AMONG THE WILD FLOWERS. 
XVII. 
Tue Linn. Class XVIII., Polyadelphia, is re- 
presented by only one genus, [/yfericum, St. 
John’s-wort, from which the Nat. Ord. Hypert- 
cCAcEH is named, The flowers have their 
stamens, which are numerous, connected at 
the base in 3 or 4 sets. 
In many of the plants the leaves have pel- 
lucid dots, as though punctured with a needle 
point. LZ. perforatum exhibits this peculiarity 
more than some of the other species; it isa 
very common plant. In wet places you will 
find 7. guadrangulum, or tetrapterum, with a 
4-angled stem. 7. elodes, Marsh St. John’s- 
wort, is a pretty plant found in spongy bogs, 
with reddish stalked glands on the sepals. Z. 
humtfusum is prostrate on the ground, sending 
out slender stems and small yellow flowers. 
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