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Topic: Aextoxicaceae


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In the News (Thu 16 Feb 12)

  
  Aextoxicon - Wikipedia, the free encyclopedia
Aextoxicon punctatum, the sole species of genus Aextoxicon and family Aextoxicaceae, is a tree native to southern Chile.
Commonly known as the olivillo or aceitunillo, it is a large evergreen tree endemic to the forests of the Valdivian temperate rain forests and Magellanic subpolar forests of southern Chile's Pacific coast, where it forms a canopy tree in the laurel-leaf forests.
Aextoxicaceae in L. Watson and M.J. Dallwitz (1992 onwards).
en.wikipedia.org /wiki/Aextoxicaceae   (138 words)

  
 Trees
Aextoxicon punctatum is a tree native to southern Chile, commonly known as the Olivillo or Aceitunillo.
It is the sole species of genus Aextoxicon and family Aextoxicaceae.
It is an evergreen tree endemic and native to the forests of the Valdivian temperate rain forests and Magellanic subpolar forests of southern Chile's Pacific coast, where it forms a canopy tree in the laurel-leaf forests.
www.shortopedia.com /T/R/Trees   (1374 words)

  
 Berberidopsidales
Aextoxicaceae are dioecious evergreen trees that can be recognised by their opposite, entire exstipulate leaves that are covered with peltate scales and by their pendulous, racemose inflorescence.
The embryo is more or less transverse to the long axis of the seed.
Aextoxicaceae were included in Euphorbiales (Takhtajan 1997), and have also been linked with Saxifragales (Qiu et al.
www.mobot.org /MOBOT/research/APweb/orders/berberidopsidalesweb.html   (1552 words)

  
 ESA 2005   (Site not responding. Last check: 2007-10-14)
Relict islands of the temperate rainforest tree Aextoxicon punctatum (Aextoxicaceae) in semiarid Chile: Genetic differentiation and biogeographic history.
ABSTRACT- Aextoxicon punctatum (Olivillo), the only representative of the endemic and monotypic family Aextoxicaceae, has a biogeographic history that dates back to Gondwanan tropical forests, and a latitudinal distribution that extends over 1200 km, with disjunct populations in the Chilean semiarid region and southern temperate rainforests.
This study explores how this biogeographic history has influenced the genetic diversity of present-day Olivillo populations.
abstracts.co.allenpress.com /pweb/esa2005/document/?ID=50439   (238 words)

  
 CPD: South America, Site SA45, Temperate Rain Forest, Chile
450 vascular plant species; high endemism, including quasi-endemic family Aextoxicaceae and 17 monotypic regionally endemic genera; ecologically major threatened species.
Most outstandingly, a third of the woody genera and one family (Aextoxicaceae) are endemic to the southern temperate area of Chile and Argentina (including Mediterranean-climate scrublands).
Close to 80% of the regionally endemic genera are monotypic (Arroyo et al.
www.nmnh.si.edu /botany/projects/cpd/sa/sa45.htm   (4307 words)

  
 BOTW Directory - Science > Biology > Plants and Animals > Plantae > Magnoliophyta > Magnoliopsida > Aextoxicaceae
Crescent Bloom Aextoxicaceae - Provides taxonomic information on this plant group.
Texas A and M University Aextoxicaceae - Allows access to photos of member species.
Vascular Plant Families and Genera List of Genera in Family Aextoxicaceae - Provides list of subgroups.
botw.org /top/Science/Biology/Plants_and_Animals/Plantae/Magnoliophyta/Magnoliopsida/Aextoxicaceae   (128 words)

  
 Hotspots Revisited
There are also a number of endemic genera on the Juan Fernández Islands (Stuessy et al.
In addition, three plant families (Aextoxicaceae, Gomortegaceae, and Lactoridaceae) are restricted to the hotspot.
Although not rich in species, the Valdivian rainforest habitat is characterized by an outstanding number of endemic and/or monotypic plant genera, with one-third of all woody plant genera endemic to the general area of the hotspot (Arroyo et al.
www.biodiversityscience.org /publications/hotspots/ChileanForests.html   (1572 words)

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