PENTANDRIA. 
267 
GLAU'X. Caps. five-seeded ; five-valved : Cal. simple; co¬ 
loured ; bell-shaped. 
QSalix pentandra. Polygonum amphibium. Atriplex. Salsola. 
Chenopodium maritimum.] 
(7) Flowers incomplete ; superior. 
THE'SIUM. Seed one ; corticated, inferior : Cal. bearing the 
stamens. 
DIGYNIA. 
(1) Flowers incomplete. 
XA^THIUM. Barren and fertile flowers on the same plant. 
B. Cal. common ; tiled : Bloss. one petal; five-cleft; 
funnel-shaped : Iiecept . chaffy. 
F. Cal. involucrum ; two-leaved ; two-flowered : Bloss. 
none : Drupa juiceless ; prickly; bifid : Nut two- 
celled. 
UL'MUS. Caps, one-celled, one-seeded, membranous, bor¬ 
dered, orbicular, compressed. 
HU'MULUS. Seed one; coated by a leafy calyx: Flowers, 
barren and fertile on different plants. 
B. Cal. five-leaved. 
F. Cal. one leaf ; entire ; opening obliquely. 
A'TRIPLEX. Seed one ; compressed ; Fertile flowers on the 
same plant. 
United FI. Cal. five-leaved. 
Fert. FI. Cal. two-leaved. 
CHENOPO / DIUM. Seed lenticular: Cal. with five divisions; 
segments concave. 
BE 7 TA. Seed one; kidney-shaped; imbedded in the fleshy 
base of the calyx. 
HERNIA'RIA. Seed one ; egg-shaped ; covered : Cal. with 
five divisions : Filaments five sterile. 
SAI/SOLA. Seed one ; convoluted as a snail shell; inclosed 
in a capsule imbedded in the fleshy calyx. 
[[Polygonum amphibium. Staphylea pinnata. Scleranthus an- 
nuus and perennis. Quercus. Cuscuta europsea. 
(2) Flowers of one petal; beneath the germen• 
SWER'TIA, Caps, one-celled; two-valved i Bloss. wheel- 
