592 INDEX. 
Thecidium, 236. 
Thick, 472. 
Three-cornered, 449. 
Three-edged, 449. 
Three-lobed, 461. 
Three-nerved, 129. * 
Three-ribbed, 133. 482. 
Thread-shaped, 450. 
Thrice digitato-pinnate, 465. 
Throat, 167. 
Thyrse, 157. 160. 
Thyrsula, 158. 
Tigelle, 250. 
Tissue, bothrenchymatous, 107. 
— , cellular, *9. 296. 
, first generated, 297. 
, conducting, 197. 
, fibrous cellular, 13. 15. 
, granular woody, 22. 
, laticiferous, *35, *36. 
, membranous cellular, 13. 
compressed. 
15. 
, fusiform, 
14. 
, lobed, 14. 
, muriform, 
14. 
, oblong, 14. 
, prismatical, 
14. 
, sinuous, 15, 
, stellated, 15. 
, square, 14. 
, tabular, 15. 
, origin of, 11. 
, pitted, 21. 
, porous, 547. 
, utricular, 9. 
, vascular, 27. 
, vasiform, 21. 
, vegetable, 1. 
, vesicular, 9. 
, woody, 22. 
, genuine, 25. 
, glandular, 25. 
, strength of, 23, 24. 
Tissue, woody, thick-sided, 107 
Toise, 474. 
Tomentose, 59. 469. 
Tomentum, 59. 
Tongue- shaped, 449. 
Toothed, 135. 137. *461. 
Toothings, 137. 
Top-shaped, 447. 
Torn, 461. 
Torsiva, 485. 
Tortuous, 487. 
Torulosus, 450. 
Torus, 210. 
Tracheae, 27. 
Trachenchyma, *27. 35. 
, modified, 7. 
Trapeziform, 457. 
Tree, 72. 
Tree-like, 466. 
Trees, age of, calculated from the num- 
ber of annual zones, 95. 
, Baobab, 96. 
Tri, 495. 
Tri-costatus, 133. 
Triadelphous, 173. 
Triakenium, 240. 
Triangular, 457. 
Triangularis, 449. 
Trica, 271. 
Trichidium, 276. 
Trichotomus, 466. 
Tricornis, 450. 
Tridigitato-pinnatus, 465. 
Tridentatus, 460. 
Trident-pointed, 460. 
Trifariam, 493. 
Trifidus, 137. 461. 
Trifoliolate, 464. 
Trigonus, 449. 
Trijugus, 465. 
Trilobus, 461. 
Trimestris, 476. 
Trinerve, 133. 
Trinervis, 482. 
Trinodal, 160. 
Triparted, 137. 462. 
Tripennatiparted, 138. 
Tripennatisected, 138. 
Tripinnate, 465. 
Triple, 495. 
Triple-nerved, 129. 
Triple-ribbed, 482. 
Tripli, 495. 
Triplici, 495. 
Triplinervia, 133. 
Triplinervis, 482. 
Triplo, 474. 
Tripterus, 451. 
Triqueter, 449. 
Trisected, 137. 
Triserialis, 493. 
Triternate, 465. 
Trochlearis, 453. 
Trophopollen, 175. 
Trophospermium, 194. 
Trumpet-shaped, 450. 
Truncate, 460. 
Truncus, 70. 
ascendens, 70. 
Trunk, 84. 
Tryma, 235. *239. 
