TYPHACE, Cat., TIT., 52. 
UMBELLIFER&, Cat., I., 34, 40. 
Ulmus, Cat., ILL, 6 
Uncinula geniculata, 1V., 48. 
' heliciformis, v., 4. 
UNCINULZ of New York, ll., 48, 
Uredo Ari-Virginici, V. . 43. 
Uromyces Ari- Virginici, Vi 48. 
: Peltandre, V., 3, "2B. 
Urtica, Cat., ILI., 20. 
URTICACES, Cat., IIL., 6. 20, 28. 
Utricularia, Cat., I., 2°. 
cornuta, I, 12, 39. 
minor, IL., ‘18. 
subulata, B it ee 
Uvularia, Cat., IV., 17. 
cae te ms grandiflora, Piet 26. 
pie perfoliata, V., 26. 
- Vaccaria, Cat., 1.,.15; ae 32. 
- Vaccinium, Cat., IT., 
 -Valeriana, Cat., I., 42 ret 22. 
ee VALERIANACE, Cat, L, 
Ne Cat., IIL, 53: 51. 
- Vandalism, V., 39. 
ee Variations, W5 De 
Be Veratrum, in IV., 16. ie 
ms parv ev gee ade: 
_Verbascum, Cat., IL., 
ners Cat., IL, raat ties 
angustifolia, Le 31,. bis. 
fungus on, IV. ; 
_ VERBENACE&, Cat., II, aa, 
cae voroion Gee? iG. 
Soot chamzed: drys, ut, 32. 
ae “viboraum, Gate 17741. 
~ ba 
~ gucculata, TV.,18 
: ‘Varlegated, At 18. é : 
| VITACEA, Cat., ape 11, 18. 
Heetthorriine Cat., I. 
10 
fragrance of, IT., 18. eh 
pedata, white, I., 20; 22: IT., 23. ' 
var. bicolor, I, 223. I1., 23. 
renifolia, Il., 1. 
rostrata, I1., 17, 24. 
rotundilolia, L., 38. 
tricolor, var. arvensis, IL, 18, 
VIOLACER, Cat., LW. 
Vitis, Cat., 1, 17: ill, Boe os Br 4 
Engelmann’s, Lil , 39. ¥ 
species of, V., 1. 
vinifera, V., 2. 
Watson, Sereno’s roe ga ip to American 
Botany. Ts el Vig 
Watkins Glen, IV., 
White i mngntain, Map of ‘Aipiné Limits of, 
Willis, 0. R.’s Fie Jersey Catalogue, V., 28. 
Willows. TV.: 
hetee distinguished ata distance, 
Hi, 
‘of Amherst, Mass., III., 41, 44. 
of Brattleboro’, Vt., TiL., 26. 
Winter Blossoms, IT., 2. 
Winter, mild, I., 7. . 
Wolftia, Cat., III., 46. 
‘Columbiana, SF 
Woodsia, ate ay 3 i a 42. 
‘Xanthium, C > s, ae 
a Xanthoxylum,  orttiogelphy of 
Xanthoxyium, Cat, Ty th 
XYRIDACEH, ae 1V.525 
Xyris, Cat., 1V., 
Yucca angustifolia, IV., 63. 
filamentosa, I., 87, 52; hed §2. 
fertilization of, it, 37, b 
flowers of, ILL. 33. 
‘Zannichellia, Cat., IE. , 52. 
Zanthorhiza, Zanthoxylum, vid. Xantho—. 
Zizia, Cat., L, 40. 
Zostera, Cat., 2A eres 
