Phylogenetic Relationships of Didymocistus and Hymenocardia (Euphorbiaceae)

  title={Phylogenetic Relationships of Didymocistus and Hymenocardia (Euphorbiaceae)},
  author={Geoffrey A. Levin and Michael G. Simpson},
  journal={Annals of the Missouri Botanical Garden},
The genus Hymenocardia has been placed either in Euphorbiaceae subfamily Phyllanthoideae or in its own family and then associated with the Urticales, particularly the Ulmaceae. However, the pollen exine wall of Hymenocardia lacks the microchanneled tectum, granular interstitium, and thin foot-layer of the Urticales. Hymenocardia instead has many palynological features found in the Phyllanthoideae and should be retained in the Euphorbiaceae in that subfamily. Didymocistus, which has scalelike… 
Phylogenetic Implications of Pollen Ultrastructure in the Oldfieldioideae (Euphorbiaceae)
The pollen structure of members of Euphorbiaceae subfamilies Oldfieldioideae and Phyllanthoideae was studied using scanning and transmission electron microscopy in order to assess taxonomic
Taxonomic and Phylogenetic Assessment of the Euphorbiaceae: A Review
The present review based on all-pervasive examination of exomorphology and endomorphology suggests close affinities of certain families of this alliance, however, few of them apparently closer because of unisexuality and reduced floral structure.
Molecular phylogenetic analysis of Phyllanthaceae (Phyllanthoideae pro parte, Euphorbiaceae sensu lato) using plastid RBCL DNA sequences.
Analysis of plastid rbcL DNA sequence data of the pantropical family Phyllanthaceae and related biovulate lineages of Euphorbiaceae sensu lato is presented and Antidesma, Bischofia, Hymenocardia, Martretia, and Uapaca, all of which have previously been placed in monogeneric families, are confirmed as members of PhyllAnthaceae.
Pollen Ultrastructure of the Biovulate Euphorbiaceae
The most widespread structural type consisted of a foot layer that is either thin and irregular or absent, an interstitium composed of irregular to columellate exine deposits that are discontinuous from the foot layer, if present, and a tectum composed of laterally appressed baculate elements that delimit fine microperforations.
The classification and geography of the flowering plants: Dicotyledons of the class Angiospermae
  • R. Thorne
  • Geography, Biology
    The Botanical Review
  • 2008
This latest revision of the classification and geography of the Dicotyledons is necessitated by the plethora of new information that has become available about the classification of the Angiospermae, especially in the currently popular approaches of cladistic, particulate, and molecular taxonomy.
Le pollen de la tribu des Acalypheae (Acalyphoideae, Euphorbiaceae)
Abstract Le pollen de 2/730 genres et de 48/1300 especes de la tribu des Acalypheae a ete etudie en microscopie photonique et electronique a balayage. Les variations des caracteres aperturaux et de