XX. 



ARISTOLOCHIA CLEMATITIS. 

 Common BirtJmort. 



Class XX. Gynandria.— Orrfey- III. Hexandrta. 



Nat. Ord. ARisTorocHiEiE. 



Gen. Char. Perianth superior, tubular, coloured, per- 

 manent, often swelling at the base, dilated at the mouth. 

 Anthers six, subsessile, inserted round the base of the 

 style. Stigma with six lobes. Capsule inferior, with 

 six cells. 



Spec. Char. Stem erect. Leaves heart-shaped. FlowerSi 

 upright ; lip oblong, shortly acuminate. 



SY NGN YMES. 

 Greek a.^ifTeXa^icc. 



r Aristolochia Clematitis recta. Bauh. Phi. 307- 

 Latin A Aristolocliia Saracenica Ger. Em. 847- 



vAristolochia Clematitis. Lin. Sp. Plan. 1364. 

 French.... Aristoloche commune. 

 Italian . . . Aristolochia. 

 Spanish . . . Aristoloqiiia comun. 



German... Waldrebe Osterluzey ; Waldreben Hohhvurzel. 

 Dutch .... Holworte! ; Osterlucy. 

 Belgic ■ ■ . ■ Dunne Holwortel ; Sarratyns-kniid. 



Description. — The root is perennial, long, cylindrical, slen- 

 der, creeping, and fibrous. The stems are simple, upright, 

 round, and striated, growing in a zig-zag direction, about two 

 feet in height. The leaves are alternate, petiolate, smooth, 

 heart-shaped, obtuse, of a bright green colour above, paler, and 

 veined beneath. The flowers are of a greenish yellow colour, 

 and rise several together from the axils of the leaves, on short 

 peduncles. The perianth (calyx) is monophyllous, tubular, 

 swelling at the base, dilated on one side at the mouth, and 

 lengthened into a strap-like lobe. The anthers are six in num- 



F 2 



