Thistles—Tubular florets; spiny leaves. 202 
Asters—Blue or purple rays. 182 
Robin Plantain—Purple rays . 191 
Chicory—Blue rays, notched at tip. 206 
PINK AS THE CHIEF FLOWER-COLOR. 
Persicaria—Tiny, in slender spikes. 59 
Steeplbush—Steeple-like cluster . 84 
Red Clover—Trifoliate; round flowerhead. 94 
Twinflower—In pairs; crimson inside. 171 
Dogbane—5-toothed, bell-shaped; spreading . 144 
Arbutus—Creeping; 5-parted, fragrant. 131 
Milkwort—Round scaly heads; small leaves. 104 
Fringed Polygala—2 wing-like sepals. 103 
Pogonia—Solitary; broad, crested lip. 53 
Calopogon—Several; fringed leaf at top. 52 
Arethusa—Solitary; broad crested lip; erect. 52 
Bouncing Bet—5-parted, deeply lobed. 63 
Spring Beauty—5-parted; grass-like leaves. 65 
214 
