Three new species of Ocotea (Lauraceae) from the campos rupestres of Brazil

Abstract

Three new hermaphrodite species of Ocotea (Lauraceae) from the campos rupestres of Brazil are described and illustrated: Ocotea pumila, which is known from Bahia state; and Ocotea colophanthera and Ocotea rupestris both from Minas Gerais state. Their diagnostic features are pointed out, and a discussion of their relationships to other species of Ocotea is provided.

A New and Threatened Species of Passiflora Section <I>Decaloba</I> (Passifloraceae) from Minas Gerais State, Brazil

“…O reconhecimento da importância biológica da Serra Negra como parte do Complexo da Mantiqueira no sul da Zona da Mata de Minas Gerais, corroborada por estudos decorrentes de um amplo levantamento florístico, realizado até 2010 (Abreu et al 2007(Abreu et al , 2011Batista et al 2008;Menini Neto et al 2009;Abreu & Menini Neto 2010;Assis & Mello-Silva 2010;Feliciano & Salimena 2011;Matozinhos & Konno 2011;Valente et al 2011;Dutra et al (2012); Blaser et al (2012); Mezzonato-Pires et al (2013)), além de um sítio virtual de divulgação da riqueza florística desta área (<http://www.ufjf.br/floraserranegra/>), levou ao desenvolvimento deste inventário a partir de 2003.…”

Aniba subbullata (Lauraceae), a new species from the Chapada Diamantina, Bahia, Brazil with notes on the leaf epidermis of congeneric species

“…Among the species that have been described from the region of the Chapada Diamantina in Bahia, are a species of Aiouea ( A. rubrinervia Lorea‐Hern. in Rohde et al., ), five species of Ocotea (Yasuda, ; Assis and Mello‐Silva, ; Moraes and van der Werff, ), and one species of Persea (van der Werff, ), but none of Aniba . The last species of Aniba described from Brazilian collections was A. ferrea Kubitzki (Kubitzki and Renner, : 80), from the Amazon region, showing that the recognition of novelties within Aniba is no easy task, for the reasons mentioned by Matta et al .…”

Taxonomic and Nomenclatural Changes in the Ocotea indecora Group (Lauraceae)

“…is the largest genus of New World Lauraceae and comprises 300 to 350 Neotropical species plus 50 to 60 African species (Rohwer, 1993;Madriñ án, 2004). It is highly diversified in lowland and montane forests from Mesoamerica to eastern Brazil (e.g., Rohwer, 1986;Oliveira-Filho & Fontes, 2000;Vicentini & van der Werff, 2000;van der Werff, 2002;Baitello & Marcovino, 2004;Madriñán, 2004;Assis et al, 2005;Quinet, 2005Quinet, , 2006. The modern circumscription of Ocotea started with Mez (1889), who treated it in a much broader circumscription than that of Nees von Esenbeck (1833, 1836 or Meisner (1864Meisner ( , 1866.…”

“…In this article, the taxonomic and nomenclatural changes adopted to solve these problems are presented. Species circumscription here is based on the taxonomic species concept, in which a species is defined by an exclusive character or a combination of characters (Stuessy, 1990;Assis, 2010;Assis & Mello-Silva, 2010a, b Cinnamomum Schaeff. is characterized by branchlets with continuous growth, usually tripliveined leaves, anthers with four to rarely two pollen sacs, and cupules mostly with persistent tepals on the rim at fruit maturity (van der Werff, 1991;Rohwer, 1993).…”

“…is characterized by branchlets with continuous growth, usually tripliveined leaves, anthers with four to rarely two pollen sacs, and cupules mostly with persistent tepals on the rim at fruit maturity (van der Werff, 1991;Rohwer, 1993). In contrast, the type material of C. bahiense, Monteiro 23489, has branchlets with rhythmic growth (a kind of growth characterized by its periodicity, by cataphylls surrounding the buds, and by the leaves distinctly clustered at the top of the branchlets [Hallé et al, 1978;Assis & Mello-Silva, 2010b] and pinnate leaves, although fruits and cupules have not been seen. Monteiro 23489 fits in our circumscription of Ocotea fasciculata, which has branchlets with rhythmic growth, usually arcuate leaves with areoles 0.2-0.7(-1) mm diam., and tepals three to four times longer than the anthers.…”