1. Family: Araceae Juss.
    1. Genus: Anthurium Schott
      1. Anthurium titanium Standl. & Steyerm.

        This species is accepted, and its native range is Mexico (SE. Chiapas), W. Guatemala.


    CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

    Endemic to a small area in southeastern Chiapas in Mexico and adjacent western Guatemala in the Department of San Marcos.
    General Description
    Epiphytic or terrestrial; stems short, 2-4 cm diam.; leaf scars 2.5-2.8 cm wide; roots thick, tan, 5-6 mm diam.; cataphylls subcoriaceous, 4.5-12 cm long, round to weakly emarginate at apex with a conspicuous subapical apiculum ca. 2mm long, drying medium brown (B & K Yellow 4/7.5), weathering into coarse fibers. LEAVES with petioles erect-spreading, 31-90(112) cm long, 5-10(15) mm diam., D-shaped, sometimes weakly sulcate and glaucous; geniculum 1.5-4 cm long; blades moderately thick, ovate to broadly ovate or nearly round, abruptly to gradually acuminate at apex (the acumen apiculate 2-7 mm long), deeply lobed at base, 27-120 cm long, 29-80 cm wide, broadest at middle or just below, the margins sometimes markedly undulate, weakly revolute; anterior lobe 19-100 cm long, the margins broadly rounded; posterior lobes 10-40 cm long; sinus obovate to hippocrepiform, acute to rounded at apex; both surfaces semiglossy; midrib convexly raised above, more acutely raised below, narrowing and diminishing, ± flat at apex above; basal veins 1-10 pairs, the first and second free to base, those remaining coalesced 2-4(7) cm, raised above and below; posterior ribs conspicuously upturned, naked; primary lateral veins 3-5 per side, departing midrib at 45° angle, ± straight to collective vein, loop-connecting to collective vein, weakly raised above and below; interprimary veins conspicuous, flat above and below, lesser veins visible; collective vein arising from the first basal vein in smaller blades or one of the primary lateral veins in the larger blades, weakly sunken above, raised below, 7-15 mm from margin. INFLORESCENCE erect-spreading, as long as or shorter than leaves; peduncle 26-47 cm long, 7-15 mm diam., terete; spathe subcoriaceous, green, faintly to heavily tinged red-violet, broadly lanceolate, (5)9-26 cm long, 1.8-3.2 cm wide, broadest just above base, long-acuminate at apex, inrolled 1-2.5 cm, rounded at base, inserted at 25°-30° angle on peduncle, held at ca. 45° angle from peduncle; stipe 5.5-9 mm long in front, 4.5-7 mm long in back; spadix olive-green (B & K Yellow-green 5/5), sometimes weakly to heavily tinged red-violet, (6)11-24 cm long, 1-3 cm diam. at base, 5-10 mm diam. at apex; flowers rhombic to sub-4-lobed, 3.7-5 mm long, 3.8-4 mm wide, the sides ± straight to weakly sigmoid; 7-10 flowers visible in the principal spiral, 6-13 flowers visible in the alternate spiral; tepals matte, minutely papillate, lateral tepals 1.8-2.9 mm wide, the inner margin broadly rounded, thin, paler green; pistil green, emergent, raised; stigma linear, 0.7 mm long, ca. as long as pistil; stamens emerging at base, 3 or 4 stamens emerging in the first 2-3 spirals before first emerges in next spiral, held over pistil, retracting to edge of tepals before opening; filaments weakly exserted, translucent, as wide as anthers; anthers pale yellow, 0.9-1.2 mm long, 1.2-1.4 mm wide; thecae ellipsoid, scarcely divaricate; pollen cream. INFRUCTESCENCE probably with orange berries.


    Native to:

    Guatemala, Mexico Southeast

    Anthurium titanium Standl. & Steyerm. appears in other Kew resources:

    First published in Publ. Field Columb. Mus., Bot. Ser. 23: 211 (1947)

    Accepted by

    • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.


    CATE Araceae
    • Croat, T.B. 1983. A revision of the genus Anthurium (Araceae) of Mexico and Central America. Part I: Mexico and Middle America. Annals of the Missouri Botanical Garden.. 70 (2): 211-420


    CATE Araceae
    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0