Fig. 157. Chondrus crispus.

Fig. 157. Chondrus crispus.

A. Transverse section of the frond (magnified).
B. Longitudinal section of the frond (magnified).
a. Outer strata.
b. Medial strata.
c. Inner stratum.

This image is from Carrageen in Pereira's Elements of Materia Medica and Therapeutics, 1854.