Note 114 — LETTERS TO MERRETT.
Reading edition
The little "Fucus," which he compares to the backbone of a fish, is probably Halecium halecinum, Lin., the "Herring-bone Coral" of Ellis, one of the most common Zoophytes on our coast. The "Abies," of which he suggests at p. 75 that this may be a "difference," is most likely Sertularia abietina, Lin., which this species resembles, but is less regularly pinnate; this may have led him to suppose that the "sprouts, wings, or leaves" may have fallen off. The Fucus marinus is most likely Fucus serratus.