Abrahamia elongata Randrian. & Lowry, 2017

Randrianasolo, Armand, Lowry II, Porter P. & Schatz, George E., 2017, Taxonomic treatment of Abrahamia Randrian. & Lowry, a new genus of Anacardiaceae from Madagascar, Boissiera 71, pp. 1-152 : 62-63

publication ID

https://doi.org/ 10.5281/zenodo.7618113



persistent identifier


treatment provided by


scientific name

Abrahamia elongata Randrian. & Lowry

sp. nov.

10. Abrahamia elongata Randrian. & Lowry View in CoL View at ENA , spec. nova ( Fig. 9 View Fig , 10A).

Typus: MADAGASCAR. Prov. Toamasina: Rég. Analanjirofo, Maroantsetra, Nosy Mangabe , 15°30’S 49°46’E, 0-330 m, 28.IX-5.X.1989, fl., Schatz 2770 (holo-: MO- 3759750 !; GoogleMaps iso-: K, P [ P06169108 ]!, TAN [ TAN001988 View Materials ]!, WAG [ WAG1435428 View Materials ] image seen). GoogleMaps


Abrahamia elongata Randrian. & Lowry can be distinguished from its congeners by its oblanceolate or narrowly elliptic leaves that are 8.5-26.5 3 2.5-6.5 cm, combined with very pronounced secondary and tertiary veins, long petiole (1.5-3 cm), and a relatively large and glabrous fruits (2-4 3 1-1.5 cm).


Trees 4-25 m tall, 10-15 cm DBH, bark with white milky latex; young twigs waxy or lanate to pubescent at the tips. Leaves alternate; blades oblanceolate to narrowly elliptic, 8.5-26.5 3 2.5-6.5 cm, coriaceous, apex emarginate, rounded, shortly acuminate or sometimes acuminate, margin entire, base acute to cuneate, adaxial surface glabrous or with short appressed indument, abaxial surface sericeous to glabrescent, venation craspe-dodromous, midvein prominent abaxially, secondary veins 25-50 pairs, more or less par-allel, 1.5-10 mm apart, very prominent abaxially, tertiary veins raised on both surfaces; petiole 15-30 mm long, canaliculate on adaxial surface, with short, appressed indument when young, later glabrescent or glabrous. Inflorescence axillary, a panicle, 1.5-6 cm long, the branches regular, pubescent or tomentose. Male and female flowers 5-merous; pedicel 0.1-0.3 mm long, pubescent; calyx lobes shallowly deltate to shallowly triangular, c. 1 3 1.2-1.5 mm, adaxial surface glabrous, abaxial surface pubescent, slightly imbricate in male flowers, valvate in female flowers, persistent in fruit; corolla lobes ovate, 2.5-3 3 1.5 mm, imbricate, adaxial surface glabrous, abaxial surface pubescent, white or pale yellow; stamens 5. Male flowers with filaments 1.5-2 mm long, glabrous, white, anthers 1 mm long, obloid to slightly ovoid, yellow, glabrous; disk c. 1 mm in diam., glabrous; ovary rudimentary. Female flowers with filaments c. 1 mm long, glabrous, white, anthers 0.3-0.5 mm long, ovoid, sterile, yellow, glabrous; disk annular, cupuliform, c. 1.5-2 mm in diam., glabrous; ovary very widely ovoid or obovoid, slightly asymmetrical, 1.5-2 3 1.5-1.8 mm, glabrous, placentation subapical; style unbranched, latero-subapically inserted, c. 1 mm long, stigmas capitate, glabrous. Fruits 2-4 3 1-1.5 cm, ellipsoid or slightly asymmetrical, glabrous, with longitudinal striations.

Vernacular names

“Ditimena’’, “Hazombarorana’’, “Tarantana’’.

Distribution, ecology and phenology

Abrahamia elongata occurs from eastern coastal littoral forest on sand to premontane forests on laterite up to elevations of 900 m, and extends from Marojejy and near Ambi-lobe in the north to Manombo in the south ( Map 2 View Map 2 ). It flowers between September and November, and fruits in November and December.

Conservation status

With an EOO of 147,171 km 2, an AOO of 120 km 2, and 32 recorded localities, many of which occur within protected areas (Ambalabe, Anjanaharibe-Sud, Betampona, Manombo, Marojejy, Masoala, Nosy Mangabe, and Zahamena), A. elongata is assigned a preliminary conservation assessment of “Least Concern’’ [LC] using the IUCN Red List Categories and Criteria ( IUCN, 2012).


