390 OXXX. AROIDER. 
as “ Duck-weed ;” with or without a root; their body frond-like, lenticu- 
lar, rarely nerved, and with a sort of petiole. Flowers minute, bursting 
from a slit in the frond.—Z. minor, at least, occurs in South Africa. The 
5 species of which the Linnzan genus consists, have been recently distri- 
buted into 4 genera, based on very slight characters. 
Orper CXXXI. TYPHACEA, 
Male and female flowers on distinct spadices of the same 
plant, closely crowded ; the males reduced to a nude stamen, 
many barren; the females to a pistil. Fertile stamens soli- 
tary or 2-4 together and connate by their filaments, mixed 
with more numerous scale-like staminodia ; filaments elongate; 
anthers 2-celled, erect; cells parallel. Pistils sessile or 
stalked, each surrounded by staminodia. Ovary 1-ovuled ; 
ovule pendulous ; style 1; stigma tongue-like, long, unilateral. 
Fruit 1-seeded, dry; embryo in fleshy albumen.—Marsh or 
aquatic. Stem simple or rarely branched, terete, leafy. Leaves 
scattered, narrow, linear, sheathing at the base. Spadices 
superposed at the the apices of the stem or branches, globose 
or cylindrical ; the lower female, upper male. 
1. TYPHA, Linn. 
Spadices 2, cylindrical, the male above the female. Fertile 
stamens 2—4 together, connate by their filaments. Ovaries on 
long stalks ; style long, capillary — Kunth, 1. c. p. 90. 
Erect, reed-like marsh plants, with creeping roots. Stem tall, terete, 
solid, nodeless, leafy. Leaves with long sheathing bases, linear. Spadices 
superposed on the end of the stem.—T. latifolia (the Reed-Mace), a native 
also of Europe, N. Asia, and America, is common in the colony by water- 
courses, etc. 
Orpen CXXXII. PALMA. 
Flowers bisexual or polygamous, on simple or branched 
spadices. Perianth 6-parted, persistent, in a double row; the 
3 outer segments often smaller, the 3 inner sometimes deeply 
connate. Stamens in the base of the perianth, usually 6, sel- 
dom 3; in a few cases indefinite. Ovary 1-3-celled or deeply 
3-lobed ; ovules mostly solitary, very rarely in pairs, erect ; 
styles as many as the cells, very short, mostly cohering. Fruit 
berried or drupaceous, 3-1-celled, 3-1-seeded. Embryo lodged 
in a special cavity of the cartilaginous, horny or oily albumen. 
The Palms, the great ornaments of tropical scenery, have been justly 
