508 
INDEX AND YOCABULAKT. 
Unarm cd. Without thorns or prickles. 
Un'cinate. Hooked. 
Vnctuo'sus. Greasy, oily. 
Un'duLate. Waving, serpentine, gently rising 
and falling, Fig. 51, c. 
Unguis. A claw. 
Unguic'ulate . Inserted by a claw. 
U'nicus. Single. 
Uniflo'rus. One-flowered. 
Unilat'eral. C. rowing on one side. 
UnLin'ing, 77, 77, a. 
Ur'ceolatc. Swelling in the middle, and contract- 
ed at the top in the form of a pitcher. 
Use of the Corolla^ 74, o. 
of insects in the vegetable economy, 75, a. 
of the calyx, 68, d. 
U'tricle. A little bladder, 90. 
Uvula'ricB, 553. 
Vaccin'ia, 475. 
Vanil'la, or air-plant, PI. 4, Fig. 3. 
Vale'rian^ 165. 
Valeriana'ce^, 467. 
Valisne'ria, spiralis^ 84, a ; PI. 8, Fig. 1. 
Valves, 87, b. 
Vari'eties, 322. 
Vas'cular system, 60. 
fiber, 118. 
tissue, 53. 
Vault' cd. Arched ; with a concave covering. 
Veg'ctable anatomy, 10. 
'■ camel, 39. 
physiology, 114, c. 
constituents, 140. 
structure analogous to animal, 137. 
acids, 140, e. 
Vegeta'tion near the Arctic Ocean, 318. 
on the mountains of the torrid zone, 321. 
Veins., 53. 
Vein'lcts, 53. 
Venation of leaves, 53. 
Ventral suture, 80, Fig. 98. 
Ven'tricose. Swelled out. See Inflated. 
Ve'nus^ fly-trap, iJ19, PI. 3, Fig. 6. 
Vkrbkna'ck^, 488. 
Ver'mifuge. A medicine for the cm-e of worms. 
Ver'nal, Appearing in the spring. 
Verna uon, 51. 
Veron'ica, 168, a. 
Ver'rucose. Warty, covered with little protu- 
berances. 
Ver'satile, 79, a. 
Ver'tical. Perpendicular. 
Vertieillas'ter, 84. 
Verticil' iate. Whorled, havmg leaves or flowers 
in a circle round the stem. 
Verticils, 66. 
Vesic'ular. Made up of cellular substance. 
Fet'pertine, Flowers opening in the evening. 
Ve$ tels, annular, 118 
Vexil'lum. See Banner, 
Victo'ria regina, 231. 
Vil'lose. Hairy, the hairs long and soft 
Vil'lus. Soft hairs. 
Viola'ce^e, 413. 
Viola' ceous. Violet-colored. 
Vi'olct, 188. 
Vires' cens. Inclining to green. 
Vir'gate. Long and slender; wand-like. 
VirgiU'tum. A small twig, 
Viri'dis. Green. 
Virose'. Nauseous to the smell, poisonous. 
Vis'cid. Thick, glutinous, covered with adhcsiva 
moisture. 
VlTA'CEiE, 442. 
Vitel'lus, 99. 
Vit'reous. Glassy. 
Viviparous. Producing others by means of bulos 
or seeds, germinating while yet on the old 
plant. 
Vol'atile oils, 140. 
Vol'va, 68, c ; 290. 
Vul'nerary. (From vulnus, a wound.) Medi- 
cines which heal wounds. 
fVa'ter cow-bane, 190. 
fFax, 140, c. 
Wedge-form. Shaped like a wedge, rounded at 
the large end, obovate, with straightibh sides 
Wheel-form, 72. 
Wheel-shaped. See Rotate, 
White pond'-lily, 231. 
Whorl'cd, Fig. 91. 
Whorls, 66. 84. 
of flowers, 108. 
of leaves, 40. 
Wild indigo, 216, Fig. 185. 
plants should be studied^ 214, a. 
turnip, 278. 
Wil'low, 282. 
herb, 207. 
Wings. The two side petals of a papilionaceoua 
flower. 
Wings, 73. 
Win'tergreen, 219. 
Witch'-hazel, 181. 
Wood. The most solid pai'ts of trunks of itom 
and shrubs. 
Wood, 128. 
Wood'-sorrel, 222. 
Xylos'teum, 300. 
Zalu'sian, 343. 
Zanthori'za, 194. 
Zanthoxyla'ce^, 434. 
Zingibera'ceve, 541. 
Zool'ogy. The science of nnlwlh. 
Zoophytes, 377. 
ZTaOPUYLLA'CIJB} 432. 
