Abrahamia minutifolia 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 : 101-103

publication ID

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



persistent identifier


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scientific name

Abrahamia minutifolia Randrian. & Lowry

sp. nov.

22. Abrahamia minutifolia Randrian. & Lowry View in CoL , spec. nova ( Fig. 20-21 View Fig View Fig ).

Protorhus ditimena var. minutifolia H. Perrier View in CoL in Mém. Mus. Natl. Hist. Nat. 18: 261. 1944 [nom. inval.].

Typus: MADAGASCAR. Prov.Toamasina:Rég. Alaotra-Mangoro , Moramanga , Analamazaotra RS, “carrière de sable ”, [18°56’S 48°26’E], 900-950 m, 29.X.1996, fl., A. Randrianasolo 516 (holo-: MO- 04895273 !; GoogleMaps iso-: G!, K!, P [ P06169142 ]!, TAN [ TAN002000 View Materials ]!) GoogleMaps



Abrahamia minutifolia Randrian. & Lowry can be distinguished by having leaves that are smaller (1-3 3 0.9-1.8 cm) than any other member of the genus and fruits that are among the smallest (1-1.5 3 0.5-0.8 cm).


Trees 3.5-12 m tall, 11.9-40 cm DBH, bark with translucid latex; young twigs waxy, lenticellate, with short, red, appressed indument at the tip. Leaves subopposite; blades, obovate, 1.8-4 3 0.9-1.8 cm, subcoriaceous to coriaceous, apex emarginate, retuse, or rounded, margin entire, base acute, adaxial surface glabrous, abaxial surface with very sparse appressed reddish indument when young, glabrescent, venation craspedodromous, midvein prominent below, secondary veins 15-20 pairs, 0.5-2 mm apart, prominent on both surfaces, tertiary veins raised on both surfaces; petiole 3-8 mm long, canaliculate on adaxial surface, reddish pubescent when young, later glabrescent. Inflorescence axillary or terminal, a thyrse, 1-3 cm long, axes somehow flattened, with ferruginous indument. Male and female flowers 4- or 5-merous; pedicel 0.2-0.3 mm long, pubescent; calyx lobes deltate, 1 3 1 mm, imbricate, glabrous, persistent on fruit; corolla lobes ovate, 2-2.2 3 1-1.5 mm, imbricate, adaxial surface glabrous, abaxial surface pubescent; stamens 4 or 5. Male flowers with filaments 1-1.5 mm long, glabrous, white, anthers c. 0.8 mm long, obloid to slightly ovoid, yellow, glabrous; disk cupuliform, c. 1 mm in diam., glabrous; ovary rudimentary. Female flowers with filaments 0.3-0.5 mm long, glabrous to slightly pubescent, white, anthers c. 0.5 mm long, subglobose to ovoid, sterile, yellow, glabrous; disk c. 1.5 mm in diam., glabrous; ovary widely to very widely ovoid, c. 1.5 3 1 mm, pubescent, placentation subapical; style shortly trifid, subapically to apically inserted, 0.5 mm long, partly pubescent, stigmas capitate. Fruits 1-1.5 3 0.5-0.8 cm, ellipsoid, slightly asymmetrical, surface velutinous, with longitudinal striations.

Distribution, ecology and phenology

Abrahamia minutifolia has been collected primarily in premontane forest along Madagas-car’s eastern escarpment at an elevation of c. 900 m and in central high elevation forest at c. 1500 m, but it also occurs in humid forests in both the eastern and northwestern parts of the island ( Map 7 View Map 7 ). It flowers between September and November, and fruits have been collected from November to April.

Conservation status

With an EOO of 117,262 km 2, a minimum AOO of 84 km 2, and 21 known localities, with subpopulations in at least 5 protected areas (Ambohitantely, Kalabenono, Maso-ala, Manongarivo, and Analamazaotra-Perinet), A. minutifolia is assigned a preliminary conservation status of “Least Concern” [LC] using the IUCN Red List Categories and Criteria ( IUCN, 2012).


Abrahamia minutifolia is part of a group of species, along with A. delphinensis , A. diti-mena , A. itremoensis , A. lenticellata and A. sericea , that has velutinous fruits, but is distinguished by its thyrsiform (vs paniculate) inflorescence and smaller fruits (1-1.5 3 0.5-0.8 vs 2-3-2.5 3 1.2-1.4 cm in A. delphinensis , 2-3 3 1.4-1.6 cm in A. ditimena , 1.5-2.3 3 1.2-1.5 cm in A. itremoensis , 2-2.6 3 1.3-1.5 cm in A. lenticellata and 2-3 3 0.8-1.3 cm in A. sericea ).

The name Protorhus ditimena var. minutifolia , published by PERRIER DE LA BâTHIE (1944) on the basis of a fragmentary specimen (Louvel 21), is invalid because it lacked a Latin diagnosis, as required for all names published between 1 January 1935 and 31 December 2011 under Article 39.1 of the International Code of Nomenclature ( MCNEILL et al., 2012). We have chosen to retain Perrier de la Bâthie’s epithet, which aptly characterizes this taxon, by formally describing it as a new species.


