Lamiales

The order Lamiales is a taxon in the asterid group of dicotyledonous flowering plants. Lamiales formerly had a restricted circumscription (e.g., by Arthur Cronquist) that included the major families Lamiaceae (Labiatae), Verbenaceae, and Boraginaceae plus a few smaller families. Recent phylogenetic work has shown that Lamiales is polyphyletic with respect to order Scrophulariales and the two groups are now usually combined in a single order that also includes the former orders Hippuridales and Plantaginales. Lamiales has become the preferred name for this much larger combined group. The placement of Boraginaceae is unclear but phylogenetic work shows that this family does not belong in Lamiales.

Species in the order Lamiales show typically the following characteristics, although there are exceptions to all of them:

  • erior ovary composed of two fused carpels
  • five petals fused into a tube
  • bilaterally symmetrical, often bilabiate corollas
  • four (or fewer) fertile stamens

The circumscription of Scrophulariaceae, formerly a heterogeneous para/polyphyletic group defined primarily by plesiomorphic characters and from within which numerous other families of the Lamiales were derived, has been radically altered to create a number of smaller, better-defined and putatively monophyletic families.

 

From Wikipedia, the free encyclopedia

 

Lamiales

Lamiales

 

Homepage Products Services Help About Us Site Map