ALGOLOGICAL LITERATURE OF 1899 97 
from the initial cell of the cryptostoma has been pietionaiy described, 
but is here refigured from new preparations. So far k 
present, this is the only case of such a growth from the initial cell, 
though a study of the initial cells of eryptostomata in — orders 
than Fucacee might lead to interesting results, This ¢ Ul 
known cases is arrested in 1 its growth in an early shige of the 
the Sepik tga starting as it does in the very ‘young os ant, retains 
permanently the character of the loose-celled tissues of the young 
plant. May this not be an explanation of the peculiar initial cell 
— and figured for Splachnidium rugosum in Murray’s Phyco- 
logical Memoirs, pt. i. p.1 et seq.? Here the initial cell of the 
cryptostoma, which subsequently becomes a conceptacle bearing 
sporangia, is connected with the internal cells of the plant by a long 
se ye arising directly from one of the thick central filaments. 
In the mature conceptacles here figured this appendage to the 
or sit closely, with the internal filamentous cells. In Soranthera 
ulvoidea the closely reese cells of the epidermal layer were a 
later formation in the life-history of the alga, and it is easy to 
suppose that the same shia may occur in Splachnidium. However, 
nothing but an examination of the youngest plants of this alga 
can solve the mystery of this initial cell, or explain the G colled 
‘apical ” cell, which exactly resembles it. 
per by Mr. Ernest rei! ‘Ueber Vernarbungs- und 
Prolifleationsesehieinangen bei Meeresalgen” (Flora, Band 86, 
heft ii. H, Mai 20, 1899), the author ‘deals with his subject under 
four hea dings sg Scar-membranes Scar-tissue. 8. Prolifi- 
cation. 4. MG Melehte reproduction nay the first division he 
speaks of the effect of an injury on Codium and dnadyomene, 
ars former plant fae seuasenty without the power of forming 
any membrane over the injured place, Ww while in Anadyomene the 
wall of the long cylindrical cells is not only closed together by a 
new membrane nen n twenty-four hours, but that cell retains also 
the power of growth. Herr Kiister carefully remarks ane does not 
find this See ‘of fresh Satie: in fees instance where an injury 
has been closed by a new ee ds ; he would only imply i iia at 
least in some cases this doe 
The second peat sedis the ude formed by the plant round 
an injured part of the thallus, as is often seen in members of 
Journnat or Borany.—Vou. 38. (Marca, 1900.] a 
