Tribe V
FLORIDEÆ.
Frond coriaceous or rarely membranous, flat or filiform, continuous, purple or pink. Sporidia purple, included in capsules or clustered in sori. 2310. Polyides. Frond filiform, fastigiate, cartilaginous, softish, composed of radiating fibres. Fruit, spongy warts composed of fibres supporting sporidia. 2311. Ptilota. Root scutate. Fronds compressed or plane, pinnate. Fructification; a cluster of naked granules surrounded by a linear cleft involucre. 2312. Rhodomela. Frond either flat or foliaceous, and somewhat ribbed or filiform. Fruit twofold; first, lomenta filled longitudinally with globules of sporaceous matter second, capsules with a few pyriform sporidia sessile in the capsule (blackish when dry). filled longitudinally with globules of sporaceous matter; second, capsules with a few pyriform sporidia sessile in the capsule (blackish when dry). 2313. Chondria. Frond continous, gelatinoso-cartilaginous. Fructification double; naked granules immersed in the substance of the ramuli and external tubercles. 2314. Sphærococcus. Root scutate. Frond submembranaceous or cartilaginous. Fructification uniform; tubercles or capsules. 2315. Halymenia. Frond flat or tubular, somewhat membranous. Fruit, dot-like tubercles half immersed in the lamina of the frond. 2316. Bonnemaisonia. Frond filiform, compressed, pectinate, ciliated. Fruit, capsules with pyriform sporidia fastened together in a chain-like manner 2317. Delesseria. Root scutate. Frond plane, membranaceous, with or without ribs. Fructification double, tubercles and clusters of naked immersed granules