Friday, May 12, 2017

[Botany • 2017] Buchnera carajasensis • A New Species (Orobanchaceae) from the Canga Vegetation of the Serra dos Carajás, Pará, Brazil

Buchnera carajasensis Scatigna & N. Mota

Buchnera carajasensis is described and illustrated. Information on its conservation status, taxonomy, habitat, geographic distribution, and phenology, along with a key to the Buchnera species found in Pará, is provided. The new species had previously been confused with B. tenuissima, a Mexican species, and is also similar to B. palustris, but exhibits differences in the inflorescence shape, in the indumentum, and in reproductive traits. The new species is apparently endemic to ironstone outcrops of the Serra dos Carajás, northern Brazil, and is assessed as Endangered in accordance with the IUCN criteria.

Key Words: Amazon, endemism, ironstone outcrops, Scrophulariaceae

Buchnera carajasensis Scatigna & N. Mota sp. nov.

Fig. 2. Buchnera carajasensis in habitat. A overall aspect of the plant; B basal portion of the plant; C – D flower in lateral view; E inflorescence with flower and fruit; F – G flower in front view; H – J fruit in lateral view, with persistent style and stigma.
PHOTOS: A, E, G P. L. VIANA; B – D, F, H – J N. F. O. MOTA. DOI: 10.1007/s12225-017-9698-1

ETYMOLOGY. The specific epithet refers to the name of the Serra dos Carajás, where the species is believed to be endemic.

André Vito Scatigna, Nara Furtado de Oliveira Mota and Pedro Lage Viana. 2017. Buchnera carajasensis (Orobanchaceae), A New Species from the Canga Vegetation of the Serra dos Carajás, Pará, Brazil.  
Kew Bulletin.  72; 25.   DOI:  10.1007/s12225-017-9698-1

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