xl 



LIST OF FAMILIES, GENEEA, AND SPECIES, IN THE THREE COLOUR GROUPS. 



EHODOSPEEMS— Group). 



Colour. Varying from pink to crimson, or dark, reddish purple. 



Fruit Of two kinds — 1. Simple seeds, properly called Spores, 

 2. Four-parted seeds, called Tetraspores; external; or 

 sunk, or wholly or partially immersed in the frond. 



Family l.—Rlim(MELkQ'EM,—Soft; slender; tlireacUihe; or menibranaceoios : 



fiat. 



1. Spores in external cases (capsules), Jiaving 



an opening at tojo. 



2. Tetraspores immersed. 



Odonthalia; dentata. 

 Chondria;* dasypbylla, tenuissima. 

 Rhodomela; lycopodiodes, subfusca. 



Rytiphl^A; pinastroides, complanata, thuyoides, fruticulosa. 



Poltsiphonia; -urceolata, formosa, pulvinata, fibrata, spinulosa, Eieliardsoni , 

 Griffithsiana, elongella, elongata, violacea, Carmichaeliana, fibrillosa, 

 Brodiaii, variegata, obscura, simulans, nigrescens, affinis, subulifera, atro- 

 rubescens, furcellata, fastigiata, parasitica, byssoides. 



Bostkychia; scorpioides. 



Dasya; coccinea, ocellata, arbuscala, venusta, CattlovisePf, punicea.J 



* Formerly Laurencia dasyphylla (Fig. 144), and X. tenuissima (Fig. 143). 

 t See Appendix of New Species. % See Appendix of New Species. 



Family 8. — LAUE-ENCIACE-^. — JSoft and tliread-Iil-e; jiesliy or gelatinous. 



1. Spores in external closed cases (capsules). 



2. Tetraspores immersed. 



Bonnemaisonia; asparagoides. 

 Laurencia; pinnatiMa, coespitosa, obtusa. 

 LoMENTAEiA;* ovalis, kaliformis, reflexa. 

 CHAMPiAjt parvula. 



* Formerly Cliylocladia ovalis (Fig. 145); C. Tcaliformis (Figs. 146, 154), 



and C. reflexa (Fig. 138). 

 t Formerly Cliylocladia iJarvula (Fig. 153). 



Family 9. — WRANGELIACEiE. — Soft, tliread-lile; more or less visiUy clothed 



with jointed hranchleteens. 



1. Spores in masses, on external, hair-like, 

 jointed threads. 



2. Tetraspores external. 



Weangelia; multifida. 

 Naccaria; Wiggii, b^^onoides.* 



* See Appendix of New Species. 



