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POPULAR FLORA. 
1. American Linden or Basswood. Leaves green, smooth, or in some varieties downy underneath; 
a petal-like body in the middle of each of the 5 clusters of stamens. T. Americana . 
2. European Linden. Leaves smooth or nearly so ; stamens hardly in clusters, no petal-like bodies 
with them. Cultivated in cities, &c. as a shade-tree. T. Europcea. 
19. CAMELLIA FAMILY. Order CAMELLIACEAE. 
Shrubs or small trees, with alternate and simple leaves, not dotted ; large and showy 
flowers, with a persistent calyx of 5 overlapping sepals, and very many stamens, their fila- 
ments united at the bottom with each other and with the base of the petals. Anthers 
2-celled. Fruit a woody pod of 3 to 6 cells, containing few large seeds. To this belongs 
the grateful Tea-plant of China, and the 
Camellia, of our green- houses, Camellia Japonica. 
Loblolly-Bay, of swamps in the Southern States, Gord'onia Lasianthus. 
20. CHANGE FAMILY. Order AURANTIACEiE. 
Like the last, this family hardly claims a place here, being only house-plants, except far 
south. Known by having 20 or more stamens in one row around a single pistil, and the leaves 
having a joint between the blade and the winged or margined footstalk : they (and the fra- 
grant petals) are punctate with transparent dots, looking like holes when held between the 
eye and the light, which are little reservoirs of fragrant oil. Fruit a berry with a thick rind. 
Orange, Citrus Aurdntium. 
Lemon, Citrus Limonium. 
21. FLAX FAMILY. Order LINACEiE. 
Herbs with tough fibres in the inner bark, simple leaves, and oily seeds with a mucilagi- 
nous coat ; consisting only of the Flax genus, which is known by the following marks : — 
Flax. L'mum. 
Sepals 5, overlapping, persistent. Petals 5, on the receptacle. Stamens 5, united with each other 
Ht the bottom. Styles 5. Pod 10-celled and splitting when ripe into 10 pieces with one seed in each. 
Flowers opening only for one day. 
