234 CHESTNUT: LIME 



acuminate, regularly dentate, with sharply-prolonged 

 forward-curved teeth, into each of which one of the 

 pinnate veins passes. Thin, firm, glabrous, bright matt 

 green or somewhat shining, paler beneath ; young leaves 

 pubescent beneath with small stellate hairs. Petiole short 

 (525 mm.). Stipules about 15 mm. long. Leaves plicate 

 in bud. Autumn leaves yellow. 



Venation strongly strict-pinnate; midrib tailing off 

 into the apex, straight ; secondaries nearly straight to the 

 margins, each ending in a tooth : the lower slightly diver- 

 gent, the upper converging or not. Tertiaries connecting, 

 but not looped, beneath the dentate-serrate margins; 

 rather prominent, simple and branched. The lowest 

 secondary coming off at about 90; the middle and upper 

 secondaries at acute angles with the midrib. Each pair of 

 secondaries separated by a distance equal to -^ or less of 

 the length of the midrib, and often closer. Secondaries 

 simple, rarely forked, at angles of about 50 65 c ; the 

 lowest more open, the upper less so. Lowest secondaries 

 much shorter than those in the middle of the leaf, and 

 devoid of prominent outer nerves. Ultimate meshwork 

 very fine. 



** Leaves not lanceolate; but broader, ovate 

 or obovate to cordate, oblique; sharply 

 serrate or bi-serrate. 



+ Leaves heart - shaped, oblique ; venation 

 pseudo-palmate at the base. 



Tilia europcea,L. Lime (Fig. 83). Large tree. Leaves 

 typically cordate oblique, 510 cm. long, on long petioles; 

 or ovate-cordate to sub-orbicular acuminate. Acutely 

 serrate, except at the entire basal region, dark green and 

 glabrous above; paler, bluish glaucous, or pubescent, or 



