248 ARBORETUM AND FRUTICETUM. PART Ill. 
Spec. Char. Peduncles 1-flowered, almost equal in length with the leaves. 
Leaves biternate; leaflets oblong-lanceolate, acuminated, serrated. Petals 
emarginate at the apex. (Don’s Mill.,i. p.10.) Siberia. Flowers white. June 
or July. 1753 Height 12 ft. 
Variety. A blue-flowered variety of this species is men- 26 
tioned, in Bot. Mag., t. 1591. 
Description. There is a considerable similarity in this 
to the last, in foliage and habit of growth; but it is less 
robust and less branchy ; its branches are more ligneous- 
looking, and the segments of the leaves longer. The 
calyxes of the flower are white, longer, and with the 
tips rather connivent than spreading. The whiteness 
of the calyxes seems to be partaken of by the bark 
and foliage, as these are of a lighter colour than in 4. 
alpina, the calyxes of which are of ablue colour. The 
flowers of A. sibirica are longer than those of A. alpina 
and perhaps less numerous. 
Geography, History, §c. Found in the mountainous 
districts of Siberia, as far as the Eastern Ocean, co- 
vering the shrubs and underwood, much in the same 
manner as Clématis Vitalba does in England. Pallas observes that it 
flowers profusely in June, and that in autumn it delights the eye with its 
clusters of white feathery seeds. The plant is not very common in British 
gardens, and has been chiefly cultivated by Messrs, Loddiges. 
4 3. A. ocuoTeE’Nsts Pall, The Ochotskoi Atragene. 
Identification. Don’s Mill,, 1. p. 10. ; Sweet’s Hort. Brit,, p. 2. 
Synonymes. Atragene violacea Pall.; Clématis ochoténsis Poir.; and Dec. Prod., 1. p. 10. 
Spec. Char. Peduncles 1-flowered. Leaves biternate ; leaflets oblong-lanceolate, acuminated, ser- 
rated. Petals few, linear. (Don’s Mill.) Siberia. Flowers violet. From May to July. 1818. Height 
12 ft. 
Description. The plant bears a strong resemblance to A. sibfrica, of which it is probably only a va- 
riety. The flowers have four ovate mucronate sepals, which are downy in the margin. Petals none, or 
sometimes with the outer stamens abortive, a little elongated, and linear. Filaments velvety, a little 
shorter than the sepals. (Don’s Miil., i. p. 10.) 
Geography, History, §c. Native of Siberia, towards the’Ochotskoi Sea; and of Kamtschatka, be- 
tween Ochotsk and Kantsch, It appears to have been introduced into England in 1818, but we have 
not seen it in cultivation. 
4 4, A. america‘na Sims. The American Atragene. 
Identification. Sims, in Bot. Mag., t. 887.; Swt. Hort. Brit. ; Don’s Mill., 1. p. 10. 
Synonyme. Clématis verticillaris Dec. Prod., 1. p. 10. 
Engravings. Bot, Mag., 887.; E. of Pl., 7965., and our fig. 27. 
Spec. Char. Peduncles 1-flowered; leaves whorled, in fours, ternate ; leaflets 
stalked, cordate, lanceolate, acuminated, entire or somewhat lobed or ser- 
rated. Petals acute. (Don’s Mill.,i. p. 10.) North America. Flowers pur- 
plish blue. May to July. 1797. Height 15 ft. 
Variety. 
& A. a. 2 obliqua Douglas MS. The oblique American 
Atragene. —Leaflets bluntly serrated. (Don.)} 
Description. This species is distinguishable from all 
the other Clematidee described in this work, by the 
peculiarity of its leaves being disposed, not oppositely, 
in alternately decussating pairs, but in whorls of four. 
This is an anomalous characteristic, which De Candolle 
has expressed by his specific epithet verticillaris. The 
flowers are large, of a palish purple, and less showy than 
those of A. alpina. + S87 
Geography, History, §c. Found in North America, in shady places, on the 
sides of rivulets, climbing and creeping among loose rocks ; at New York and in 
Pennsylvania; near the foot of the Blue Mountains ; on the eastern declivity of 
the Rocky Mountains; and at Cape Mendocina, on the north-west coast. 
Douglas’s variety is found on the eastern declivity of the Rocky Mountains, 
in valleys; and at Cape Mendocina, on the western coast. The species appears 
