A HISTORY OF NORFOLK MELANOSPERMEiE FuCACEit Halidrys siliquosa, Lyngb. Cystoseira ericoides, Ag. — granulata, Ag. — barbata, Ag. — fibrosa, Ag. Pycnophycus tuberculatus, KUtt. Fucus vesiculosus, Linn. — ceranoides, Linn. — serratus, Linn. — nodosus, Linn. — canaliculatus, Linn. Himanthalia lorea SPOROCHNACEi€ Desmarestia ligulata, La. - — aculeata. La. — viridis, La. Arthrocladia villosa, Duby. Sporochnus pedunculatus, Ag. LaminariacEj* Alaria esculenta, Grev. Laminaria saccharina, La. — phyllitis, La. Chorda filum, La. DlCTYOTACEi* Cutleria multifida, Grev. Taenia atomaria, Grev. Dictyota dichotoma. La. Punctaria latifolia, Grev. — plantaginea, Grev. Asperococcus echinatus, Grev. CHORDARIACEi* Chordaria flagelliformis, Ag. Mesogloia virescens, Carm. Elachista fucicola. Fries. — scutulata, Duby. — velutina. Fries. Myrionema strangulans, Grev. ECTOCARPACE^ Cladostephus verticillatus, Ag. — spongiosus, Ag. Sphacelaria scoparia, Lyngb. — cirrhosa, Ag. Ectocarpus siliculosus, Lyngb. — fasciculatus, Harv. — tomentosus, Lyngb. — litoralis, Lyngb. — granulosus, Ag. — brachiatus, Harv. — mertensii, Ag. Myriotrichia filiformis, Harv. RHODOSPERME^ Rhodomelacea: Rhodomela lycopodioides, Ag. — subfiisca, Ag. Bostrychia scorpioides, Mont. Rytiphlaea pinastroides, Ag. RHODOMELACEil [continued] — Rytiphlaea thuyoides, Harv. Polysiphonia urceolata, Grev. — formosa, Suhr. — elongata, Grev. — fibrillosa, Grev. — nigrescens, Grev. — atrorubescens, Grev. — furcellara, Harv. — fastigiata, Grev. — byssoides, Grev. Dasya coccinea, Ag. Laurenciace^ Bonnemaisonia asparagoides, Ag. Laurencia pinnatifida, Lamour. — dasyphylla, Grev. Chrysemenia clavellosa, J. Ag. Chylocladia ovalis, Hook. — kaliformis, Hook. — articulata, Grev. CorallinacEj* Corallina officinalis, Linn. Jania rubens, Lamour. Delesseriace^ Delesseria sanguinea, Lamour. — sinuosa, Lamour. — alata, Lamour. — hypoglossum, Ag. — ruscifolia, Lamour. Nitophyllum punctatum, Grev. — gmelini, Grev. — laceratum, Grev. — uncinatum, J. E.G. Plocamium coccineum, Lyngb. Rhodymeniace^ Rhodymenia bifida, Grev, — laciniata, Grev. — palmetta, Grev. — ciliata, Grev. — jubata, Grev. — palmata, Grev. Gracilaria confervoides, Grev. Hypnea purpurascens, Harv. Cryptomeniace.* Gelidiimi corneum, Lamour. — var. crinale Chondrus crispus, Lyngb. Phyllophora rubens, Grev. — membranifolia, J. Ag. Gymnogongrus plicatus. Kg. Polyides rotundus, Grev. Furcellaria fastigiata, Lamour. Dumontia filiformis, Grev. Halymenia ligulata, Ag. Ginnania furcellata, Mont. Naccaria Wiggii, End. CeRAMIACEjE Ptilota plumosa, Ag. — sericea, Gmel. Ceramium rubrum, Ag. 68
