130 



ON SEEDLINGS 



unite with the midrib near the apex, glabrous, light green above, 



paler beneath, 5-6 mm. long, 2-25-3 mm. wide. 



Stem herbaceous, procumbent at the base or creeping, with erect 

 flowering stems ; primary inter- 

 nodes undeveloped. 



Leaves radical and cauline, 

 alternate (first two opposite or 

 equally developed), more or less 

 hairy or tomentose when young, 

 minutely scaly, deep greyish- 

 green ; petioles semiterete, deeply 

 channelled above, dilated and 

 clasping at the base, more or less 

 hairy. 



Nos. 1 and 2. Opposite, spath- 

 ulate, acute, tapering into the 

 petiole, always having one to two 

 subulate, acute teeth on each 

 side. 



Ultimate leaves oblanceolate- 

 linear in outline, two to four 

 times pinnatisect primary and 

 secondary segments or divisions 

 FIG. 470. Achillea Millefolium, x 2. ovate ; tertiary and quaternary 

 divisions slender, subulate or 



lanceolate, acute, more or less acuminate or subaristate. 



Anthemis sp. (fig. 471). 



Primary root comparatively short, tapering rather suddenly to 

 a fine point and giving off long, lateral, adventitious roots. 



Hypocotyl terete, glabrous, twisted very frequently or curved, 

 pale green, almost colourless, 1-1*5 cm. long. 



Cotyledons shortly linear- oblong, obtuse, 5-6 mm. long, 2 mm. 

 wide. 



Stem herbaceous, terete or slightly angular, glabrous or minutely 

 scabrous on the slender ridges, pale green ; 1st internode 2 mm. 

 long ; 2nd undeveloped ; 3rd 3'5 mm. ; 4th 2 mm. 



Leaves multisect, alternate, with amplexicaul petioles, pale green, 

 odorous, glabrous or minutely and sparsely pubescent, chiefly on the 

 nerves. 



Nos. 1 and 2. Almost or quite opposite ; lamina oblong, pin- 

 nati-fid or -sect, with lanceolate, acute segments ; petiole flat above, 

 convex beneath, 1*3 cm. long. 



