CRUCIFEILE 



H5 



Leaves simple, entire, cauline, alternate (first two opposite), ex- 

 stipulate, petiolate, with a hardly discernible venation, except in 

 very young leaves, where the nerves are alternate, ascending and 

 incurved, uniting with one another within the margin ; densely 

 covered on both surfaces with a much- 

 branched stellate pubescence or tomen- 

 tum and becoming hoary, especially in 

 dry places ; petioles tapering upwards, 

 from a stout, broadish, semiamplexicaul 

 base, semiterete, slightly convex or 

 flattened on the upper side, hoary with 

 a stellate tomentum like the leaves. 



FIG. 156. Matthiola incana. 

 Nat. size. 



FIG. 157. Mattliiola bicornis. 

 Nat. size. 



Nos. 1 and 2. Oblanceolate, tapering to the petiole, obtuse at the 

 apex and rounded. 



Nos. 3 and 4. Similar or somewhat narrower. 



Matthiola bicornis, DC. (fig. 157). 



Primary root as in M. incana. 



Hypocotyl very short, tapering into the primary root, colourless, 

 slightly glandular-pubescent, 1-5-3 mm. long. 



Cotyledons narrowly oblong- spathulate, tapering into the petiole, 

 or slightly glandular-pubescent at the margins, otherwise as in M. 

 incana ; lamina 5-6 mm. long, 2-2-25 mm. wide ; petiole flattened 

 above, convex on the back, glabrous or slightly glandular-pubescent, 

 slightly connate at the base, 3-5-5 mm. long. 



