Pithecellobium tubuliferum

Interesting Facts

Description

Subfamily Mimosoideae

Mostly trees or shrubs . Leaves mostly bipinnate. Corolla usually not showy, actinomorphic , sympetalous , the lobes valvate . Stamens 10-numerous, often monadelphous , showy. Pollen released in monads , tetrads , or polyads . Seeds with u-shaped line (pleurogram) present. [Carr]

Genus Pithecellobium

Trees or shrubs with spinescent stipules or axillary spines. Leaves bipinnate, petiole with a gland above at the junction of pinnae, leaflets 1-3 pairs, rarely more. Inflorescence head or spike often racemosely or paniculately arranged. Flowers generally sessile, bisexual , 5 or rarely 4 or 6-merous. Sepals usually 5, rarely 4 or 6, connate , campanulate , teeth small valvate . Petals 5, sometimes 4 or 6, connate, externally minutely hairy to glabrous . Stamens indefinite, monadelphous , much exserted. Ovary usually puberulous , sessile or shortly stipitate , ovules nume¬rous, style thin, stigma capitate. Pod spirally twisted, circinate or curved or rarely straight, compressed or convex , dehiscing from below splitting into 2 valves . Seeds compressed, ovate or rounded , embedded in a scanty pulp, often arillate , non endospermic .

A genus with about 100 species distributed in tropical and subtropical America.[1]

Taxonomy

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Domain: Eukaryota () - Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Plantae () - Haeckel, 1866 - Plants
  - Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
    - Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
      - Subphylum: Euphyllophytina ()
        Class: Spermatopsida () - Brongniart, 1843
        Subclass: Rosidae () - Takhtajan, 1967
        Superorder: Rosanae () - Takhtajan, 1967
        Order: Fabales () - Bromhead, 1838
        Family: Leguminosae () - A.L. de Jussieu, 1789, nom. cons.
        Subfamily: Mimosoideae ()
        Tribe: Ingeae ()
        Genus: Pithecellobium () - C.F.P. Martius, 1837, nom. cons. - Blackbead
        Specific epithet: tubuliferum
        Botanical name: - Pithecellobium tubuliferum