24 ZOOPHYTA. 



T. thuia. Fig. 32 ; n. s. and mag. 

 articulata. 



Antennularia (Lamk.). Corallum simple or 

 branched, jointed, with slender hair-like branchlets 

 set in whorls ; cells small cups set all on the inner 

 side of the branchlets ; egg- vesicles seated in the 

 angles. 



A. antennina. Fig. 33 ; n. s. and mag. 

 ramosa. 



Plumularia (Lamk.). Corallum simple or 

 branched, feathery ; cells small, usually seated 

 in the angles formed by horny spines on the inner 

 side of the branches ; egg-vesicles scattered. 



* Stem simple. 



P. falcata. P. setacea. 



cristata. Catharina 



pennatula. echinulata. 



pinnata. Fig. 34 ; n. s. and mag. fascis. 



** Stem composed of many parallel tubes. 

 P. myriophyllum. P. frutescens. 



FAMILY III. CAMPANULARIAD^E. 



Laomedea (Lamouroux). Corallum plant-like, 

 erect, regularly jointed, the joints ringed, thickened, 

 giving origin, alternately from opposite sides, to 

 the cells, which are deep, goblet-shaped, and set 

 at the end of short stalks. Egg-vesicles seated 

 in the angles of the branches, each producing 

 many embryos resembling medusas. 



L. dichotoma. L. obliqua. 



geniculata. Fig. 35 ; n. s. and mag. Flemingii. 



gelatinosa. lacerata. 



Campanularia (Lamk.). Corallum creeping, or 

 erect ; cells goblet-shaped, at the tips of long 



