Drviston Il. GAMOPETALA. 
Floral envelopes consisting usually of both calyx and corolla, 
the petals usually more or less united into a gamopetalous corolla. 
SynopricaL Key To THE GAMOPETALOUS ORDERS. 
a. Ovary inferior. 
* Filaments and anthers distinct, leaves opposite. 
47. Viburnacex. Shrubs with simple or pinnate leaves and no stipules, 
Stamens 4or 5: stylesl or none. Fruit a 1-5-celled, 1-few-seeded 
-berry or capsule. Seeds albuminous. 
48. ubiacex. Herbs or shrubs with opposite, stipulate or verticellate 
leaves. Flowers regular, 4-5-merous. Style 1, entire or cleft. Fruit 
dry, indehiscent, 2-4-celled, 2-4-seeded. Seeds albuminous, 
49. Valerianacee. Herbs with simple or pinnate opposite leaves, with- 
out stipules. - Flowers irregular. Stamens 1-4; fewer than the lobes 
of the corolla. Ovary 3-celled, becoming a 1-celled, 1-seeded achene- 
like fruit. Seeds without albumen. ; 
50. Dipsacacee. Herbs with opposite or verticellate leaves, without 
stipules and capitate involucrate inflorescence Stamens 2-4; as many 
as or fewer than the lobes of the corolla. Ovary simple, 1-celled, 
with a single suspended ovule. Seeds albuminous. 
-* * Stamens 5; anthers or filaments united into a tube around the 
2-cleit or entire style. Leaves various, without stipules. 
51. Composite. Herbs, shrubs or trees with opposite or alternate 
leaves without stipules and 1-numerous flowers in a capitate cluster, 
surrounded by an involucre. Calyx reduced to a pappus or obsolete. 
Filaments mostly distinct. Fruit an achene.. Seeds without albu- 
men. 
52. Lobeliaceew. Herbs with alternate, simple leaves and irregular 
scattered or racemose flowers. Filaments united: anthers sometimes — 
distinct. Fruit a 1-2-celled, many-seeded capsule; more or less infe- 
rior. Seeds with fleshy albumen 
* * * Stamens distinct. Leaves alternate. 
538. Campanulacee. Herbs with simple leaves, without stipules. Flow- 
ers regular, 5-merous. ~tyle one, 2-5 lobed. Fruit a 2-5-celled,many- 
seeded capsule with placente in the axis. Seed with fleshy albumen. 
b. Ovary superior or nearly so, compound. 
* Corolla regular. Stamens not didynamous. 
+ Fruit 5-many-celled. 
54. Vacciniacee. Shrubs with simple leaves without stipules. Flow- 
ers regular, 4-5-merous. Anthers opening by terminal pores. Style 
one, Fruit a 4-10-celled many-seeded berry. 
55. Ericacee. Shrubs with simple, mostly alternate leaves without 
stipules. Flowers 4-5-merous. Styles one. Anther-cells opening by 
