IUCN threat status:

Least Concern (LC)

Comprehensive Description

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2. Leptolaena cuspidata Baker

J. Linn. Soc. Bot. 25: 296 (1889). Leptolaena multiflora var. cuspidata (Baker) H. Perrier, Bull. Soc. Bot. France 78: 60 (1931).Type: Baron 5835 [cited in protologue as " next 5836 "], Madagascar, chiefly from north-west Madagascar, fr. (holo-, K!; iso-, P!).

Leptolaena cuspidata is a shrub to small tree that occurs in the subhumid forest of the Sambirano region in NW Madagascar, below 500 m elevation (Fig. 3). It can be recognized by its distinctive densely golden yellow granular farinose involucre and lanceolate to ovate, longcuspidate leaves.

Fig . 3.Distributions of Leptolaena , mapped on the bioclimatic zones of Madagascar (after Cornet 1974; see Schatz 2000). L. cuspidata (& # 9650;), L. pauciflora ().

Vernacular names.Zahana, Zahena, Zana.

Conservation status.With an extent of occurrence <20,000 km 2, an area of occupancy <2,000 km 2, and only three of 14 sub-populations encompassed within protected areas, L. cuspidata is assigned a preliminary status of Vulnerable (VU).

Material examined.Baron 5836, 6283, without precise locality; Baum 333, Ambodimanga; Birkinshaw 1, Antsatsaka; Bosser 20152, Ampasindava; Cours 5674, Mt. Ambohiparaka; Decary 938, 1165, 2095, Maromandia; Decary 14775, 14794, Ambilobe; Derleth 89, Manongarivo RS; Gentry 11870, 57 - 58 km N of Ambanja; Hildebrandt 3306, Vavatobe; Humbert 18752, Ambanja; Humbert 19041, Ambodimagodro; Humbert 25580, SW of Ambilobe; Humbert 32649, Ankarana RS; Humbert 32873, Ambohipiraka; Perrier de la Bathie 3021, Ambanja; Perrier de la Bathie 3023, Maromandia; Perrier de la Bdthie 5340, Ambohipiraka; Perrier de la Bdthie 15677, bas Sambirano; Phillipson 2017, Beramanja; Ravololonanahary 37, Ambato; Service Forestier 3078, Irano (Irarona) to Beramanja; Service Forestier 3141, 3142, Andilamboay; Service Forestier 3171, Tsaratanana RNI; Service Forestier 7501, Bekaka to Benavony; Service Forestier 8225, Anjahakely (= Ampahakely); Service Forestier 10434, Ambilobe; Service Forestier 11486, Manongarivo RS; Service Forestier 12987, Anjakely; Stiefel 68, Manongarivo RS; Totozafy Be 563, Manongarivo RS.


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Source: Plazi.org

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