Casuarinaceae

1 new department of the Gemin-leaf plant,
Maya
. Evergreen trees or shrubs, often have sagging branches, branches on each section with a round
4
to
16
pieces of scaly leaves, the base often combined into a slug, the end of the swim Away from the toothy, like a wood thief, between the sections there is a trench, the base of the ditch and both sides have pores and green
tissue
, the gap between the convex strip into a self-thick membrane tissue, obviously indicating that the plant belongs to dry nature. Flower mono sex, male and female or different strains, flowerless, male peanuts in the ends of the small branches of each round of the leaf, each round has several males, extended outside the leaf, flower medicine large shape, pollen particles often flat spherical, with
2
to

or
3
to
5
holes, the outer layer is thicker than the inner layer, each
1
male represents
1
male flowers, the base has
3
to

4
small slivers, consisting of each round of male flowers
1

solu flower sequence
; There are
1
females and
2
small slivers, i.e.
1
female flowers, females synthesized by
2
centikin, rear
1
The heart skin is squeezed and degraded, the front
1
the heart skin room has
2
embryo beads, the base of the flower column is extremely short, divided into
2
long branches (or columns) out of the outside, by wind pollination. The fruit flower sequence all turned into wood,
2
pieces of small cocoons, hidden with thin wings of small nuts, and finally opened, such asfruit cracks, to reveal the fruit. Chromosomal base
x

11
,
12
,
13
. Catheter molecules with single holes, holeless catheters have obvious rim lines, with thin-walled tissue, wood rays are heterocellular, single column and complex column mixed, some of which are assembled into a wide and distinct mixing line, wood thin-walled tissue is separated (guide) pipe, scattered, into short strips. The sieve tube
"
S"-shaped body.there are
65

65
wood. Located in southeast Asia, northern Australia and Polynesia and other places. Among them, there are
45
species of
genus, the introduction of cultivation in southern China has been
, fine
species. Undergraduates produce important wood, which is also used as a road tree. Among them, such as jute wood hard, there is the South China Sea iron wood, native to Queensland, Australia and other places, up to
29
meters.。