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Contribution to the study of Orchidaceae from Madagascar. XXXVIII. Two new species and one new combination for the genus Pectinariella Szlach., Mytnik & Grochocka in Madagascar

par Verlynde, Simon;Ramandimbisoa, Brigitte;Bosser, Jean;Stevart, Tariq
Référence Adansonia, 38, 2, page (219-232)
Publication Publié, 2016-12

Article révisé par les pairs

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Résumé :

Before passing away, Jean Bosser (23rd of December 1922-6th of December 2013) worked on describing two species of Angraecopsis Kraenzl. The manuscript has never been submitted for publication, we thus undertook to complete his work using specimens we collected in Eastern Madagascar. The study of these specimens allowed us to determine that the two species belong to the genus Pectinariella Szlach., Mytnik & Grochocka and that one of these two species was not a novelty but corresponded rather to Pectinariella pterophylla (H. Perrier) Verlynde & Ramandimbisoa, comb. nov., for which we redefine morphological delimitation. We publish the second species under Pectinariella edmundi Bosser ex Verlynde & Ramandimbisoa, sp. nov. Finally, Pectinariella scroticalcar Verlynde & Ramandimbisoa, sp. nov., a third species, endemic to the eastern forests of Madagascar and possessing novel floral characteristics for the genus, is described. For each species, we provide conservation status, illustrations as well as ecological and distribution notes. A determination key of the six species of Pectinariella found in Madagascar is given.