Plant.

Botanical name.

Where found or used.

Potato .........

Solanum tuberosum, Linn.

Widely distributed.

Beet-root .......

Beta vulgaris, Linn.

Widely distributed.

Sweet Potato .......

Ipomcea batatas, Linn.

S. America, W. Indies, etc.

Cassava, bitter........

Manihot utilissima, Pohl.

Tropics.

Cassava, sweet....

Manihot palmata, var. Aipi, Muell.-Arg.

Tropics.

Arrowroot ......

Maranta arundinacea, Linn.

W. Indies, C. America, etc.

Artichoke ......

Helianthus tuberosus, Linn.

Europe; N. America.

Mescal Maguey....

Agave, spp.

Mexico.

Yam ....

Dioscorea sativa and D. alata, Linn.

Tropical Africa, W. Indies, etc.

Tchirish.................

Asphodelus ramosus, Linn., and A. albus, Willd.

S. Europe; Algeria.