4 
2 . — Stigma petaloid, umbrella like. Sarraceniacea. p. 47. 
Stigma simple, not .peculiar. 
Leaves compound. Riiizobolacea. 
Leaves simple. 
Petals not as many as the sepals. Ternstromiacea. 
Petals as many as the sepals. 
Seeds numerous. 3 
Seeds few. \ 
Stigma nearly sessile, radiating or peltate. Guttifera:. 
Stigma on a distinct style, — live lobed. Humiriacea. 
3. — Petals flat. Marcgraviacea. 
Petuls crumpled. Cistacea. p. 60. 
4 . — Carpels distinct, numerous. Magnoliacea. p. 42. 
Carpels combined into a solid pistil. More than one placenta. 
Calyx valvate in the bud. 5 
Calyx imbricated or twisted in the bud. 
Flowers in heads, having an involucrum. Chlanacea. 
Flowers separate, having no involucrum. Cistacea. p. 60. 
5. — Calyx irregular, — enlarged in fruit. Dipterocarpacea. 
Calyx regular, — not enlarged in fruit. 
Stamens distinct. Tiliacea. p. 75. 
Stamens united wholly or partially. 
Anthers one celled. Malvaceae p. 70. "/ 
Anthers two celled. 
Stamens columnar, all perfect. Sterguliacea. p. 75. 
Stamens not columnar, — some without anthers. 
Byttneriacea. 
6. — Leaves with stipules. 16 
Leaves without stipules. 
Carpels combined into a solid pistil or ovary. 7 
Carpels distinct, or solitary. 
Anthers with recurved valves. Berberidacea. p. 44. 
Anthers with longitudinal valves. 
Albumen of seeds scanty, — or none. 
Menispermacea. p. 44. 
Albumen of seeds abundant. Embryo minute. 
