272 ORDER 26. TILLAGES. 



stigmas as many as carpels. Fr. dry or succulent, many-celled, or 1-celled by abor- 

 tion. Embryo in the axis of fleshy albumen. (Fig. 185.) 



Genera 88, specie* 350, native in all regions, but especially within the tropics. Like the Mal- 

 lows, the Lindenblooms abound in a wholesome mucilaginous juice, and a tough, stringy bark. 

 Of the liber of the European Lindens the celebrated Russia matting is manufactured, and in 

 India various species of Corchorus yield a good substitute for hemp, used for fishing-lines, nets, 

 rice-bags, etc. 



1. CORCHORUS, L. Sepals and petals 4 or 5 ; stamens QQ, rarely 

 as few as the petals; style very short, deciduous, stigmas 2 to 5 ; cap- 

 sule roundish orsiliquose, 2 to 5-celled, many-seeded. Herbs or shrubs 

 with yellow flowers. 



C. ailiquosus L. Branching, minutely hispid; Ivs. ovate-lanceolate, acuminate, 

 equally serrate, 4 times longer than the petioles ; caps, siliquose, linear, 2-valved. 

 About N. Orleans (Hale). St. slender. Lvs. 2 to 3' long, as wide, the vein- 

 lets running to the points of the serratures. Fls. 4-merous, with 12 or 16 sta- 

 mens. Pod nearly 2' long, the numerous seeds in 2 rows. 



2. TILIA, L. LINDEN OR LIME TREE. Calyx of 5, united sepals, 

 colored ; corolla of 5, oblong, obtuse petals, crenatc at apex ; stamens 



'Qo, somewhat polyadelphous, each set (in the N. American species) 

 with a petaloid scale (staminodium) attached at base ; ovary superior, 

 5-celled, 2-ovuled; capsules* globous, by abortion 1-celled, 1 to 2-seeded. 

 Trees. Lvs. cordate. Fls. cymous. with the peduncle adnate to the 

 vein of a large leaf-like bract. 



Staminodia 5, petaloid, opposite the petals Nos. 1, 2 



Staminodia none. Stamens scarcely cohering No. 8 



1 T. Americana L. BASS-WOOD. Lvs. broad cordate, unequal at base, mucro- 

 nate-serrate, acuminate, coriaceous, smooth and green on both sides : petals trun- 

 cate or obtuse at apex ; sty. as long as the petals. A common forest tree in the 

 Northern and Mid. States. It often grows to the height of 80f, the trunk straight, 

 and naked more than half this hight, and 3 to 4f diam. Lvs. 4 to 5' by 3 to 4', 

 those of the young shoots often twice these dimensions. Bracts yellowish, linear- 

 oblong. Petals yellowish white, larger than the Staminodia opposite them. 

 Fruit woody, greenish, of the size of peas. Jn. The inner bark is very strong, 

 and is manufactured into ropes. The wood is white, soft, and clear, much used 

 in cabinet work and in the paneling of carriages. 



ft WALTERI. Lvs. pubescent (but green) beneath. A large tree, Va. to Fla,, 

 low country, in woods and along rivers. It takes the place of the smooth var- 

 iety (a), which is common northward and along the Mts. to Ga. (T. pubes- 

 cens Ait. T. laxinora MX. T. Americana Walt). 



2 T. heterophylla Vent. WHITE BASS-WOOD. Lvs. obliquely subcordate, 

 scarcely acuminate, white and velvety beneath, with darker veins, glabrous, shin- 

 ing, and dark green above, mucronately serrate ; petals obtuse, crenulate ; Stam- 

 inodia spatulate ; sty. hairy at base, longer than the petals. Banks of the Ohio 

 and Miss. (Pursh.) Xot common. Trees 20 to 50f high. Lvs. very oblique at 

 base, 3 to 5' diam., well distinguished by the white surface beneath, contrasted 

 with the purple veins. Bract linear-oblong. Cal. hoary, gradually pointed. Pr. 

 globular. 



ft ALBA. Lvs. whitish and minutely tomentous beneath, serratures finp and 

 long-mucronate. Ky. and southward along the mts. Tree of great size. 

 One specimen (Rock Castle Co.) I judged to be 90f in hight, with wide-spread 

 branches, in open space. Reddish hairs in the axils of the veins beneath. 



3 T. Europ^a L. LIME TREE. Lvs. suborbicular, obliquely cordate, 

 abruptly acuminate, serrulate, twice as long as the petioles, glabrous except a 

 woolly-tuft in the axils of the veins beneath. A highly ornamental tree with 

 very dense foliage, cultivated in parks. Bracts rhombic-oblong, f Eur. (T. mi- 

 crophylla, etc.) 



