then been found by Wilson near Sun-tang, in the Si-fan 
region of north-western Szechuan, as well as by Farrer 
in Kansu. From Farrer’s indication, ‘On the Eaves 
of the World,” vol. ii. p. 186, his locality is in the Min- 
Shan range, somewhat to the north-east of Wilson’s 
collecting ground. Our figure has been prepared from 
a plant presented to Kew by Mr. Farrer in June, 1917. 
Of two plants then received, one was grown in the Rock 
Garden, the other kept in a pot in a cold frame. The 
species has proved to be a hardy perennial, both plants 
flowering in May, 1918, when our drawing was made. 
Both plants produced good seed, and survived the winter 
following; both flowered again in May, 1919. The 
conditions most suitable for D. Pylzowii are those needed 
for the well-known D. grandiflorum, Linn. Although the 
dark azure-violet shown in our _ illustration appears +0 
be the normal colour of the flower, Maximowicz records 
the existence of a form with pale rose or rose-lilac 
blossoms. 2 
Description.—Herb, perennial with several stems, 4—14 in. high, rising from 
a slender crown ; stems slender, erect or ascending, softly pubescent or almost 
villous with spreading or somewhat deflexed hairs, more or less branched, the 
branches long. _ Leaves pedately lobed, the radical like the lower cauline, but 
with longer petioles and less deeply divided, somewhat rounded in outline, 
about 2 in. across, 5-partite, the main-lobes wide cuneate and sparingly lobulate 
or upwards thomboidly expanded and 3-fid to the middle, segments sparingly 
laciniate with the ultimate lobules linear abruptly acute ; upper cauline leaves 
with gradually shortened petioles and less divided blades. Flowers azure-violet, 
with a spur 1}-2 in. long, solitary or paired on each branch, long peduneled ; 
peduncles hairy like the stem, but more densely so upwards ; bracts 2, linear or 
linear-lanceolate, 3-}in. long, somewhat distant from their flowers. Sepals 
connivent in a wide open bell, wide-elliptic or elliptic-ovate, obtuse or bluntly 
apiculate, 3-1 in. long, loosely pilose on the back, the uppermost produced into 
a pubescent spur with a recurved rather acute tip. Petals much shorter than 
the sepals, glabrous above, lamina oblong obliquely truncate, about 4 in. long, 
upwards brownish-black, nearly white towards the base, passing into a glabrous, 
slender, greenish spur; the lateral with a rounded-ovate lamina, about } in. 
long, } in. across, 2-fid to the middle with obtuse lobes, blackish-brown at the 
base, elsewhere blue with a golden beard in the middle above, beneath loosely 
pilose with long flexuous hairs; claw narrow, somewhat pilose, 4 in. long. 
Filaments subulate, sparingly ciliolate above; anthers blackish. Carpels 5, 
oblong, close-set, villous, } in. long. : 
Tas. 8813.—Fig. tM portion of a leaf ; 2 2 
3, stamens ; 4, pistil:—all enlarged. °° flower, the sepals removed ; 
