Abrahamia lecomtei (H. Perrier) Randrian. & Lowry

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 : 84-85

publication ID

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

DOI

https://doi.org/10.5281/zenodo.7618412

persistent identifier

https://treatment.plazi.org/id/038887C6-FF9E-FF80-FE43-83651AE30C4B

treatment provided by

Carolina

scientific name

Abrahamia lecomtei (H. Perrier) Randrian. & Lowry
status

 

16. Abrahamia lecomtei (H. Perrier) Randrian. & Lowry View in CoL , comb. nova ( Fig. 13 View Fig ).

Protorhus lecomtei H. Perrier View in CoL in Mém. Mus. Natl. Hist. Nat. 18: 262. 1944.

Lectotypus (designated here): MADAGASCAR. Prov. Toamasina: Rég. Atsinanana, Vatomandry , bois littoraux en arrière des lagunes, fl., IX.1921, Perrier de la Bâthie 14301 ( P [ P00722658 ]!; isolecto-: MO- 6684135 !, P [ P00722659 ]!) .

Description

Trees 5-15 m tall, 5-20 cm DBH, bark with white latex; young twigs glabrous, waxy, with lenticels, white or pale brown, spongy, sometimes the very tip with sericeous red brown indument. Leaves alternate, closely spaced, more so toward the branch ends; blades, oblanceolate, rarely widely elliptic, 5.3-17.5 3 1.5-5 cm, subcoriaceous, apex shortly acuminate, acuminate or rarely rounded, margin entire, base acute or cuneate to obtuse, adaxial surface glabrous, abaxial surface sericeous on midvein, sometimes sparsely so, venation semicraspedodromous, midvein prominent abaxially, secondary veins 20-30 pairs, more or less parallel, 2-8 mm apart, rather prominent abaxially, tertiary veins often obscure on adaxial surface, fairly visible on abaxial surface; petiole 5-8-(10) mm long, shallowly canaliculate on adaxial surface, red-brown pubescent when young, glabrescent. Inflorescence axillary, a panicle, 1-5 cm long, axes regular, red-brown pubescent; bracts triangular, 1-2 3 0.5-1 mm, abaxial surface red-brown pubescent outside. Male and female flowers 5-(or 6)-merous; pedicel c. 0.3-0.5 mm long, red-brown pubescent; calyx lobes ovate to deltate, 1-1.2 3 0.8-1.5 mm, imbricate (valvate in female flowers), adaxial surface glabrous, abaxial surface glabrescent or with red brown indument; corolla lobes ovate or oblong, 2-3 3 1-1.5 mm, imbricate, adaxial surface glabrous, abaxial surface glabrous or with sparse reddish indument, yellow green; stamens 5. Male flowers with filaments 0.5-0.7 mm long, glabrous, anthers 0.5-0.6 mm long, obloid to slightly ovoid, white, glabrous; disk cupuliform, c. 1 mm in diam., glabrous; ovary completely absent. Female flowers with filaments c. 0.8 mm long, glabrous, anthers c. 0.5 mm long, ovoid to obloid, sterile, yellow, glabrous and pubescent; disk c. 1-1.5 mm in diam., glabrous; ovary very widely ovoid, c. 1 3 1 mm, glabrous, placentation subapical (nearly apical); style simple, subapically to apically inserted, 1 mm long, glabrous, stigmas capitate. Fruits c. 1.7 3 1 cm, ellipsoid, symmetrical, glabrous, with weakly visible longitudinal striations.

Vernacular names

“Ditimena’’, “Hazombarorana’’, “Tavolo malamatra’’, “Tsiramiramy mena’’.

Distribution, ecology and phenology

Abrahamia lecomtei occurs in eastern rainforest from coastal areas to elevations as high as 950 m ( Map 4 View Map 4 ). It has been recorded in flower between September and December, and fruits have been collected in December and January.

Conservation status

With an EOO of 7,413 km 2, a minimum AOO of 32 km 2 but an estimated AOO> 500 km 2, and 7 recorded localities, only some of which are in protected areas (Ambalabe, Betampona, and Zahamena), A. lecomtei is assigned a preliminary conservation status of “Vulnerable” [VU B1ab(iii)+2ab(iii)] using the IUCN Red List Categories and Criteria ( IUCN, 2012).

Notes

Abrahamia lecomtei can be distinguished from all other members of the genus by the presence of spongy, pale or white bark on the twigs and small branches, its leaves with semicraspedodromous venation and a short petiole (5-8 mm long), and its male flowers with short filaments (not exceeding 0.8 mm) and a disk that lacks a rudimentary ovary.

Perrier de la Bâthie 5283 (P) was cited in the protologue of Protorhus lecomtei and thus represents a syntype, but it is clearly referable to Abrahamia thouvenotii .

Additional material examined

MADAGASCAR. Prov. Toamasina: Zahamena PN, W d’Ampasimaventy, 17°44’42’’S 48°58’26’’E, 300-350 m, 9.VII.2003, fl., Andrianjafy 396 ( CNARP, MO, P); GoogleMaps Ambatondrazaka, Sahalampy , Onibe , [17°45’S 48°51’E], 700 m, XI.1938, bud, Cours 1171 ( P [2 sheets]); GoogleMaps RNI Betampona , 17°51’55’’S 49°12’15’’E, 275-650 m, 19-25.VIII.1990 GoogleMaps , ster., Carlson 364 ( MO, P, TAN); GoogleMaps Ambodimangavolo , 3 km W d’Ambatoharanana, 17°34’17’’S 48°53’49’’E, 950 m, 30.IV.2003, fl., Rakotondrajaona 266 ( CNARP, G, K, MO, P, TEF); GoogleMaps Vatomandry, Ambalabe , forêt de Vohibe, 19°09’07’’S 48°34’33’’E, 704 m, 20.I.2012, fr., Rakotoarivelo 608 ( G, K, MO, P, TAN); GoogleMaps ibid. loco, 19°09’42’’S 48°34’41’’E, 667 m, 20.XI.2013, y. fr., A. Randrianasolo 1456 ( G, K, MO, P, TAN); GoogleMaps Zahamena PN, Ihofika , 17°39’13’’S 48°57’50’’E, 550 m, 22.X.2002, fl., S. Randrianasolo 335 ( CNARP, MO, P); GoogleMaps Ambalabe, forêt de Vohibe, 19°09’32’’S 48°34’39’’E, 617 m, 16.X.2008, fl., Razanatsima 629 ( G, K, MO, P, TAN); GoogleMaps ibid. loco, 624 m, 1.XII.2008, y. fr. & fl., Razanatsima & Celestin 635 ( MO, P, TAN); GoogleMaps Betampona RNI, [17°55’S 49°13’E], 22.XII.1950, fl., Réserves Naturelles 2656 ( MO, P [2 sheets]); GoogleMaps Betampona RNI, Betavoana , [17°56’S 49°17’E], 12.XI.1957, fl., Réserves Naturelles 9156 ( P, TEF). GoogleMaps Sine loco: 19.XII.1938, y. fr., Lam & Meeuse 6022 ( P) GoogleMaps .

CNARP

CNARP

TEF

TEF

P

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

MO

Missouri Botanical Garden

TAN

Parc de Tsimbazaza

G

Conservatoire et Jardin botaniques de la Ville de Genève

K

Royal Botanic Gardens

TEF

Centre National de la Recherche Appliquée au Developement Rural

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Sapindales

Family

Anacardiaceae

Genus

Abrahamia

Loc

Abrahamia lecomtei (H. Perrier) Randrian. & Lowry

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

Protorhus lecomtei

H. Perrier 1944: 262
1944
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