Rubus

(ru’-bus) [L.]. Blackberry. A genus of plants of the order Rosacea?. The bark of the root of R. can a dens is, R. villosus, and R. trivial is is the R. of the U. S. P., and is used as an astringent tonic in diarrhea. Dose gr. xx-xxx (1.3-2.0). Extractum rub i fluidum (U. S. P.). Dose f^ -j (2.0-4.0). Syrupus rub i. Dose f^j-ij (4.0-8.0). The fruit of R. idaeus (R. ickeus, U. S. P.), the raspberry, is used to prepare Syrupus rub i idaei, which is used as a tonic. 561