SUMMARY:
Observations include mass flowering of Primula whitei around 14,000 ft and a pale yellow Sikkimensis-type primula likely from hybridisation. On 10 June the party halted, marked several Primula populations, recorded Primula vernicosa as a notable westward occurrence, kept busy drying specimens, and planned to return to Phobjikha via the Pele La Range towards Chendebi while collecting a few Rhododendron variants.
CONTENT:
P. flagellaris 3231.
Lloydia serotina 3232 Cypripedium tibeticum 3233
It has up to 4 flowers on a scape of 3" on pedicels of 3/4". At about 14000 or a little over P. whitei was in flower in masses still, & the flowers were on the whole bigger than low altitude, early ones. Among a mass of P. Hopeana 3227, I saw a few plants of a Sikkimensis primula coloured pale yellow, tinged with pink 3228. This presumably is the result of hybridisation. We have so far seen no P. sikkimensis, nor of P. Waltoni.
10th June. Halt. - Rained most of the night, but fine & overcast nearly all today. I have marked with 12 stakes the new little petiolaris primula 3192, & today marked the var. of P. Griffithii 3205 & P. umbratilis 3213. We came across P. vernicosa today, No 3240.
As far as I know this has never been recorded from nearly so far west as this; in fact I don't think it is recorded as occurring outside SE Tibet. It is no beauty, but interesting. We all took it easy today after a climb to the top of the ridge. We got back by 11.30 & stayed in camp. Tsongpen has little rest though, as flowers will not dry in this humid atmosphere, & he has about 200 still being changed. A few variations in Rhododendron completed the bag. We now move on back to Phobjikha, but will go a new route over the Pele La Range towards Chendebi.
Rhod. fulgens 3239. R. campanulatum 3243, R. campan. var. aeruginosum 3244