DESCRIPTIVE LIST OF NEW PLANTS, 
111 
verse lines, occasioned, it would appear, by the progressive wi¬ 
thering and contraction of the tubercles. This summit is broadly 
convex, but with a deep depression in the centre, glaucous, tra¬ 
versed from the centre outwards by 6-8 furrows, and thus divided 
into as many convex ridges ; and these again, transversely, but 
more or less deeply, into rather large, rounded, more or less con¬ 
fluent, unarmed tubercles, each of which has a dense tuft or short 
pencil of compact, erect hairs—no aeulei. The flowers proceed 
from a young tubercle, near the centre of the crown ; the base of 
the calyx is downy. The petals are lanceolate, rather numerous, 
white, externally tipped with pale green, and having a rose co¬ 
loured line down the centre; stamens yellow; stigma of four 
spreading rays.-— Rot. Mag. 4296. 
Rantjnculace m.—Polyandria Tri-Pentagynia. 
Aguilegia jucunda (Fischer and Meyer). Dr. Fischer says that 
this plant stands intermediate, as it were, between the true A. 
glandulosa and A. alpina. “ It differs from the former not only 
in those points included in the specific character, but in the 
sepals being ovate, tapering to the point, and deep blue ; in the 
petals being roundish ovate (not truncate, as in A. alpina , nor 
acute, as in A. glandulosa ), whitish, touching each other by their 
whole length; in the anthers being narrowly oval, the carpels 
fewer (6-10), and the seeds thicker, with five imperfect longi¬ 
tudinal keels. Among the slighter marks by which it differs 
from A. alpina are the long peduncles, the spurs, which are ex¬ 
actly those of A. glandulosa , the white petals, the yellow anthers, 
and more numerous carpels. It is found in the mountains of 
Siberia.” 
In gardens it is a fine hardy perennial, growing about a foot 
high, when planted in a compost composed of sandy loam and 
leaf-mould. It is well suited for rock-work, where it can be kept 
free from damp when in a state of repose, but freely supplied 
with moisture during the growing season, otherwise the plants 
dwindle away and never flower.— Bot. Reg , 19-47. 
Iridace^e.- —Monadelphia Triandria. 
Tigridia conchiflora Watkinsoni (Paxton). This variety was 
raised by Mr. J. Horsefield, of Whitfield, near Manchester, from 
