GOLD THREAD. 65 
MEDICAL REFERENCES. 
Helleborus trifolius, Bart. Coll, N igella—Curier, Amer, 
Acad, i. 457.—Tacner, Disp. 283. 
PLATE Y., 
Fig. 1. Coptis trifolia with the root, leaves, flowers and last 
year’s fruit. 
Fig. 2. Nectaries, stamens, and pistils magnified, 
Fig. 3. Section of a capsule shewing the seeds. 
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