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The Bambusoid Embryo: A Reappraisal

John R. Reeder
American Journal of Botany
Vol. 49, No. 6, Part 1 (Jul., 1962), pp. 639-641
Stable URL: http://www.jstor.org/stable/2439722
Page Count: 3
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The Bambusoid Embryo: A Reappraisal
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Abstract

The embryo in members of the Bambuseae is shown to have a vascular system of the festucoid type. This is contrary to a previous report in which this character was considered to be panicoid. Embryos of representatives of 9 different genera are discussed and figured. The corrected formula for the bamboo embryo is given as F + P P, and it is pointed out that on the basis of embryo structure, bamboos cannot be distinguished from those grasses designated as oryzoid-olyroid. It is suggested that these might all be included within a single subfamily, the Bambusoideae. Six genera (Bromuniola, Centotheca, Lophatherum, Megastachya, Orthoclada, and Uniola) with embryos of the formula P + P P are also discussed. This group is designated the centothecoid, and it is pointed out that they appear to be transitional between bambusoid and chloridoid-eragrostoid grasses.

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