Phelypaea boissieri f. lutea (Orobanchaceae), a peculiar new form from Turkey and typification of the name of this species

Abstract

The genus Phelypaea includes three holoparasite species with one of the most intense red flowers among all plants worldwide. So far, there are few references to other colour taxa of this genus. We describe a new yellow-coloured form, Phelypaea boissieri f. lutea, from Hakkari province in the Cilo Mountains of SE Turkey, found at an altitude of 2,470 m. In typical P. boissieri, here typified by us, the flowers are deeply red, and stems, calyx and scales are red to brown, or rarely pale-brown, whereas in the entire population of f. lutea the corolla, calyx, and scales are yellow to orange with black folds in the corolla, while only the stem is brownish.

Effect of global warming on the potential distribution of a holoparasitic plant (Phelypaea tournefortii): both climate and host distribution matter

“…However, P. boissieri is molecularly, morphologically and regarding host preferences similar to P. coccinea 24 , 25 . Therefore, further research into the variability of P. boissieri is required 25 , 106 . Of all Phelypaea species, P. coccinea shows the northernmost distribution, except for semi-arid habitats, also preferring colder climates, more mesophilic, and higher elevation habitats.…”