Species similar to Psittacanthus lasianthus, from which it differs by the sympodial, densely puberulous, three-angled stems, ternate leaves, terminal dichasia, perfoliate bracts, a neck-bearing, not inflated corolla densely laciniate on its outer surface and a triangular, ligule on the inside of each petal, a ring-like nectary, and a micropapillose stigma versus percurrent
, glabrous, circular stems, paired leaves, axillary dichasia, not perfoliate bracts, a neck-lacking, inflated corolla without laciniae on its outer surface and a finger-like ligule on the inside of each petal, a 4-lobed nectary, and a smooth stigma in P.
Tertiary venation is generally opposite percurrent
0); basally rounded, apically constricted with anterior margin straight in middle; frons distinctly widened from upper level of eyes to lower of antennal sockets, lateral margins between them slightly concave; median carina thin and percurrent
, green, erect, up to 15 cm, monoecious.
15); dorsal faces of femora with a percurrent
edge on each.
Head not prominent, not wider (including the eyes) than the broadest part of the thorax, the vertex gently arched, not elevated above pronotum, the fastigium descending rapidly, the face retreating slightly; eyes large but not very prominent, more than half as long as broad in the male and nearly twice as long as the anterior infrarocular portion of the genae, separated above by a very narrow space; frontal costa narrow, but wider than the space between the eyes, equal, percurrent
, sulcate; antennae only a little longer than head and pronotum together.
Knight reads the episode as evidence that "the Gloucester-theme throughout reflects and emphasizes and exaggerates all the percurrent
qualities of the Lear-theme.
, green, the young shoots often glaucous, erect, up to 40 cm, monoecious.
Propodeum coarsely reticulate-rugose with distinct, percurrent
medial longitudinal carina.
, fourth vein category reticulate orthogonal, and
An ultrastructural study of pit connections and percurrent
proliferations in the red alga Nemalion helminthoides (Vell.
Pole, 1991), which include percurrent
veins and interangular veins