132 



ON SEEDLINGS 



Stem herbaceous, annual. 



Leaves. Nos. 1 and 2. Linear, obtuse, distantly toothed or lobed 

 about the middle of the lamina, amplexicaul at the base. 



No. 3. Linear-oblong, pinnatifid ; lobes 

 obtuse. 



No. 4. Oblong, pinnatifid ; lobes oblong, 

 subacute or mucronate, fleshy. 



No. 5. Similar, larger and toothed along 

 the narrow petiole-like part to the amplexicaul 

 base. 



No. 6. Oblong in the upper part and pin- 

 natisect, other-wise like No. 5. 



No. 7. Pinnatisect ; lobes pinnatifid or 

 toothed. This and the younger leaves more 

 or less glandular on the upper surface. 



Chrysanthemum segetum, L. 

 Primary root as in last species, annual. 

 Hypocotyl fleshy, colourless, tapering into 

 the root, T65 cm. long. 



Cotyledons very similar to those of the last 

 species, 1'35 cm. long, 4-5 mm. thick. 

 Stem herbaceous, annual. 

 Leaves simple, radical and cauline, oppo- 

 site, sessile, glabrous, more or less lobed or 

 pinnatifid, subglaucous-green above, paler be- 

 neath. 



First pair oblong, obtuse, deeply toothed with obtuse or acute, 

 ipiculate teeth, decurrent on the broad petiole-like base ; margin 

 entire ; midrib prominent. 



Second pair oblong, obtuse, pinnatifid, de- 

 current and serrate on the broad petiole-like 

 base ; lobes oblong, obtuse, dentate-serrate with 

 obtuse or acute, apiculate serratures. 



Matricaria nigellaefolia, DC. (fig. 478). 



Hypocotyl erect, terete, glabrous, 2-5 mm. 

 long, light green. 



Cotyledons spathulate, obtuse, entire, sessile, 

 but tapering towards the base, glabrous, 4-6 mm. 

 long, light green. 



Stem erect, short, herbaceous. 

 Leaves. First pair opposite (the others alternate), entire, cauline, 



