286 GOTE TURESSON 
woodlands. Large collections have been made in the neighbourhood 
of Christianstad, and these contain apparently all kinds of types as to 
angles of stem and leaf characters, making a very strong impression 
of a population composed of hybrids between the inland form and the 
prostrate dune form and their segregates. These series have been in 
culture during only one vegetation period and are therefore not dis- 
cussed any further here. The same is true of series brought together 
from the eastern limit of the area in Scania occupied by the prostrate 
form. It occurs sporadically in its typical habitus to about Skrabbe- 
Fig. 51. H. umbellatum, Dried specimen from 
Vitemölle. 
mölla, near the Blekingian border, where 
the same bewildering multitude of forms as 
at the north-western limit is met with. 
The prostrate form extends southwards 
to Kivik, where also the sand field area 
ceases. Table 21 shows the result of the 
cultivation of two series (list nos. 26 and 
27) of this type from Vitemölle, a little 
north of Kivik. They were brought under culture in 1919. List no. 
27 comes from the closed dunes and arenacious fields a few hundred 
metres from the beach, and list no. 26 contains individuals collected 
on the Elymus-dune of the beach, where this form grows but very 
sparsely. When these series are compared with the series from Ahus 
the close correspondence between the two sets is at once seen. 
The morphological features of the plant in culture differ some- 
what from the habitus characteristic of the plant growing in its na- 
tural habitat. Fig. 51 gives a picture of a typical plant as found in the 
field. A more or less horizontal position is taken up by the stem as 
