KEY TO THE FAMILIES 35 
: 10. Calyx and corolla similar, more or less united; 
. stamens somewhat adnate to the perianth. 
. 22. Pontederiaceae (p. 141) 
7. Ovary inferior; plants with large fleshy fruits, and elon- 
gated, spiny-toothed leaves........ 20. Bromeliaceae (p. 1386) 
6. Endosperm fleshy, cartilaginous, or bony. 
7. Ovary and fruit superior.................... 23. Liliaceae (p. 141) 
7. Ovary and fruit inferior or partly so. 
8. Stamens 6. 
9. Ovary 8-celled; leaves simple, entire. 
10. Erect herbs with parallel veined leaves and perfect 
9 Mewes lala 24. Amaryllidaceae (p. 145) 
10. Twining or climbing vines, often spiny, with uni- 
sexual flowers and netted veined leaves. 
26. Dioscoreaceae (p. 151) 
9. Ovary I1-celled; leaves netted-veined, compound or 
palmately lobed.................... 25. Taccaceae (p. 150) 
8. Stamens 3; leaves narrow, often equitant. 
27. Iridaceae (p. 152) 
5. Flowers very irregular; terrestrial plants. 
6. Fruit fleshy, indehiscent, or capsular and with small to 
medium sized seeds. 
1. Fertile stamens 6.....:..:...cije5eia0 28. Musaceae (p. 1538) 
7. Fertile stamen 1. 
8. Anther 2-celled; calyx tubular or spathe-like. 
29. Zingiberaceae (p. 155) 
8. Anther 1-celled, borne on the margin of a petal-like 
filament; calyx of free sepals. 
9. Ovules many; flowers showy, bright-colored, large. 
30. Cannaceae (p. 160) 
9. Ovules solitary; flowers mostly small, white. 
31. Marantaceae (p. 163) 
6. Fruit capsular; seeds very minute, almost dust-like; epiphytic 
or terrestrial plants, sometimes saprophytic. 
32. Orchidaceae (p. 164) 
B. Dicotyledoneae 
1. Corolla none, or the perianth-segments all alike, or the perianth entirely 
1 SER GIS A aS POE VR elias a hte eee eM eT Bee 1. Apetalae 
(Incompletae) 
‘1. Calyx and corolla both present, the corolla of distinct and separate 
EN Se OLDIES PES PE id ES 2. Choripetalae (p. 37) 
(Polypetalae) 
1. Calyx and corolla both present, the petals more or less united. 
3. Gamopetalae (p. 42) 
(Sympetalae) 
