Medicinal Fritillaria cirrhosa is taken from bulbs of Liliaceae plants, such as Fritillaria cirrhosa, Fritillaria purpurea, Fritillaria Gansu and Fritillaria Haloxylon.
Among them, Bulbus Fritillariae Cirrhosae, Bulbus Fritillariae Cirrhosae and Bulbus Fritillariae Gansu are divided into pine shell and green shell according to different characters. One of the characteristics of pine shell is "holding the moon in your arms", that is, a large arc-shaped Fritillaria petal holds a thin one. When buying pine shells, the ones with small and full particles, white color, pointed mouth and round ass are the top grade, especially the ones with pea size are the best, commonly known as "pearl shell". The mussel is oblate, similar in size, relatively clasped, cracked at the top, with 2-3 inner heart buds, small scales and thin cylindrical stems, which is commonly called "Guanyin crossing his hands".
The furnace shell is the bulb of Fritillaria ammodendron, which is mainly produced in the northwest and is used by Tibetan medicine.
As for the price, different regions are different, so it's hard to say, so you can ask several local pharmacies and choose the best one.
The above information is for reference only, I hope it will help you, and the full-time staff of the pharmacy should be able to provide more abundant answers.