Barbara S. Carlsward

Publications24
h-index11
Citations559
Highly Influential Citations38
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Molecular phylogenetics of Vandeae (Orchidaceae) and the evolution of leaflessness.
TLDR
A change in leaf morphology, monopodial growth habit, and aeration complexes for gas exchange in photosynthetic roots seem to be the most important characters in making the evolutionary transition to leaflessness.
Comparative vegetative anatomy and systematics of the angraecoids (Vandeae, Orchidaceae) with an emphasis on the leafless habit
The vegetative anatomy and morphology of 142 species of the angraecoid orchids (Angraecinae + Aerangidinae) and 18 species of Aeridinae were examined using light and scanning electron microscopy.…
Phylogenetic utility of ycf1 in orchids: a plastid gene more variable than matK
TLDR
The phylogenetic utility of a heretofore unused portion of a plastid protein-coding gene, hypothetical chloroplast open reading frame 1 (ycf1), in orchids is demonstrated, which is likely to be similarly useful among other plant taxa.
Molecular Phylogenetics of Neotropical Leafless Angraecinae (Orchidaceae): Reevaluation of Generic Concepts
TLDR
Phylogenetic relationships of leafless Neotropical Angraecinae indicate that Harrisella, Polyradicion, and Campylocentrum filiforme (Sw.) Cogn.
Systematic and comparative anatomy of Maxillarieae (Orchidaceae), sans Oncidiinae
TLDR
Cladistic analyses using anatomical characters yielded no resolution among subtribes, illustrating that anatomical characters are of limited value in assessing relationships within this tribe.
Phylogenetics and biogeography of Mascarene angraecoid orchids (Vandeae, Orchidaceae).
Comparative vegetative anatomy and systematics of Laeliinae (Orchidaceae)
TLDR
Both aerial and terrestrial roots are notable for their uniseriate velamen the cell walls of which may be unmarked or ornamented with anticlinal strips.
Comparative Leaf Anatomy and Systematics in Dendrobium, Sections Aporum and Rhizobium (Orchidaceae)
TLDR
A cladistic analysis performed with various anatomical characters of the leaf demonstrates that both groups of Dendrobium are monophyletic and little resolution was found within the anatomically and morphologically distinctive Aporum clade.
Comparative vegetative anatomy and systematics of the Oncidiinae (Maxillarieae, Orchidaceae)
TLDR
The strict consensus of the 40 genera studied was completely unresolved, suggesting that vegetative characters alone are insufficient to assess the relationships amongst these taxa, a conclusion also reached for the remainder of Maxillarieae.
Floral elaiophores in Lockhartia Hook. (Orchidaceae: Oncidiinae): their distribution, diversity and anatomy.
TLDR
The location of floral elaiophores was determined histochemically and their anatomical organization and mode of oil secretion was investigated, and the degree of oil production and the distribution of trichomes differed between the three major groups of species found within the genus Lockhartia.
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