The Botanical Review
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Historical development of the present classification of morphological types of stomates
The Botanical Review - Tập 53 - Trang 53-79 - 1987
There is a long-standing confusion between morphologic and ontogenetic classifications of stomates. The earliest scheme, by Vesque (1889) was proposed as basically ontogenetic, but it was soon widely applied to mature leaves. The ontogenetic distinction between haplocheilic and syndetocheilic stomates in gymnosperms, proposed by Florin (1931, 1933) soon suffered a similar fate. Continuing studies ......
Agricultural needs for special and extensive observations of solar radiation
The Botanical Review - Tập 30 Số 2 - Trang 263-291 - 1964
Models of Cannabis Taxonomy, Cultural Bias, and Conflicts between Scientific and Vernacular Names
The Botanical Review - Tập 83 - Trang 327-381 - 2017
Debates over Cannabis sativa L. and C. indica Lam. center on their taxonomic circumscription and rank. This perennial puzzle has been compounded by the viral spread of a vernacular nomenclature, “Sativa” and “Indica,” which does not correlate with C. sativa and C. indica. Ambiguities also envelop the epithets of wild-type Cannabis: the spontanea versus ruderalis debate (i.e., vernacular “Ruderalis......
Epiphylly in Angiosperms
The Botanical Review - Tập 44 - Trang 181-232 - 1978
Epiphylly is the occurrence of structures (leaves, shoots, inflorescences, etc.) on leaves. Although its occurrence was recognized without comment early in the history of descriptive botany, with the development of the classical shoot theory it became necessary to explain the deviation of leaves bearing epiphyllous structures (ES) from the positional criteria of this theory. Epiphyllous infloresce......
Wood fiber length as related to position in tree and growth
The Botanical Review - Tập 20 - Trang 561-575 - 1954
Allotetraploids in Patagonia with Affinities to Western North American Diploids: Did Dispersal or Genome Doubling Occur First?
The Botanical Review - Tập 78 - Trang 288-306 - 2012
Amphitropical disjunct distributions between western North America and western South America have intrigued botanists for over a century. Here, specific examples of migration and speciation are investigated using herbaceous species from the phlox family (Polemoniaceae) as a model for considering the timing of dispersal relative to speciation. Comparative DNA sequencing reveals that, in Collomia an......
The essential nature of certain minor elements for plant nutrition
The Botanical Review - Tập 2 - Trang 173-196 - 1936
The available evidence makes it quite clear that small amounts of boron and manganese are essential to the growth and health of many, if not all, species of plants. Copper and zinc have also been found to be necessary in many cases, though up to the present it is uncertain whether this need is universal. Apart from these four elements, isolated cases only of improvement due to traces of other mino......
Bacterial leaf nodule symbiosis in angiosperms with emphasis on Rubiaceae and Myrsinaceae
The Botanical Review - Tập 42 - Trang 145-214 - 1976
Over 400 species of three genera of Rubiaceae and one genus of Myrsinaceae reportedly have bacterial leaf nodules. Light and/or electron microscope studies of a few species have shown that bacteria exist in spaces within buds filled with mucilage secreted by glands. These bacteria enter substomatal chambers (Rubiaceae) or marginal hydathodes (Myrsinaceae) and establish short-lived colonies, in int......
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