Abrahamia elongata most closely resembles A. latifolia , with which it shares large leaves with many secondary veins and exclusively axillary inflorescences. However, A. elon-gata differs by its coriaceous (vs subcoriaceous) leaves with craspedodromous (vs semi-craspedodromous) venation, and its longer petiole (15-30 vs 10 mm). It also resembles A. sambiranensis vegetatively, but differs by having leaves with evident, raised tertiary veins on both surfaces (vs lacking in A. sambiranensis ) and whose apex is flat in pressed material (vs folded), and by its fruits that are glabrous (vs pubescent when young and glabrescent at maturity in A. sambiranensis ).


MADAGASCAR. Prov. Antsiranana: Sambava , forêt de Tsihomanaomby, 14°06’08’’S 50°02’50’’E, 103 m, 15.II.2006, ster., Andrianjafy 1582 ( MO, P, TAN); GoogleMaps Marojejy PN, campement 1, 14°26’13’’S 49°46’32’’E, 460 m, 12.X.1996, y. fr., Rakotomalaza et al. 752 ( MO, P, TAN); GoogleMaps Andapa, Anjanaharibe-Sud RS, [14°36’S 49°27’E], 3-7. XII.1996, fr., Ravelonarivo et al. 1052 ( MO, P, TAN); GoogleMaps Antalaha, forêt Ampohafana, [14°48’30’’S 49°51’30’’E], 9.IX.1955, fl., Service Forestier 15064 ( P [2 sheets], TEF); GoogleMaps Andapa, Andilandrano , [14°45’S 49°34’E], 12.XII.1964, fr., Service Forestier 25019 ( G, MO, NY, P, TEF); GoogleMaps S de Sambava , [14°18’S 50°11’E] GoogleMaps , 30.XI-1.XII.1966, fr., Service Forestier 27110 ( P, TEF); Vohémar, Fanambana , 22.XII.1954, ster., Service Forestier 54-R-151 ( P). GoogleMaps Prov. Fianarantsoa: forêt de Manombo, S de Farafangana , [23°02’10’’S 47°44’50’’E], 17.X.1964, fl., Service Forestier 23654 ( P, TEF); GoogleMaps forêt entre Manakara et Vohipeno (PK 30), [22°22’S 47°51’E], 21.X.1964, y. fr., Service Forestier 23696 ( P, TEF). GoogleMaps Prov. Toamasina: Manompana , forêt d’AntanambaoAmbodimanga, 16°45’38’’S 49°42’22’’E, 7 m, 5.X.2003, fr., Andrianarivelo 30 ( G, MO, P, TEF); GoogleMaps Maroantsetra, Ambatoledama forest , 15°17’S 50°00’E, VI.2003, y. fr., Antilahimena 1996 ( G, K, MO, NY, P, TAN); GoogleMaps Rantabe, Behovana , 15°47’48’’S 49°32’10’’E, 815 m, 31.X.2003, fr., Antilahimena 2251 ( G, K, MO, P, TAN); GoogleMaps Antsirabe, Sahatany , Anjiakely , 15°24’19’’S 49°30’28’’E, 360 m, 27.VI.2004, fr., Antilahimena 2579 ( G, K, MO, P, TAN); GoogleMaps Nosy Mangabe, 15°29’S 49°45’E, 10 m, 18-26. IV.1990, ster., Carlson 126 ( MO); GoogleMaps ibid. loco, Carlson 150 ( MO); GoogleMaps ibid. loco, Carlson 188 (MO); GoogleMaps Sahalampy (Onibe), [17°50’S 48°25’E], 700 m, XI.1938, fl., Cours 1160 ( MO, P); GoogleMaps Mananara , 1.IX.1920, fl., Decary 59 ( P, TAN); GoogleMaps Soanierana-Ivongo , forêt d’Antanambao-Ambodimanga, 16°45’40’’S 49°42’35’’E, s.d., fr., Rabehivohitra 4354 ( MO, P, TAN, TEF); GoogleMaps Sainte Marie, forêt d’Ambohidena, 16°51’11’’S 49°57’10’’E, 10 m, 14.V.2003, ster., Rabenantoandro 1480 J ( MO); GoogleMaps Fénérive-Est , Tampolo station forestière, 17°17’S 49°23’E, 10 m, 11.X.1999, ster., A. Randrianasolo 596 ( MO); GoogleMaps Vatomandry, Ambalabe , Ambinanindrano II, 19°09’38’’S 48°35’02’’E, 600 m, 9.X.2005, fl., A. Randrianasolo