Thursday, September 4, 2025

[Botany • 2025] Magnolia tapichalacaensis (Magnoliaceae: sect. Splendentes) • A New Species from the Andean foothills of Zamora Chinchipe, Ecuador

 

 Magnolia tapichalacaensis  Á.J.Pérez & E.Rea,

in Pérez, Rea, Martínez, Hidalgo, F. Mendoza, R. Mendoza, Díaz, Archila, Burgess, Zenil-Ferguson et Vázquez-García, 2025. 
 
Abstract
Magnolia tapichalacaensis is described from the cloud forest remnants of Quebrada Honda, Tapichalaca Reserve in the Zamora Chinchipe Province, south-east Ecuador. This species is characterized by its tomentose leaves and hypsophyll, flowers 5.6–7.5 cm in diameter with three sepals that are abaxially tomentose to villous and adaxially glabrous, petals 9–10, stamens 54–63, gynoecium densely tomentose with 4–5 carpels and densely tomentose ellipsoid fruits. An illustration, photos and a distribution map for the new species are provided. Relationships with other species are discussed, and preliminary conservation status of Critically Endangered (CR) is assigned. Finally, an updated list of Ecuadorian magnolias is presented.

Andes, Cloud Forest remnants, Conservation, Jocotoco Foundation, Neotropical taxonomy, Tapichalaca Reserve, Magnoliids

 Magnolia tapichalacaensis.
A. Habit. B. Bark. C. Branches. D. Young branch showing the stipule and the annular stipular scar. E. Leaf and lateral veins. F. Underside of leaf showing the tomentose indumentum.
A–D from Pérez et al. 12679; E from Pérez et al. 12183; F from Pérez et al. 12684. Photographs by Álvaro J. Pérez.
 
 Magnolia tapichalacaensis.
 A. Hypsophyll. B. Flower bud without hypsophyll. C. Flower lateral view. D. Flower in male phase. E. Stamens with connectives. F. Immature fruit.
A, C–E from Jaramillo & Mendoza 3098; B from Pérez et al. 12684; F from Pérez et al. 12198. Photographs by Nelson Jaramillo (A, C–E) and Álvaro J. Pérez (B, F).
 
Magnolia tapichalacaensis Á.J.Pérez & E.Rea, sp. nov.  

Magnolia tapichalacaensis is like Magnolia bankardiorum Dillon & Sánchez Vega (2009: 7) and Magnolia lozanoi Vázquez & CastroArce in Vázquez-García et al. (2012: 114), but differs from these in several morphological features (Table 2).


Álvaro J. PÉREZ, Edison REA, Jennifer MARTÍNEZ, Fanny HIDALGO, Franco MENDOZA, Ramiro MENDOZA, Nelson Jaramillo DÍAZ, Fredy ARCHILA, Kevin S. BURGESS, Rosana ZENIL-FERGUSON, J. Antonio VÁZQUEZ-GARCÍA. 2025. Magnolia tapichalacaensis (M. sect. Splendentes, Magnoliaceae), A New Species from the Andean foothills of Zamora Chinchipe, Ecuador.  Phytotaxa. 716(4); DOI: doi.org/10.11646/phytotaxa.716.4.2  [2025-09-04]