126 
CRYPTOGAM! A. ALGiE. Conferva. 
(C. as'rea. Green: filaments unbranched, straight, somewhat rigid ; 
joints very unequal, scarcely so long as broad; their partitions 
pellucid. 
Dillw. 80— E. But. 1929. 
Colour with a cast of verdigrise. The filaments grow in large patches on 
wooden posts and rails in the sea, and from three to fifteen inches long, 
about the size of coarse thread, though sometimes as thick as a crow 
quill. E. Bot. 
Var. 1. Conferva isogona. 
E. Bot. 1930. 
Joints all equal: in which particular alone this plant appears to differ 
from the preceding: we therefore introduce it as a mere variety. This 
likewise seems tp be C. Youngana of Dillwyn, Pi. 102. 
Verdigrise Conferva. Both kinds have been found by Messrs. Turner 
and Hooker on the Yarmouth coast. E.) 
(C. arbus'cula. Red, much branched; main stems thick, naked, 
without evident joints: branches compound, tufted, somewhat 
whorled, their ultimate segments alternate: joints as broad as 
long : capsules sessile, globose. 
Dillw. 85~E. Bot. 1916. 
Plant of a little tree-like form : capsules dark red. E. Bot. Two to four 
inches long. Two kinds of 'fruit have been found upon it, sessile capsules, 
and swollen extremities of the branches with a double row of seeds. 
Hook. 
Red Shrubby Conferva. Hutchinsia arhuscula. Hook. Named by its 
first discoverer, Robert Brown, F. R. S. in honour of Miss Hutchins, 
a distinguished marine botanist. Bantry Bay. Miss Hutchins. E.) 
(C. flexuo'sa. Green: frond capillary, once or twice branched, 
zigzag; ultimate branches alternately two ranked, spreading; 
joints cylindrical, elongated, with obsolete partitions. 
Dillw. 10— E. Bot. 1944— FI. Dan. 882. 
The filaments form entangled green masses at the bottom of the water, the 
principal ones being once or twice branched, finer than a hair, of a dark 
blackish green. E. Bot. 
Green Zigzag-branched Conferva. At Yarmouth. Mr. Turner. In 
salt ditches at Clay, Norfolk, Mr. Hooker. In Jarrow Slake and South- 
wick Marsh, Durham. Mr. Winch. April. E. 
(C. striat'ula. Pale green; filaments capillaiy, simple, compressed; 
joints quadrangular, rather broader than long, in pairs, trans¬ 
versely and uninterruptedly striated; at length separating at one 
edge and divaricated. 
E. Bot. 1928. 
Filaments from one to- two lines in height, as slender as the finest hair. It 
is one of those plants which seem to form the intermediate link between 
the animal and vegetable kingdoms, having a striking resemblance to the 
Taenia. 
Disjointed Streaked Conferva. On Fuci and Conferva, at Cromer, 
Mr. W. J. Hooker. E. Bot. April. E.) 
