286 LIME 



sheath, globoid in bud. Pollen whitish, and polymorphic : 

 minute grains ovoid with 1 fold ; larger, ellipsoid- fusiform 

 truncate, with 3 longitudinal folds 18 30 //,. Capsule 

 3-angled, pyramidal. 



ft Flowers not on spikes; and the leaves not 

 small and crowded or imbricated. 



Flowers all regular, actinomorphic. 



r~l Flowers in cymes with a long bract adnate 

 to peduncle; stamens numerous, in clusters. 

 Flowers at least 8 10 mm. diameter, 

 greenish; not in spikes, and fruits not 

 capsular ; a carcerulus. 



Tilia europcea, L. Lime (Figs. 106, 107). Tree with 

 oblique cordate leaves, and protandrous flowers rich in 

 honey. 



The floral formula of Tilia is K 5 C 5 A x G (5). Cyme 

 pendent, many-flowered, about as long as the lamina, which 

 hangs over it as if roofing it in; repeatedly forked, and 

 nearly umbellate, on a stiff peduncle springing from the 

 middle of a ligulate, veined, yellowish-green, glabrous, mem- 

 branous and petiolate, axillary bract about as long as the 

 leaf and its petiole together. Flower rather small, sweet- 

 scented and secreting much honey. Petals yellowish- 

 white ; stamens about 30, longer than the petals. Pollen 

 yellowish-white, tetrahedral to ellipsoid or ovoid, densely 

 papillate, opaque, with 3 pores on the angles; about 

 30 40 p. Style single, as long as the hairy ovary. Fruit 

 small, sub-globose, slightly angular, reddish-brown. 



[The variety grandifolia has larger, hairy leaves; cymes 

 with fewer (2 3) and larger flowers, shorter than the 

 lamina and on a bract shorter than the whole leaf, and 

 flowering somewhat earlier. Fruit larger, more angular, 

 and harder.] 



