A synoptic revision of the Malagasy endemic genus Calantica Jaub. ex Tul. (Salicaceae) Author Applequist, Wendy L. Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166 - 0299 (USA) wendy.applequist@mobot.org Author Phillipson, Peter B. Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166 - 0299 (USA) & Muséum national d’Histoire naturelle, Département Systématique et Évolution, case postale 39, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) peter.phillipson@mobot.org Author Schatz, George E. Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166 - 0299 (USA) george.schatz@mobot.org text Adansonia 2014 3 2014-06-30 36 1 83 102 http://dx.doi.org/10.5252/a2014n1a8 journal article 10.5252/a2014n1a8 fe58a0bf-f061-4b8f-ac72-c5737d3d22c7 1639-4798 5208455 1. Calantica biseriata H. Perrier Mémoires du Muséum national d’Histoire naturelle, Paris , n.s., 13: 285 (1940) . — Type: Madagascar , Prov. Mahajanga , bords rocailleux et boisés du Kapiloza (Ambonga) , II.1905 , fl., Perrier de la Bâthie 1799 ( lecto- , designated by Sleumer [ Adansonia , sér. 2, 12: 543], P ! ; iso- , L , photo seen). ADDITIONAL MATERIAL EXAMINED. — Madagascar . Prov. Antsiranana , Diego region, Joffreville district, c. 27 km SW of Diego Suarez ( Antsiranana ) on Diego Suarez-Joffreville road and c. 3.75 km E of Joffreville city center, c. 500 m from road on road to habitation, 12°28’31”S, 49°13’07”E, 660 m , 17.IV.1993 , fr., Harder et al. 1624 ( MO ). Prov. Mahajanga , Tsingy de Bemaraha N of the Manambolo river, 19°09’S, 44°49’E, 50 m , 5.XII.1996 , fl., Jongkind et al. 3398 (MO). — Environs rivière Ambodiria , à l’E d’Ambinda (RN 9, près d’Antsalova), 18°38’S, 44°42’E, 100-200 m , 4.XII.1992 , buds, Labat & Deroin 2294 (MO, P). — Tsingy du Bemarahy [ Bemaraha ] (9 e Réserve ), Andranoboka , 200-300 m , 27.XI.1932 , Leandri 548 (P×2). — Bemaraha Nord , 20-30.XI.1932 , fl., Leandri 663bis (P). — Antsingy , vers Ambodiriana (E d’Antsalova), bord de la piste Tsiandro-Antsalova , 100- 150 m , 9.XII.1952 , fr., Leandri 2096 (MO, P×2). — Kay , près Kimadio , environs de Mavetanana [sic], IX.1905 , fl., Perrier de la Bâthie 6730 (P). — R.N. 8 [ Namoroka ], canton Andranomavo , district Soalala , 8.IV.1952 , fl., Réserves Naturelles 3894 (MO, P). — R.N. IX [ Bemaraha ], district Antsalova , 7.XII.1952 , Réserves Naturelles 4674 (P). — Forêt de l’Antsingy, clairière d’Ambodiriana (route Antsalova-Tsiandro ), 9.XII.1952 , fr., Service Forestier 6806 (MO, P). — Bekorabaka , canton Kandreo , district Maevatanana , bord d’un ruisseau ( Bekoratsaka ), 27.XII.1957 , fr., Service Forestier 19033 (P×2). — Andrafiamena [ River ] (affluent du haut Rodo ), 8.II.1966 , fl., Service Forestier 24545 (P). DISTRIBUTION AND ECOLOGY Calantica biseriata is native to forests of western to northern Madagascar, often bordering rivers or streams, on limestone. REMARKS Calantica biseriata is a tree to 20 m , sometimes multi-trunked, with finely fissured bark. The petals are reddish or reddish-green, while the sepals may be green; the glands and anthers are (at least sometimes) yellowish and the filaments reddish. Ethnobotany The semi-soft wood of Calantica biseriata is used for construction ( Service Forestier 19033 ). Vernacular names Hazoambo ( Labat & Deroin 2294 ); Hazofoty ( Leandri 548 ). CONSERVATION STATUS The preliminary assessment of the conservation status of Calantica biseriata is Vulnerable (VU B2ab(iii)). Although the Extent of Occurrence is 91 262 km 2, the Area of Occupancy is estimated to be less than 2000 km 2, and fewer than ten locations are known; remaining natural vegetation in most of the known range is experiencing anthropogenic decline in area and quality. It is present in two protected areas, Bemaraha and Namoroka.