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[[Category:Developmental biology]]

...|thallus]] between one and five [[centimeter]]s in diameter. Each [[cell (biology) |cell]] of the thallus usually contains just one [[chloroplast]] per cell. ...mella (botany)|columella]] running up the center, and a layer of [[tissue (biology)|tissue]] in between that produces spores and [[elater|pseudo-elaters]]. T

...Charales]] or stoneworts appear to be the best living illustration of that developmental step. These alga-like plants undergo an [[alternation of generations|altern * Raven, Peter H., Evert, Ray F., & Eichhorn, Susan E. (2005). ''Biology of Plants'' (7th ed.). New York: W. H. Freeman and Company. ISBN 0-7167-100

...ize of that area increases. That is, different areas will be at different developmental stages due to different local histories, particularly their times since las ...re much better understanding of the physiology, anatomy, and developmental biology than currently exists, for a great number of species, even if only the domi

...ormula will be used to represent the flower structure of a plant [[Family (biology)|family]] rather than a particular species. The following representations a ...il with a one-celled ovary, basal placenta, one style and one stigma, only developmental or phylogene tic studies will show how many carpels are present.