CRYPTOGAMIA. ALGiE. Conferva. 
131 
(C. ericeto'rum. Dull purple, filaments simple, slender, prostrate, 
closely entangled, scarcely contracted at the joints, which are 
about as long as they are broad. E. Bot. 
Dillw . 1— E. Bot. 1553. 
Purplish Heath Conferva. Communicated by Mr. D. Turner to 
Mr. Dillwyn. Common on most heaths, though but recently described. 
E. 
(C. mura-lts. Green, filaments simple, very slender, prostrate, closely 
entangled, somewhat rigid, joints very short, slightly swollen, 
with obsolete partitions. 
Dillw. 7— E. Bot. 1554- 
Green Wall Conferva. Oscillatoria muralis. Agard. Hook. Clothing 
damp walls, stones, and gravel walks, in patches resembling green satin ; 
very common, though first described by Mr. Dillwyn. E.) 
(C. ebe'nea. Filaments branched, erect, tufted, rigid, subcartilagh* 
nous, obtuse; articulations as long as they are broad. 
Dillw. 101— Dill 1. 18— E. Bot. 702— Mich. 90. 5—Gled. 1. 1. 
Byssus 2. 
Threads short, black, crowded together. 
Black Tufted Conferva. C. ebenea. Dillw. Agard. Hook. Byssus nigra. 
Lightf. With, to Ed. 7. Rocks and large stones in the north of England, 
and in Wales. 
Var. 2. Filaments still shorter, not at all branched. 
On fallen sticks in the woods at Woodhall, near Edinburgh. Mr. Brown. 
P. Jan.—Dec. E.) 
(C. bipuncta'ta. Green, filaments unbranched, slippery, cylindrical, 
joints rather longer than broad, each double-dotted. 
Dillw. 71— E. Bot. 1610. 
Double-dotted Conferva. Stagnant waters, either floating in thick 
masses on the surface, or loose at the bottom of the water. Dillwyn. E ) 
(C. casta'nea. Chesnut brown: filaments creeping, branched, en* 
tangled, alternately bipinnate: branches divaricated, tapering 
acute ; joints elongated, even. 
Dillw. 71— E. Bot. 1701. 
Very minute, and greatly resembling the fibrous radicles of many mosses 
among which it sometimes grows. 
Creeping Chesnut-coloured Conferva. It creeps in loose entangled 
patches, not only among mosses, but over dead stalks and sticks; also 
over stones and earth. Dillwyn, and E. Bot. E.) 
(C. HOOK r ERi. Filaments very much branched; the primary ones 
without joints; branchlets pinnate, slender, flexuose, scattered, 
pale reddish brown; pinnules alternate,. jointed;. articulations 
half as long again as broad. 
Dillw. 106. 
Two to four inches long, very gelatinous when fresh, and adhering firmly 
to paper in drying. 
Brown Gelatinous Conferva. Rocks in the sea at Cawsie, Morayshire. 
Borrer and Hook. E.) 
