COMPOSITE 



129 



Cotyledons oval, obtuse, entire, sessile, connate at the base and 

 forming a cup round the plumule, glabrous, pale green, succulent 

 and without any discernible venation, 4-5*5 mm. long, 3-3*5 mm. 

 wide at the middle. 



Stem herbaceous, erect, terete, glabrous, annual, pale green ; 1st 

 internode 7-9 mm. long ; 2nd 3-10 mm. 



Leaves. Lower opposite, upper alternate, sessile, with a few alter- 

 nate, ascending nerves on each side 

 of the midrib, glabrous, subsuccu- 

 lent, light green above, paler be- 

 neath. 



First pair spathulate, subacute 

 or cuspidate, tapering gradually to 

 the base where they are again 

 slightly dilated and connate and 

 grooved on the upper side, many 

 times longer than the cotyledons, 

 decussating with them, entire, with 

 a distinct midrib but no other dis- 

 cernible venation. 



Second pair spathulate-cuneate, 

 trifid with ovate, acute, entire teeth 

 or lobules, or the lateral ones some- 

 times furnished with one or two 

 teeth on the posterior side, with a 

 lateral nerve proceeding straight 

 into each tooth, tapering gradually 

 to the base where they are again slightly dilated and furnished 

 with a number of slender, subulate or setiform teeth, carinate 

 beneath. 



Third pair cuneate, tapering to the base, deeply trifid, with oblong, 

 slightly toothed segments, each with a strong lateral nerve, carinate 

 on the back, somewhat dilated and connate at the base, for some 

 distance above which they are furnished with slender, subulate, or 

 setiform teeth. 



Seventh leaf alternate in specimen examined 



Achillea Millefolium, L. (fig. 470). 



Hypocotyl erect, terete, glabrous, pale green or almost colourless, 

 6-14 mm. long. 



Cotyledons shortly spathulate, tapering to the base and perfoliate, 

 with an indistinct midrib and two lateral nerves arising from the base 

 and passing round the cotyledon immediately within the margin to 



II. K 



?. Lonas inodora. 



Nat. size. 



