Unique floral structures and iterative evolutionary themes in Asparagales: insights from a morphological cladistic analysis
Specimens of this undescribed species of Kochiana were examined and characters scored for cladistic analysis
In order to streamline the cladistic analysis
presented here, some
Karripurcellia, a new pettalid genus (Arachnida: Opiliones: Cyphophthalmi) from Western Australia, with a cladistic analysis
of the family Pettalidae.
was undertaken using the program TNT (Tree analysis using New Technology; Goloboff et.
Pending the discovery of additional taxa and a detailed cladistic analysis
(hopefully including molecular data), we suggest that the new species probably represents the sister group of Socalchemmis, as currently constituted.
The genus Aglaoctenus serves as the out-group in the cladistic analysis
with the type species Aglaoctenus lagotis (C.
In a cladistic analysis
of 25 members of tribe Pachycereeae based on morphological and anatomical characters, Terrazas and Loza-Cornejo (2002) found that the occurrence of silica bodies in Stenocereus dermal tissue is one of the synapomorphies for the genus, supporting previous assertions (Gibson & Horak, 1978).
A cladistic analysis
based on morphological characters had never been carried out for all angiosperms in sufficient detail before the large rbcL analysis by Chase et al.
Based on the cladistic analysis
by Anderberg (1994a) Enkianthus seems to have originally been shrubs with deciduous leaves, racemose inflorescences, camp anulate corollas, and winged seeds, whereas the more derived species possess coriaceous leaves, umbellate inflorescences, flowers with tubular or urceolate corollas, and unwinged seeds.
This statistical cladistic analysis
revealed a very weak detectable geographic structure across the entire range of E.
The basal position of Schlechtendalia was recently confirmed in a morphological cladistic analysis
of the Barnadesioideae conducted at the specific level that includes nearly 60% of the species of the group (Urtubey & Stuessy, 2001).
These heterochronies are used as characters in a cladistic analysis
, and it is shown that although some are homoplasious, many provide synapomorphies of clades of exemplars re resenting genera in the Ingeae and Acacieae.
The only two studies dealing with opilionids which analyzed biogeography based on cladistic analysis
were Briggs & Ubick (1989) and Ubick & Briggs (1989) for two genera of Laniatores, Phalangodidae, endemic to coastal California.
The current study represents the first attempt to address global questions of fern phylogeny by numerical cladistic analysis
using morphological characters of both extinct and living taxa and to resolve the overall phylogenetic pattern for plants that we recognize as ferns s.