Spora Lygodii
Source
The spores of Lygodium japonicum (Thunb.) Sw., and several other 
species
of the same genus, family Logodiaceae.
Characteristics
The spores appearing as powder, yellow, light and smooth, with crackling
sound and sparks when burnt. Vine herbaceous Fronds growing oppositely
from the short branch which is 3-5 mm long; sterile fronds bipinnate,
pinnules palmate or 3-lobed; fimbriate sporangial spikes growmg at the
margin of fertile pinnules. Sweet in taste, cold in nature, and attributive
to urinary bladder and small intestine channels.
Indication
Promote diuresis and relieve stranguria, clear away heat and toxic material:
For stranguria of heat type and that caused by urinary stone, 
complicated
by hematuria and chyluria; leucorrhagia, edema, mumps and sorethroat.
External use for eczema.
Pharmacological
Action
Its 50% decoction inhibits the growth of Staphylococcus aureus, Bacillus
typhoid, Pseudomonas aeruginosa and Bacillus coiL
Administration
Decoction: 6-12g (wrapped with cloth in boiling).
External use: Appropriate amount.