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Ixora crassipes Boivin ex De Block 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 HerbariumSearch in Living Collections Decrease font Increase font Restore font

Published In: Nordic Journal of Botany 25: 76–78, fig. 1. 2007. (Nordic J. Bot.) Name publication detail

Project Name Data (Last Modified On 6/10/2009)
Acceptance : Accepted
Taxon Profile     (Last Modified On 10/9/2017)
Distribution: Endemic to Madagascar
Lifeform/Habit: Shrub
Vegetation Formation: Forest
Elevation: 0-499 m, 500-999 m
Bioclimate: Dry, Subhumid
Provinces: Antsiranana
- Antsiranana Regions: DIANA, SAVA
Protected areas and other important sites: Galoko Kalobinono, Lokobe, Loky-Manambato, Manongarivo, Marojejy
Type(s) of accepted name: L.H. Boivin - 2016
Notes: This species is characterized by its robust habit; its large, petiolate, rather narrowly elliptic, coriaceous leaves that are sharply acuminate at the apex and usually dry with a yellow-green color and the venation not very evident; its lax, pedunculate, several-flowered inflorescences with reduced bracts; its pedicellate flowers with a truncate calyx limb and long, white to pink corollas with the tube 17-22.5 cm long; and its medium-sized fruits. It has been confused with Ixora siphonantha, with thinner-textured leaves and well developed bracts. De Block (2007) noted that although the pollinators have not been observed, this species is certainly pollinated bhttp://www.tropicos.org/Projects/AnswerPage.aspx?&nameid=50153644&attributegroupid=17&itemattributegroupid=193384&tabid=64&projectid=17#y hawkmoths.

Critical remark (De Block, 2007): One specimen from Daraina is tentatively included in I. crassipes even though it falls somewhat outside the distribution range of the typical material. Ranirison 630 possesses the lax, almost ebracteolate inflorescences, the absence of articulation just below the flower, the long corolla tubes and the pale-drying, subcoriacous leaves which are characteristic for the species. It differs from the other specimens by the smaller leaves (10–12.5 × 4–5 cm) with somewhat shorter petioles (0.5–1.2 cm long) and acute tips and the shorter flowers (corolla tubes 14–15 cm long, lobes ca 15 mm long) with the style less exserted (8–10 mm) and the stigmatic lobes longer (4–5 mm long). Also, the calyx, while usually truncate, is subtruncate in certain flowers.




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