THE GENOTYPICAL RESPONSE OF THE PLANT 267 
however, some additional points of differences between the Väderö 
and the Marstrand cultures not shown in the tables. The leaves of the 
Marstrand plants are throughout narrower but thicker than those of 
the Väderö culture. They are about 2 mm. wide in the latter but 
hardly 1 mm.’in the former plants. The anatomical structure of the 
leaf is also totally different in the two cultures. Fig. 74 ¢ is a cross 
section of a leaf from a Marstrand plant taken from the culture in 
1922. There are 3—4 layers of palisades on the upper side but none 
Field n:o 
Q I GO O1 À © D mn 
TABLE*7, 
Length of Length of 
longest | longest See | 
scape in | scape in = PAPE Length of bracts BES. Hairiness of calyx 
1a | #igap | Hairy or ae 
(in mm.) | (in mm.)| ac) 
248 228 | Hairy (Shorter than the head | Short Along ribs 
273 218 » » » » » | Blunt » 
259 245 Smooth » » » Dee » » 
268 208 Hairy » » » » | Short |Mostly along ribs 
167 124 » » » » » | Blunt Along ribs 
361 250 Smooth » » » » » Hairy throughout 
238 202 Hairy As long as the head | Short Mostly along ribs 
300 252 » Longer than the head Longand Along ribs 
| | pointed 
234 140 | Smooth (Shorter than the head | Blunt » 
305 168 Hairy | » » » » | » ‘Hairy throughout 
260 164 » eae) » » » | Short | - Along ribs 
339 185 » » » »  » | Blunt Mostly along ribs 
220 190 » eae: » » » | » Along ribs 
226 200 Smooth | As long as the head | Short | » 
294. | -:260 Hairy | Shorter than the head » » 
in the lower. The plants collected on the Norwegian coast seem. to 
correspond with the Marstrand plants as to the length of the scape 
and with regard to the anatomical structure of the leaves. The Väderö 
plants resemble more the inland form af Armeria vulgaris as to the 
structure of the leaves. The leaf structure of the inland form (from 
the Tollarp culture, 1922) is seen in fig. 74 d. There is here a tendency 
to isolaterality, two layers of palisades being the rule on the upper side 
and 1—2 layers on the lower side. The Väderö plant has most often 
one layer of palisades on the lower side (cf. WarMixG, 1897). The 
colour of the flowers is another point of difference; it is deep red in 
