1830 
of the finest primulas found on the Llkiang snow range. It grows in 
company with the preceding P. sinopurpurea (S.P.I. No. 55899) in similar 
situations, though not nearly so common, for it does not seed readily. 
The deep indigo-blue flowers are an inch and a half across and, like 
the preceding, appear quite early." 
prunus ursina (Amygdalaceae ) , 55872. Plum. From Beirut, Syria. 
Seeds presented by Alfred E. Day, American University of Beirut. "A 
wild plum. The fruits of this particular tree are decidedly larger 
and ewe ter than usual; they are about 1$ inches in diameter, and yel- 
low with pink cheeks. H (Day.) 
prunus spp. (Amygdalaceae), 55818, 55819, 55822 to 55824, 55901. 
From Yunnan, China. Seeds collected by J. F. Rock, Agricultural Ex- 
plorer of the Bureau of Plant Industry. Quoted notes by Mr. Rock. 
55818. prunus sp. Plum. "(Near Szemao. July, 1922.) A large 
tree 40 feet or more in height, collected 30 li (9 miles) from Szemao 
at 5,000 feet altitude. The red fruits are the size of walnuts, with 
loose, rather sour flesh. This should be good as a stock plant." 
55819. prunus sp. Plum. "(Near Szemao. July, 1922.) A large 
tree 45 feet high, found in the mountains at an altitude of 6,000 feet. 
The dark-red fruits, the size of large walnuts, have hard flesh with 
a sour insipid flavor. This tree was free from disease and should make 
a good stock plant." 
55822. prunus sp. Cherry. "(Likiang. August, 1922.) A tree 35 
to 40 feet high, growing among limestone boulders at an altitude of 
10,000 feet. It is a fine shapely tree, with glossy leathery foliage, 
racemes of white flowers, and dark-red, glossy fruits the size of a pea. 
* "The temperature at the village of Nguluke, in the Likiang plain, 
drops to below zero Fahrenheit in the winter, and a fall of 22 inches 
of snow in December is not uncommon." 
55823. PRUNUS sp. Cherry. "(Likiang. August, 1922.) A shapel/ 
tree which grows at an altitude of 10,000 feet among limestone boulders 
on the Likiang snow range. It has long drooping racemes of cream- 
colored flowers and Small yellowish green fruits which are sour when 
ripe." 
55824. prunus sp. Plum. "(Likiang. August, 1922.) A very hardy 
plum tree 35 to 40 feet high, growing semi-wild in the vicinity of 
Likiang, at altitudes of 8,500 to 9,000 feet. The bright-red, per- 
fectly round fruits are the size of large walnuts, clingstone, with 
yellow, sweetish sour flesh which makes excellent jelly and jam." 
55901. PRUNUS sp. Plum. "(No. 6056. Likiang. August 25, 1922.) 
A wild plum tree 20 to 25 feet high, of spreading habit, found in lime 
stone soil on the eastern side of the Likiang plain, opposite the snow 
range, at an altitude of 10,500 feet!. It bears perfectly round fruits 
