18 
Flowers imperfect, some staminate, some pistillate. 9 
Flowers perfect, having both stamens and pistils. 
Carpels more than one. 8 
Carpel single. 
Anther valves recurved. Laurace®. p. 290. 
Anthers slit lengthwise. 
Leaves covered with scales. El®agnace®. p. 292. 
Leaves not covered with scales. 
Perianth short, segments separate nearly to the base. 7 
Perianth Ions: or tubular. 
Perianth not at all hardened. 6 
Perianth partially hardened. 
Perianth hardened at base. Nyctaginace®. p. 283. 
Perianth tube hardened. Scleranti-iace®. p. 64.f 
6. — Stamens in the points of the perianth. Proteace®. 
Stamens not in the points of the perianth. 
Ovule erect, orthotropal. Polygonace®. p. 287. 
Ovule suspended, anatropal. Thymel®ace®. p. 291. 
7. — Stamens attached to the perianth. Basellace®. 
Stamens inserted on the receptacle. 
Stamens alternate with the segments of the perianth, or nu- 
merous. Ppiytolacoace®. p. 284. 
Stamens opposite the segments of the perianth. 
Flowers with bracts. Amaranth ace.®, p. 286. 
Flowers without bracts. Ciienopodiace®. p. 284. 
8. — Seeds with albumen. Perianth colored. Embryo curved 
around the albumen. Phytolaccace®. p. 284. 
Seeds without albumen. 
Perianth not tubular, imperfect, or spathe like. 
Podostemonace®. 
Perianth tubular. 
Ovary two celled. Aquilariace®. 
Ovary four celled. Pen®ace®. 
9. — Carpels more than one, united into a solid pistil. 12 
Carpels single, or uncombined. 
