Daleae Imagines page 685 plate XLVI
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Title
Daleae Imagines page 685 plate XLVI
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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 XLVI Dalea villosa (Nuttall) Sprengel and D. emarginata (Torrey & Gray) Shinners, both (at least functionally) pentandrous daleas, the former a true prairie-clover, perennial and with long filament-tassel, the latter a coarse annual or biennial herb, with flowers intermediate in morphology between sect. Dalea and sect. Kuhnistera. The foliage of D. villosa is finely pilose, in the low or diffuse var. villosa (figs. 1-10) densely so, usually ashen or silvery, and the petals vary from pale flesh-pink to rosy purple. The species is widespread on dunes and in deep sandy soils over the prairie provinces from s. Saskatchewan to the sources of the Red and Mississippi rivers, w. and s. to n.-w. New Mexico, w. Texas, and Oklahoma, and is represented in low sandy woodlands of e. Texas and adjoining Louisiana by the relatively tall, red-stemmed and green-leaved but otherwise similar var. grisea (Torrey & Gray) Barneby. Only bracts and calyx of D. emarginata are hairy, the foliage, crowded near base of the plant far below the long- stalked spikes being green or glaucescent beneath, often verdigris above when dry. The small flowers, opening in fall or spring, sometimes both, are vivid magenta-purple with yellow-golden anthers. The main range of D. emarginata lies around the Gulf Coastal Plain from s.-w. Louisiana to Veracruz, but extends feebly inland to the low hill-country of s.-centr. Texas.— Habit × 1; the rest × 5. D. villosa var. villosa: 1) top of flowering stem; 2) stipules; 3) leaflets; 4) flower; 5) calyx, laid open; 6) banners, ventral view; 7) epistemonous petals from different plants; 8) androecium; 9) fruiting calyx; 10) pod. D. villosa var. grisea: 3a) segment of stem + leaflets. D. emarginata: 1) top of stem; 2) stipules; 3) leaflets; 4) outermost bract (dorsal view); 5) interfloral bracts (do.); 6) flower + bract; 7) calyx, laid open; 8) petals, all from one flower; 9) androecia; 10) fruiting calyx; 11) pods, profile and from above.
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Taxonomy
Dalea villosa var. grisea (Torr. & A.Gray) Barneby
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Copyright Statement
Copyright The New York Botanical Garden Press
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License Statement
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Image Type