978 APETALEX. 
dehiscent drupe or achenium, often with the calyx surround- 
ing it; female flowers often in the internal part of the hol- 
low receptacle or involucre, which becomes fleshy, or placed 
upon the receptacle forming a fleshy head ; seed destitute of ~ 
albumen. 
ExampLes.—Hop (Humulus Lupulus) ; the Banyan tree 
(FPieus indica) ; Fig (Ficus Carica) ; Nettle ( Urtica dioica) ; 
the well known plant which furnishes Hemp (Cannabis sati- 
va); Mulberry (Morus nigra). The bark of Morus pa- 
pyrifera (Broussonetia p.) furnishes the paper of the Chi- 
nese. 
There are three divisions in this family; 1. the true Ur- 
tice, with 1-celled ovaries, erect ovules, fruit dry, and 
flowers in a raceme or panicle, exemplified in Urtica and 
Humulus ; 2. the Ulmacez (Ulmus), with 2-celled ovaries 
and pendulous seeds; and, 3. the Artocarpex (Artocarpus), 
‘with the flowers in fleshy heads, ovules suspended, and fruit 
a fleshy receptacle with nuts in fleshy calyces, or a fleshy re- 
ceptacle or involucre enclosing the pericarps or acheniums 
(Ficus.) 
Economica Properties.—The true Urricex contain 
no plants useful in domestic economy except the Hop (Hu- 
mulus Lupulus), which is valued in brewing for the bitter qua- 
lity of its strobili or cones. The ArrocarreZ contain the 
Bread-fruit tree (Artecarpus incisa), the fruit of which is a 
valuable article of food in some tropical countries; the Fig- 
tree (Ficus Carica) ; the Mulberry-tree (Morus mgra), Mo- 
_ rus tinctoria, the wood of which yields fustic, a yellow die; 
the Cow-tree (Palo de Vacca or Galoctodendron utile), which 
furnishes abundantly a nutritious juice resembling milk. 
_ Cecropia peltata, it is said, is one of the plants which afford 
 eaoutchouc ; this is also obtained from Ficus edastica in this 
order, and from some Apocynex and Euphorbiacee. Gum 
_ Tae is procured from the Ficus Indica. 
