82 KEY TO PLANTS. 
Ovules in each cell more than 2. Flowers 
regular. Herbsorundershrubs. Leaves 
undivided, stipulate. Elatineae. 
104 (a) Styles 3-5, free or united at the 
base, filiform. Flowers hermaphrodite. 
Leaves exstipulate. Cotyledons dis- 
tinctly developed, not very thick. Seeds 
without an aril. Leaves herbaceous. 
Hyperievnede. 
(2) Style wanting, or 1, entire or cleft at the 
top, or styles several, short and thick, 
rarely filiform, but then flowers (as 
usually) polygamous and leaves stipu- 
late. Cotyledons thick and fleshy, or 
very small, or wanting. Seeds usually 
furnished with an aril. Leaves most 
frequently coriaceous. Trees or shrubs 
with a resinous juice. Tropics. 
Guttrferae. 
105 (a) Leaves stipulate.** Flowers hermaphro- 
dite or polygamous, very rarely uni- 
sexual, and then with 4-5 sepals, 4-5 
petals, and one undivided style or 1 
sessile stigma. 106. 
* Compare some Euphorbiaceae with 6 or rarely more, 
unequal perianth-leaves, unisexual flowers, and several 
free or partially united styles. 
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