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Topic: Rosaceae

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In the News (Sat 17 Aug 19)

  Rosaceae Phylogeny and Evolution
The primary goal of this research is to reconstruct phylogenetic relationships within the Rosaceae using both non-molecular and molecular sources of cladistic data.
The results of the cladistic studies are used to hypothesize evolution within the family, particularly the origin of the Maloideae.
The non-molecular and molecular data sets were combined in order to obtain a phylogeny for the Rosaceae that is based upon as wide a range of data as is currently available.
www.botany.utoronto.ca /faculty/dickinson/rosaceaeevolution/rosaceaeevolution.htm   (284 words)

 Rosaceae Summary
The flowers of Rosaceae are distinctive because of the presence of a hypanthium, a cup-shaped structure forming the base of the flower.
The sepals, petals, and stamens are attached to the edge of the hypanthium, while the pistil or pistils (which develop into the fruit or fruits) sit in the bottom of it.
The Rosaceae or rose family is a large family of plants, with about 3,000-4,000 species in 100-120 genera.
www.bookrags.com /Rosaceae   (835 words)

Flowers of the Rosaceae are marked by the presence of a hypanthium.
This combination of characters will enable you to recognize all members of the family in northern Utah, so long as you bear in mind that a taxon may differ in one or two ways from the rest of the family and still be included in it.
The Rosaceae retains several features that are thought to have characterized the earliest flowering plants, e.g., many stamens, simple pistils in most subfamilies, and radially symmetric flowers with separate petals, but the hypanthium is definitely an advancement.
herbarium.usu.edu /taxa/Rosaceae.htm   (614 words)

 Apricots, plums, nectarines, peaches and ... coconuts?! by Dianna H. — arecaceae, rosaceae, young coconut | Gather
Coconuts and dates are grouped in the Arecaceae (Palm Family) and are not closely related genetically to apricots, plums, nectarines and peaches, which are members of the Rosaceae (Rose Family).
Apples are not drupes but are pomes, according to the morphology of their fruits even though they are also in the Rosaceae Family.
The connection between coconuts and the fruits Sonia M. mentioned is not their genetic taxonomic relatedness but that their fruits are all of the drupe structural morphology type.
www.gather.com /viewArticle.jsp?articleId=281474976929367   (453 words)

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