COMPOSITE 



131 



No. 8. Pinnatisect ; lower segments small, linear, acute, entire ; 

 upper segments lanceolate, acute, frequently cut again. 



Nos. 4-6. Bipinnatisect 

 with slender, linear-lanceo- 

 late, acute or bristle-tipped 

 segments. 



These characters are 

 fairly constant throughout 



a great 

 lings. 



number of seed- 



FIG. 471. Anthemis sp. 

 Nat. size. 



Anthemis mixta, L. 



Primary root slender 

 and fibrous. 



Hypocotyl erect, terete, 

 glabrous, reddish, 1-1-5 

 cm. long. 



Cotyledons linear-spath- 

 ulate, tapering to a narrow 

 petiole-like base, obtuse, 

 slightly connate at the base, 

 glabrous, 1-1-6 cm. long, 

 2-2-5 mm. at the widest. 



Stem herbaceous, erect, 

 terete, glabrous ; 1st internode 2-12 mm. long, according to circum- 

 stances, and whether the seedlings are crowded or not. 



Leaves alternate (first pair opposite), sessile, glabrous, uni- tobi- 

 pinnatisect, more or less sheathing or clasping at the base. 



First pair opposite, entire, long, slender, linear, acute, convex 

 above and obtusely carinate beneath, narrower than the cotyledons 

 and several times longer. 



No. 3. Pinnatisect with a few distant, linear, acute segments 

 by far the longest towards the apex of the leaf. 



No. 4. Similar, rather more divided. 



Nos. 5-7. Two to three times pinnatisect ; ultimate segments 

 linear or linear-lanceolate, acute. 



Chrysanthemum carinatum, Schousb. (fig. 472). 



Primary root long, tapering, flexuose, giving off long lateral fibres. 



Hypocotyl erect, 3-5 cm. long, 2 mm. thick, herbaceous, glabrous, 

 shining, pale, slightly suffused with purple. 



Cotyledons oblong, obtuse, fleshy, convex above, subrevolute at 

 the margins, 1-1-5 cm. long. 



12 



