Primula xanthopa Balf.f. & R.E.Cooper
Section Souliei
Type specimen: Cooper 4393, 4977 resides E (specimens E00024763, E00024764, E00024765) and US (specimen US00116527) and P (specimen P04595421).
Additional Reference: R.E. Cooper, "Botanical Tours in Bhutan, with Special Reference to the Occurence of the Genus Primula." in Notes of the Royal Botanic Garden Edinburgh 18:67. 1933.
Epithet: Named for yellow farina on the underside of the leaves.
Distribution: Bhutan
This little known species is endemic to Bhutan, found only on the Dongla pass to the east of Minji gompa. It resembles P. yunnanensis but its section is uncertain. Distinguished by glabrous leaves which have a deeply incised-dentate margin, yellow farinose beneath and a distinct winged petiole. The scape is 5-10cm tall, has 1-3 purple exannulate flowers with a yellow farinose eye.
