ORD. XLI. SCABRIDA. 
(From Scaber ; rough, rugged, or bristly) rough leaved Plants. 
i ceteeennmmmntntimenin acemumiemematnened 
PARIETARIA OFFICINALIS, WALL PELLITORY. 
SYNONYM4A, Parietaria. Pharm. Lond. & Edinb. Gerard. 
Emac. p. 331. Rati Hist. p. 206. Synop.p. 158. Parietaria vul- 
garis. Park. Theat. p. 436. Parietaria foliis elliptico-lanceolatis 
hirsutis. Hal. Stirp. Helv. n. 1612. Parietaria officinalis. 
Huds, Ang. p. 442. Lightif. Scot. p. 634. Withering Bot. Arr. 
p. 1141. Curt. Flor. Lond. Flor. Dan. 521. 
Class Polygamia. Ord. Monoecia. Lin. Gen. Plant. 1152. 
Ess. Gen. Ch. Herm. Cal. A-fidus. Cor. 0. Stamina 4. Sto 1, 
Sem. 1. superum, elongatum. 
Fem. Cal. 4-fidus. Cor. 0. Stam. 0. Stylus &: 
Sem. 1, superum, elongatum. 
Sp. Ch. P. fol. lanceolato-ovatis pedunculis dichotomis calycibus 
diphyllis. 
THE root is perennial, reddish, fibrous, creeping: the stem is 
erect, rough, viscous, reddish, and furnished with long spreading 
branches: the leaves are elliptical, pointed, veined, somewhat 
hairy, and placed on short footstalks: the flowers are small, of a 
greenish colour, tinged with red, placed at the ale of the leaves 
in sessile-branched veticillate clusters, and are both hermaphrodite 
and female; two of the former and one of the latter are placed 
within the same involucrum, which is permanent, and divided into 
seven irregular oval pointed leafits, beset with glandular hairs: 
