Homalium planiflorum subsp. planiflorum

Applequist, Wendy L., 2018, A revision of Homalium sect. Odontolobus (Salicaceae) endemic to Madagascar, Candollea 73 (1), pp. 27-48 : 43-44

9a. Homalium planiflorum subsp. planiflorum

Leaves narrowly elliptical to elliptical (oblanceolate, aberrantly obovate), (2.8-)3.8-10.3 × (1.1-) 1.3-4 cm. Inflorescences almost always racemose (rarely a racemiform or few-branched panicle), usually borne along length of twigs. Flowers whitish to pale green, pale yellow or cream-colored, 7-8-merous.

Vernacular names. – “Fotsakara” (Service Forestier 15282); “Fotsakara (petits feuilles)” (Service Forestier 2719); “Haraka” (Louvel 68); “Hazombalovary” (Louvel 146); “Hazombarorana” (Cours 2965); “Hazombato” (Ludovic & Rakotoarivony 213, Rabevohitra et al. 3876, Réserves Naturelles s.n., Service Forestier 1577, 1789, 5693, 5858, 5866, 16862, 17810); “Hazombato mena (lahy)” (Réserves Naturelles [Dumazer] s.n.); “Hazomboangy” (Service Forestier 11070); “Hazondrano” (Service Forestier 2861); “Marimbody” (Service Forestier 10155); “Maroankoditra” (Service Forestier 8916); “Masonambatsy” (Service Forestier 14449, 17999); “Menavony ” (Réserves Naturelles 8807); “Moranga ala” (Réserves Naturelles 3344); “Rodrano” (Service Forestier 14404); “Tsimahamasatsokina” (Service Forestier 16259); “Tsofofonjahana” (Bernard 126); “Voangiala” (Service Forestier 15183); “Zanganitofotsy” (Service Forestier 8090); “Zora” (Rakotovao 4713).

Uses. – Wood is used for construction (Service Forestier 16259, 17810, 17999).

Distribution, ecology and conservation status. – Homalium planiflorum subsp. planiflorum occurs most commonly in littoral and coastal eastern forests on sand, though it also occurs in low-elevation humid forests and rarely in mid-elevation forests (to 706 m) or dry forests. It is often described as occasional, but is common enough to be frequently collected. The preliminary assessment of its conservation status is “Least Concern” [LC].

Note. – Homalium planiflorum subsp. planiflorum has been reported to be visited by bees (Ludovic & Rakotoarivony 213).

