CHAP. XCVIII. ARISTOLOCHIA CEH. ARISTOLO CHIA. 1329 
ale A. sv'pHo L’Hérit. The Siphon-like, or tube-flowered, Birthwort. 
Identification. Ait. Hort. Kew., 3. p. 311.; L’Hérit. Stirp, Nov., 13. t. 7.; Michx. Fl. Bor. Amer., 2. 
p. 161.; Willd. Sp. Pl., 4 p.155.; Lodd. Cat., ed. 1836. 
Sy nonymes. A. macroph¥ila Lam. Encycl., 1. p. 252.; Aristoloche Syphon, Fr. ; grossbliattrige 
O sterluzey, Ger. ; Pipe Vine, or Birthwort, Amer. 
Engravings. L’Hérit. Stirp. Nov., t. 7.; N. Du Ham., 4.t. 10.; Bot, Mag., t. 534.; and our 
fig. 1210. 
Spec. Char., §c. Stem twining. Leaves cordate, acute. Bractea of the 
peduncle ovate. Corolla ascending; its limb in 3 equal portions, not ex- 
panding flat, brown. (Willd.) A deciduous twining shrub; a native of 
North America, on the Alleghany - 
Mountains, from Pennsylvania to 
Carolina; producing its yellowish 
brown flowers in May and June. It 
was introduced in 1763, and is fre- 
quent in gardens, where it forms a 
tall twining shrub, flowering abun- 
dantly. In favourable situations it 
reaches to a considerable height : a 
plant in the Cambridge Botanic Gar- 
den, after reaching the top of the 
wall it was planted against, ascended 
a tree in the next garden; in all 20ft. 
The appearance of the magnificent 
leaves of this species is striking. In 
its native country, it climbs and 
twines to the summits of the very 
highest trees; flowering early in sum- 
mer, and ripening its seeds in autumn, 
though but sparingly. This species 
is remarkable for the form of its 
flower, which is bent like a siphon; for the trifid border of its corolla; for 
the very large bractea placed on the middle of the peduncle; and for the 
disposition of the seeds, and the aril common to all the seeds of each cell. 
The roots are woody, and have the smell of camphor. The stems, branches, 
and twigs are also strongly scented, as are the flowers. In British gardens, 
this species, to grow freely, requires a deep free soil, dry rather than moist, 
and a warm situation. It is propagated by division of the root, by suckers, 
or by seeds, which are sometimes received from North America. Price 
of plants, in the London nurseries, 1s. 6d. each ; at Bollwyller, 2 francs ; 
and at New York, 50 cents. 
2. A. ToMENTO‘SA Sims. The tomentose Birthwort. 
Identification. Sims in Bot. Mag., t. 1369. ; Lodd. Cat., ed. 1836. 
Engravings. Bot. Mag., t. 1369. ; Bot. Cab., t. 641. ; and our fig.1211. 
Spec. Char., §c. Stem twining. Leaves cordate, downy 
beneath. Peduncle solitary, without a bractea. Corolla 
with its tubetwisted back,and much more deeply divided 
than in A. sipho, expanding flat, and yellow, with the 
mouth of the tube of a deep purple. (2ncyc. of P/.) 
A native of North America; introduced in 1799, 
There is a plant in the Chelsea Botanic Garden, 
which is 12 ft. high ; but we are not without consider- 
able doubts as to its being any thing more than a ° 
variety of A. sipho. Being tolerably distinct, however, 
it merits a place in collections. 
App. i. Halfhardy Species of Aristolochia. 
A. sempervirens L , Bot. Mag., t. 1116., Bot. Cab., t. 231., is a native of Candia; introduced 
1727, and roduces its flowers in May and June, In green-houses, it is seldom seen. aon than +f 
or 5 ft. in height ; but, against a conservative wall, it would probably grow mueh higher. 
4s 2 
