. LATIN AND ENGLISH INDEX. 
Prinos. — — Winter-berry. 
——- ambiguus. Black Alder. 
- glaber, Ink-berry. 
* Prunella. Self-heal. " 
Prunus. Plum-tree. Cherry-tree. _ 
Pteris. Brake. 
Pulmonaria. Lung-wort. 
Pycnanthemum. Horse- or Mountain-mint, 
Pyrola. Winter-green. 
Pyrus. Apple-tree. 
Eotryapium.  May-bush. 
Quercus. Oak-tree, 
Ranunculus. Crow-foot. 
Rhamnus. Buck-thorn. 
Rhinanthus. Yellow-rattle. 
Rhododendron. se Bay. Mountain 
: Laurel. 
Rhus. * _ Sumach. 
Toxicodendron. Poison Oak. 
Ribe. ~ Currant-tree. Gooseberry. 
Ricinus. Palma-Christi. | Castor-oil. . 
tree. 
Robinia, False Acacia. — Locust-tr. 2. 
Rosa. Rose-Hep-tree. 
Rottboellia. Hard-grass. 
Rubia. Madder, 
Rubus. Bramlle. Raspberry. 
~ trivialis. Dewberry. 
—— Chamemorus. Cloud-berry. 
villosus, Black-berry. 
Rumex, Dock. Sorrel. 
Ruppia. Tassel Pond-weed. 
Sabbatia. . Centaury. 
Saccharum. Wild Sugar-cane. 
Sagina. Pearl-wort. 
Sagittaria. Arrow-head. Arrow-root. 
Salicornia, Salt- or Glass-wort, Sam- . 
phire. 
Salix. Willow. Osier. 
Salsola. Salt-wort. 
Salvia. Sage, 