MADAGASCAR. Prov. Antananarivo: Ankazobe , Ambohitantely RS, 18°11’S 47°17’E, 1620 m, 14.I.1997, fl., Randrianaivo et al. 53 ( G, K, MO, NY, P, TAN, WAG); GoogleMaps forest E of Anjozorobe, E Antsahabe village , [18°22’S 47°47’E], 1400 m, 22.X.1996, fl., A. Randrianasolo 508 ( MO, P, TAN); GoogleMaps Ambohitantely RS, 18°10’42’’S 47°17’00’’E, 1530 m GoogleMaps , 23-24.XI.1993, fl., Schatz et al. 3565 ( G, K, MO, P, TAN); GoogleMaps ibid. loco, [18°09’S 47°14’E], V.1953, fr., Service Forestier 7361 ( P, TEF); GoogleMaps ibid. loco, [18°08’S 47°16’E], 1600 m, IV.1953, fr., Service Forestier 8417 ( P, TEF); GoogleMaps ibid. loco, 26.VII.1954, ster., Service Forestier 11-R-282 ( P, TEF); GoogleMaps Poste forestier Manankazo, Ankazobe , [18°09’S 47°14’E], 22.VI.1955, fr., Service Forestier 16814 ( P, TEF). GoogleMaps Prov. Antsiranana: Ambanja, Bekolosy , 14°02’S 48°18’E, 1200 m, 28.III.1996, fr., Gautier & Be 2909 ( G, MO, P, TAN, TEF); GoogleMaps ibid. loco, 14°02’S 48°18’E, 1070 m, 23.IX.1996, fl., Gautier et al. 3123 ( G, MO, P, TAN, TEF); GoogleMaps Ambilobe , forêt de Kalabenono, 13°38’45’’S 48°40’45’’E, 934 m, 27.XI.2006, fr., Callmander et al. 631 ( G, MO); View Materials GoogleMaps Andapa, Doany, forêt d’Andramanalana , 14°23’02’’S 49°21’36’’E, 1280 m, IV.2006, fr., Rakotovao et al. 3074 ( G, MO, P, TAN); GoogleMaps Andramilolo , SE Anjanaha-ribe, 14°19’43’’S 49°18’08’’E, 1412 m, 12.XI.2006, fl., Razakamalala et al. 2939 ( G, MO, P, TAN). GoogleMaps Prov. Fianarantsoa: Tolongoina, Andrambavato , 2 km S Tatamaly, 21°30’S 47°24’E, 1075 m, 13.X.2000, fl., Randriatafika 142 ( G, K, MO, P, TAN). GoogleMaps Prov. Toamasina: Alaotra-Mangoro, Ambatovy , Analamay , 18°48’28’’S 48°20’10’’E, 1083 m, 2.XII.2005, fl., Antilahimena et al. 4316 ( G, MO, P, TAN); GoogleMaps ibid. loco, fl., Anti-lahimena et al. 4318 ( G, MO, P, TAN); GoogleMaps Moramanga, Ambatovy / Andranovery forest , 18°52’09’’S 48°18’15’’E, 1013 m, 26.X.2007, fl., Antilahimena 5937 ( G, MO, P, TAN); GoogleMaps Analamazaotra , IX.1925, bud, Louvel 21 ( P); GoogleMaps Maroantsetra, Masoala PN, E slope of Ambohitsitondroinan’Mahalevona summit, 15°25’34’’S 49°57’22’’E, 1160 m, 25.II.2003, fr., Lowry et al. 6190 ( G, K, MO, P, TAN, WAG); GoogleMaps along road to Lakato , 18 km S of RN2, 19°04’06’’S 48°22’01’’E, 1050 m, 17.X.2004, fl., Lowry et al. 6547 ( G, MO, P, TAN); GoogleMaps Ambatovy, Analamay , 18°49’26’’S 48°20’16’’E, 1000 m, 26.I.1997, fr., Rakotomalaza et al. 1005 ( MO, P, TAN); GoogleMaps Analamazaotra, 950 m, 29.X.1996, fl., A. Randrianasolo 515 ( G, MO, P, TAN); GoogleMaps Mantadia PN, c. 11 km N of village of Andasibe, 18°49’47’’S 48°25’56’’E, 939 m, 10.I.2003, ster., A. Randrianasolo 781 ( MO, P, TEF); GoogleMaps Ambatovy, 18°49’28’’S 48°19’23’’E, 1134 m, 26.XI.2005, bud, Razafindraibe 135 ( MO, P, TAN); GoogleMaps Analamazaotra-Périnet, [18°56’S 48°26’E], 6.XI.1957, bud, Service Forestier 18400 ( G, K, MO, NY, P [2 sheets]); GoogleMaps Ankazomanitra, PK 45, route Anosi-be-Moramanga, [19°58’S 48°08’E], 6.XI.1968, bud, Service Forestier 26800 ( G, MO, NY, P, TEF); GoogleMaps W d’Antanandava (PK 45 Moramanga-Anosibe ), [19°08’S 48°15’E], XI.1968, fl., Service Forestier 28453 ( G, MO, P, TEF); GoogleMaps ibid. loco, XI.1968, bud & fl., Service Forestier 28454 ( G, MO, NY, P, TEF). GoogleMaps






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William and Lynda Steere Herbarium of the New York Botanical Garden


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Abrahamia minutifolia Randrian. & Lowry

Randrianasolo, Armand, Lowry II, Porter P. & Schatz, George E. 2017

Protorhus ditimena var. minutifolia

H. Perrier 1944: 261
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