REPORT Of WORK IN 1915 IN KANSU AND TIBET. 33I 
Caragana sp. (F 514) is the dense tight little golden-flowered 
dome that covers all the hottest and aridest loess downs of the region 
in general, not, of course, ever climbing towards alpine conditions. 
It suggests Ulex nanus, but is hardly so good, though quite as prickly. 
Caragana sp. (F 515) is another species characteristic of the hottest 
and driest places of the region, as on the torrid slopes round Tien 
Tang Ssu. It is a tall and very graceful loose shrub, weeping out 
in fine long minute-leaved sprays, beset along their length with yellow 
blossoms. 
Carex sp. (F 732) occurs in the long grass about Wolvesden, and 
is interesting only for the long black tassels it develops, depending 
in twos or threes, from the graceful stem of some eighteen inches, 
high above the lustrous clump of green below. 
Cerasus sp. (F 524) is a very pretty shrub or small tree, rare in the 
coppice about half-way down Wolf stone Dene. It has flattish out- 
spreading boughs, from which depend in mid-May a lavish profusion 
of soft pale pink flowers, followed in August by little brilliant red 
cherries. 
Cerasus sp. (F 674).' — This is a smaller shrub altogether, from the 
ghyll by which you ascend to the downs of Tien Tang. It has rather 
larger blossoms, in great profusion, and of a rich warm rose, followed 
by diminutive white-heart cherries, and is distinctly a charmer. 
Clematis sp. (F 559) belongs to the Atragene group, and is of 
incomparable loveliness. I only know it in the ghyll of Tien Tang, 
where it rambles frailly through light bushes, to the height of two 
or three feet, and then cascades downwards in a fall of lovely great 
flowers of softest china-blue, so filled with petaloid processes that 
they seem as double as any production of the garden. The seed, alas, 
is very uncertain, not having been ripe when I left, and the Lord 
Abbot of Tien Tang having failed to fulfil his promise of sending us 
on some more ; so far we can only feel satisfied that we possess it in 
a painting and a photograph. 
Colutea sp. (F 659) is a scarlet-flowered plant of the Si-ning valleys 
which will like hot dry places presumably. Purdom sent me up sprays 
of it from one of his expeditions to Si-ning, and seed was subsequently 
got. Otherwise I know nothing of its size or habits. 
Corydalis curviflora.< — Yet again have I failed utterly to get seed 
of this marvellous azure loveliness, so abundant in all the scrub and 
coppice of the whole Tibetan March, far away up into the Altai. Nor 
have I a better tale of the yet more glorious C. melanochlora (F 254), 
which seems to have much the same distribution, though at much 
greater altitudes, only in the last and gauntest screes of the alps. 
Each season I sent home tubers, and each season they arrived alive, 
only subsequently to moulder off in some unexplained fit of dissatis- 
faction. Perhaps they were treated too lovingly, and made too com- 
fortable in too soft and well-watered soil. (Painting and photograph.) 
C. rosea, however, fell to my net. This is the sprawling lax 
plant with long compound spires of pink blossom, that occurs only in 
