Archives - Page 2

  • POLIBOTANICA 54
    No. 54 (27)

    Flower of Bixa orellana L. (Bixaceae), "achiote" pollinated by Melipona beecheii Bennett (Apidae), "jicota mansa". The main pollinators for the flowers of numerous species of trees, plants and lianas in tropical and subtropical forest and jungle areas are stingless bees, but they are also important in the crops introduced in these regions, so much so that some countries already have established technology for the breeding and use of wild bees in crop pollination.

  • POLIBOTANICA 53
    No. 53 (27)

    Podopterus mexicanus Humb.& Bonpl. Polygonaceae.”Rompe capa”. Trees or shrubs 1.5-6.0 m tall, branches with a terminal spine, brachyblasts, fasciculate leaves, white to greenish flowers in fascicles, and fruit covered by the external perianth that forms thin wings and longly decurrent towards the pedicel. It grows in tropical deciduous forests and thorny forests, on black, rocky soil derived from igneous rocks. At elevations of 550-760 m. Blossoms from April to May and bears fruit from June to September. It is distributed from Mexico to Central America. In Mexico it is found in the states of Colima, Guerrero, Oaxaca, Puebla, Tamaulipas, Veracruzand Yucatán. It is used as a melliferous plant and for firewood.

  • POLIBOTANICA 52
    No. 52 (26)

    Gouania lupuloides (L.) Urban. Rhamnaceae. “Bejuco del fuego o jaboncillo”. Climbing plant up to 10 m long. Leaves alternate, the blade ovate or elliptical, 4-10 cm long, 2-6 cm wide. Inflorescences in slender racemes, 5-20 cm long; small flowers with white petals. Fruit a schizocarp. It is distributed in Mexico, Central America, and the Antilles in tropical forests from sea level to 900 m. Plant rich in saponins and is used to make toothpaste.

  • POLIBOTANICA 51
    No. 51 (26)

    Fallugia paradoxa (D. Don) Endl. ex Torr.
    Rosaceae. “Penacho de Apache”

     

    Shrubs up to 2 m tall. Leaves 6-8 mm long, in fascicles, usually deciduous. Flowers white and showy, generally unisexual, 3 cm in diameter. Achenes obovoid-fusiform, each with a style that is modified into a pink or purplish, twisted and hairy feather, up to 3 cm long, the “feather” helps to disperse the seeds by the wind. Prosper in xerophilous scrub. It is used in basketry to build cradles, brooms and arrows, it is considered valuable for erosion control in desert areas. Distribution Northwest of Mexico and South of the USA

  • POLIBOTANICA 50
    No. 50 (25)

    Poliomintha maderensis Henr. Lamiaceae. Mexican oregano. Small aromatic shrub; erect stems. Opposite leaves, oblong-lanceolate, 8-13 (18.5) mm long by 2.5-5 mm wide, petioles about 1 mm long. Zygomorphic flowers, solitary, subsesile 30-35 mm  long, lilac, tubular calyx 10-10.5 mm long, bilabiate, 5-lobed; stamens 2; gynobasic style; bifid stigma. It thrives in the Pinus forest at an altitude of 2,600 m. Endemic plant of the state of Coahuila, Mexico. It is cultivated as an ornamental plant.

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