KEY TO SPRING FLOWERS 
PAGE 
Stamens alternate with the corolla lobes, attached be- 
tween the lobes. 
Pistils 2, united only by the styles or stigma; juice 
milky. 
Stamens separate; without hooded appendages. 
APOCYNACEZ. -116 
Stamens united around the stigma; flowers with 
hooded appendages between the corolla and the 
stamens. ASCLEPIADACEZ. .117 
Pistil only 1; ovary 1—4-celled. 
Ovary not deeply 4-lobed or 4-parted. 
Leaves opposite or whorled; corolla salverformed. 
POLEMONIACE2. _105 
Leaves alternate. 
Twining herbaceous vines. CONVOLVULACE2&. _107 
Herbs not twining. 
Stigmas or styles 2-3. 
Ovary 3-celled; stigmas 3. 
POLEMONIACE2. _105 
Ovary 1 or 2-celled; stigmas 2. 
HYDROPHYLLACEZ2. -109 
Stigma and style 1; fruit a berry or capsule; 
flowers never bracted. SOLANACEZ. -113 
Ovary deeply 4-lobed or 4-parted, and separating 
into 4 nutlets on ripening. 
Leaves alternate. BORAGINACEZ. -109 
Leaves opposite. 
Corolla lobes usually 5; foliage not scented. 
VERBENACEZ. _125 
Corolla lobes 4; foliage strongly scented. 
LABIATZ. _126 
Flowers irregular, usually evidently 2-lipped, sometimes 
nearly regular. 
Ovary deeply 4-lobed; foliage usually strongly scented. 
LABIATZ. _126 
Ovary not deeply 4-lobed; 4-celled and 4-seeded, break- 
ing up into four nutlets at maturity; foliage not 
scented. VERBENACEZ. .125 
Ovary not. 4-lobed, 1 or 2-celled; seeds many. 
Ovary 2-celled; flowers bracted. 
SCROPHULARIACEA. .119 
Ovary 1-celled; parasitic plants with leaves reduced 
to scales. OROBANCHACEZ. -123 
Ovary inferior. 
Flowers not in involucrate heads, calyx normal. 
Leaves opposite or whorled. 
Herbs; corolla lobes and stamens 4. RUBIACEZ2. _169 
Shrubs or woody vines; corolla lobes and stamens usually 
. CAPRIFOLIACEA, _171 
Leaves alternate. 
Herbaceous vine with tendrils. CUCURBITACEZ. -157 
Erect herbs; stamens 5. CAMPANULACEA. -172 
Flowers in dense heads surrounded by an involucre, calyx 
represented by pappus or wanting. ASTERACE. -173 
