a 
42 
nigra. 
CRYPTOGAMIA, ALGAE. Byssus. (1) Thread-like. 
E. bat. 192. 
Very like a piece of crimson plush or velvet. 
Byssus rubra. Hups. Stones and rocks, especially on such 
as are near the sea. - Pp. Jan.—Dec. 
B. Threads branched, rigid, black; adhering to stones. 
‘Dill..1..18-E, bot, 702—Mich, 90. 5—Gled. 1. 1, Byssus 2. 
Threads short, very black, crowded together. Dit. 
- Threads short, stiff, either simple or with 1 or 2 short lateral 
- brariches. . ae 
au’rea, 
"Abbey, Shropsh.} >» lade 
ful’va. 
- Rocks and larger stones in the North of England and 
Wales. e : ree 
Var. 2, Threads still shorter, not at all branched. 
[On fallen sticks in the woods at Woodhall, near Edin. 
burgh. Mr, Brown. | P. Jan.—Dec. 
B. Hair-like, powdery; orange-coloured : fructifications 
scattered : threads simple and branched. 
E. bot. 212-Dill. 1. 16—Mich. 89. 2-Gled. 1. Byssus fla 
Fl. dan. 718. \—Pet. gaz. 15. 3. is 
Grows in raised tufts. Threads very fine, very short, 
branched or entire, soft, crowded and matted together like a © 
fleece ; saffron coloured, changing to greyish when dry. Drix. 
On the sides of caverns. [On the walls of Lilleshall 
B. Threads upright, finely feathered ; tawny: fructifica- _ 
tions terminating. — : 
Prate XVIII. f. 5. a. b.-E. bot. 701=Dill. 1. 17. 
Of a rich tawny yellow, which colour it retains when dried. — 
When fully grown about 2 inches high, growing in tufts. Each 
fibre is divisible into other fibres, but they are all finely feather- - 
ed from the base upwards. The ends r more solid, of a 
chesnut colour, and not unlike anthers. When examined in the 
microscope these chesnut coloured tips all resemble one another, 
and appear very different from the rest of the plant. They are 
filled with granules, and are = with bristle-shaped tubes — 
inting upwards. See Pl. 18. f. 5. 4, a single tip magnified. 
aus the bihelé thie Phare vot tuae abe Caeoer of 
the fructification. We may either suppose the tip to be a cap- 
sule, the granules it contains the seule anid the bristle-shaped — 
tubes the pistils ; or else that the Granules are Germens, and 
each of the tubes a case of Anthers. oes er 
This plant, whose perfect state of growth seems fo open — 
the way to a discovery of the fructification of the Genus was 
observed by the Right Hon. Lady Elizabeth Noel, growing — 
