52 



THALAMIFLOR/E 



shrubs. They ail have a mucilaginous, wholesome juice, and many 

 of them are remarkable for the toughness of the fibres of the inner 

 bark. The East Indian genus Cor chorus supplies jute ; whilst the 

 Lime or Linden tree furnishes the material of which, in Russia, 

 bast mats are made. 



i. Tilia (Lime). Sepals 5, soon falling off ; petals 5, with or 

 yithout a scale at the base outside ; ovary 5-celled ; style 1 ; capsule 

 i-celled, not opening by valves, 2-seeded. (Name of uncertain 

 origin.) 



1. Tilia {The Lime or Linden tree) 



1. T. Europcca (Common Lime). Leaves obliquely heart-shaped, 

 smooth except for small tufts of downy hair beneath ; peduncles 

 springing from a leafy bract ; flowers very fragrant, of a grayish 



white colour ; capsules smooth. 

 This is the common Lime of avenues 

 and parks, and is a doubtful 

 native. A more probable native 

 is T. parvifolia (Small-leaved Lime), 

 whose small leaves are glaucous on 

 the under side, and the fruit 

 downy and slightly ribbed. Another 

 r ! C*\. \ '&'%& ff fmra ^^. var ^ e(; y mucn planted, though pro- 

 Y tPlk. i fiwft* ' b a bly not indigenous, is T. grandi- 



folia (Large-leaved Lime). The 

 leaves, which are much larger than 

 in either of the foregoing, are downy 

 beneath ; the young twigs are 

 hairy, and the fruit downy and 

 prominently ribbed. 



Tn ia Parvifolia (Small-leaved 

 Lime-tree) 



Natural Order XVIII 



HYPERICACE^E. The St. John's Wort Tribe 



Sepals 4 or 5, not falling off, unequal ; petals of the same number 

 as the sepals, unequal-sided, twisted when in bud ; stamens numer- 

 ous, united at the base into 3 or 5 sets ; ovary single ; styles 3-5 ; 

 fruit a capsule or berry, of 3 or 5 valves and cells, the valves curved 

 inwards ; seeds minute, numerous. Herbs, shrubs, or trees, with 

 opposite leaves, generally marked with pellucid dots, and yellow 

 flowers, inhabiting most parts of the world. Most of the species 

 are aromatic and resinous, and some contain a yellow juice, which 

 has been medicinally used for its astringent and tonic qualities. 

 The only British genus is that which gives the Order its name 

 Hypericum. 



1. Hypericum (St. John's Wort). Sepals 5 ; petals 5 ; stamens 



