Tilia.] ACERINE^E. 53 



straight : cotyledons plane, foliaceous. Trees or shrubs, rarely 

 herbs, of which one genus alone is European. Leaves simple, sti- 

 pulated, often toothed. Flowers axillary. 



1. TILIA. Linn. Lime. 



Calyx 5-partite, deciduous. Petals 5, with or without a nectary 

 at the base. Fruit coriaceous, 5-celled, without valves, cells 

 1 5, 2-seeded. Name of obscure origin. 



Polyandria. Monogynia. 



1. T. europcea, Linn. Common Lime &r Linden Tree. Nec- 

 taries none ; leaves twice the length of the footstalks, quite 

 glabrous, except a woolly tuft at the origin of each vein be- 

 neath; cymes many-flowered ; fruit coriaceous, downy. Br. Fl. 

 1. p. 259. E. FL v. iii. p. 17. E. Bot. t. 610. T. intermedia, 

 De Cand. Lindl. 



Woods and hedge rows, probably not indigenous. Fl July. T? . 

 A large handsome tree, its flowers yellowish-green, on a stalked cyme, 

 springing from a large lanceolate foliaceous bractece, which falls off 

 with the fructified cymes. Fruit generally one-celled and one-seeded. 

 There are fine specimens of this ornamental tree to be seen at the old 

 lime walk in Stillorgan Park. Sir James E. Smith states, that an an- 

 cient lime, of great magnitude, which grew where the ancestors of Lin- 

 naeus had long resided, is said to have given them their family name, 

 Linn being Swedish for a lime tree. The bark of this, and* perhaps, 

 some other species, makes the Russia garden-mats called bast. Bees 

 collect much honey from the flowers. 



2. T. parvifolia, Ehrh. Small-leaved Lime. Nectaries none ; 

 leaves smooth above, glaucous beneath, with scattered as well as 

 axillary hairy blotches ; umbels compound, many-flowered ; 

 fruit roundish, brittle, nearly glabrous. Br. Fl. 1. p. 259. E. 

 Fl. v. iii. p. 20. E. Bot. t. 1705. 



Woods in the County of Down ; Mr. Templeton. " Perhaps the 

 only native lime tree of Britain," Mr. Edward Forster. Fl. 

 Aug. T?. 



ORD. 16. ACERINE^. Juss. Maple Family/ 



Calyx 5-rarely 4 9-partite. Petals the same in number, in- 

 serted around an hypogynous disk, alternate with the lobes of 

 the calyx, often of the same colour, rarely none. Stamens on 

 the hypogynous disk, often 8, rarely 5 ]2; anthers oblong. 

 Ovary didymous. Style 1 ; stigma 2. Fruit a samara, of 2 in- 

 dehiscent carpels at length separating, 1-celled, 1 or 2-seeded. 

 Seeds fixed to the base of the cell, without albumen, but with a 

 thickened inner coat to the testa. Embryo curved or convo- 

 lute. Cotyledons foliaceous, wrinkled : radicle inferior. 



