Micronychia tsiramiramy var. tsiramiramy

Randrianasolo, Armand, 2000, A taxonomic revision of the Malagasy endemic genus Micronychia (Anacardiaceae), Adansonia (3) 22 (1), pp. 145-155 : 152-153

— var. tsiramiramy

Trees 8-20 m tall. Leaves 3-11.5 cm long, 1.8- 5.3 cm wide, secondary veins arcuate; petiole 3- 15 mm long, canaliculate. Inflorescences axillary, subterminal or terminal, 1.5-9 cm long; bracts 1- 2 mm long, 1 mm wide, abaxially setulose. Flowers with pedicel 0-0.2 mm long, pubescent; calyx lobes widely depressed ovate, 1.5-2.5 mm long, 1.8-2mm wide, caducous; corolla lobes ovate or obovate, 3-5 mm long, 2-3 mm wide; staminate flowers with filaments 1.5-2 mm long; anthers 1-2 mm long; disk shallowly cup-shaped, 1-1.5 mm in diam.; pistillate flowers with filaments 1.2-1.5 mm long; anthers 1 mm long; disk annular and cup-shaped, ca. 1.5 mm long in diam.; 1-2 mm long, 1 mm broad; the single style trifid, lateral, 1-1.5 mm long. Fruits 1.2-1.4 cm long, ca. 1.5 cm broad, widely depressed ovate.

HABITAT, DISTRIBUTION AND PHENOLOGY. — Micronychia tsiramiramy var. tsiramiramy occurs from eastern coastal forests to premontane wet forests along the Eastern escarpment, at an alti-

tude of about 900 m ( Fig. 4 ). It has been collect- ed in flower in June-October and in fruit in December-January.

VERNACULAR NAMES. — Tsiramiramy, ditimena, ditimenalahy, ditimena tsiramiramy.

ADDITIONAL MATERIAL EXAMINED. — MADA- GASCAR: Louvel 49, Toamasina Prov., forêt d’Analamazaotra , 18°56’S, 48°26’E, fl. (P); Louvel 178, forêts montagneuses de l’Est, fl. (P); Perrier de la Bâthie 5274, Toamasina Prov., forêt d’Analamazaotra, 900 m, forêt des cimes, fr. (P); Perrier de la Bâthie 6400, Toamasina Prov., forêt d’Analamazaotra, 800 m, futaie des cimes, fr. (P); Randrianasolo 408, Toamasina Prov., station forestière d’Analamazaotra, 18°57’20’S, 48°24’30’E, 950 m, 16 July 1996, (MO, P, TAN) ; SF n° 0 ( Capuron ), without precise locality, fl. (P); SF 2625, Toamasina Prov., Menalamba Périnet, 18°52’S, 48°22’30’E, 25 June 1950 , fl. (P); SF 7590, Bekiritsika Lakato , 19°11’30’S, 48°26’E, 8 oct. 1953 , fl. (P); SF 8797 (Capuron), Toamasina Prov., Maroantsetra: forêt orientale, crête au NW du col d’Ambatondradama (entre les bassins de la Sahafihitra et de la Mahalevona), vers 700 m, 25 Nov. 1953 , fr. (P); SF 14972, Toamasina Prov., Moramanga: Antaniditra Perinet , 18°51’25’S, 48°22’40’E, 900 m, 6 July 1955 , fl. (P); SF 18041 (Capuron), Toamasina Prov., forêt d’Analamazaotra, Périnet , 18°56’S, 48°26’E, 29 July 1957 , fl., fr. (P-2 sheets); SF 18050 ( Capuron ), Toamasina Prov., centre est: forêt d’Analamazaotra Périnet, 18°56’S, 48°26’E, 29- 30 July 1957 , fl. (P); SF 18725 (Capuron), Toamasina Prov., Ambatondrazaka: Centre Est: vallée de la Voromahery, à l’Est de Nosivolo , canton de Manakambahiny-Est, limite ouest de la RNI n° 3 Zahamena, 27 Aug. 1958 , fl. (P-2 sheets); SF 26603, Toamasina Prov., Toby, PK 27, route d’Anosibe, 12 Sep. 1967 , fl. (MO, P); SF 26929, Toamasina Prov., Nangaranana Marovoay, Feb. 1970 (P).

Figures

Fig. 4. — Geographic distribution of Micronychia tsiramiramy var. tsiramiramy and var. minutiflora.