Results 271 to 280 of about 6,099,180 (311)

Phylogenetic relationships of Rhododendroideae (Ericaceae)

American Journal of Botany, 1997
The Rhododendroideae are usually recognized as a subfamily within Ericaceae. This group has been considered primitive (i.e., occupying the ancestral or basal position relative to all other Ericaceae) due to the occurrence of separate petals in several taxa, deciduous corollas, and septicidally dehiscent capsules.
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Phylogenetic relationships of Proteroglyphae toxins

Toxicon, 1972
Abstract The amino acid sequences of eleven Proteroglyphae toxins were used in setting up a phylogenetic relationship between these toxins. A probable sequence of genetic events leading to this relationship is postulated.
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Classification and Phylogenetic Relationships of Chalcidoidea

Chalcidoidea have a long history that dates back to mentions by Aristotle, but with the first chalcids described as other hymenopterans by Linnaeus. As species were correctly placed in later treatments, their early family classifications were diverse, even until very recently.
John M. Heraty, Gary A.P. Gibson, Roger A. Burks, John T. Huber, James B. Woolley, Jean-Yves Rasplus, Astrid Cruaud   +6 more
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PHYLOGENETIC RELATIONSHIPS AMONG EXTANT BRACHIOPODS

Cladistics, 1995
Abstract—The monophyletic status of the Brachiopoda and phylogenetic relationships within the phylum have long been contentious issues for brachiopod systematists. The relationship of brachiopods to other lophophore‐bearing taxa is also uncertain; results from recent morphological and molecular studies are in conflict.
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Phylogenetic relationships of theJuglandaceae

Plant Systematics and Evolution, 1994
A cladistic analysis of molecular data from the chloroplast generbcL was used to examine the taxonomic relationships of the walnut family (Juglandaceae). In addition, chemical and morphological data from a previous study byHufford (1992) were incorporated, expanded, and analyzed independently and in combination with the molecular data.
L. E. Gunter, G. Kochert, D. E. Giannasi
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THE PHYLOGENETIC RELATIONSHIP OF OPHIOGLOSSACEAE

TAXON, 1988
SummaryThe systematic position of Ophioglossaceae was examined using available evidence from recent anatomical and morphological studies. Although the Ophioglossaceae are free‐sporing vascular plants like the Filicopsida, and are therefore commonly placed in that group, the character correlation of eustelic or sympodial primary vascular system of stem,
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Phylogenetic relationships of the marsupials

Geobios, 1982
Abstract A phylogeny of the Metatheria, based on the synthesis of cranial, dental, and postcranial hard morphology, and external pedal morphoclines, is presented and discussed. The expanded concept Pediomyidae includes North American Cretaceous and most Palaeogene marsupials.
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Phylogenetic Relationships of Angiosperms

2015
This chapter concentrates on angiosperms or flowering plants, which are considered the dominant land plants and sister to a group that includes all other extant seed plants. Angiosperms have a long fossil record going back to the earliest Cretaceous period, and they possibly originated during the Jurassic period more than 140 million years ago.
Walter S. Judd, Christopher S. Campbell, Elizabeth A. Kellogg, Peter F. Stevens, Michael J. Donoghue   +4 more
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Phylogenetic Relationships of the Platyrrhini

1980
The major problem addressed in this volume concerns the origin of the New World monkeys. This problem is sometimes simplified to the question of whether they came from North America or from Africa. However, the biological problem is actually more complex and can be treated as four separate hypotheses: (1) descent of platyrrhines from an omomyid ...
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PHYLOGENETIC RELATIONSHIPS OF THE SARRACENIACEAE

TAXON, 1975
Summary Other than the insectivorous nature of the three families, there is little evidence supporting an alliance between the Sarraceniaceae, Droseraceae, and Nepenthaceae. Floral morphology and embryology indicate a relationship between the Sarraceniaceae and the Theales.
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