LIST OF FAMILIES, GENERA, AND SPECIES, IN THE THREE 
COLOUR GROUPS, FOR ARRANGEMENT IN THE 
HERBARIUM. 
MELANOSPERMS-CO/iye Group). 
Colour. Varying from olive-green to dark brown. 
Fruit. Single seeds properly called spores ; sunk, or partially 
or wholly immersed in the frond ; or external. 
Family l.-FUCACE^. — Tough ; leathery ; turning black when dry. 
Spores sunk in the frond in special j swollen, slimy portions 
(receptacles) . 
Sargassum ; vulgare, bacciferum. 
Halidrys ; siliquosa. 
Cystoseira ; ericoides, granulata, barbata, foeniculacea, fibrosa. 
Fucus ; Yesiculosns, ceranoides, serratiis. 
Fuc ODIUM ; * nodosum, canaliculatum, Mackaii, tuberculatum. 
Himanthalia ; lorea. 
* Formerly Fucus nodosus (Fig. 13), F. canaliculatus (Fig. 15), F. Mackaii (Fig. 14), and 
Pycnophycus tuherculatus (Fig. 9). 
Family 2.-SP0R0CHNACE.E . — Soft ; membranaceous ; slender ; turning a verdigris 
green in the air. 
Spores on external hair-like jointed threads. 
Carpomitra ; Cabrerge. 
Sporochnus ; pedunculatus. 
Desmarestia ; ligulata, aculeata, viridis. 
Arthrocladia ; yillosa. 
Family 3— LAMINARIACEiE . — Leathery, or membranaceous ; fiat, leaf-like, stalked. 
forming cloudiy patches on the surface. 
Alaria ; esculenta. 
Laminaria ; digitata, digitata var. stenopbylla, bulbosa, longicruris, saccharina, 
Phyllitis, fascia. 
