leT 
GLOSSARY. 
Corallum. — The calcareous, horny, or other firm secretions of polyps, as the coral 
of the Madrepore, the horny and calcareous secretions of the Gorgonidse, the mem- 
branous of the Sertularia3. 
Segregate. — Groups having the polyps disunited except at base. 
Aggregate. — Groups in which the polyps are united laterally. 
Acrogenous. — Growing upward indefinitely, increase taldng place at summit. 
Prolate. — The summits of the polyps widening by growth and budding. 
Glomerate. — Massive. 
Explanate. — Foliaceous, either oblique or horizontal. 
Lamellate. — Erect foliaceous. 
Arborescent. — Ramose like a tree. 
Flahellate. — Branching in a plane. 
Unifacial. — Having the polyp-mouths on one surface only. 
Bifacial. — Having polyp-mouths on both surfaces. 
Caliculato-ramose. — Each calicle forming a distinct branch, 
Patrio-ramose. — Branches lengthening by means of a terminal polyp, 
Cumulato-ramose. — Branches lengthening by means of a terminal group of polyps. 
Farcato-ram.ose. — Branching by spontaneous subdivision at summit. 
Calicle {Caliculus, a little cup). — The radiated cell or cavity in the corallum cor- 
responding each to a polyp. 
Lamella. — One of the radiating plates of a calicle or cell. 
Cellule. — The pores in the internal texture of a corallum. 
Septum. — The wall betw^een two cells, or that enclosing a cell. 
Ormmc.— The small depression in the surface of the coralla of the Fungidse, 
being the centre of radiation of the lamellae, and corresponding to the centre of a 
polyp, a mouth being over each in the living Zoojehyte. 
