Rubus caesius Linnaeus (1753: 493)

Akopian, Janna, 2024, Taxonomic synopsis of the genus Rubus (Rosaceae) in Armenia, Phytotaxa 677 (2), pp. 125-143 : 137-138

14. Rubus caesius Linnaeus (1753: 493) ; Yuzepchuk (1941: 56); Heslop-Harrison (1968: 25); Krasovskaya (2001: 388) Lectotype (designated by Beek: 1974):— RUSSIA. Siberia, s.d., Royen Adriaan van, s.n. (LINN 653.7). ( Fig. 6 C, D )

≡ Rubus fruticosus var. caesius (L.) Fiori (1898: 580).

Distribution in Armenia: in all floristic regions. In broad-leaved forests, shrubberies, alongside river banks, as a weed in gardens, along roads, on rocky screes, at an altitude of 500–2100 m above sea level.

Phenology: Flowering May–July; fruiting July–September.

General distribution: Caucasus, Europe, Siberia, Far East, northwest China, west Himalaya, northwest Africa, southwest Arabian Peninsula.

Some variations of R. caesius samples, collected from different regions of Armenia, in the pubescence of the leaves from green with a small number of hairs to velvety-pubescent below, as well as in the length of sepals are observed. The leaf size of plant specimens grow in the shade increases more than twice (ERE 81227, ERE 96384).

Selected specimens. ARMENIA: Ashtarak district, Byurakan village , gorge, 16 July 1924, Kara-Murza 68368 ( ERE) ; Inter monaster Achtala et Samblung , in sylva, 10 September 1925, Shelkovnikov 21315 ( ERE) ; Arzni , in lapidosis, 30 August 1934, Tamamschian 21317 ( ERE) ; Meghri district, Megraget river gorge, 1 May 1948, Mulkidzhanyan 56385 ( ERE) ; Alaverdi region, Dzoraget , river floodplain, near the hydroelectric station, right bank, above the bridge, 25 June 1954, Mulkidzhanyan 63235 ( ERE) ; Noyemberyan district, Koti-gekh × Noyemberyan , pass section, 25 June 1954, Mulkidzhanyan 63234 ( ERE) ; Shamshadin district, Kolagir × Aygedzor , left bank of the Khndzorut river , 24 July 1958, Mulkidzhanyan 67701 ( ERE) ; Yerevan, Elar × Arzni, closer to Arzni , to the right of the highway, rocky wormwood semi-desert, 20 August 1960, Mulkidzhanyan, Avetisyan, Gabrielyan 66482 ( ERE) ; Meghri district, Meghri , on the road to Legvaz, 22 October 1957, Mulkidzhanian 63981 ( ERE) ; Kafan district, Shikahokh reserve, near N. And village , 27 October 1960, Grigoryan 96384 ( ERE) ; Ararat region, Khosrov reserve , eastern slope, 1600-1700 m above sea level, 21 September 1962, Mulkidzhanyan 93885 ( ERE) ; Meghri, Lichk, Vardanadzor , bushes, 21 July 1963, Mulkidzhanyan 80978 ( ERE) ; Noemberyan district, left bank of the Voskepar River , bear nut clump, 18 June 1964, Mulkidjanian 81227 ( ERE) ; Tumanyan district, environs of the village of Dsegh, right bank of the Marz River , coastal forest, 27 August 1996, Nersesian 147019 ( ERE) ; Kotayk region, Abovyan district, Garni village, Azat river gorge, between the confluence of the Geghard and Milli rivers and the waters of the reservoir, right bank, floodplain, 1250 m a.s.l., 19 September 1998, Manakyan 172706 ( ERE) ; Syunik province, Goris district, road to Tatev, gorge at crossing with Vorotan river , 1024 m a.s.l., 39 o 23'41''N / 46 o 15'30''E, 19 August 2005, Fayvush, Tamanyan, Vitek 193068 ( ERE) ; Shamshadin district, environs of the village of Aygedzor , 700 m a.s.l., 39 o 31.180'N / 044 o 07.809'E, 7 July 2007, Kartashyan 185778 ( ERE) ; Gegharkunik province, Martuni district, Selim pass, small side valely c. 1.5 km SSW of the Karavanserey, 2090 m a.s.l., 39 o 56'16''N / 45 o 13'47''E, 22 August 2007, Fayvush, Tamanyan, Vitek, Vitek 202241 ( ERE) ; Syunik province, near the road from Tatev to Tandzatap , sparse forest, 1570 m a.s.l., 39 o 22'16''N, 046 o 14'29'' E, 28 July 2019, Stepanyan-Gandilyan 198542 ( ERE) .

Figures

FIGURE 6. Leaves and fragments of stems of Rubus caucasicus (Ijevan, pass, Verin Agdan, forest. 11 August 1954. Mulkidzhanyan 58313, ERE)—A, B; R. caesius (Inter monaster Achtala et Samblung, in sylva. 10 September 1925. Shelkovnikov 21315, ERE)—C, D