456 



INDEX. 



Tree Charts, 235; ferns, 33; form, 812; 

 growth, 311 ; photography, 312. 



Trees in Bartram Garden, 433 ; of Phila- 

 delphia, sketch of noted, 431. 



Trianea bogatensis, 19. 



Tribute to Prof. Thomas C. Porter, 239. 



Trichias, Banded-spore, 344. 



Trifolium Virginicum, 386. 



Trimble, Prof. Henry, 11, 23, 375, 390; 

 biography of, 363. 



Trinidad plants, 282. 



Trips of Moses Marshall, 105. 



Tritration of Ammonium Carbonate, 377. 



Tropical Botanic Station, 39S. 



Tropical forest, imaginary, 33. 



Trout, 1. 



Trustees of University, letter to, 13. 



Tsuga Pattoniana, 290. 



Tubers of Dioscorea species, 277, 



Tubulina cylindrica, Notes on Develop- 

 ment of, 343. 



Tuckerman, Dr., 180, 356. 



Tulip poplar, 311. 



Tulip tree, 25.5. 



Tunnel Rock, Fairmount Park, planted 

 with trees, 349. 



Tuolumne Big-tree Grove, 395. 



Tupelo, 255. 



Turkey boxwood, 433. 



Tyler, John.T., 185. 



Typha latifolia, 19. 



Tweedy, F., 29, 195, 282. 



Tweedia, 195. 



Twins of Weasel Branch, 314. 



Ulmus Americana, 256. 



Ulrica, Queen, of Sweden, 52. 



Uncle Isaac, 47. 



Underwood, Prof., 327. 



Unitas Fratrum, 127. 



University Extension Classes, 370. 



University of Pennsylvania, 40, 97 ; chair 

 of botany at, 7 ; Botanic Garden of, 

 17; History of, 182; oldest botanical 

 centre, 11. 



University of Upsal, 88. 



Umbilicaria, 96. 



Upsal, 88; M'Mahon's called, 117; Uni- 

 versity of, 88. 



Uredinese, Sydow's, 269. 



Utricularia, 150 : Mrs. Treat's studies on, 

 299. 



Use of Plants among Ancient Peruvians, 

 398. 



Vacation Cruising, 310. 

 Vaccinese, new plants of, 159. 

 Valerianella Woodsiana var. patellaria, 



341. 

 Valsei, Additions to, 346. 

 Valley of Mexico, Flora of, 398. 

 Value of Botanical Gardens, 372. 

 Vanduzen, Matthew, 432. 

 Vanilla, Varieties of, 378. 

 Van Vleck, .Tacob, 97. 

 Variation in plants, study of, 408. 

 Variation in Leaves, 327. 

 Vascular cryptogams, study of, 411. 

 Vasey, Dr. George, 16, 280, 327, 385. 

 Vauxhall Garden, 4:^3. 

 Vegetable fibres, 36. 

 Vegetable and Animal Cells, Structure 



and Division of, 368. 

 Vegetable Cell, Structure and Division 



of, 371. 



Vegetable Histology, 334. 



Vegetable Kingdom, Chart of, 234. 



Vegetable Kingdom, Lindley's. 284. 



Vegetable Materia Medica, 160; of the 

 U.S.. 162 



Vegetable Tissues, Staining of, 310. 



Vegetation of Yellowstone Hot Springs, 

 398. 



Venus flv-trap, 21 ; movement of leaves 

 of, ;^9. 



Venezuela Fungi, 271. 



Venezuela and Guiana, boundary of, 190. 



Veratrum viride. Structure of, 335. 



Verbena Tweediana, 195. 



Verbesina, Abnormal Flowers of, 398. 



Vernal Flora, Origin of, 396. 



Vernon Park, 184, 253; papaw trees of, 

 436 ; trees of, 4m. 



Viburnum plicatum, 255. 



Victoria regia discovered, 190. 



Victoria tank, 19. 



Villard's North Trans-Continental Sur- 

 vey, 2m. 



Vine, Fungous Diseases of, 'ii(\2. 



Vine growing at Spring Mills, Pa., 409. 



Viola, 150; monograph on, 130; Morph- 

 ology of, 390. 



Violet Perfume, 390. 



Viola tricolor. Botanical Study of, 390. 



Viola tricolor, var. arvensis, 242. 



Virgilia lutea, 433. 



Visit of Pennsylvania Horticultural 

 Society to Bartram Garden, 88. 



Vital Force, Correlation of, 310. 



Vitality of Girdled Limb, 301. 



Vitis pterophora, 401. 



Von Schweiuitz, L. D., 4, 9, 24. 



Wagner Free Institute, sketch ol, 32 ; 



Transactions of, 425. 

 Walmsley, W. H., 22. 

 Waifs of Fighting Rocks, 314. 

 Walling &, Gray's Topographical Atlas, 



239. 

 Walnuts, The, 236. 

 Walnuts at Bartram's, 70. 

 Walnut, The Black, 311 ; The Row Farm, 



:^11. 

 Walter's herbarium, 116. 

 Walton, Joseph, article by, 245; bio- 

 graphy of, 243. 

 Wanamaker, .lohn. garden of, 400. 

 Waples, Professor E. B., 393. 

 Warmer burial-ground, 46. 

 Washington, Arbor, 67. 

 Washingtonia, 147. 

 Washingtonia filamentosa. Salt and 



Sugar in, 365. 

 Watson's Botany of Clarence King's 



Expedition, 187. 

 Water-color sketches of flowers, 414. 

 Watson, Gavin, biography of, 246. 

 Waterhouse, John F., biography of, 172 



lectures of, 173. 

 Water hyacinths, 19 ; lilies, 19. 

 Water Storage and Conduction in Senecio 



prsecox, 398, 399. 

 Wax Palms, 33. 

 Weasel Branch, Twins of, 314. 

 Webb, George, Poem of, 43. 

 Weeds, Two Centuries of American, 291 ; 



of Maine, 358. 

 Welcome Spring Flowers, 293. 

 West Indian trees in Florida, 302. 

 West Indies visited by Dr. Rothrock, 307. 



4 



