96 
Notes. 
LITERATURE. 
( 1 ). 
( 2 ). 
(3) . 
( 4 ) . 
(5) . 
( 6 ) . 
J. Boehm : Ueber der vegetabilischen Nahrwerth der Kalksalze. Sitzber. d. 
Wiener Ak. d. W. Bd. 71, 1875. 
A. F. W. Schimper : Ueber Kalkoxalatbildung in den Laubblattern. Bot. 
Zeit. 1888 (Sep. Abd.). 
A. F. W. Schimper : Zur Frage der Assimilation der Mineralsalze durcli die 
grime Pflanze. Flora, 1890 (Sep. Abd.). 
R. Giessler : Die Localization der Oxalsaure in der Pflanze. Bot. Zeitung, 
1894, No. 2, p. 25. 
A. F. W. Schimper : Ueber Bildung nnd Wanderung der Kohlhydrate in den 
Laubblattern. Bot. Zeit. 1885 (Sep. Abd.). 
Horace T. Brown & G. H. Morris : A Contribution to the Chemistry and 
Physiology of Foliage-leaves. Abstract in Annals of Botany, VII, 1893, 
P ’ 2/I ' PERCY GROOM. 
Oxford. 
NOTE ON SACCOHHIZA BULBOSA, J. G. AG., AND 
AD ARIA ESCULENT A, GREV. — In his paper on the structure and 
development of the bulb in Laminaria bulbosa , Lam. in Vol. Ill of 
the Annals of Botany (pp. 41-64), Barber gives an interesting resumt 
of the literature dealing with this plant. From the references there 
given, it would not appear that the duration of the plant had, at that 
time, been satisfactorily settled. From observations made last year 
while collecting Algae on the coast of Anglesey, I have satisfied my- 
self that the species is an annual, and in this respect contrasts sharply 
with the other British Laminariaceae. 
During the spring tides of March, I had an opportunity of examining 
Saccorhiza growing, and at that time, I found it represented by 
specimens in two widely different conditions. First, there were large 
bulbs often more than a foot in diameter, from which the whole of the 
blade, and almost the whole of the stalk had disappeared through 
decay. The bulbs themselves were as yet sound, and required the 
exertion of considerable force to remove them. Among these blackish 
masses, bristling with ‘hapteres/ were numerous young plants of 
a lighter colour, and exhibiting the various stages in the development 
of the bulb described by Barber; but in no case had the bulbous 
portion attained a diameter of more than four inches, or the whole 
plant a length of more than two feet. Upon visiting the same site 
during the spring tides of October, I could find no trace of exfoliated 
bulbs or of young imperfectly developed plants. All the specimens 
were now in the condition of the mature plant, with which we are made 
