Novelties from the Northern Mountains Complex of Madagascar IV: A new Rinorea Aubl. (Violaceae) of restricted range from the Galoko and Kalabinono massifs

Abstract

Rinorea callmanderi Wahlert (Violaceae), a new species from northwestern Madagascar, is described and illustrated. This new species was discovered during an intensive floristic inventory in the botanically unexplored Kalabinono and Galoko massifs. Based on morphological and molecular evidence, the new species is placed in Rinorea subsect. Verticillatae Engl., the most species-rich group of Rinorea Aubl. in Madagascar. Rinorea callmanderi is morphologically most similar to Rinorea mutica (Tul.) Baill. by its opposite-leaved phyllotaxy and condensed, subsessile cymose inflorescence, but differs by the shape and size of the leaf, the pattern of pubescence on the inner surface of the petal, and the presence of dorsal and ventral anther connective scales. The new species is described and provided with line drawings, a distribution map, a discussion on its morphology, and a preliminary conservation assessment using the IUCN Red List Categories and Criteria.Résumé WAHLERT, G.A. (2016). Nouveautés du Complexe des Montagnes du Nord de Madagascar IV: Une nouvelle espèce à distribution restreinte dans le genre Rinorea Aubl. (Violaceae) des massifs montagneux du Galoko et du Kalabinono. Candollea 71 : 205-210. En anglais, résumés anglais et français.

Novelties from the Northern Mountains Complex of Madagascar VI: Kalanchoe apiifolia (Crassulaceae), a particular new species

“…This collection effort has revealed several new species in various families, e.g. Burseraceae (Daly et al, 2015), Meliaceae (Callmander et al, 2009(Callmander et al, , 2012, Oleaceae (Callmander et al, 2009a;Hong-Wa, 2016), Pandanaceae (Callmander et al, 2008(Callmander et al, , 2021, Rubiaceae (De Block, 2014;Davis & Rakotonasolo, 2021), or Violaceae (Wahlert, 2016). Since these inventories, a forest corridor between the previously protected areas of Marojejy, Anjanaharibe-Sud, and Tsaratanana has been officially protected.…”

Six new species of coffee (Coffea) from northern Madagascar

“…Until recently the forests of Loky Manambato and Galoko-Kalobinono were almost unknown botanically. The intense inventories of the last two decades have highlighted these two forest areas as places of high-level regional endemism (Callmander et al 2008(Callmander et al , 2009(Callmander et al , 2012(Callmander et al , 2020Gautier et al 2006;Nusbaumer et al 2010;Phillipson et al 2018;Randrianasolo & Lowry 2009;Ranirison et al 2018;Schatz & Lowry 2020;Tahinarivony & Callmander 2018;Wahlert 2016). These data and other information has led to Loky Manambato and Galoko-K alobinono b eing encompassed i n Madagascar's protected area network (Goodman et al 2018).…”

Novelties from the Northern Mountains Complex of Madagascar V: A new threatened Pandanus (Pandanaceae) from the Kalobinono massif

“…Starting in 2004, intensive botanical inventories have generated a total of 1412 collections for this region (Callmander et al, 2018). This collection effort has revealed several new species in families such as Anacardiaceae (Randrianasolo & Lowry, 2009), Annonaceae (Callmander et al 2009a;Johnson & Murray, 2020), Araliaceae (Callmander et al, 2009a), Burseraceae (Daly et al, 2015), Malvaceae and Meliaceae (Callmander et al, 2009a), Oleaceae (Callmander et al 2009a;Hong-Wa, 2016), Pandanaceae (Callmander et al, 2008), Rubiaceae (De Block, 2014), Sapindaceae (Schatz et al, 2017) and Violaceae (Wahlert, 2016). Overall, a total of 14 species are currently endemic to the Galoko-Kalobinono massifs (Callmander et al, 2018).…”