0. AGLAOPHENIA. 
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HOOKED. 
X. Aglaophenia angulosa. Stem angular, and 
slightly flexuous ; branches dispersed, and pinnated ; 
divisions opposite ; cells in the form of a cupola, 
with an appendage below, rather long, and arched ; 
height three decimetres.. 
Australasia* 
SPIKED. 
2. Aglaophenia spicata . Stem cylindrical, a little 
cretaceous, and upright ; branches alternate, pinnated, 
numerous, straight, and in the form of thorns ; cells 
eampanulated, with the lower appendage like a calix ; 
height from two to three decimetres. 
Indian Ocean. 
FLEXUOUS. 
3. Aglaophenia flexuosa. Stem cylindrical, flexu- 
ous, and branching ; branches curved above, as well as 
the pinules ; cells toothed, and longer than the lower 
appendage; height from twelve to fifteen centimetres ; 
colour, a bright fawn. 
Eastern Ocean. 
ARCHED. 
4. Aglaophenia arcuata. Stem branching, and 
dichotomous ; branches arched, but not numerous ; 
cells placed between two appendages ; the lower one 
formed like an elbow, with two opposite teeth, 
placed in the angle of the bend ; the upper very short : 
colour, a deep but bright fawn ; height from twelve to 
fifteen centimetres.— Plate 4. fig. 4. a. B, 
Western Ocean. 
Cor . 
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