Two new species of Burmeistera (Campanulaceae: Lobelioideae) from Antioquia, Colombia

Favio Antonio González Garavito,Jorge Mario Vélez-Puerta

doi:10.15446/caldasia.v40n2.70457

Abstract

Burmeistera fistulosa and B. reclinata, both from the department of Antioquia (Colombia), are here described and illustrated. The first species is similar to B. tomentosula, from which it differs by the glabrous surfaces, the petiole 1.4–2 cm long, the lamina elliptic to ovate, the reduced subtending leaves, the calyx lobes 2.5–3.5 x 0.8–1.2 mm, the ventral anthers barbate, and the white, obconic to ellipsoids berries. The second species is similar to B. diazii, from which it differs by the narrowly ovate leaves with 5–6 pairs of secondary veins and higher order veins inconspicuous beneath, the glabrous flowers with calyx lobes 5–9 x 0.6–1 mm, half of the corolla length or less, the barbate ventral anthers, and the white berries suffused with vinaceous lines.

Highlights

The neotropical Lobelioideae (Campanulaceae), especially the clade with the sister genera Burmeistera, Centropogon and Syphocampylus, have recently been recognized as exceptional in terms of rapid speciation rates that appear to be correlated to the uplift of the Andes, and the biotic agents involved in pollination and seed dispersal (Lagomarsino et al 2016)
All the type specimens for the species similar to the new taxa here described were consulted through JSTOR or directly examined at the herbaria COL, Herbario de la Universidad de Antioquia (HUA), MEDEL and NY
Karst. & Triana, from which it differs by the glabrous surfaces, the leaves with petiole 1.4–2 cm long and lamina elliptic to ovate, glabrous beneath, the extremely reduced subtending leaves, the calyx lobes 2.5–3.5 x 0.8–1.2 mm, the corolla glabrous, the ventral anthers barbate, and the berries white and obconic to ellipsoid

Summary

Introduction

The neotropical Lobelioideae (Campanulaceae), especially the clade with the sister genera Burmeistera, Centropogon and Syphocampylus, have recently been recognized as exceptional in terms of rapid speciation rates that appear to be correlated to the uplift of the Andes, and the biotic agents involved in pollination and seed dispersal (Lagomarsino et al 2016).

Results

Conclusion