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Ixora siphonantha Oliv. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenSearch in Flora do Brasil 2020Search in Reflora - Virtual Herbarium Decrease font Increase font Restore font

Published In: Icones Plantarum t. 2236. (Icon. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/10/2009)
Acceptance : Accepted
Taxon Profile     (Last Modified On 1/29/2015)
Distribution: Endemic to Madagascar
Lifeform/Habit: Shrub, Tree
Vegetation Formation: Forest
Bioclimate: Dry, Humid, Subhumid
Elevation: 0-499 m, 500-999 m
Provinces: Antsiranana, Fianarantsoa, Toamasina
Protected areas and other important sites: Ankarana, Ile Ste Marie, Loky Manambato (Daraina), Mananara Nord, Marojejy, Masoala, Zahamena
Rarity: Known from more than 5 localities in Madagascar.
Notes: This species is characterized by its robust habit; its large, rather narrowly elliptic, petiolate, generally subcoriaceous leaves that are sharply acuminate at the apex and usually dry with a dark brown color and the venation not very evident; its pedunculate, several- to many-flowered, lax inflorescences with developed bracts; its sessile to very shortly pedicellate flowers with triangular calyx lobes and long, white to pink or red corollas with the tube (10)15-22 cm long; and its medium-sized fruits. This species has been commonly collected, particularly in the Masoala Peninsula region. Ixora siphonantha has been confused with several other, less commonly collected Ixora species with coriaceous petiolate leaves and long corollas, in particular Ixora crassipes, Ixora densithyrsa, and Ixora mocquerysii. De Block (2007) noted that although the pollinators have not been observed, this species is certainly pollinated by hawkmoths.




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