386 



Fr. J. Mathiesen. 



time part in the vegetative propagation; from the leaf- 

 axils which follow next, racemose inflorescences proceed. But 

 after a short pause during the flowering period, the parent 

 shoot continues its growth at the apex and, under favour- 

 able conditions, may also produce new lateral shoots, as also 



it may, it is true, 

 continue its growth 



throughout the 

 winter, as soon as 

 the temperature has 

 reached a certain 

 degree of warmth. 

 I have, however, 



observed several 

 cases in which the 

 main shoot had been 

 biologically arrested 

 through flowering, 

 and had died away 

 as far down as 

 below the inflores- 

 cences." 



A dwarf speci- 

 men of f. glabrata 

 (Strömö, Kirkebö- 

 kamp, leg. C. H. 

 Ostenfeld, 8. 6. 1895) is illustrated in Fig. 9; it is drawn 

 almost twice the natural size. The individual did not flower ; 

 the few leaves from the previous year which are still remain- 

 ing, are recognizable by their being shaded. The branching 

 is seen to be abundant — these dwarf individuals therefore 

 often form rather dense tufts. Uppermost in the figure the 

 last-formed leaves are seen to bend over the apex of the 



Fig. 9. Veronica officinalis L. 



f. glabrata Fristedt. 



Kirkebökamp, Strömö (The Færoes). 



(About 2/i). 



