Crassulaceae

1 new section of the Geminal Leaf Plant

Gang. Herbs or small shrubs, stems and leaves. Leaves without support leaves, mutual, pair or rotation, single out more than the full edge, very thin feather-like strip cracking. Flower sequence multi-clustered umbrella-shaped or re-conjugation-shaped umbrella-shaped, spike-shaped and conical. Flowers of rare male and female species, radiation symmetry, generally
5
base, but between
3

30
base changes. The epithrea is divorced or the lower part is combined, each of which has a scaly gland; The fruit isfruit. Pollen grain near-spherical to long spherical, with
3
hole. Chromosomal base heterogeneity. Due to the inconsistent criteria of the division, the number of species is variable,
500

1500
species. Mainly distributed in the northern temper belt and tropical
dyeal
region, south of eastern Asia, Mexico, South Africa and the Mediterranean region more species, Oceania is almost non-producable, South America is very few. China has
11
more
than 240
species, distributed several times throughout the country.The
tissues of the meaty leaves of undergraduate plants are more than
thin-walled tissues, containing a large amount of cell fluid, calcium oxalate and free
organic
acids, most of which also contain alkaloids, alcohols, flavonoids, steroids, sugars,
vitamins
C
, trace elements and other
compounds
. The steaming effect is regulated by the wax secreted by the skin and the sinking pores. Self-pollination or insect-borne pollination. Jingtian genus flower flat, a variety of insects can reach the honey glands; Qinglock dragon genus, Shilian genus, etc. only a round of male, but pre-familiar; Jingtian genus, Vasong genus, etc. have more than
2
rounds of male, early release of pollen on the male, the petal male temporarily closed (see figure), until the column head fully matured before cracking. The weather was clear, the insects clustered, the pollen dispersed before the column head was ready to be powdered, the sky was cloudy, and the pollen remained in the lobes waiting for the column head to mature. Seed reproduction and nutritional reproduction, the latter being particularly common. Jingtian plant body thick meat, more cultivation for viewing. Such as the genus of gallant cuisine, the genus of ground roots, the genus of blue lock dragons, the genus of purple scenery, the genus of jingtian, etc. Some kinds of medicinal applications of the Vassong genus, the Red King Genus, the Purple King Genus and the Jingtian Genus, some of which have antiviral performance. Undergraduate and tiger ear grass is closely related, the main difference is the undergraduate fat flesh body and the core skin base with scaly glands. The root vegetable genus (
Penthorum
) belongs to the original undergraduate, because of the leaf membrane texture, the epithetular and glandless, the French scholar
P
.
van
as an independent section , the
Penthoraceae
. Most scholars in modern times have included it in the original genus of tiger-eared grass.。since

1930s
, according to embryos, many taxonation scholars have agreed to divide undergraduates into
6,
sub-sections:East Java Grass Yako
6
genus, and China has the East Paw grass genus. East Claw grass is produced in Yunnan, Hebei, Heilongjiang; Flowers

5
, and males only
1
rounds, the same number as petals, how many petals. Leaves to life. Chromosomal base
x x 7
,
8 gallant yakohas
3
genus, China has: (1) gallant genus, of which garan vegetables are produced in Yunnan, China to Taiwan. Flowers stand upright,
4
the base, corolla tube or high-footed disc-shaped enses. The male
2
,
2
times the number of crown cracks, and the filament is born in the middle or upper part of the crown tube. Single-leaf pair. Chromosomal base
x x 17
,
18
. Multi-cultivation for ornamental; medicinal can be detoxifying heat, dispersal to stop the bleeding. Sub-plant, sow and reproduce. (2) Landing root genus, where floor rooting, China is distributed from Yunnan to Taiwan. Flowers often sag, flower silk is born in the base of the corolla tube. Single-leaf pairs, rotations, or plume-like compound leaves. Chromosomal base
x x 12
,
20
. The leaves contain straight-chainane, straight-chain alcohols and apple acid, citric acid, vitamins, quercetin and glycosides, jaundols, etc. For medicinal purposes, can detoxify, detoxify, live blood, pain relief, detoxification, raw muscle. It is also cultivated for viewing.。 Zhonghualian Yako has6
,
is not produced in China.。 There are 5 genus ofof
grass
, which are not produced in China.。 Jingtian Yakohas
8
genus, China has: (1) Wasong genus, of which Wasong, distributed throughout the country; Flowers are
5
base, both sexes; males
2
wheels; petals separated, carried out, flower-ordered spike-shaped conical; and yelien-shaped. Chromosomal base
x x 12
. Contains a large amount of organic acids (grassic acid) and a small amount
vitamin
. Whole herbal medicine, has the effect of clearing heat, detoxifying, hemosticizing, wetting and detoxifying. (2) Kong yan grass genus (
Kongnia
). (3) Red King Genus. (4) Valian genus (
Rosu-laria
), flowers
6
to
8
base, with short crown tube,
2
rounds. The seat of the yelien. (5) Purple Sky, of which Zijing Tian, distributed from southwest to northeast; Flower
5
base; petal separation; male
2
wheel; heart skin separation, upright, narrow base with short handle. Chromosomal base
x 12
,
10
,
11
. Contains Jingtian sugar, sucrose, fructose and apple acid, citric acid, glyceric acid, amber acid and β
-
Jingtian alcohol, glycol, inositol and so on. Medicinal use has the effect of wind clear heat, active hemorrhation, hemorrhation and pain relief; (6) Jingtian genus, where the potted grass, distributed throughout the country; Flowers
5
base, thin
4
or
6
to


9
base, both sexes

; The chromosomal base is heterogeneity (
x 4

7
). Contains alkaloids, organic acids, sugars, flavonoids, alcohols,
protein
, starch. Many kinds of medicinal, have the functions of heat, detoxification, hemostation, anointment, analgesy, cold, gas and so on. (7) False landscape genus. (8) Shilian genus, of which Shilian, distributed in Tibet, Yunnan, Guizhou, Guangxi, Zhejiang, Shaanxi. The grass and rocks of the hillsides are also found on the roofs and walls. Flower
5
, male
1
wheel with the same number of petals; Kieren leaf lotus seat. Whole herbal use, has the effect of clearing heat, detoxifying, hemostic, pain relief.。 There are 5 genusthe
of
, which is not produced in China.。