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1 February 2021 A new species of Aetanthus (Loranthaceae) from Colombia with notes on A. engelsii
Jhon S. Murillo-Serna, Francisco J. Roldán-Palacio, Isabel Carmona-Gallego, Fernando Alzate
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Abstract

Murillo-Serna, J.S., F.J. Roldán-Palacio, I. Carmona-Gallego & F. Alzate (2021). A new species of Aetanthus (Loranthaceae) from Colombia with notes on A. engelsii. Candollea 76: 71–76. In English, English and Spanish abstracts.

Aetanthus alternifolius F.J. Roldán, Carmona, Alzate & J.S. Murillo (Loranthaceae) is newly described and illustrated from the department of Santander in northeastern Colombia. This new mistletoe species, known only from the type locality, is discriminate by its indeterminate shoots, alternate or subopposite, obovate leaves, cymose inflorescences bearing three dyads, flower buds c. 9 cm long, with a finely toothed and sometimes fissured calyculus. Its morphological affinities are discussed especially in relation to A. colombianus A.C. Smith and A. coriaceus Patsch. The rediscovery of original material in P of the poorly known Phyllostephanus engelsii Tiegh. (≡ Aetanthus engelsii (Tiegh.) Engl.) is discussed. An emended description is provided and a lectotype is designated. An identification key to the ten species of Aetanthus (Eichler) Engl. occurring in Colombia is also presented.

© CONSERVATOIRE ET JARDIN BOTANIQUES DE GENÈVE 2021
Jhon S. Murillo-Serna, Francisco J. Roldán-Palacio, Isabel Carmona-Gallego, and Fernando Alzate "A new species of Aetanthus (Loranthaceae) from Colombia with notes on A. engelsii," Candollea 76(1), 71-76, (1 February 2021). https://doi.org/10.15553/c20121v761a6
Received: 8 August 2020; Accepted: 28 November 2020; Published: 1 February 2021
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KEYWORDS
Aetanthus
Colombia
hemiparasitic plants
Loranthaceae
new species
nomenclature
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