Natural Orders.| I.—THALAMIFLOR. 169 
with 2 valves or a small indehiscent nutlet ; herbs with alter- 
s 4; stamens free in 2 rows, an inner with 4 longer 
and an outer with 2 shorter filaments; petals similar, their 
limbs cruciformly set; fruit with a partition (replum) stretched 
from placenta to placenta ..&. Cruciferz. 
epals 2; stamens united in two bundles of 3 each; petals 
irregular in 2 dissimilar pairs ; fruit without a replum 
IX. Fum 
ariacex. 
Petals usually 5, sometimes 4, with perfect stamens as many 
or twice as many as _— “ sepals (anisomerous in all 
PoLyGALACE® and so APINDACEZ) :-— 
Abas Lol wu Resity persistent; stamens and petals 
isom 
peed 3, parietal; stamens as many as sepals; petals 
often irregular ; ‘id alternate rarely opposite 
XII. Violacezx. 
Placentas free central; stamens usually twice as many as 
sepals; petals regular :— 
Leaves herbaceous, always spyoniias sepals united below 
or free; petals free, sometimes erbs 
XV. 
sei Aap 
Leaves scale-like minute, alternate; sepals free ; petals 
ape connate below; shrubs .. XVII. Tamariscinee. 
Ovary 2- or more-celled; if 1-celled Peenet ames Xantho- 
flowers regular 3—5-merous with carpels as many as sepals ; 
small diffuse plants with simple opposite stipulate leaves 
XVIIL. Elatinex. 
Seeds 1, less often 2 to each cell of fruit and either erect 
or pendulous; if more than two and attached to inner 
angle of cells (GERANIACE : Oxalidee and Impatiens) 
or pinnate leaves (Ozalis , Biophytum, Averrhoa) or with 
opposite or alternate inne lee ves and irregular flowers :— 
**Seeds pendulous :—[p- 170] 
{Flowers usually anisomerous (sepals 5, stamens 8; 
subisomerous in Salomonia) filaments connate in a 
sheath usually adnate to petals; sepals and petals 
generally irregular; ovary 1-2-locular; leaves simple 
alternate ; disk 0 [p. 170] -.-- .,.XIV. Polygalacex, 
