Daleae Imagines page 781 plate XCIV
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Title
Daleae Imagines page 781 plate XCIV
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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 XCIV Dalea tomentosa (Cav.) Willd., a precociously flowering but potentially shrubby dalea reaching a stature of 2 m, widely dispersed through the Neovolcanic Belt in Mexico, whence it extends commonly s. and e., in oak-pine forest and grassland, to the highlands of Guatemala and El Salvador, and n.-w., along the Pacific slope of the Mexican Plateau, to s. Sonora. The stems and foliage are always densely pubescent, but the leaves vary from greenish to silvery-white; the petals may be whitish, pink, or vivid purple. The var. psoraleoides (Moric.) Barneby, which represents the species over nearly its whole range s.-ward from central Sinaloa, is characterized by its stiffly branched, narrowly pyramidal or thyrsiform panicle of heads; its flower is always small, the inner petals whitish to pale pink. The more local var. tomentosa, found in the valley of the Lerma-Santiago river in Jalisco and Nayarit, and disjunctly on the Caribbean slope of the Orizaba massif in Veracruz, resembles the preceding except that the flower is larger and more richly colored, and the calyx is usually more densely hairy. The var. mota Barneby (illustrated in Plate XCIII), known only from s. Sonora and Sinaloa, has silvery foliage, relatively few and thick heads arranged in a broadly pyramidal panicle, and lilac petals. — Inflorescences × 1; the rest × 5. var. psoraleoides: 1) upper part of panicle + a main cauline leaf; 2) flower + bract; 3) banner, profile and ventral views; 4) keel; 5) androecium; 6) fruiting calyx; 7) pod. var. tomentosa: 8) upper part of panicle; 9) flower + bract; 10) banner, ventral and profile views; 11) wing; 12) keel; 13) androecium; 14) pod.
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Taxonomy
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Copyright Statement
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Image Type