Pl.cell.aph. 2. THALASSIOPHYTE. 38.Verteb. 339 
Tufts stiff, close, blackish brown, 2 or 3 inches high, not 
adhering to paper; jotzts composed of an internal annular 
series of interrupted cells. 
C. Coratsipem. Thallus threadshape, jointed; axis 
membranaceous, fibrous, continuous; lark cellular, creta- 
ceous, jointed ; ‘hece terminal or lateral. Marine. 
XIV. 39. JANIA. Teaniered: Jania. 
Thallus threadlike, hairlike, forked, jointed; joints cy- 
lindrical; axis horny; lark thin, chalky. 
1. Jania rubens. Reddish jania- 
Joints of the stem roundish, of the forks clubbed; thece 
polymorphous, appendiculated, or naked. 
Jania rubra, Lamouroux Zooph. 272. 
Sea-shores. 
8. communis. Branches long; thece 0. 
Corallina rubra, Ellis Corall. 64. 
0. cristata. Thece appendiculated; appendix truncated. 
» Corallina cristata, Ellis Corall. 65. 
¢. spermalophoros. Thece very numerous, broad; ap- 
pendix long, bristlelike. 
Corallina spermatophoros, Ellis Corall. 66. 
2. Jania corniculata. Horned jania. 
_ Joints of the stem and branches roundish, rather com- 
pressed in the upper part, 2-horned. 
Corallina corniculata, Ellis Zooph..121 3; Corall. 65. 
Sea-shore, and on marine plants. 
Appendices or horns at the top of the joints vary much 
in length, and are sometimes jointed. 
XV. 40. CORALLINA. Pliny. Coralline. 
Thallus threadlike, jointed; branches three-forked ; axis 
fibrous, horny; lark chalklike, thick, cellular. 
1. Corallina officinalis. Shop coralline. 
Three-forked, greenish; branches pinnate; pinnules two- 
rowed ; joints of the stem rather compressed, wedgeshaped, 
ef the twigs cylindrical; thece terminal, capitate. 
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