372 
ST. HELENA. 
Symphogyna, Montagne et Nces in Ann. des Sc. Nat. 1836. 
960. *S. serrata, sp. nov. — Frondes e rhizomate repente ascen- 
dentes erective stipite anguste alato superne bis terve bifidi, nervo 
angusto percursi, lacinire lineares margine flexuos* serratse. — Capt. 
Hangbton. 
Fronds, including the stipes, about one inch high ; lacinise two- 
thirds of a line broad, not much altered by drying ; margins flexuose, 
both 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. convoluta, Tayl. Loud. Journ. of Bot. 1845, p. 94. — 
Hab. Ascension, Dr. Hooker. 
The habit of this species is similar to that of P allavicinius pro- 
cumbent, 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. l.c. — 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 be ; although 
it is a little smaller, the structure seems identical. 
Marchantia, Linn. 
963. M. polymorpha, Linn. — Found on the high central 
ridge, alt. 5 to 5'4, covering the banks beneath the native Cabbage- 
trees and ferns, Melliss. Probably indigenous to St. Helena. 
The small specimen is of firm substance, without any discolo- 
ration in the middle of the fronds, in this particular corresponding 
with most southern specimens. 
Dendroceros, Nees ab Esenbeck, Gottsche, Lindenb. et Nees 
Synop. Hepat. 579. 
964. *D. adglutinatus, Tayl. Loud. Journ. of Bot. 1845, p. 
96 (Monoclea). — On trees, Diana’s Peak, Dr. Hooker. 
A small species like 1). brasiliensis ; but in the specimens, which 
are very poor and scanty, less crisped at the margins. 
