274 APETALEX, 
Officinal Plants. 
Salix alba. 
Salix fragilis. 
Salix caprea. 
ORDER XXXVIIL. 
BETULINEZ. 
Included in the Amentacee, Juss. 
Cuaracrers.—This family resembles the last, but has 
moneecious flowers, sometimes in the male flower a calyx of 
several divisions, a 2-celled ovary, with one pendulous ovule 
in each cell; and the pericarp a membranous indehiscent 
l-celled, 1-seeded nut. ‘ 
Exampres.—Birch (Betula), Alder ( Alnus.) 
The Betulinee contain tannin in their barks, which are 
al” somewhat tonic, — 
ORDER XXXIX. 
MYRICE. 
_ Cuaracrers.—Trees or shrubs, with alternate _— 
aves, often dotted ; unisexual flowers, on an amentum ; 
: 1-celled, 1-seeded ovary, -with an erect ovule, surrounded by 
several hypogynous scales, which in some become fleshy ; 
— the pericarp is dry and dehiscent. 
Ea stir ras. <-Siweek Galajce Dubs Mite (rien Galt) 
The berries of Myrica cerifera farnish a kind of wax. 
