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Topic: Hamamelidae


In the News (Thu 31 Dec 09)

  
  FLORA OF NORTH AMERICA - Volume 1, Chapter 14
The Hamamelidae are a group of mostly wind-pollinated families with reduced, usually apetalous flowers that are often borne in catkins.
The Hamamelidae can be traced back through the platanoid line (Hamamelidales) to near the middle of the Albian (final) stage of the Lower Cretaceous period.
The relatively short fossil history, as contrasted to the Magnoliidae, Hamamelidae, and Rosidae, is consonant with the primitively herbaceous habit of Caryophyllidae.
hua.huh.harvard.edu /FNA/Volume/V01/Chapter14.shtml   (9619 words)

  
 Dicots part 4 - Table of characteristics   (Site not responding. Last check: 2007-09-17)
Subclass Hamamelidae: This is the smallest subclass within the dicots.
New data suggest this is an artificial group of families.
These separate male and female catkins may occur on the same individual plant (monoecious) or on separate plants (dioecious).
www.lactarius.com /courses/dicot4_table.htm   (96 words)

  
 B201 - 8th lecture   (Site not responding. Last check: 2007-09-17)
Subclass Hamamelidae, the smallest of the dicot Subclasses, includes 11 orders, 24 families and about 3,400 species.
The Order Trochodendrales is placed at the base of the Hamamelidae and the Genus Casuarina (Australian Pine - Casuarinaceae, Casuarinales) takes the most derived or specialized position.
Since the two subclasses covered represent two, distinct 'models' for the primitive or archaic flowering plant, we will divert from the survey to take a quick look at the history or evolution of flowering plant classification systems.
www.csdl.tamu.edu /FLORA/Wilson/tfp/ham/tfplechamf99.htm   (250 words)

  
 Royal Botanic Gardens, Kew: About Us: Director - Professor Peter Crane FRS: Publications
HUFFORD, L., and P. A preliminary phylogenetic analysis of "lower" Hamamelidae.
QIU, Y-L., M. and C. Phylogenetics of the Hamamelidae and their allies: parsimony analyses of nucleotide sequences of the plastid gene rbcL.
BATEMAN, R. SPECK, and W. Early evolution of land plants: Phylogeny, physiology and ecology of the primary terrestrial radiation.
www.rbgkew.org.uk /aboutus/pc_publs.html   (3715 words)

  
 Hamamelidae
The Hamamelidae are defined by a suite of characters correlated with wind pollination (anemophily): generally woody and deciduous; more or less strongly reduced, unisexual flowers that are borne in catkins; smooth pollen; and nut-like fruits with one or few seeds.
All recent evidence (fossil and morphological/molecular phylogenetic studies) indicate that the Hamamelidae are completely unnatural - with this syndrome of characters evolving independently several times.
Most Hamamelidae now belong to various lineages of the Rosidae or to a basal grade of "eudicots" called the "lower hamamelids."
botit.botany.wisc.edu /courses/systematics/Phyla/Magnoliophyta/Hamamelidae.html   (115 words)

  
 ASU FOSSIL PLANT COLLECTIONS -- Plants -- Taxa -- Angiosperms -- Hamamelidae   (Site not responding. Last check: 2007-09-17)
The genus Liquidambar, or sweet gum, is a woody dicot with a disjunct distribution, with species growing in eastern North America, Mexico, Asia Minor and China.
A survey of the Liquidambaroideae (Hamamelidaceae) with a view to elucidating its fossil record.
Evolution, systematics, and fossil history of the Hamamelidae.
lsweb.la.asu.edu /kpigg/paleo/text/liquidambar1.html   (126 words)

  
 UW-Stevens Point Freckmann Herbarium: Biology 342
Also, the amount of material requires regular attendance and students usually need to spend extra time in lab to review for tests and to prepare their collection due at the end of the semester.
The lecture portion will cover only the families of the Magnoliidae, Hamamelidae, Caryophyllidae, and Dilleniidae on the list below; up to 25% of the lecture exam may come from material covered only in lecture and not necessarily in the textbook, lab manual, or course intranet folder.
You should know the main taxonomic characteristics of each family on this list, the relative size, distribution, ecological and economic importance of each, and some of the major components.
wisplants.uwsp.edu /Judziewicz/biology_342.htm   (2442 words)

