GLOSSARY OF TERMS. 



Tetrapetalhus, having four petals, pi. 7, fiff- 3. 



Thor7i, a rigid, acute appendage arising from the wood, pi. 36, fig. 4. 



Thread-shaped, elongated, cylindrical, and slender. 



Thrice pinnate, divided three tunes m a pinnate manner, pi. 30, fig. 12. 



Throat, the orifice of a corolla, pi. 8, fig. 3 * ; pi. 9, fig. 1, *• 



Thyrse, a mode of flowermg, page 74, pi. 35, fig. 4. 



Thyrsoid, inflorescence thyi-se-like, pi. 35, fig. 4. 



Tomentose, densely hairy. 



Toothed, cut at the margin so as to resemble teeth. 



Tootliiettcd, the margin furnished with little teeth. 



Torose, uneven. 



Tortuose, twisted. g 



TrnwAwM, having three stamens, pi. 17, fig. 3. 



Trichotomoiis, di\-ided into threes. 



Tricuspidate, ha^^ng three points. 



Trifarious, in a triple rank. 



Trifid, divided in three. 



Trigeminate, thrice paired. 



Trilocular, having three cells, pi. 12, fig. 5. 



Tritermtte, tlirice temate. 



Trivalved, having three valves, pi. 12, fig. 2. 



Truncate, blunt, cut off. 



Tuberculatc, invested with knobs and tubercles. 



Tuberous, having solid, fleshy, rovuidish roots, like the potatoe. 



Tumid, swelling. 



Tunic, a coat. 



Ttmicatcd, coated. 



Turbintae, spherical and depressed, having the form of a top. 



Turgid, swollen, puffed. 



U 



Umbel, a mode of flowering, page 73, pi 2, fig. 2 ; pi. 35, fig. 1. 



Umbelules, secondary or ultimate divisions of an umbel, pi. 2, fig. 2. 



Undivided, entire, without divisions. 



U>iar?ncd, without prickles or spines. 



Uncinate, hooked. 



Undulated, waved at the margin. 



Unequal, some longer thau others. 



Unguis, a claw ; the base of a petal, page 13, pi. 7? fig. 3, d ; pi. 9, 



fig 5, a. 

 Unilateral, all inclining one way. 

 Ujiilocular, one-celled, pi. 12, figs. 1 , 3. 

 Urceolate, pitcher-shaped. 

 Utricle, a little bottle or bladder. 



f'alvuhir, consisting of valves, page 18, pi. 12, figs. I, 2. 

 Veined, page 70, ])1. 37, iig. 7- 

 f'entricosc, mflated, ])1. 5, fig. 5. 

 Vermil, belonging to the Spring. 



Versatile, smnging on the summit of a stalk, like a vane. 

 Vertex; the uppermost point. 

 Vertical, ]icrj)cndicular. 



Verticillate, whorled ; when leaves encircle the stem, pi. 31 , fig. 1 1 . 

 Vesicled, invested with hollow excrescences. 



Vexillum, a standard ; the banner or uj)per petal of a papilionaceous 

 corolla, page 13, pi. 9, fig. 5. 



