White line potato

[Pinyin] Bái Xiàn Shǔ

[Alias] SFAS, mountain tortoise, a drop of blood.

[Source]
Medicine-based sources: the white line Menispermaceae plant potato tubers.
Latin name of plant and animal fossil: Stephania brachyandra Diels.
Harvesting and storage: year-round excavation, removal of fibrous roots, washed, cross-section or longitudinal slices, dried in the sun.

[Original form] white lines potato deciduous herbaceous perennial vine. Root agglomerate. Branches slightly twisted, are ruled, without hair. Leaves alternate; petiole longer than the leaves, or nearly as long, shield-shaped with the students; leaves triangular or slightly rounded, length, width nearly equal ,8-18cm, apex obtuse or sometimes with a short tip, base nearly truncated or slightly rounded, the edge with wavy coarse teeth or nearly entire, glabrous or slightly below on the veins were slightly pubescent; palmate veins are usually up and down the 5, the following processes, net pulse small, thin paper. Flowers small, unisexual, dioecious; re umbrella cyme, axillary or axillary on short branches on; male inflorescence slightly delicate, umbrella stems often 5-7, a little small cymes dense; Male flowers: sepals 6, arranged in two, wide obovate or obovate, 1.7-2.2mm, outer width of 1-1.3mm, within the wider wheel; petals 3, fleshy, long 0.8-lmm, width 1.5-1.9mm, both sides of the edge of the volume, arranged together like tweezers; poly drug stamen length 0.5-0.7mm; was the first female inflorescence close-like, flowering stalk and a small umbrella seen cymes stem; Female flowers: sepals usually 1, ovate-lanceolate, about lmm; petals 2, nearly round, about 0.6mm. Nut width obovate, endocarp about 9mm, 4 rows back, carved cylindrical pattern, the end of the expansion was first shaped, about 14-15 pieces per line, placenta tracks not perforation. Flowering from May to June, July and August fruit.

[Habitat distribution]
Environment: Born in forest valley side.
Resource distribution: distributed in southeastern Yunnan.

[Character]
1 character identification tuber spherical or irregular lumps, diameter 10-40cm. Surface gray-brown to dark brown, with irregular crack turtle, many scattered small bumps. Goods, mostly cross-section or longitudinal slices, thickness 0.5-lcm; fresh cut surface pale yellow to yellow, yellow or darken after placement. Section can be seen tendons pattern (juniors Vascular) arranged in concentric circular ring. Gas micro-, bitter taste.
(2) microscopic identification and a large group of stone cells in the cortex and more constant ten groups arranged in a wide ring intermittent; oblong or rectangular stone cells, diameter 40-100 (-160) μm, short diameter 40-80 (-100) μm, and a class of square or round stone cells, diameter 50-70μm, thickness. Parenchyma cells containing numerous calcium oxalate crystal rods, long 7-25μm, and a few thin lamellae and needle crystal; starch grains single grain, round or oval, diameter 3-30 (-40) μm, umbilical point linear, crack-like, punctate; a small number of complex particles from 2-4 grains.

Chemical Composition】 【root tubers with white lines set isocorydine (isocorydine), content of 1.48%, according to available information, the genus Stephania content of different purple lay only 1% of this one, also still with the left Rotary tetrahydro palm leaf Tet (tetrahydropalmatine), bicuculline (dicentrine), Sinomenine (sinomenine), Corydalis tuber base (corytuberine), acutum alkali (sinoacutine), dehydroepiandrosterone bicuculline (dehydrodicentrine), Boer set different base (isoboldine), 8,14 - dihydro spend papaverine (8,14-dihydrosalutaridine), N-methyl-six split-base (N-methyllaurotetanine), Stephania spent the first base (cepharanthine), round Ning rattan ring base (cycleanine), L-curare bases (curine) and high A Luomo spiritual base (homoaromoline) and other alkaloids.

Physical and chemical identification [identify] (1) of this product meal 1g, ethanol 10ml, cold soak overnight, filtration. Filtrate evaporated and the residue dissolved in 4ml diluted hydrochloric acid, filtration. Filtrate 1ml, plus improved test solution 2 drops of potassium bismuth iodide, producing a large number of orange precipitate; alternative filtrate lml, potassium iodine test solution 2 drops of mercury, producing a large number of yellow-white precipitate. (Check the alkaloids) (2) medicine new section, set UV light (254nm) were observed, which was purple fluorescence.

[Bitter] taste; cold; a small drug

】 【Go through the liver; stomach

【Indications】 qi and blood circulation; Qufeng pain; detoxification. The main stomach; Fengshibitong; bruises; dysmenorrhea; carbuncle swollen boils poison; eczema

Dosage Oral: Jian Tang ,1.5-3g; reduce it into powder and clothes. Topical: the amount, trace deposited or transferred into powder deposited.

[Excerpt] "Chinese Materia Medica"
http://chinese-herbal-medicines-directory.blogspot.com/