Descriptions and phylogenetic relationships of four new species and a new name of Habenaria (Orchidaceae) from the cerrado and campos rupestres of Brazil

  title={Descriptions and phylogenetic relationships of four new species and a new name of Habenaria (Orchidaceae) from the cerrado and campos rupestres of Brazil},
  author={Jo{\~a}o Aguiar Nogueira Batista and Karina Proite and Luciano Bem Bianchetti},
  journal={Plant Systematics and Evolution},
Four new orchid species and one variety from the cerrado and campos rupestres of central and south-eastern Brazil are described and illustrated: Habenaria brachydactyla, H. irwiniana, H. minuta, H. pansarinii, and H. pansarinii var. minuscula. Habenaria campylogyna is proposed as a new name for the illegitimate H. humilis Cogniaux. The five species differ from other Neotropical taxa by being small, slender plants with linear leaves concentrated at the base of the stem. Molecular phylogenetic… 
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The mixed type of life strategy for Gymnadenia conopsea with stress-tolerant and ruderal components allows the species to grow for a long time in conditions of high interspecific competition and anthropogenic load, spreading quickly to unoccupied territories.
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Molecular Phylogenetics of Galeandra (Orchidaceae: Catasetinae) Based on Plastid and Nuclear DNA Sequences
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  • K. Cameron
  • Environmental Science, Biology
    American journal of botany
  • 2005
The traditional classification system of the tribe using characters primarily related to floral morphology does not reflect the evolutionary history of these taxa, and it seems evident that Malaxideae will need to be divided into at least seven genera.
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Phylogenetics of tribe Orchideae (Orchidaceae: Orchidoideae) based on combined DNA matrices: inferences regarding timing of diversification and evolution of pollination syndromes.
The results indicate that ancestral Orchidinae were hymenopteran-pollinated, food-deceptive plants and that these traits have been dominant throughout the evolutionary history of the subtribe in the Mediterranean.