulletin of the Torrey Botanical Club
Vol. 106, No. 1 (Jan. - Mar., 1979), pp. 29-31
Published by: Torrey Botanical Society
DOI: 10.2307/2484377
Stable URL: http://www.jstor.org/stable/2484377
Page Count: 3
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Reproduction and Embryo Development in Texas Wildrice (Zizania texana Hitchc.)
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Abstract

Cytological studies of sporogenesis, gametogenesis and early embryology were undertaken to ascertain the status of the sexual reproductive potential in Texas Wildrice, an endangered endemic of the San Marcos River, Hays County, Texas. Megasporogenesis and megagametogenesis appear normal and conform closely to observations of other members of the genus. Microsporogenesis and microgametogenesis, pollination and early embryo development also appear regular. The present condition of the species is attributed to environmental rather than cytological factors.

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