Daleae Imagines page 863 plate CXXXV

  • Title

    Daleae Imagines page 863 plate CXXXV

  • Creator(s)

    R. C. Barneby

  • Publisher

    The New York Botanical Garden Press

  • Description

    PLATE CXXXV Dalea foliolosa (Ait.) Barneby is a polymorphic species, varying greatly in stature, length of calyx-teeth, and flower-color, but easily recognized by the combination of an annual root, glabrous foliage, short bracts with broad hyaline base enveloping the flower-buds, and a callous, crestlike keel along the pod’s horizontal edge. As a native, though often as a roadside weed, it is widely dispersed over the Mexican plateau from southern Coahuila south into the highlands of Guatemala, and (as var. citrina) is adventive in northern South America. The var. foliolosa, which contains the more northern and southward the more montane aspects of the species, is of low stature, the stems, whether erect or prostrate, rarely surpassing 5 dm in length, and its calyx- teeth are deltate. It is the only variety found on the Mexican plateau, where the petals are commonly reddish-purple, but reappears in pine-forest southward, usually in forms with diffuse stem and bright blue flowers. The var. citrina has erect stems 4-10 dm long, at least one (the dorsal) calyx-tooth subulate-aristate, and flower nearly always bright blue except for the whitish banner: It is an abundant weed of grasslands and cornfields in the Neovolcanic Belt and Balsas depression, in the valley of Oaxaca, and sporadically southward. Stems × 1; the rest × 5. var .foliolosa: 1) stem; 2) stipules + leaflets; 3) bract, dorsal view; 4) flower + bract; 5) banner, profile and ventral views; 6) wing; 7) keel; 8) androecium; 9) fruiting calyx; 10) pod. var. citrina: 1) upper part of stem; 2) stipules; 3) leaflet, dorsal view; 4) bract, dorsal view; 5) flower + bract; 6) banner, two types, both ventral view; 7) keel; 8) fruiting calyx; 9) pod.

  • Taxonomy

    Dalea foliolosa (Aiton) Barneby

    Dalea foliolosa var. citrina (Rydb.) Barneby

    Dalea foliolosa (Aiton) Barneby var. foliolosa

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    Copyright The New York Botanical Garden Press

  • License Statement

    Image may not be reproduced without the permission of The New York Botanical Garden Press

  • Cite This Image

    Image may not be reproduced without the permission of The New York Botanical Garden Press

  • Image Type

    Illustration