Aristolochiaceae

the 1st department of the Geminal Leaf Plant
Magnolia
.herb or vine shrub. Leaves, the base of the normal heart-shaped, full edge or
3
to
5
, often oil points. Flowers single- or compositional, conical, umbrella, umbrella room flower sequence, raw or born on old stems; Bell-shaped or bottle-shaped, which has a shrink neck, often tweezers, upper petals, eaves often
3
cracked or extended to one side into a tongue piece, cleavage joint arrangement. Males
6
to the majority, separated or combined with the flower column to produce a joint column, sub-room or semi-lower position,
4
to
6
room, the embryo beads are mostly born on the central axis fetal seat.fruit, inter-chamber cracking, seeds slightly flat, blastocyst rich, embryo small. Pollen grain near-spherical, no germination hole, less single groove, the outer layer of the outer wall and its inner layer thickness is equal, the surface is rough or granular, mesh or negative mesh. Chromosomal base
x 6
,
7
,
12
. A total
8
species
400

species, mainly produced in tropical and subtropical regions other than Australia, South America is particularly prosperous, temperage
minorit
y
; Line fruit bell genus (
Thottea
), horseshoe incense genus (
Saruma
)
4
genus,
70
species, in addition to a few regions, several produced throughout the country, of which horseshoe incense genus is a Chinese-owned single genus.born in the forested wetlands or sloped thickets of mountain broad-leaved forests. Nectar-free glands, with bright colors and the smell of decay to lure small flies to tsetse powder; females first mature, pollination before the flowers are raised and the eaves open into a wide mouth, small flies easy to enter thetube, pollination after the column head and tube hard hair shrinkage, before revealing cracking potions so that small flies with pollen, and then the flower terrier bent down to make the flowers drooping and shut the tube.most types of undergraduates such as fine Xin, gold earrings, Du Heng, horse bells, wide self-defense, horseshoe incense, etc. are commonly used Chinese medicine. The main genus horse bell contains horse bell acid, horse bell ketone, horse bell and other ingredients, anciently used in childbirth analgesic and anti-cancer. In addition, there are
debilic acid
), seasonal ammonium alkaloid, magnolia (
magnoflarine
) and
cyclanoline
), some of which have a blood pressure-lowering effect. Most species of fine sin contain volatile oil, the main components are methyl clovesic acid (
methylengenol
), camphor oil (
safrole
), fine fennel, etc. (
asary) lkelon
), used in the manufacture and manufacture of antiseptics for fragrances, in addition to
linalool
),
asatone
) and alkaloids with strong heart effects. There are also ornamental plants used as potted plants and scaffolding.undergraduates and big flowers and grasses are placed in the
(
Aristalochia-les). Its kinship is different from scholar's opinion,
C
.
E
. Bessie and others believe that the more evolutionary group evolved from
Rosales
, while more scholars agree with
J
. Hutchinson and
R
.
von
's opinion that it was a more primitive group. Undergraduate more primitive horseshoe fragrance genus, with herb characteristics, perennia flowers, radiation symmetry, flowers
2
layers, separation of the skin,
2
round males, pollen grains with a single groove, leaf pores without side-guard cells, and hairclass is very similar, and on behalf of the more evolved undergraduate horse bell genus stems with a wider wood ray, may also be through self-defense, evolution from the small python.。