148 ON SEEDLINGS 



Seedling. 



Primary root tapering downwards, wiry, flexuose, colourless, 

 annual. 



Hypocotyl ascending or erect, terete, glabrous, about I'l cm. 

 long, purplish-green. 



Cotyledons linear, obtuse, entire, fleshy, glabrous, persistent and 

 green, 1'5 cm. long. 



Stem herbaceous, annual, erect, angled, glabrous, pale green, 

 shining ; 1st internode 3'5 mm. long ; 2nd 5*5 mm. ; 3rd 1 mm. ; 

 4th 1-4 cm. ; 5th 5'5 mm. ; 6th l'G5 cm. ; 7th 1-45 cm. ; 8th 

 1-35 cm. ; 9th 1-45 cm. 



Leaves simple, alternate (first two opposite), glabrous, deep green, 

 fleshy, pinnatisect ; petioles channelled above, convex or subcari- 

 nate beneath, the lower dilated and semiamplexicaul at the base, the 

 upper amplexicaul, and auricled with a number of filiform, slender, 

 acute lacinias. 



Nos. 1 and 2. Opposite, pinnatisect, with two alternate pairs of 

 lateral segments and a terminal one ; all are linear and entire. 



No. 3 and all above it. Alternate, pinnatisect ; segments linear 

 and entire, or slightly toothed. 



No. 4. Pinnatisect ; segments alternate and subpinnatifid. 



No. 5. Pinnatisect, slightly auricled at the base ; segments pin- 

 natifid. 



Nos. 6 and 7. Bipinnatisect, auricled at the base with slender 

 lacinise ; primary divisions of leaf oblong-linear in outline ; secondary 

 divisions narrow, small, subulate-lanceolate, suddenly pointed. 



Nos. 8-10. Pinnatisect with linear, entire, cuspidate segments, 

 channelled on the upper side, as are all the primary divisions of the 

 leaves. 



TJrsinia anthemoides, Poir. 



Hypocotyl erect, terete, glabrous, 2-3 cm. long, light green or 

 colourless. 



Cotyledons very similar to those of U. speciosa, but subacute ; 

 indistinctly one-nerved. 



First leaves pinnatisect, with a few scattered hairs ; segments 

 linear, acute. 



Stem with the primary internodes undeveloped. 



Cryptostemma calendulaceum, R. Br. 



Primary root tapering, flexuose, succulent, colourless, with 

 fibrous lateral rootlets, annual. 