  
 Donoghue Lab People
Phylogenetic analysis of angiosperms and the relationships of Hamamelidae.
In Evolution, Systematics and Fossil History of the Hamamelidae, Vol.1, pp.17-45; P. Crane and S. Blackmore (eds.).
Seed plant phylogeny and the origin of angiosperms: an experimental cladistic approach.
www.phylodiversity.net /donoghue/publications/angioorigin.html   (143 words)

  
 WikiMiki.net - Hamamelidae   (Site not responding. Last check: 2007-09-17)
Hamamelidae es el subclase de plantas herbáceas o leñosas de la clase Angiospermae.
Ulmaceae (Ulmáceas) es una familia de árboles caducifolios y arbustos del orden Urticales, subclase Hamamelidae.
Las Cannabaceae es la familia de hierbas erectas o sarmentosas, del órden Urticales, subclase Hamamelidae.
cannabis.es.wikimiki.net /es/Hamamelidae   (1655 words)

  
 Hamamelidae - Ciencia.net - Noticias científicas, artículos científicos sobre matemáticas, ...   (Site not responding. Last check: 2007-09-17)
Hamamelidae - Ciencia.net - Noticias científicas, artículos científicos sobre matemáticas, física, química, astronomía...
Las Hamamelidae es el subclase de plantas herbáceas o leñosas de la clase Angiospermae.
El artículo "Hamamelidae" está dado de alta en los siguientes temas y categorías
www.ciencia.net /VerArticulo/?idTitulo=Hamamelidae   (224 words)

  
 Publisher description for Library of Congress control number 89016344
Publisher description for Evolution, systematics, and fossil history of the Hamamelidae / edited by Peter R. Crane and Stephen Blackmore.
The second part of this comprehensive two-volume treatise includes full coverage of the "higher" Hamamelidae, such as Fagales, Jaglandales, Myricales, and Urticales.
This fully illustrated treatment emphasizes the relationship between living and fossil members of the Hamamelidae while
www.loc.gov /catdir/enhancements/fy0640/89016344-d.html   (139 words)

  
 Phylogenetic relationships of the Hamamelidaceae inferred from sequences of internal transcribed spacers (ITS) of ...
1989a Aspects of evolutionary differentiation of the Hamamelidaceae and the lower Hamamelidae.
1989 A preliminary phylogenetic analysis of the "Lower" hamamelidae.
1998 Phylogenetics of the Hamamelidae and their allies: parsimony analyses of nucleotide sequences of the plastid gene rbcL.
www.amjbot.org /cgi/content/full/86/7/1027   (4310 words)

  
 Trees of Reed: Family Tour, Intro.
The flowering cherries are found here in the Rose family (Rosaceae).
The Hamamelidae actually form the smallest subclass of flowering plants, but they take up a big part of our family tour because most of them are trees.
Many of the photos on this page are of oaks, which are found in the Beech family (Fagaceae).
web.reed.edu /trees/tour   (258 words)

  
 Flora of North America North of Mexico: Magnoliophyta : Magnoliidae and Hamamelidae   (Site not responding. Last check: 2007-09-17)
Flora of North America North of Mexico: Magnoliophyta : Magnoliidae and Hamamelidae
Book Description: Flora of North America, Volume 3, provides information on many of the most familiar wildflowers and trees in North America.
Contact them for corrections and licensing, or read more about our data.
isbn.nu /0195112466   (445 words)

  
 Hamamelidae - French-English Dictionary WordReference.com
We found no French translation for 'Hamamelidae' in our English to French Dictionary.
Look for a definition in our English Dictionary.
Forum discussions with the word(s) 'Hamamelidae' in the title:
www.wordreference.com /enfr/Hamamelidae   (49 words)

  
 Bio 220 Plant Systematics: Betulaceae
Dicot -> Magnoliophyta -> Magnoliopsida -> Hamamelidae -> Fagales -> Betulaceae
Most former Amentiferae are now in Hamamelidae, others are in the Dilleniidae; this provides an interesting example of apparent parallel evolution of this unique inflorescence structure.
Having one or more stamens but no functional pistils, i.e., has a androecium, but no gynoecium.
personal.denison.edu /~baran/betulaceae.html   (298 words)

  
 subclass hamamelidae - definition, thesaurus and related words from WordNet-Online
subclass hamamelidae - definition, thesaurus and related words from WordNet-Online
Hint: double-click any word on the page to get it searched!
Hamamelidae, subclass Hamamelidae - a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder
www.wordnet-online.com /subclass_hamamelidae.shtml   (117 words)

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