Identification of morning glory

PHARBITIDIS SEMEN

[Source] This product is derived from the Pharbitis nil (L.

[Character] This product is dry mature seeds

【Microscopic identification】The powder of this product is light yellow-brown

【Character identification characteristics】

(1) It looks like orange petals

(2) There is a shallow longitudinal groove on the back, and a little umbilicus at the lower end of the ventral ridgeline, which is slightly concave

(3) The surface of Bai Chou is grayish brown or yellowish white

(4) The black surface is black and slightly shrunken

(5) It tastes pungent, bitter, and has a tingling sensation

【Microscopic identification features】

(1) It has a cone-shaped triangle, a row of epidermal cells, and a rectangle

(2) Seed coat cells are dark brown, irregular in shape, and microwave-like walls

(3) Single cells of non-glandular hairs, yellowish brown, slightly curved

(4) There are secretory cavities in the fragments of cotyledons, round or oval

(5) The diameter of calcium oxalate clusters is 10～25um

(6) The palisade cell layer is arranged by 2 to 3 rows of radially elongated cells, with a clear brilliance band on the outside

(7) The inner cell wall mucus

(8) Parenchyma cells are filled with aleurone grains and fatty oil droplets, and contain clusters of calcium oxalate
.