CAMELLIACE-ffl. (CAMELLIA FAMILY.) 103 



Order 21. TILJACE^E. (Linden Family.) 



Trees {rarely herbs), with the mucilaginous properties, fibrous bark, 

 valvate calyx, &>'c, of the Mallow Family ; but the sepals deciduous, petals 

 imbricated in the bud, the stamens usually polyadelphous, and the anthers 

 2-celled; — represented in Northern regions only by the genus, 



1, TILIA, L. Linden. Basswood. 



Sepals 5. Petals 5, spatulate-oblong. Stamens numerous : filaments coher- 

 ing in 5 clusters with each other (in European species), or with the base of a 

 spatulate petal-like body placed opposite each of the real petals. Pistil with a 

 5-celled ovary and 2 half-anatropous ovules in each, a single style, and a 5- 

 toothed stigma. Fruit a sort of woody globular nut, becoming 1 -celled and 1 - 

 2-seeded. Embryo with a taper radicle, and a pair of leaf-like somewhat heart- 

 shaped and lobed cotyledons, which are a little folded. — Fine trees, with soft 

 and white wood, more or less heart-shaped and serrate leaves (oblique and often 

 truncate at the base), deciduous stipules, and small cymes of flowers, hanging on 

 an axillary peduncle which is united to a leaf-like bract. Flowers cream-color, 

 houey-bearing, fragrant (The classical Latin name of the genus.) 



1. T. Americana, L. (Basswood.) Leaves green and glabrous or 

 nearly so, thickish. — Rich woods, May, June. — This familiar tree is rarely 

 called Lime-tree, oftener White-wood, commonly Basswood; the name (now obso- 

 lete in England) alluding to the use of the inner bark for mats and cordage. 



Var. pubescens. Leaves softly pubescent underneath, often thin. (T. 

 pubescens, Ait.) — Common from Maryland southward and westward. 



2. T. heterophylla, Vent. (White Basswood.) Leaves larger, 

 smooth and bright green above, silvery-whitened with a fine down underneath. 

 (T. alba, Michx.) — Mountains of Penn. to Kentucky and southward. 



T. Europ^a, the European Linden, which is planted in and near our 

 cities as an ornamental tree, is at once distinguished from any native species by 

 the absence of the petal-like scales among the stamens. This tree (the Lin) 

 gave the family name to Linnaeus. 



Order 22. CAMEIAjIACEM,* (Camellia Family.) 



Trees or shrubs, icith alternate simple feather-veined leaves, and no stipules, 

 the regular flowers hypogynous and polyandrous, the sepals and petals both 

 imbricated in aestivation, the stamens more or less united at the base with each 

 other (jnonadelphous or 3- b-adelphous) and with the base of the petals. — 

 Anthers 2-celled, introrse. Fruit a woody 3 - 5-celled loculicidal pod. 

 Seeds few, with little or no albumen. Embryo large, with broad cotyle- 

 dons. — A family with showy flowers, the types of which are the well- 

 known Camellia and the more important Tea Plant, — represented 

 in this country by the two following genera. 



* Name of same date as TERNSTR(EMIACE^, and preferable. 



