Malus trilobata (Labill. ex Poir.) C.K.Schneid.

Li, Jing-chao, Liu, Jian-quan & Gao, Xin-fen, 2022, A revision of the genus Malus Mill. (Rosaceae), European Journal of Taxonomy 853, pp. 1-127 : 81-83

24. Malus trilobata (Labill. ex Poir.) C.K.Schneid.

Figs 55–56

Repertorium Novarum Specierum Regni Vegetabilis 3: 179 ( Schneider 1906a).

Crataegus trilobata Labill. ex Poir., Encyclopedie Methodique Botanique Supplement 1: 291 ( Poiret 1810). – Crataegus trilobata Labill. ex Poir., Icones Plantarum Syriae Rariorum: Descriptionibus et Observationibus illustratae Vol. 4: 15 ( La Billardière 1812). – Pyrus trilobata (Labill. ex Poir.) DC. , Prodromus Systematis Naturalis Regni Vegetabilis Vol. 2: 636 ( de Candolle 1825). – Sorbus trilobata (Labill. ex Poir.) Heynh. , Nomenclator Botanicus Hortensis Vol. 1: 773 ( Heynhold 1840). – Eriolobus trilobata (Labill. ex Poir.) M.Roem., Familiarum Naturalium Regni Vegetabilis Synopses Monographicae 3, Rosiflorae: 216 ( Roemer 1847). – Cormus trilobata (Labill. ex Poir.) Decne. , Nouvelles Annales du Muséum d’Histoire naturelle, Paris, Ser. 1 10: 157 ( Decaisne 1874).

– Type: LEBANON • locality unknown; s.d.; La Billardière s.n.; isotype, P [ P02143277 , P02143278 ]!, FI [FI011067]!

Sorbus trilobata var. oxyloba Boiss. , Flora Orientalis Vol. 2: 657 ( Boissier 1872). – Eriolobus trilobata var. oxyloba (Boiss.) C.K.Schneid. , Illustriertes Handbuch der Laubholzkunde Vol. 1: 726, fig. 402ab ( Schneider 1906b), nom. nud.

– Type: SYRIA • Beilan; Monte Amano , on the slopes between the vineyards from Beilan to the Kara Tschausch mountain Houd Dagh; alt. 3000 ft; 22 Jun. 1862; fr.; T. Kotschy s.n.; lectotype: P [ P03776682 ]!, here designated.

Pyrus trilobata var. rumelica Dingler , Flora oder allgemeine botanische Zeitung 66: 303 ( Dingler 1883). – Sorbus trilobata var. rumelica Boiss. , Flora Orientalis. Supplementum: 199 ( Boissier 1888).

– Type: GREECE • Maronia; 5 May 1876; Anonymous 476; holotype: B [ 10_0295745 ]!

Examined specimens

LEBANON – Bsharre • Hadet ej Jobbe ; 12 Jun. 1933; fl; G. Samuelsson 5940; K • Ehden ; 16 Jun. 1933; fl; G. Samuelsson 6119; K . – El • Hermel ; 16 Aug. 1945; fr; P. H. Davis 9858; K • locality unknown ( Bishare ?); 30 Jul. 1855; fr.; Kotschy s.n.; P ,

SYRIA • locality unknown; s.d.; Kotschy 369; P.

Description

Small tree or shrub. Leaves petiolate, petiole ca 0.8‒4.2 cm long, glabrous. Lamina ca 3.4‒5.1 × 4.1‒7.4 cm, ovate, base cordate, equilateral, apex acute, margin crenate to serrulate, blade abaxially pubescent, lobed. Inflorescence umbellate, with 6‒8 flowers. Pedicel ca 3.2 cm long, puberulous. Hypanthium puberulous or glabrous. Sepals triangular, puberulous, persistent. Petals ca 1.4 × 1.0 cm, white, obovate or oval. Stamens 20‒30, unequal. Styles 5, pubescent at base. Pome ca 1.0‒2.0 cm in diameter, subglobose or ellipsoidal, red. Carpopodium ca 1.2‒4.5 cm long, puberulous.

Phenology

Flowers in May. Mature fruits from September to October.

Distribution

Bulgaria, Greece, Israel, Lebanon, Syria, and Turkey ( Fig. 55 ).

Chromosome number

2n = 34.

Note

The type of Crataegus trilobata (La Billardière s.n.) still exists, therefore the lectotype (Juvernalk s.n.) designated by Langenfeld (1991: 123) is invalid.

Figures

Fig. 55. Distribution of Malus trilobata (Labill. ex Poir.) C.K.Schneid.

Fig. 56. Morphological characters of Malus trilobata (Labill. ex Poir.) C.K.Schneid.; TCD0018096 (type), K000283471. Scale bars = 10 mm.