Cotoneaster transcaucasicus Pojark.

Niaki, Nemat Allah Raei, Attar, Farideh, Zamani, Asghar, Maroofi, Hossein & Joharchi, Mohammad Reza, 2022, Five new records and two new reports of Cotoneaster Medik. (Rosaceae) for the Flora of Iran, Adansonia (3) 44 (14), pp. 141-152 : 143

Cotoneaster transcaucasicus Pojark.

( Fig. 2 )

Botanicheskogo Instituta Imeni V. L. Komarova Akademii Nauk SSSR, Leningrad [St. Petersburg] 21: 162, t. 1 ( Pojarkova 1961).

TYPUS. — Armenia, Mergi, between Lischk and Pirmazra; Pojarkova 733 (holo-, LE) .

SPECIMENS EXAMINED. — Iran. Province Kurdistan, Baneh, Kanibard village , 15.IX.2006, Maroofi & Mansoori 8428 ( HKS); Baneh to Sardasht, toward to Bolhasan village, 21.X.2003, Maroofi & Naseri 6520 (HKS); c. 35 km from west of Baneh to Sardasht, Namazgah village, 10.X.2005, Maroofi & Mansoori 7557 (HKS) .

NOTE

According to Browicz 1972, this species which is distributed in Armenia and northeast Turkey, was observed among herbarium specimens at HKS ( Fig. 2A ). C. transcaucasicus is the closest relative of C. nummularius Fisch.& C.A.Mey. ( Browicz 1972) . Generally, these species have some similarities in features of leaves (size) fruit color (red), calyx orientation, indumentum of all parts except in sepals. On the other hand, there are a few remarkable differences between these species: C. transcaucasicus is distinguished by obovate leaves with cuneate base and widely rounded-emarginate apex ( Fig. 2B ) and tomentose sepals in fruit from C. ellipticus with elliptic- ovate leaves widely cuneate to rounded base, obtuse apex and glabrous sepals.

Figures

FIG. 2. — Cotoneaster transcaucasicus Pojark.: A, habit;B, leaves and fruits.Collection number:Maroofi & Naseri 6520 (HKS);determined by Raei Niaki & Attar.