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Issue: Vol. 411 No. 3: 23 July 2019
Type: Article
Published: 2019-07-23
DOI: 10.11646/phytotaxa.411.3.1
Page range: 129–182
Abstract views: 34
PDF downloaded: 3

Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region

University of South Florida, Florida International University
Jardín Botánico Nacional, Universidad de La Habana, Carretera El Rocío km 3½, Calabazar, Boyeros, La Habana, Cuba. C.P.19 230
Natural History Museum of Jamaica, Institute of Jamaica, 10-16 East Street, Kingston, Jamaica.
Fairchild Tropical Botanic Garden, 10901 Old Cutler Rd, Coral Gables, Florida, USA 33156.
Jardín Botánico Nacional, Avenida República de Colombia, Santo Domingo, Dominican Republic
Herbario, Jardín Botánico, Universidad de Puerto Rico, 1187 Calle Flamboyán, San Juan, Puerto Rico, 00926
3700 Kazincbarcika, Csalogány str. 34, Hungary
Department of Environment, PO Box 10202, 580 North Sound Road, Grand Cayman KY1-1002, Cayman Islands
The Institute for Regional Conservation, 100 East Linton Blvd, Suite 302B, Delray Beach, Florida, USA 33483.
Jardin Botanique des Cayes, Les Cayes, Haiti.
Southern New Hampshire University, 2500 North River Road, Manchester, New Hampshire, USA 03106.
1179 University Drive, Ohio State University at Newark, Newark, Ohio, USA 43055.
Fundación Ecotonos, Valle del Cauca, Cali, Colombia.
San Carlos, California, USA 94070.
Antilles Bahamas cactus Florida Mexico South America West Indies

Abstract

Taxonomic treatments of Pilosocereus in the Andean and Caribbean regions have varied widely. Recent authors often recognized three species only (P. lanuginosus, P. polygonus, and P. royenii), while Britton & Rose in 1920 (sub Cephalocereus) recognized 18 species in the same region. A revision of Pilosocereus is necessary, and it was carried out by the study of both herbarium specimens and living plants. Twelve species of Pilosocereus are recognized in the present paper for the Andean and Caribbean regions, including one new combination, i.e. P. curtisii, and one new species, i.e. P. jamaicensis. Typifications are provided for several names, including the Linnaean basionym Cactus royenii. Morphological descriptions, distributions, and an identification key of the recognized species are provided.