Solanaceae Source

A global taxonomic resource for the nightshade family

Peru, October - November 2005

  • Collection trip: Republic of Peru
    Date collected:
    October 2005 to November 2005

    A group of Solanum species – section Regmandra – are found only on lomas. Collections were made at:

    • Lomas de Flor de Amamcaes
    • Lomas de Iguanil
    • variente del Serpentin Pasamayo
    • Lomas de Pachacámac
    • Cerro Reque
    • Cerro Campana.

    Solanum montanum L. was the most common species we found (Figs. 2, 3), but we also collected S. multifidum Lam. (Figs. 4, 5). Solanum montanum is remarkable as some specimens have an underground swollen stem (Fig. 3), although it is not closely related to the potato.

    Fieldwork was carried out in collaboration with the Universidad Nacional Mayor de San Marcos (USM) and Universidad Nacional de La Libertad-Trujillo (HUT). We wish to acknowledge the assistance of Asunción A. Cano (USM), Eric Rodríguez Rodríguez (HUT), Hector Aponte (USM), Suzi Castillo (USM), and Marybel Morales Rojas (USM).

<p>Fig. 1. Cerro Campana in the north of Peru near to Trujillo.</p>

Fig. 2. Solanum montanum, growing on Lomas de Flor de Amancaea, just outside Lima. Note the clavate stigma, characteristic of section Regmandra.

<p>Fig. 3. Solanum montanum from Lomas de Flor de Amancaes showing the large underground swollen stem. The swollen part is particularly large in this example, especially considering the relatively small size of the aerial parts of the plant.</p>

<p>Fig. 4. Solanum multifidum, growing along the Pan American highway at Pasamayo. Note the water droplets that have condensed on the plant (see next slide).</p>

<p>Fig. 4b. Water droplets on Solanum multifidum.</p>

<p>Fig. 5. Flowers of Solanum multifidum.</p>

<p>Suzi Castillo and Jon Bennett pressing collections of Solanum multifidum in the lomas at Pasamayo, Peru.</p>

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith