Figure 6 - uploaded by Rebecca Hilgenhof
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A: The forest liana Passiflora amoena in its natural habitat, French Guiana (R. Hilgenhof, 2011), B: close-up of flower (R. Hilgenhof, 2011)
Source publication
The study of the paper is dedicated to a rather unusual subgenus of Passiflora. The subgenus Astrophea includes roughly 60 species of woody vines and lianas including 10 which are freestanding trees. Discussed are Classification, Morphology, Conservation status, Distribution & Habitats, Ecology and Ex-situ cultivation.
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Citations
... The subgenus Astrophea (DC.) Masters includes 61 species of shrubs, trees, or lianas confined to tropical areas of South America, with three species extending north into Mesoamerica (Escobar 1990(Escobar , 1994Mezzonato-Pires et al. 2019). This subgenus has a chromosome number of n = 12 (Löve 1987), divided into two supersections, five sections, and two series (Feuillet and MacDougal 2003) The dates of divergence and diversification for the subgenus Astrophea have been estimated to be about 13.8 Mya (Muschner et al. 2012), 10.77 Mya (Abrahamczyk et al. 2014), and up to approximately 20.59 Mya (Sader et al. 2019 Killip) has 18 species, with seven species in Brazil at the center of their diversity; the next most diverse country is Colombia with six species (Escobar 1990;Ocampo et al. 2010;Hilgenhof 2012). The species of the section Capreolata include vigorous lianas which are very easy to recognize by their weak tendrils, minute stipules, unilobed leaves, foliar nectaries at the apex of the petiole, corona distributed in 3-5 series of filaments that are white, yellow or orange and marked with dark red, and a tubular operculum of more than 1 cm (Feuillet and MacDougal 2003). ...
Passiflora mariquitensis Mutis ex L.Uribe, a Colombian endemic species that belongs to the subgenus Astrophea (DC.) Masters, was rediscovered in a disturbed forest in Mariquita (Tolima), where it has not been reported since 1784. We redescribe the species, providing data on morphology, ecology, and geographic distribution. It can be recognized from P. pittieri, its relative species, mainly by 6 or 10 lateral nerves to each side of the leaf, the yellow-white color of the four series of corona filaments, and the presence of rings in the nectary chamber. Passiflora mariquitensis is Critically Endangered due to its restricted occurrence, and conservation actions are urgent. Citation: Ocampo JA, Velásquez AI, Velásquez JO (2020) A rediscovery for the Colombian flora: Passiflora mariquitensis Mutis ex L.Uribe (Passifloraceae), a species lost for more than two centuries. Check List 16 (6):
Passiflora emarginata Bonpl. (synonyms Astrophea emarginata (Bonpl.) M.Roem. and Passiflora caucaensis Holm‐Niels.), a medium‐sized tree from Colombia, is described and illustrated. Its history, taxonomy, conservation status, observations from the wild and cultivation including its propagation are discussed.
