266 ON SEEDLINGS 



seed and conforming to it in shape, less than half the length of the 

 cotyledons. 



EcMum canescens, Presl. 



Hypocotyl erect, terete, hairy, 2'5-3 cm. long, light green or 

 colourless. 



Cotyledons broadly rotund or ohlate, obtuse, shallowly emar- 

 ginate, petiolate, pubescent, green, indistinctly trinerved or almost 

 pinnatinerved ; petiole broad, flat, shallowly channelled above. 



Stem with the primary internodes undeveloped. 



Echium violaceum, L. 



Hypocotyl as in E. canescens, 1-1-2 cm. long. 



Cotyledons broadly oval, entire, obtuse, with broad flat petioles, 

 hairy, green, pinnatinerved as hi the leaves. 



Stem as in E. canescens. 



First leaves simple, entire, radical, opposite, oblong-oval, obtuse, 

 petiolate, exstipulate, hispid, green, pinnatinerved ; succeeding ones 

 alternate. 



Echium Decaisnei, Webb et Berth. 



Hypocotyl wiry, about 1'5 cm. long. 



Cotyledons rotund, concave, shortly petiolate, about 8 mm. long, 

 4'5 mm. wide. 



Stem erect or subflexuose, terete, and thickening upwards, woody, 

 hispid with white, broad-based hairs ; internodes numerous, short, 

 4-8 mm. long. 



Leaves cauline, alternate, simple, entire, exstipulate, petiolate, 

 numerous ; limb lanceolate, obtuse or acute, penninerved, tapering 

 to both ends, softly and densely hairy above with sunken nerves, pale 

 green on both surfaces, densely hairy beneath with prominent mid- 

 rib and lateral ascending nerves ; petiole channelled above, convex 

 beneath, dilated at the base and half amplexicaul, hispid, varying 

 in length according to the size of the leaf which gradually increases 

 successively from the base of the stem upwards. 



