Daleae Imagines page 641 plate XXIV

  • Title

    Daleae Imagines page 641 plate XXIV

  • Creator(s)

    R. C. Barneby

  • Publisher

    The New York Botanical Garden Press

  • Description

    PLATE XXIV Marina diffusa (Moric.) Barneby becomes when full grown a round-headed shrub up to 1-2.5 m tall, wholly glabrous, with one to several trunks 1-3 cm in diameter and many black-purple, glaucous stems elaborately ramified upward into a cloud of pliant branchlets and capillary flower-stalks. The frondose cauline foliage (fig. 2) developed during summer growth is deciduous in fall, and in the dry season, as the flowers mature, the plant is commonly naked except for the minute paucifoliolate leaves in the panicle. The flowers, except for the white-tipped banner rich magenta-violet or dark plum-purple, are fugitive, the petals falling almost as they expand. The species is widely dispersed along the Neovolcanic Belt in Mexico from southeastern Mexico to Nayarit, thence north along the Pacific slope to Sonora and just into extreme southern Arizona, and southeast, becoming rarer, along the Sierra Madre del Sur to Oaxaca and Guatemala. In the Lerma valley downstream from Lago Chapala M diffusa is represented by var. radiolata Barneby, differing in more numerous flowers and leaflets, and a prominently striped vexillum. — Inflorescence and cauline leaf × 1; the rest × 5. var. diffusa: 1) branchlet; 2) main cauline leaf; 3) leaflet from the last, dorsal view; 4) leaf from panicle; 5) flower, profile and dorsal views; 6) banner, ventral and profile views; 7) wing; 8) keel; 9) pod; 10) androecium. var. radiolata: 11) leaf from panicle; 12) raceme central to main division of panicle; 13) flower; 14) banner, ventral and profile views.

  • Taxonomy

    Marina diffusa (Moric.) Barneby

    Marina diffusa (Moric.) Barneby var. diffusa

    Marina diffusa var. radiolata Barneby

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  • Image Type

    Illustration