57 
G. ACAMARCHIS. 
Hairs numerous, rather long, and bent towards the 
branches.— Plate 2. fig. 5. a. B. C. 
Australasia. 
CANDA. 
Frondescent, fan-shaped, and dichotomous Po- 
ly pi dom. Branches united by small lateral and hori- 
zontal fibres. Cells alternate, united, placed on only 
one surface, and not projecting. 
Description can give but an imperfect idea of the 
appearance of this Polypidom, or of the effects pro- 
duced by its dichotomous branches, united by side 
and horizontal fibres, which connect all the parts of 
this beautiful polypous production. 
It is probable that in their living state their colours 
are very bright ; but desiccation has diminished some, 
and destroyed many others. 
Their substance is membranous, horny, cretaceous, 
and friable. 
Their height varies from three to four centimetres. 
Canda arachnoides, Plate 2. fig. 6 . a. B. C. D. 
On the rocks of Timor. 
ACAMARCHIS. 
Dichotomous Polypidom. Cells united and al- 
ternate, terminated by one or two lateral points, with 
a vesicle at their opening. 
The vesicles are nearly globular ; in form they re- 
Cor. H 
