Abrahamia patrickii Randrian. &amp; Lowry 2017, spec. nova
Creators: name: Randrianasolo, Armand
name: Lowry II, Porter P.
name: Schatz, George E.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Anacardiaceae
Abrahamia
Abrahamia patrickii

description: 25. <i>Abrahamia patrickii</i> Randrian. &amp; Lowry, spec. nova (Fig. 22). Typus: MADAGASCAR. Prov. Antsiranana: Rég. SAVA, Vohémar, commune rurale de Daraina, forêt de Bobankora, partie N, 510 m, 13°13’15’’S 49°45’42’’E, 510 m, 29.I.2005, fr., <i>Ranirison &amp; Nusbaumer 919</i> (holo-: G [G00019652]!; iso-: MO- 6671434!, P [P00580356]!, TEF [TEF000886]!). <b>Diagnosis</b> <i>Abrahamia patrickii Randrian. &amp; Lowry can easily be distinguished from other members of the genus by its sub-verticillate to subopposite leaves, narrowly oblanceolate leaf blade with very closely spaced secondary veins, and the presence of circular orange-brown scales on the abaxial leaf surface.</i> <b>Description</b> <i>Trees</i> 13.5 m tall, 20 cm in diam.; young twigs lenticellate. <i>Leaves</i> sub-verticillate or subopposite; blade oblanceolate, 3-5.5 <b>3</b> 1-1.5 cm, subcoriaceous, apex emarginate or round, margin undulate, base cuneate to acute, adaxial surface glabrous, abaxial surface mostly glabrous but with scattered short reddish indument along midvein and margin, as well as circular, orange-brown scales, venation craspedodromous, midvein prominent abaxially, secondary veins 24-28 pairs, 1-3 mm apart, very often closely spaced, raised on both surfaces, tertiary veins not visible on either surface; petiole 6-13 mm long, c. 0.8-1 mm in diam., glabrous, canaliculate on adaxial surface. <i>Inflorescence</i> and <i>flowers</i> unknown. <i>Fruits</i> 2.3-2.6 <b>3</b> 1.1-1.3 cm, slightly asymmetric, ellipsoid, glabrous, with longitudinal striations. <b>Etymology</b> The species epithet honors Patrick Ranirison for his dedication to the study of the Malagasy flora, most notably his work in the Daraina region of northeastern Madagascar. <b>Distribution, ecology and phenology</b> <i>Abrahamia patrickii</i> is known only from the type collection from the Daraina area and a second gathering made N of Sambava (Map 6), in semi-deciduous and evergreen humid forest. It has been collected with fruits in January and February. <b>Conservation status</b> With a minimum AOO of 8 km 2 and 2 localities, both of which situated are within protected areas (Loky Manambato and Makirovona), <i>A. patrickii</i> is assigned a preliminary conservation status of “Least Concern’’ [LC] using the IUCN Red List Categories and Criteria (IUCN, 2012). <b>Notes</b> <i>Abrahamia patrickii</i> closely resembles <i>A. nitida</i> by its sub-verticillate leaves with an oblanceolate blade, similar number of craspedodromous secondary veins (24-28 in <i>A. patrickii</i> and 20-30 in <i>A. nitida</i>), similar petiole length (6-13 mm in <i>A. patrickii</i> and 5-15 mm in <i>A. nitida</i>), and glabrous fruit. However, the leaves of <i>A. patrickii</i> differ from those of <i>A. nitida</i> by their undulate (vs revolute) margins, orange-brown circular scales (vs glabrous) on the abaxial surface, narrowly spaced secondary veins (1-3 vs 3 mm apart), obscure (vs visible and raised) tertiary veins, and fruit with longitudinal striations (vs smooth) on the surface. <b>Paratypus</b> MADAGASCAR. Prov. Antsiranana: Rég. SAVA, Sambava, forêt d’Antsahaha Kasaka, 2 km NW du village Ambavala, 14°05’39’’S 50°02’42’’E, 146 m, 16.II.2006, fr., <i>Andrianjafy et al. 1590</i> (MO, TAN, P).
description: Published as part of <i>Randrianasolo, Armand, Lowry II, Porter P. &amp; Schatz, George E., 2017, Taxonomic treatment of Abrahamia Randrian. &amp; Lowry, a new genus of Anacardiaceae from Madagascar, pp. 1-152 in Boissiera 71</i> on pages 109-110, DOI: 10.5281/zenodo.7618113
description: {"references": ["IUCN (2012). IUCN Red List Categories and Criteria: Version 3.1 ed. 2. IUCN Species Survival Commission, Gland &amp; Cambridge."]}