Turkey rhubarb, the well-known medicinal drug, is the root of a very elegant plant (Rheum palmatum), coming to greatest perfection in Tartary.

Lygodium palmatum Adder's Tongue.

Lygodium palmatum] Fifty years ago this beautiful fern was more common than at present.

Lygodium palmatum.

Rheum Palmatum.

256. RHEUM palmatum.

246 Rheum Rhaponticum Rhapontic Rhubarb c.m. 247 - undulatum Waved-leaved ditto c.m. 248 - palmatum Palmated-leaved ditto c.m. 249 - tataricum Tartarian ditto c.m. 250 - hybridum Bastard ditto c.m. 251 - compactum Compact ditto c.m