HYPERICACE^E. ST. JOHN'S WORT TRIBE. 117 



exception of small tufts of downy hair beneath, scarcely 

 longer than their stalks ; peduncles springing from a 

 leafy bract, many flowered; capsule brittle. Peculiar 

 interest attaches to the Linden-tree, from its having 

 given a name to the immortal Linnaeus. For a fuller 

 account of this tree, the reader is referred to " The Forest 

 Trees of Britain," vol. ii Fl. July. Tree. 



* It is questionable whether any species of Lime is 

 indigenous in Britain ; that just described has the best 

 claim to be considered a native, but is not so well known 

 as T. Europcea, the common Lime of avenues and parks. 

 This species has flowers like those of the small-leaved 

 Lime, but larger leaves, and a smooth capsule the rind 

 of which is tough. T. grandifolia (Large-leaved Lime- 

 tree) has woody seed-vessels, which, as well as the leaves, 

 are covered with short down. 



ORD. XVIIL HYPERICACKE. THE ST. JOHN'S 

 WORT TRIBE. 



Sepals 4 or 5, not falling off, unequal, often fringed 

 with black dots ; petals of the same number as the sepals, 

 unequal-sided, twisted when in bud, often bordered 

 with black dots ; stamens numerous, free above, united 

 at the base into three or more sets ; ovary single ; styles 

 3 5 ; fruit a capsule or berry of several valves and cells, 

 the valves curved inwards ; seeds minute, numerous. 

 Herbs, shrubs, or trees, generally with opposite leaves 

 marked with pellucid dots, and yellow flowers, inhabit- 

 ing most parts of the world. Most of the species are 

 aromatic and resinous, and some contain a yellow juice, 

 which has been used in medicine. The only British 

 genus strictly belonging to this order is that which gives 

 it its name, Hypericum. The curious genus Parnassia 

 was formerly placed here, but is now removed to the 

 Order DROSERACE^E (p. 79). 



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

 5 ; stamens numerous ; filaments united into 3 or 5 sets ; 



