Ulmaceae
Ulmaceae A family of trees with
simple, alternate leaves, often asymmetrical at the base, and with small, usually hermaphrodite flowers in dense clusters on the twigs. The flowers have a 4–8-lobed
perianth with imbricate lobes, 4–8
stamens opposite the perianth lobes, and an
ovary of 2 fused
carpels. They are wind-pollinated. The tiny, dry or fleshy fruits are often winged. Modern classifications recognize some 16 genera, with about 140 species, mostly in the northern temperate zone.
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Glitch splits hermaphrodite flowers.(Brief Article)
Magazine article from: Science News; 9/30/2000; ; 700+ words
; Arizona scientists propose a new scenario to explain why perfectly good, everybody's-equal, bisexual flowers evolve forms with different genders. A genetic goof that adds extra sets of chromosomes, or polyploidy, could trigger the split into gender forms, suggests Jill S. Miller, now of the
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Growth and biomineralization of Celtis occidentalis (Ulmaceae) pericarps
Magazine article from: The American Midland Naturalist; 4/1/1997; ; 700+ words
; ...cystoliths in the epidermis and silicification in the cortex of the young stems of Celts and Ulmus. In an anatomical study of the Ulmaceae, Schweitzer (1971), found cystoliths composed of both calcium carbonate and silica and that trichomes were often silicified...
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Studies from University of Perugia reveal new findings on botany.
Newspaper article from: Science Letter; 9/22/2009; 700+ words
; ...ovary, style and stigma of the hermaphrodite flowers. No starch was observed in the...starch content between staminate and hermaphrodite flowers and the secondary origin of the...development in the staminate and hermaphrodite flowers could be related to differences...
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Findings from E. Cuevas and co-authors provide new insights into evolutionary biology.
Newspaper article from: Ecology, Environment & Conservation; 7/28/2008; 636 words
; ...variability in sex ratio among populations (0-44% female). Hermaphrodite flowers received more pollinator visits and pollen grains than females, and bagged hermaphrodite flowers produced fruits. However, we found no evidence of pollen...
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Recent findings from A. Martin and co-authors highlight research in life sciences.
Newspaper article from: Science Letter; 11/17/2009; 689 words
; ...data indicate a model in which CmACS-7 and CmWIP1 interact to control the development of male, female and hermaphrodite flowers in melon." Martin and colleagues published their study in Nature (A transposon-induced epigenetic change...
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 "Herald Express (Torquay UK)")
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Zoo's lilies are likely to bite like the crocs Paignton Zoo's new Crocodile Swamp exhibit is to house exotic monsters with razor-sharp teeth... and that's just the plants.
Newspaper article from: Herald Express (Torquay UK); 10/19/2007; 568 words
; ...scented, female flowers. They close in the morning and then open again in mid afternoon as pink, unscented, male, or hermaphrodite, flowers. "The beetles which pollinate them are held inside the flower during the day and emerge on the second afternoon covered...
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 "Daily Post (Liverpool, England)")
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week in erddig; gardening.(Features)
Newspaper article from: Daily Post (Liverpool, England); 12/16/2006; 637 words
; ...Holly is one of those species with flowers of different sexes on different plants, whereas most plants have hermaphrodite flowers, with both the female stigma and ovaries and male anthers, with their pollen, in the same flower. A few...
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Research results from Catholic University update understanding of forestry.
Newspaper article from: Agriculture Week; 6/4/2009; 700+ words
; ...out for 170 min in total, and a list of registered species was prepared. Within the inflorescence, central hermaphrodite flowers and lateral male flowers lived 12.3 +/- A 0.26 and 5.8 +/- A 0.26 days on average, respectively...
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On the function of hermaphrodite florets in female inflorescences of Petasites japonicus (Asteraceae).(Report)
Magazine article from: Canadian Journal of Botany; 2/1/2008; ; 700+ words
; ...studies have examined pollinator visits in plants in which female (or functionally female) flowers resemble male (or hermaphrodite) flowers (Bawa 1977, 1980; Armstrong and Drummond 1986; Agren et al. 1986; Dukas 1987; Anderson and Symon 1989; Agren...
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Studies from F. Masmoudiallouche and co-researchers yield new data on botany.(Report)
Newspaper article from: Science Letter; 1/27/2009; 616 words
; ...particular in vitro conditions, without blocking carpel's development, leading to morphologically typical hermaphrodite flowers. This de novo activation of repressed stamens was found to occur rapidly. The isolated pollen mother cells...
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Ulmaceae
Book article from: A Dictionary of Plant Sciences
Ulmaceae A family of trees with simple , alternate leaves, often asymmetrical at the base, and with small, usually hermaphrodite flowers...
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Ulmus
Book article from: A Dictionary of Plant Sciences
Ulmus ( elms ; family Ulmaceae ) A genus of mostly large trees, in which the leaves are asymmetrical at the base, and usually hairy, at least beneath. The...
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Celtis
Book article from: A Dictionary of Plant Sciences
Celtis (family Ulmaceae ) A genus of trees in which the fruit is a drupe . They yield useful timber, and in India their foliage is used for browse. There are 60 species, occurring mainly in the northern hemisphere, and extending to the Old World tropics.
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elm
Book article from: The Columbia Encyclopedia, Sixth Edition
elm common name for the Ulmaceae, a family of trees and shrubs chiefly of the Northern Hemisphere. Elm trees (genus Ulmus ) have a limited use as hardwoods for...
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Slippery Elm
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
...particularly the eastern and central United States and eastern Canada. Slippery elm is smaller in stature than other members of the Ulmaceae, or elm, family. There are about twenty species of elm. The slippery elm can grow 50-60 ft (15-18 m) in height with...
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