Resurrection of Dendropemon sintenisii (Loranthaceae): An endemic mistletoe from Puerto Rico

Marcos A. Caraballo-Ortiz, Tomás A. Carlo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

On 25 November 1885 German botanist Paul Ernst Emil Sintenis collected a species of mistletoe in a coffee plantation in Aibonito, a municipality located in the central mountain range of Puerto Rico (Sintenis 2856, GOET). Ignatius Urban examined the specimen and name it Dendropemon sintenisii Krug & Urban (Urban 1897: 25) in honor of its collector. After its description D. sintenisii remained unknown in Puerto Rico and, although it was included in all major floristic treatments of the island, the species was a taxonomic ghost known only from the type specimen (Liogier 1985, Liogier & Martorell 2000, Axelrod 2011). No new specimens were labeled with the name in any herbarium since its original description and serious doubts existed among local botanists about its validity. This uncertainty resulted in the provisional placement of D. sintenisii under the synonymy of D. caribaeus Krug & Urban (Urban 1897: 27) in the recent monograph of Dendropemon by Kuijt (2011). This placement was justified because both the vegetative structures and infructescences of D. sintenisii share similarities with D. caribaeus, and the type specimen lacks flowers, which are key to confidently identify Dendropemon species (Kuijt 2011). In this manuscript we show that D. sintenisii is a species with characters that set it apart from other Dendropemon species found in Puerto Rico and elsewhere. We show that D. sintenisii has been collected many times after its discovery, but that specimens in all herbaria have been universally misidentified. In fact, we have re-identified 40 specimens as D. sintenisii that were collected in Puerto Rico from 1913 to 2012 (cited below). We explain the basis of the taxonomic confusion and provide illustrations and fundamental information on the morphology, distribution and host plants of D. sintenisii. We also provide an updated key for the identification of the four species of Dendropemon found in Puerto Rico.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalPhytotaxa
Volume82
Issue number1
DOIs
StatePublished - Feb 1 2013

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

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