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Topic: Dirachmaceae


In the News (Mon 6 Jul 09)

  
  Rosales
Barbeyaceae + Dirachmaceae + Rhamnaceae + Elaeagnaceae + Ulmaceae + Cannabaceae + Moraceae + Urticaceae: trans-spliced intron in nad1 gene [cis-spicing elsewhere].
Dirachmaceae + Rhamnaceae + Elaeagnaceae: A = and opposite C/alternate with P, capsule septicidal; coat multiplicative, exotesta palisade, thick-walled; cotyledons large.
Dirachmaceae are shrubs that may be recognised by their small, strongly-toothed leaves which have subulate stipules that persist along the stem.
www.mobot.org /mobot/research/apweb/orders/rosalesweb.htm   (4418 words)

  
 Dirachma socotrana   (Site not responding. Last check: 2007-10-14)
Vegetative Anatomy and Affinities of Dirachma socotrana (Dirachmaceae).
Soqotra's Spectacular Flora:...records show that the archipelago has 11 endemic genera and one sub-endemic family, Dirachmaceae, represented by the small-leaved tree Dirachma socotrana and a...
Taxonomists place Dirachma socotrana in a family, Dirachmaceae, with only one other species (the latter occurs in Somalia).
specieslist.com /endangered/scientific_name/D/Dirachma_socotrana.shtml   (903 words)

  
 PBIO 450 Lecture Notes - Rosidae -- Spring 1998
Of these, Bombacaceae (anthers 1-locular) and Dirachmaceae (8-locular ovary) can be quickly dismissed, and the anthers of Scytopetalaceae open by terminal pores or transverse slits.
Tiliaceae and Sterculiaceae are now more frequently placed (along with Dirachmaceae and Bombacaceae) in the Malvales, and thus it is to here that one might look for supporting data if one were to test this hypothesis.
What may prove to be much more significant in Hutchinson's paper is his suggestion that while a portion of the Euphorbiaceae might have originated from a malvanean ancestory, other parts might have come from ancestral groups located elsewhere, namely Celastraceae and Rhamnaceae.
www.life.umd.edu /emeritus/reveal/pbio/pb450/rosi17.html   (1724 words)

  
 Disceliaceae
[ Dirachmaceae ] [ Disceliaceae ] [ Ditrichaceae ]
Individual specimen entries are published in the sample database supplied with The Compleat Botanica for species or varieties of this supra-generic taxon.
For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica.
www.crescentbloom.com /Plants/Familia/D/Disceliaceae.htm   (51 words)

  
 A phylogenetic analysis of Rhamnaceae using rbcL and trnL-F plastid DNA sequences -- Richardson et al. 87 (9): 1309 -- ...
The closest relatives of Rhamnaceae are Dirachmaceae and Barbeyaceae,
Dirachmaceae, and Barbeyaceae within Rhamnaceae but with low
incongruent, or the nesting of Barbeyaceae, Dirachmaceae, and
www.amjbot.org /cgi/content/full/87/9/1309   (7011 words)

  
 Sytsma, Kenneth J., Jeffrey Morawetz*, J. Chris Pires, and Clifford W. Morden.   (Site not responding. Last check: 2007-10-14)
The traditional Urticales (Ulmaceae, Celtidaceae, Cannabaceae, Moraceae, Urticaceae, and Cecropiaceae) is one of the more controversial orders in terms of family circumscriptions and both inter- and intra-familial phylogenetic relationships.
Recent molecular evidence has clarified its position as a monophyletic assemblage within a now expanded Rosales, with close relationships to an unresolved group including Barbeyaceae, Dirachmaceae, Rhamnaceae, and Elaeagnaceae.
Although the Ulmaceae has now been demonstrated to be sister to the rest of the urticalean lineage with both morphological and molecular data, the circumscription and relationships of the other families has remained unclear and controversial.
www.botany.org /bsa/portland/section13/abstracts/232.shtml   (329 words)

  
 Urticalean rosids: circumscription, rosid ancestry, and phylogenetics based on rbcL, trnL-F, and ndhF sequences -- ...
Plesiomorphic states were based on examination of Rhamnaceae, Elaeagnaceae, and Dirachmaceae; variation in outgroup only noted for chromosome number.
monotypic Barbeyaceae and Dirachmaceae are confined to the arid
Boesewinkel F. Bouman 1997 Ovules and seeds of Dirachma socotrana (Dirachmaceae).
www.amjbot.org /cgi/content/full/89/9/1531   (7008 words)

  
 Classification of Malvaceae: Overview
The classification of Takhtajan (1997) is similar, but separates off Bixaceae, Cistaceae and Cochlospermaceae as the order Cistales in the sub-class Malvanae, places Gonystylaceae and Thymelaeaceae in an order Thymelaeales in his sub-class Euphorbianae, and adds Dirachmaceae.
A later classification from Thorne (2000) divides the core Malvales into 3 families - an expanded Malvaceae (including Malvaceae sensu strictu), Bombacaceae, and parts of Tiliaceae and Sterculiaceae, a reduced Tiliaceae, and Byttneriaceae - which may be based on the rbcL/atpB phylogeny of Bayer et al (
Reveal (1997) splits the super-order Malvanae into 4 orders, Bixales, Cistales, Malvales and Thymelaeales, Malvales consisting of the Bombacaceae, Byttneriaceae, Dirachmaceae, Malvaceae, Sterculiaceae and Tiliaceae, i.e.
www.malvaceae.info /Classification/overview.html   (2365 words)

  
 Terrestrial Ecoregions -- Hobyo grasslands and shrublands (AT1307)
Unusual communities grow in mesic limestone gorges, including Buxus hildebrantii, Maytenus undata, and Vepris eugeniifolia.
Dirachma somalensis, one of two endangered species in the Dirachmaceae family, has its richest known locality in limestone gorges in this ecoregion.
Two other endemics include Amphiasma gracilicaulis and Lochia parvibracta (two other Lochia species are found on Socotra and Oman).
worldwildlife.org /wildworld/profiles/terrestrial/at/at1307_full.html   (939 words)

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