Daleae Imagines page 717 plate LXII
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Title
Daleae Imagines page 717 plate LXII
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Creator(s)
R. C. Barneby
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Publisher
The New York Botanical Garden Press
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Description
PLATE LXII Dalea lanata Sprengel, a diffusely branching herb widely dispersed on dunes and river sands over the plains from w. Kansas to the coastal prairie of s. Texas, w. into s.-e. Utah, and s. through Rio Grande valley into n. Chihuahua. Leaves and stems are usually gray-villosulous, rarely green, exceptionally glabrous. The vivid magenta purple petals are fugacious, the small epistemonous ones falling from a perch high on the long-exserted androecium within a few hours of expansion. Note the exposed filaments, nine in number, the curious peltate banner, and free keel-petals, characteristic of monotypic sect. Elaspora. The species is geographically differentiated into an eastern and southeastern var. lanata, with externally villosulous, long-toothed calyx, and a western var. terminalis (Jones) Barneby, native along Rio Grande upstream from the Big Bend and w. into Chihuahua and the margins of Colorado Plateau, with externally glabrescent, broadly short-toothed calyx.— Habit × 1; the rest × 5. var. lanata: 1) top of flowering stem; 2) stipules; 3) leaflets; 4) bract, ventral view; 5) flower + bract, lateral view; 6) do., seen from behind banner; 7) calyx; 8) banner, profile and ventral views; 9) wing; 10) keel-petal; 11) androecium; 12) pod. var. terminalis: 7a) calyx; 7b) do., a glabrous forma.
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Taxonomy
Dalea lanata var. terminalis (M.E.Jones) Barneby
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Copyright Statement
Copyright The New York Botanical Garden Press
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License Statement
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Cite This Image
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Image Type