TILIACE.E. (LINDEN FAMILY.) 69 



3. H. TRiftNUM, L. (BLADDER KETMIA.) Somewhat hairy ; npper leaves 

 deeply 3-parted, with lanceolate divisions, the middle one much the longest ; 

 fruiting calyx inflated, membranaceous, with bristly ribs, 5-winged at the summit ; 

 seeds rough. Escaped from gardens into cultivated grounds. Corolla 

 pale greenish-yellow with a dark eye, ephemeral ; hence the name Fhwer-of-an- 

 hour. (Adv. from Eu.) 



H. SYR^ACUS, the SHRUBBY ALTH^JA of the old gardeners, is cultivated 

 about houses. 



ABELM68CHUS ESCULENTUS, the OKRA, and A. MANIHOT (the genua 

 characterized by the spathaceous calyx, bursting on one side and deciduous), 

 are common in gardens southward. 



GOSSYPIUM HERBACEUM, the COTTON-PLANT, is the most important plant of 

 this family. 



ORDER 24. TILJACE.E. (LINDEN FAMILY.) 



Trees (rarely herbs'), with the mucilaginous properties, fibrous bark, and 

 valvate calyx, fyc. 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. TIL<I A, L. LINDEN. BASSWOOD. 



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

 ing in 5 clusters with each other (hi 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, 

 honey-bearing, fragrant. (The classical 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 Basswowl; the name (now obso- 

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



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

 pubescens, Ait. T. laxiflora, Michx.) Common from Maryland southward 

 and westward. 



2. T. heteropliylla, Vent. (WHITE BASSWOOD,) Leaves smooth 

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

 alba, Michx.) Mountains of Penn. to Kentucky and southward. Leaves 

 larger than in No. 1, often 8' broad. 



T. EuROP-aEA, the ETJROPEAH LINDEN, which is planted in and near ouf 

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