Selected material examined. – MADAGASCAR. Prov. Antsiranana: Ambohitralalana , Masoala PN , 15°18’45’’S 50°20’30’’E, 75-150 m, 24.XI.1995, fl. & fr., Bernard 126 ( G, K, MO, P) ; Parc Masoala , forêt Ambodipont , 15°44’45’’S 50°19’25’’E, 0-10 m, 3.X.1996, fl., Bernard 361 ( G, MO, P) ; vallée inférieure de l’Androranga , affluent de la Bemarivo (NE) aux env. d’Antongondriha , 100-250 m, 1-24.XI.1950, fl., Humbert & Capuron 23979 ( P) ; Between Mandena and the Reserve Integral de Marojejy , 14°27’S 49°17’E, 100- 200 m, 30.IX.1988, fl., J. Miller et al. 3311 ( MO [2 sheets], P) ; Sambava , au N d’Antalaha , XI.1912, fr., Perrier de la Bâthie 6699 ( P) ; Andravinambo, forêt de Tsihomanaomby , 14°06’S 50°01’E, 225 m, 3.II.2014, fl., Rakotonirina et al. 446 ( MO) ; Sambava, forêt d’Ambodivohitra , 14°24’42’’S 49°51’49’’E, 148 m, 20.X.2010, fl., Ravelonarivo & Raharivelo 3541 ( MO, P) ; vallée de l’Ampalohandrano , affluent de l’Anohoranga , aux env. d’Antongondriha , 150 m, 9.XI.1950, fl., Service Forestier 794 ( P) ; Antsambalahy , Vohémar , 2.XII.1955, fl., Service Forestier 15228 ( P) ; env. S d’Analamanara (près de Tsaratanana) , entre Sambava et Antsirabe-Nord , 2-7.XII.1966, fl., Service Forestier 27184 ( P) ; massif du Bezavona , entre la Fanambana et la Manambery , basse vallée de l’Andilana , 13.XII.1966, fl., Service Forestier 27226 ( P) . Prov. Fianarantsoa: route Farafangana-Vangaindrano , XII.1963, fl., Bosser 18580 ( P) ; Province de Mananjary, zone côtiere , III-IV.1909, fl., Geay 7855 ( P) ; Manombo RS , parcelle n° 2 , 23°02’31’’S 47°46’24’’E, 20 m, 18.VIII.1995, fl., Rakotomalaza et al. 410 ( MO, P) ; Fkt. Marohita , forêt d’Alimamba , 21°28’04’’S 48°17’43’’E, 13 m, X.2004, fl., Razakamalala et al. 1646 ( G, MO, P) ; Mananjary , Rindrimbolo , 23.XII.1954, fl., Service Forestier 14404 ( MO) ; Analamarina , Fort-Carnot , 15.X.1955, fl., Service Forestier 15282 ( P) ; Evato , village le plus proche Loharano , forêt d’Analavory , 10.XI.1955, fl. & fr., Service Forestier 16259 ( P) . Prov. Toamasina: Fkt. Ambanizana, between Andranobe & Tampolo , 15°42’12’’S 49°57’38’’E, 1 m, 27.X.2004, fl. & fr., Antilahimena 2993 ( G, K, MO, P) ; 0-2 km E of Andavakimenarana ( location of ferry to cross Pangalanes ), 18°52’34’’S 49°08’12’’E, 1-10 m, 14-16. II.1999, fl., Birkinshaw et al. 559 ( MO, P) ; Ile Ste. Marie, X.1849, Boivin 1847 ( P [3 sheets]) ; Maroantsetra , IX.1923, fr., Louvel 68 ( P) ; Masoala peninsula, Antalavia, coastal path leading S , 15°46’S 50°01’E, 25 m, 17.IV.1987, fl., Nicoll et al. 553 ( MO, P) ; Pointe à Larrée, forêt Menagisy , 16°46’39’’S 49°41’32’’E, XI.2008, fl., Nikolov 1815 ( MO) ; bassin inférieur du Mangoro , X.1922, fl., Perrier de la Bâthie 18262 ( P) ; entre Bedinta et Andranobe , 15°39’30’’S 49°57’30’’E, 350-500 m, 24-26.XI.2001, fr., Rabevohitra 4006 ( P) ; Tampolo forestry station , 17°17’S 49°23’E, 10 m, 11.X.1999, fl., A. Randrianasolo et al. 603 ( G, K, MO, P) ; Ambila-Lemaitso, W of Brickaville-Ambila road , 18°49’S 49°08’E, 0-5 m, 11.XI.1999, fl., A. Randrianasolo & Ranivojaona 649 ( G, K, MO, P) ; trail to Andranokoditra from Ambodivonanto , 18°33’39’’S 49°14’33’’E, 27 m, 28.X.2002, fr., A. Randrianasolo et al. 746 ( G, MO, P) ; Fkt. Ambalavontaka , forêt d’Antaimby , 20°22’21’’S 48°33’15’’E, 13 m, 27.IX.2004, fl., Razakamalala et al. 1518 ( G, MO, P [3 sheets]) ; RN II [Masoala], cton Ambohitralana [na], 21.I.1953, fr., Réserves Naturelles 4932 ( P) ; [ Ile Ste. Marie ], s.d., fl., Richard 260 ( P) ; Masoala Peninsula, N of Antalavia , 15°47’S 50°02’E, 200-380 m, 13-16.XI.1989, fl. & fr., Schatz et al. 2780 ( MO, P) ; poste forestier de Mananara-Nord , 4.XII.1953, fl., Service Forestier 8090 ( P) ; Tenina , au S de Rantabe , I.1954, fl. & fr., Service Forestier 8916 ( P) ; Tampina , s.d., fr., Ursch s.n. ( P) . Prov.Toliara: massif de l’Andohahel[a] (SE) , vallée de Ranohela , 300-1200 m, 18-26.X.1928, fl. & fr., Humbert 6244 ( P [2 sheets]) ; Sainte Luce, forêt de Beboaka , 24°40’25’’S 47°12’00’’E, 13 m, 25.XI.2011, fl., Miandrimanana 535 ( MO) ; Ivorona , forêt de Mamoareny , 24°49’S 46°56’E, 706 m, 30.XI.2009, Razakamalala et al. 5021 ( MO) ; Fort Dauphin, VI.1889, fl., Scott Elliot 2824 ( P) .