IOO 
T. G. Hill . 
shewed that the first was unsuccessful, for no hummocks were 
formed and the plants were practically obliterated : in the second 
case, the Salicornias planted in the main stream held their own, 
some were ranged at right angles to the course of the current and 
had accretions of sand around them. 
Fig. 4. Map (charted April, 1907) shewing colonisation of a sand-bank in 
the bed of a channel. The rhomboidal figures are the outlines of sand 
hummocks collected since 1903 by plants of Salicornia radicans and S. herbacea. 
The black transverse belts mark the 5. radicans, whilst the position of S herbacea 
is marked by short vertical strokes. The hummocks accumulated by the 
latter are relatively small. The shading marks areas (hummocks) further 
colonised by Glyceria maritima and Suceda maritima. These two plants do not 
appear to settle directly on the sand-bank itself. The arrow points down 
stream. Scale T V 
During the course of the past year considerable interest has 
been aroused through the publication by Dr, Stapf of some account 
of the part played by forms of Spartina in the colonization of mud 
in Southampton Water and the Solent. It would appear that 
S. alternifLora and especially a supposed natural hybrid between 
this species and 5. stricta, known as 5. Townsendii, have been 
rapidly advancing along these shores in recent years and exerting a 
