Manihot triphylla Pohl

  • Authority

    Rogers, David J. & Appan, S. G. 1973. Manibot, Manihotoides (Euphorbiaceae). Fl. Neotrop. Monogr. 13: 1-272. 1 chart. (Published by NYBG Press)

  • Family

    Euphorbiaceae

  • Scientific Name

    Manihot triphylla Pohl

  • Type

    TYPE. Pohl 1184 (and on some specimens also 1708). Brasil, Goias: ad Serra de Cristaes (syntypes, F, K, M, W-3).

  • Synonyms

    Jatropha triphylla Steud., Manihot angustifrons Müll.Arg., Manihot stenophylla Pax & K.Hoffm., Manihot triphylla var. genuina Pax, Manihot gracilis var. triphylla (Pohl) Müll.Arg.

  • Description

    Description - Shrubs, ca 1.0 m tall. Stems glabrous. Leaves alternate; stipules caducous; petioles ca 8.0 cm long, terete, glabrous, petiole attachment to lamina basal, nonpeltate; lamina membranaceous, abaxial surface wax pattern reticulate; venation camptodromous, veins glabrous; lamina 3 lobed, median lobes linear, ca 15.0 cm long, ca 0.8 cm wide, apex acuminate, base of lobes extremely constricted and less than 0.1 cm wide, width between base of sinus and petiole-lamina junction less than 0.1 cm; lowest lobes form an angle of less than 45° to the median lobes, slightly shorter than median lobes. Inflorescence a monoecious, terminal panicle, ca 10.0 cm long, few branched, flowers clustered at the terminal region of peduncles, with a bluish white bloom, all parts glabrous; bracteoles and bractlets setaceous. Pistillate flowers restricted to the base of the upper 1/3 of the inflorescence; pedicels 1.0 cm long; tepal 0.8 cm long, cleft to base into 5 lobes. Staminate buds bifusiform, flowers small, tepal 0.8 cm long, cleft 1/3 way down into 5 lobes; stamens 10, in 2 whorls of 5 each. Capsules and seeds non vidi.

  • Discussion

    Formerly recognized as distinct species, Manihot angustifrons and M. stenophylla join at a C-value of 0.96 with M. triphylla, and thereafter remain as a distinct cluster until they join several other members of the Graciles section at C-value. 897.

  • Distribution

    (Fig 65B). Brasil, states of Goias, Minas Gerais and Distrito Federal. Alt ca 1000 m, among rocks.

    Brazil South America| Goiás Brazil South America| Distrito Federal Brazil South America| Minas Gerais Brazil South America|