et al. 1045 ( MO, NY, P, TAN); GoogleMaps ibid. loco, 19°09’01’’S 48°34’55’’E, 604 m, 6.X.2009, fl., A. Randrianasolo 1182 ( G, K, MO, NY, P, TAN); GoogleMaps ibid. loco, 19°09’39’’S 48°36’’E, 568 m, 7.X.2005, ster., Razanatsima et al. 38 ( MO, P, TAN); GoogleMaps Farankaraina , s.d., fl., Réserves Naturelles 65 ( P); GoogleMaps Zahamena NP, Imerimandroso , [17°30’S 48°38’E], 16.IX.1951, fl., Réserves Naturelles 3171 ( P, TAN); GoogleMaps Marojejy PN, [14°18’S 49°33’E], 15.IX.1956, fl., Réserves Naturelles 8265 ( G, MO, P); GoogleMaps Nosy Mangabe , 15°30’S 49°46’E, 0-330 m, 28.IX-5.X.1989, fl., Schatz 2757 ( MO, P, TAN); GoogleMaps Soanierana-Ivongo , [16°54’30’’S 49°35’00’’E], 27.XII.1949, y. fr., Service Forestier 2361 ( P, TAN, TEF); GoogleMaps Farankaraina station forestière, [15°25’S 49°52’E], 26.IX.1952, fl., Service Forestier 6154 ( G, MO, P [3 sheets], TEF); GoogleMaps Betampona RNI, près d’Ambodiriana , [17°55’S 49°13’E], 6.XI.1953, fl., Service Forestier 8600 ( MO, P, TEF); GoogleMaps massif de l’Ambohitsitondroina de Mahalevona (NW de la presqu’île Masoala ), [15°25’S 49°58’E], c. 500 m, 30.XI.1953, fr., Service Forestier 8678 ( G, MO, NY, P, TEF); GoogleMaps Brickaville, Sahamamy , Anivorano , [18°33’S 48°58’E], s.d., ster., Service Forestier 10884 ( P, TEF); GoogleMaps Farankaraina station forestière, [15°25’S 49°52’E], 11.X.1955, fl. & y. fr., Service Forestier 15361 ( MO, P [3 sheets], TEF); GoogleMaps PK 154 , quelques km S de Soanierana-Ivongo, [17°00’S 49°32’E], 2.IX.1957, fl., Service Forestier 18182 ( P [2 sheets], TEF); GoogleMaps Baie d’Antongil , NW de l’embouchure de la Rantabe, [15°40’30’’S 49°38’30’’E], 50-150 m, 12.IX.1957, fl., Service Forestier 18262 ( MO, TEF); GoogleMaps Farankaraina , [15°25’S 49°52’E], 28.IX.1963, fl., Service Forestier 21392 ( G, MO, P [2 sheets], TEF); GoogleMaps Tampolo , [17°17’00’’S 49°23’30’’E], 26.XI.1962, fr., Service Forestier 22121 ( G, K, MO, NY, P [3 sheets], TEF, WAG); GoogleMaps Tamatave, Tanambao-Tamboro , 17.XII.1954, ster., Service Forestier 9-R-195 ( P); GoogleMaps Lohan’i Sahatenany , N de Beanana, 2.II.1952, ster., Service Forestier 29-R-139 ( P); GoogleMaps Maroantsetra, Farankaraina , [15°25’S 49°52’E], 13.VIII.1952, ster., Service Forestier 44-R- 139 ( P); GoogleMaps ibid. loco, 27.XII.1952, ster., Service Forestier 127-R-199 ( P); GoogleMaps Tampolo, Fénérive Est, 13.I.1951, ster., Service Forestier 16-R-7 ( P, TEF); GoogleMaps ibid. loco, Service Forestier 323-R-107 ( P, TEF); GoogleMaps Masoala Peninsula , S of Ambanizana, 15°40’24’’S 49°57’51’’E, 110- 260 m, 25.X.1994, ster., Vasey et al. 55 ( MO, P, TAN). GoogleMaps






Royal Botanic Gardens


Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants


Parc de Tsimbazaza


Wageningen University


Missouri Botanical Garden


Centre National de la Recherche Appliquée au Developement Rural


Conservatoire et Jardin botaniques de la Ville de Genève


William and Lynda Steere Herbarium of the New York Botanical Garden


University of the Witwatersrand

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF