CONSPECTUS OF PRINCIPAL GROUPS OF PLANTS AS ARRANGED IN THIS FLORA
Reading edition
GYMNOSPERMÆ (p. 48). Ovules naked, not enclosed in an ovary, no calyx or corolla.
Plants palm-like with fusiform or globose stem; leaves pinnate; flowers in cones.
Cycadaceæ (p. 48).
Whip-like shrub or climber with more or less whorled branches; leaves scale-like, connate at the base, flowers spicate.
Gnetaceæ (p. 48).
ANGIOSPERMÆ. Ovules enclosed in an ovary; calyx or corolla usually present.
Dicotyledones (p. 49). Embryo with 2 seed-leaves (cotyledons). Leaves typically net-veined. Vascular bundles of stem usually in a ring. Flowers mostly with parts in 4’s or 5’s—for key to families of this group see p. 16.
Monocotyledones (p. 365). Embryo with only 1 seed leaf. Leaves typically parallel-nerved. Vascular bundles of the stem scattered. Flowers mostly with parts in 3’s—for key to families of this group see p. 45.