[Botany • 2018] Cerasus kumanoensis (Rosaceae) • A New Species from the Southern Kii Peninsula, Japan

Cerasus kumanoensis  T. Katsuki 

in Katsuki, 2018

 DOI: 10.18942/apg.201801 

A new species, Cerasus kumanoensis T. Katsuki (Rosaceae), sp. nov., is described from the southern Kii Peninsula, Japan. It is similar to C. jamasakura var. jamasakura and C. leveilleana because the corymbose inflorescences and extended peduncle are identical in these three taxa. However, C. kumanoensis is distinguished by several morphological and phenological characteristics, an earlier flowering period, narrowly ovate and smaller leaf blade (4–8 cm long, 1.8–3.6 cm wide) and glabrous petiole and pedicel.

Key words: Cerasus kumanoensis, flowering cherry, flowering period, Japan, Kii Peninsula

Fig. 1. Cerasus kumanoensis, sp. nov. 
A, shape of tree in full bloom (in Kumano on 9 Apr. 2017, TFA HAD-000288); B, hypanthium and calyx lobes [in Kozagawa on 21 Mar. 2017, TI00012970 (holotype)]; C–E, flower (C in Kumano on 9 Apr. 2017, TFA HAD-000295, D in Kushimoto on 21 Mar. 2017, FA HAD-000213, E in Kumano on 14 Mar. 2017, TFA HAD000190); F, mature fruit (in Kumano on 28 May 2017, TFA HAD-000295); G, leaves on short shoot (TI00012971).

Toshio Katsuki. 2018. A New Species, Cerasus kumanoensis from the Southern Kii Peninsula, Japan. Acta Phytotax. Geobot. 69(2); 119-126. DOI: 10.18942/apg.201801