. CRYPTOGAMIA. ALGAE. Tremella.’ - 8k 
This usually vegetates with a very small, but hard spherical 
excrescence ; and varies in size from the minutest point to that 
of a small vetch. It sometimes covers the rocks to a consider- 
able extent. At-very low water in spring tides, and upon those 
submarine rocks which at that period only, are exposed to air, 
I have.very frequently found this plant (as I conceive it to be) 
in an inflated state, quite globular and more than an inch in 
diameter. It is then of a most beautiful. transparent green co- 
lour: it afterwards collapses ard dries into a hard sinuated crust, 
partes. erical, but of the gh colour and texture as gee Tye. 
mella, and indeed the edges of it are often times rounded in a 
manner exactly similat to Me cant described. These are 
found in small masses of the Tremella, growing promiscuously 
therewith. Major Vettey. Consists A granules fixed to the 
stones without any order; globular, but flatted on the under 
side, so that they may be considered as hemispherical ; from z 
to 1; line in diameter ; slippery, gelatinous but tough, so as not 
to be easily broken by pressing between the fingers. Wetc. obs. 
p- 39. - 
Only upon ‘rocks; never upon Fuci or Confervas. Mr. 
STACKHOUSE. ae ABs 
= : A Jan.— Dec. 
Tr. Dull green; roundish; indented, of various forms, diffor’mis. 
jelly-like. fo —- 
Very nearly allied to T. verrucosa, but is soft and grows on 
tvas. Linn. suec. n. 1140. 
OnConfervas and Fuci growing on submarine rocks. . have 
always found it adhering to the bare rock. Mr. Sracku. 
Tr. Violet-coloured ; wrinkled, smooth underneath. Ray. viola’cea. 
tn Syn, 22. 0.4. Yass tT See eS Pg 
- ) oS 2m 
Bull. 499. 5. A 
Very much resembling the tartar of red wine. Rein. Be- 
tween leathery and gelatinous, variously wrinkled and contorted, 
flat and smooth underneath. Colour dull violet. Ray. p- 22. n. 
4. Helvella mesenterica. Drcxs. p- 20... : 
Seems rather to belong to the Helvellas, Rein. suppl.i. 39. 
Decayed branches of trees. [On rails, after much rain, in es 
December. ] _ 
TR. Violet-coloured, lobed; surface furrowed. _ -amethys‘tea, _ 
Bolt. 101, ¢-Scheff. 323 and 324—Facg. mist. ii. 22-Bull. 
- 499, 5-Batsch. oan ‘ : tae 
Gelatinous ; generally growing in clusters. Stem very short, 
solid, varying much in shake: Mutts Sherine none. .Pileus 
» Variable, hemispherical, or funnel-shaped, or like a 
oL. IV. G 
