193 
MORE ANTARCTIC ALGA.* 
By A. & E. 8. Gepp. 
(Puate 472.) 
Since the publication of our paper on the Antarctic Alge col- 
lected by the Scottish National Antarctic Expedition at the South 
Orkney Islands (Journ. Bot. 1905, 105-109), we have received from 
Mr. B udmose Brown a few more specimens, which he had 
previously ete dickal amony other collections, and which were not 
discovered until the final clearing of the ‘Scotia’ preparatory to we 
sale. That they were not sent to us with the first batch is 
fortunate; for among them is a sporangiferous specimen ae 
shows that the sterile plant which we described as Leptosarca 
h 
orm a new section. There is also a new species closely allied to 
Delesseria sanguinea, but at enor distinguished from it by the ne 
pendages which adorn the cystocarp. ler specimens 
sterile, and one of eM we ee quite failed to identify from its 
structure and form, though we have compared it widely with the ex- 
tensive collection of microscope-preparations in the British sas 
six rae are reported as having been collected at a 
Pie of 9-10 fathom 
. Witpermannta tactntata De Toni (- oo laciniata Ag.). 
Bastian Bay South onkie ‘Maxéh 25, 
Geogr. Distr. Mediterranean, North eeecoatti South Georgia, 
Scotia Bad; South Orkneys. 
2. FroripE Frons cartilaginea plana, 28 em. lata, irreeu- 
lariter lacerata et fenestrata levis, stratis duobus contexta; cellulis 
elongatis aie cartilagine hyalina immersis hie illic filamento 
tenui inter se conjunctis; cellulis su pacer minoribus paucis 
rotundatis, nérteatiis elongatis angustis (20-2 x 4p) wa 
signe tromaticis ; omnibus protoplasmate eran instructis 
a Bay, South Orkneys, March 25, 1903 
is specimen consists of a broad thickish cartilaginous frond, 
ssealling Tridea, much re ent and irregular in outline, about 23 em. 
in length and width. No point of attachment is to be distinguished, 
and the mena is ragged and slit at the margin and in the body of 
the frond—something like Kiitzing’s figure “of Iridaa cornea (Tab. 
Phye. xvii. t. 20). Neither cystocarps nor tetraspores are present. 
* This paper, with that on ase ms Algwe” by the same authors, com- 
higher i 
pen and will be published later.—R. N. Ressnan 
JournaL or Borany.—Von, 43. [Juby, 1905. } r 
