KEY TO THE SPECIES

1Leaves densely woolly when young, glabrate, with finely reticulate darker venation which is distinctly visible underneath. Hypanthium up to 2.5 mm long, less than half of it free from the ovary
1'Leaves only slightly hairy when young, soon quite glabrous, with a more coarse venation, not darker and not so clearly visible. Hypanthium 3 mm or longer, half of it or even more free from the ovary