Fig. 156. Chondrus crispus.

1. Plant with sori (natural size).
2. Segment with sorus.
3. A segment and sorus vertically divided.
4. Seeds or spores.
5. Tetraspores from the sorus (magnified).

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

Fig. 156. Chondrus crispus.