Symphogyna, Montagne et Nees in Ann. des Sc. Nat. 1836.
960. *S. serrata, sp. nov.—Frondes e rhizomate repente ascendentes
erective stipite anguste alato superne bis terve bifidi, nervo
angusto percursi, laciniae lineares margine flexnosse serratas.—Capt.
Hanghton.
Fronds, including tbe stipes, about one inch h ig h ; lacinise two-
thirds of a line broad, not much altered by drying; margins flexuose,
hoth in the wet and dry states.
Smaller than S. Lehmanniana, from S. Africa, and of firmer sub->
stance, as well as a more graceful species.
961. $S. convbluta, Tayl. Lond. Journ. of Bot. 1845, p. 94.—
Hab. Ascension, Dr. Hooker.
The habit of this species is similar to that of Pallavicinius pro-
cumbens, with which it agrees in its brown colour. No trace of in-,
florescence is observable on the specimens.
Exormotheca, Mitt, in Godman Nat. Hist, of the
Azores, p. 325.
962. *E. pustulosa, Mitt. I.e.—Found amongst Bryum argen-
teum, Linn., Melliss.
The specimen is far too scant to determine if this is absolutely
the same species as the Madeiran plant, as it appears to b e ; although
it is a little smaller, the structure seems identical.
Marchantía, Linn.
963. M. polymorpha, Linn. — Found on the high central
ridge, alt. 5 to 5’4, covering the banks béneath the native Cabbage-
trees and ferns, Melliss. Probably indigenous to St. Helena.
The small specimen is of firm substance, without any discoloration
in the middle of the fronds, in this particular corresponding
with most, southern specimens.
Dendroceros, Nees ab Esenbeck, G-ottsche, Lindenb. et Nees
Synop. Hepat. 579.
964. *D. adglutinatus, Tayl. Lond. Journ. of Bot. 1845, p.
96 (Monoclea).—On trees, Diana’s Peak, Dr. Hooker.
A small species like B. brasiliensis; but in the specimens, which
are very poor and -scanty, less crisped at the margins.
Anthoceros, Micheli.
965. *A. lsevis, Linn.—Melliss.
CLASS IV.—THALLOPHYTES.
1 2 4 . L ic h e n e s {Lichens).
CoLLEMACEI.
COLLEMEI.
Leptogium, Ach.
966. L. tremelloides, (Fr.) — A slate-coloured Lichen, ip.
fructification, found clinging to the branches of Cabbage-trees and
other native vegetation on the high land in a damp atmosphere.
Alt. 5‘4. I t is found also in Great Britain.
L ic h e n a c e i .
CliADODEI.
Cladonia, Hoffm.
967.. C. pyxidata, F r .; forma fimbriata {denticulata).
968. C. pyxidata, F r .; forma pityrea (decorticata).—A small
needle-shaped whitish Lichen about § of an inch long, found growing
in damp situations on banks and stems of decaying trees.—H. L.
969. C. pyxidata, F r forma chlorophcea.—A species very
like the last, but with the addition of a funnel or cup-shaped top,
found growing in similar situations.
970. C. aggregata, (Sw.) Eschw.—Fragments only.
R am alo de i.
Roccella, D.C.
971. R. tinctoria, Ach.—A shrubby whitish-brown Lichen of a
brittle nature, found on rocks on the low land and outskirts of the
Island. I t is found also in Great Britain.
972. R. phycopsis, Ach.— A shrubby whitish Lichen of a
somewhat more supple nature than the last species, but found in
similar situations. I t grows in a sort of knotted form. Also found
in Great Britain.
.973. R. fuciformis, Ach.—Growing on the hard basaltic rocks