ELM FAMILY 75 



forming a sheath above the swollen joints of the stem; flowers, small 

 and with a two- to six-parted perianth; fruit, an angled akene. 



Official drug Part used Botanical name 



Rheum officinale 

 Rheum Rhizome Rheum palmatimi and 



the variety tanguticum 

 Unofficial 

 Rumex Root Rumex crispus 



Family io. Phytolaccace^. — A family of apetalous trees, shrubs, 

 or woody herbs — the pokeweed family — with alternate entire leaves 

 and flowers resembling those of the goosef oot family {Chenopodiacem) , 

 but differing in having the several-celled ovary composed of carpels 

 united in a ring, and forming a berry in fruit. It embraces 21 genera, 

 and 55 species, tropical and sub-tropical. 



Official drug Part used Botanical name 



Phytolacca Root Phytolacca decandra 



Family ii. Chenopodiacem. — A family of more or less succulent 

 apetalous annual or perennial herbs — the goosefoot family — with 

 usually alternate exstipulate leaves and minute greenish flowers. It 

 embraces about 80 genera and over 500 species, among them being 

 several garden vegetables and a number of weeds. 



Official drug ' Part used Botanical name 



Oleum Chenopodii Volatile oU Chenopodium anthelminticum 



Saccharum Refined sugar Beta vulgaris 



Family 12. Auistolochiacem. — A small family of apetalous 

 plants — the birthwort family — chiefly climbers or twiners and tropical, 

 with irregular, dingy, often offensively smelling flowers. There are 

 five genera and about 200 species. 



Official drug Part used Botanical name 



„, . , f Aristolochia serpentaria 



Serpentana Rhizome and roots W ■ ^ , i,. -.- 1 ^ 



^ \ Aristolochia reticulata 



Unofficial 



Asarum Rhizome and roots Asarum canadensis 



Family 13. IJLMACEiE or Elm Family. — Forest trees indigenous 

 to the temperate and tropical zones, characterized by being woody 

 plants, with pinnately veined leaves and caducous stipules and without 



