Daleae Imagines page 821 plate CXIV
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Title
Daleae Imagines page 821 plate CXIV
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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 CXIV Dalea botterii (Rydb.) Barneby, a handsome shrubby species reaching a stature of 1.2 m, has dark green foliage tending to blacken when dry, and bright violet or indigo- violet petals that turn brown or black as they fade. Except for the violet flowers the species closely resembles D. lutea; important features common to both are the persistent, livid or blackish bracts and the prominent blackish glands on the back of the leaflets and in the intervals of the glabrescent or glabrous calyx-tube. The apparently interrupted (but probably little known) range of D. botterii lies along the east edge of the Mexican plateau, from s. Tamaulipas to s. Puebla. Northward from the Orizaba region it is represented by var. botterii, which has about 7-12 pairs of strongly keeled, narrow leaflets, long calyx-teeth, and large flowers. In the mountains around Tehuacan, at the south limit of the species range, var. botterii is replaced by var. atrocyanea (Rydb.) Barneby, differing in its fewer, broader leaflets that lack a prominent keel on the back, its shorter calyx-teeth, and smaller flower. Inflorescences × 1; the rest × 5. 1-8: var. botterii. 1) branchlet + spike; 2) stipules; 3) leaflets; 4) flower + bract; 5) banner, ventral and profile views; 6) wing; 7) keel; 8) androecium. 9-15: var. atrocyanea. 9) branchlet + spike; 10) stipules; 11) leaflets; 12) flower + bract; 13) banner, ventral and profile views; 14) wing; 15) keel.
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Taxonomy
Dalea botterii (Rydb.) Barneby
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Copyright Statement
Copyright The New York Botanical Garden Press
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License Statement
Image may not be reproduced without the permission of The New York Botanical Garden Press
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Cite This Image
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Image Type