LIST OF FAMILIES, GENERA, AND SPECIES, IN THE 

 THREE COLOUR GROUPS, FOR ARRANGEMENT 

 IN THE HERBARIUM. 



MELANO SPERMS— Group). 



Colour, Yarying from olive-green to dark brown. 

 Fruit. Single seeds properly called spores; sunk, or partially 

 or wholly immersed in the frond; or external. 



Family \,—YTiGkG'^M—Tougli; leather ij; tm ^ning hlaclc ivlien dry. 



Spores siinh in the frond in special, sivollen, slimy 

 portions (receptacles). 



Sargassum; vulgare, bacciferum. 

 Halidrts; siliquosa. 



Ctstoseira; ericoides, granulata, barbata, foeniciilacea, fibrosa. 

 Fucrs; vesiciilosus, ceranoides, serratus. 



FucoDiUM;* nodosum, cananiculatum, Mackaii, tuberculatum. 

 Himanthalia; lorea. 



* Formerly Fucus nodosus (Fig. 13), F. canaUcnlakis (Fig. 15), F. Mackaii 

 (Fig. 14), and Fymopliycns tuber cidatus (Fig. 9). 



Family 2. — SPOEOCHNAGE-^. — Soft; memlranaceous; slender; turning a 



verdigris green in tlie air. 

 Spores on external hair-like jointed threads. 



Cakpomitra; Cabrerse. 

 Sporochjs'FS ; pedunculatus. 

 Desmaeestia; ligulata, aculeata, viridis. 

 Artheocladia; villosa. 



Family 3. — LAMINAEIACEiE. — Leathery, or memlranaceous; flat, leaf like, 



stalked. 



Spores forming cloudy patches on the surface. 



Alaeia; esculenta. 



Lami^aria; digitata, digitata var. stenopliylla, bulbosa, longicruris, saccharina, 

 Phyllitis, fascia. 



