106 THE JOURNAL OF BOTANY 
obtusis, bis vel ter vel quater dichotomus, subter quamque dicho- 
tomiam expansus; rami plano-convexi ancipites marginibus acutis, 
laxe torti. Stipes totus e callo usque ad laminas 30-120 
Lamine lstiasolagelinaeses, longissime (1-8 metr.), late (8-45 cm.), 
room aac rhe undulatis inteyerrinis, = deleto, fissiles, in 
oar ens. perio a igno ge 
"Hab. Scotia Pic South Orlbieyu: near surface, April, 1904. 
Also from Cape A and Coulman Island, Brit. Antarct. Exped. 
dfermtesl Aine is ors one of the dendroid species of Lessonia, but 
is remarkable for its huge lamine. In habit and structure it is 
most nearly allied to L. laminarioides, but differs from it i n being 
larger, in having a flat, twisted stipe, and lamine resembling 
large fronds of Lam inaria saccharina, The structure of the lamina 
(1885), p. 645, tab. vi. fig. 11) for L. ovata, but, unlike those, 
enclosed in a sheath of very small cells. Ina faye aa gs ag 
the stipe the medulla is evident to the naked e 
darker band from end to end of the section. This imecstibe “of 
colour is indistinguishable under the microscope 
. 8. Apgvocystis Lesson Hook. & Harv. South Orkneys, Bay M, 
sa: soa 
gr. Distr. Cape Horn, Falklands, Auckland and Campbell 
a ns Cockburn Island, Kerguelen, Tasmania, and New Zealand. 
4. Desmarestia Rossi Hook. & Harv. South Orkneys, Bay A, 
1-8 g irc March 1, 190 
esd Distr. Cape Horn, Falklan 
It is one that the ‘ Scotia’ saetiths contain no example 
of the plant called D. media in the Flora Antarctica, part ii. (1847), 
p- t i hope Secale species in the south polar region, and well 
represented in the ‘ Discovery’ collections; but it is not—as Harvey 
os With the norther n D- media Grey. (Sporochnus 
medi g.). ht ave been cialis to rename the southern 
species D. Harveyana. Our reasons for this will be given in the 
report on the British Antarctic Expediti on 
Frormez, 
HOCOCCUS SPINULIGER Hook. & Harv. poe ou oe 
Bay A, 9-10 fathoms, May, 1903. Scotia Ba: Y> Dec, 1 
gr. Distr. Cape Horn, Falklands, Pun ta Aren 
: - EPyMenia sp. South tide mers A, 9-10 fathoms May, 
~~ 
