Sunday, January 22, 2017

[Botany • 2017] Pitcairnia singularis • A New Species (Pitcairnioideae, Bromeliaceae) from Jalisco, Mexico

Pitcairnia singularis  Flores-Argüelles, Espejo & López-Ferr.  


Pitcairnia singularis, known only from the municipality of Puerto Vallarta in the state of Jalisco, Mexico, is here described and illustrated. The new species is characterized by very narrow, epetiolate, deciduous normal leaves, a simple inflorescence with 14–20 pedicellate, secund, white flowers, and petals 1.5–1.7 cm long, without appendages. An identification key has been included for all the species of the genus present in the state of Jalisco, Mexico.

Keywords: Jalisco, Pitcairnia subgenus Pitcairnia, Sierra del Cuale, Monocots

FIGURE 1. Pitcairnia singularis  Flores-Argüelles, Espejo & López-Ferr.  
A. Plants in flower at type locality. B. Detail of the basal portion of Pitcairnia singularis, showing the reduced sheath like and the normal leaves. C. Oak forest habitat of P. singularis Flores-Argüelles, Espejo & López-Ferr. 

Pitcairnia singularis Flores-Argüelles, Espejo & López-Ferr., spec. nov. (Figs. 1–3)
The new species is characterized by the following: deciduous normal leaves without distinct petioles; inflorescence simple, with 14–20 pedicellate, secund, white flowers; petals 1.5–1.7 cm long, without basal appendages.

Type:— MEXICO. Jalisco: municipio de Puerto Vallarta, Ojo de Agua, 20° 31’ 20.22” N, 105° 11’ 37.27” W, 1195 m, bosque de Quercus, 22 August 2013 (fl), A. Flores-Argüelles & A.R. Romero-Guzmán 776 (holotype: UAMIZ, isotype: IBUG).

Etymology:— The specific epithet refers to the singular characteristics of the new species that distinguish it from any other member of the genus.

Alejandra Flores Argüelles, Adolfo Espejo-Serna and Ana Rosa López-Ferrari. 2017.
Pitcairnia singularis (Pitcairnioideae, Bromeliaceae), A New Species from Jalisco, Mexico.  Phytotaxa. 291(4); 275–280.  DOI:  10.11646/phytotaxa.291.4.4


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