| Cotoneaster rosiflorus |
K. C. Chang & F. Y. Lu
A new species of Rosaceae subfam. Spiraeoideae, tribe Pyreae (formerly subfamily Maloideae) from Taiwan is described. A taxonomic treatment, line drawings, color photographs and pollen SEM micrographs are provided to illustrate the species. A somatic chromosome number of 2n = 68 is reported for the first time for Cotoneaster rosiflorus. Cotoneaster rosiflorus occurs mainly at 2,500-3,500 m altitude in central Taiwan. It resembles C. morrisonensis vegetatively, but is distinct by the erect to slightly spreading pink petals, pink or reddish filaments, 3-5 styles, and 3-5 pyrenes.
K.-C. Chang, C.-C. Wang, S.-L. Deng, Yoshiko Kono, F.-L. Lu and Ching-I Peng. 2011. Cotoneaster rosiflorus (Rosaceae), A New Species from Taiwan.Botanical Studies. 52(2); 211-218.