YUNNAN AND EASTERN TIBET. 215 
point up to their entrance into Yunnan has, so far, been 
untapped, but almost certainly, once the country becomes more 
opened up, we shall have other and perhaps more beautiful 
species added to those mentioned. 
mong the new species are many unique and beautiful forms, 
prominently P. Lzttontana and P. Forrestiz. 
The former is a superb species of the section Capztatae, with 
flowers in densely-crowded spikes of 2-3 inches in length, each 
bearing hundreds of small, deflexed, fragrant blooms of a deep = 
purplish-blue ; but the remarkable feature of the species is the 
magnificent colouring of the calyces, which are of a vivid scarlet- 
crimson, and form a most striking contrast to the rich blue 
of the expanded flowers. The plants grow in crowded 
masses, generally in moist, grassy openings in pine forests at 
an altitude ranging from 10,000-11,000 feet. 
P. Forrestii, of the section Callianthae, is a curious as well as 
a beautiful species, and a lover of dry stony situations. The 
flowers are large and numerous, of a rich deep shade of orange, 
and fragrant. The foliage is densely coated with glandular hairs, 
and, in the fresh state, has a peculiar, but not unpleasant, 
aromatic odour. The plant is specially adapted to the situation 
in which it is commonly found, ze, the crevices of dry, shady 
limestone cliffs, in having a long, intensely tough, woody root- 
stock of 2-3 ft. in length. The base of this is very tapered, 
generally only a few inches being enclosed in the crevices of the 
rocks, From this point the plant is pendulous for almost the 
full length of the remainder of the rootstock, a few inches of the 
growing apex being turned out and upwards. The rootstock 
for two-thirds of its length is covered with the induvie of pre- 
vious year’s foliage, which, at the apex, form a dense matted 
mass, with the fresh foliage and flowers arising from the centre. 
Judging from the length of the rootstocks of specimens seen 
growing, allowing two whorls of leaves for one year’s growth, a 
liberal estimate, some plants must reach the age of 50-100 years. 
Another feature which pointed to great age in the species was, 
the cliffs behind some of the larger specimens were scored and 
worn to the depth of fully an inch by the motion of the ee in 
the wind. 
