Tetrastylidium peruvianum Sleumer

  • Authority

    Sleumer, Hermann O. 1984. Olacaceae. Fl. Neotrop. Monogr. 38: 1-159. (Published by NYBG Press)

  • Family

    Olacaceae

  • Scientific Name

    Tetrastylidium peruvianum Sleumer

  • Type

    Type. Peru. Loreto: 17 km SE of Iquitos, fl, fr, Croat 18450 (holotype, MO; isotypes, AAU, F, NY).

  • Synonyms

    Tetrastylidium engleri Schwacke

  • Description

    Latin Diagnosis - Arbor glabra 6-15 (-20) m alta. Ramuli graciles olivaceo-brunnei, striatuli, ru-gulosi. Folia lanceolato- usque oblongo-, interdum subovato-elliptica, apice sat abrupte acuminata, basi cuneata usque rotundata, firme subcoriacea, in sicco olivaceo-brunnea, opaca, utrinque dense minuteque rugosula et tuberculata, margine subrevoluta, (8-) 10-20 x (3-)3.5-6 cm, nervis lateralibus 6-7(-8)-paribus arcuato-ascendentibus margine vix conjunctis, supra haud raro leviter impressis, subtus prominentibus, venis transversis subobscuris; petioli rugulosi, distaliter incrassati, 1-1.5 cm longi, 1-1.5 mm crassi. Inflorescentiae axillares fasciculatae (2-)3-7-florae, basi bracteolis minutis glomerulos vel interdum axem usque ad 2 mm longam formantibus instructae; pedicelli subgraciles, 6-10(-12) mm longi. Calyx cupuliformis, sub anthesi (1-) 1.5 mm altus, limbo breviter 4-dentato. Petala 4, lineari-oblonga, virescenti-lutescentia vel pallide aurantiaca, extus glabra, intus pilis retrorsis densis tomentosa, 5-6 x 2 mm. Drupa subglobosa, in vivo viridis (plane matura?), sicco nigrescens, ca. 1.5 cm diam., calyce accrescente patelliformi in 1/5 parte inferiore obtecta, pedunculo 12-20 mm longo, 1 mm crasso.

  • Distribution

    Brazil (Amazonas, border with Peru), Peru (Loreto); in primary humid upland forest, at low alt., apparently rare.

    Peru South America| Loreto Peru South America| Brazil South America| Amazonas Brazil South America|