xiv 
Phyllody of ovule in Leontodon, vili., 128. 
‘sof sepals in Trillium, x., 71. 
Phyllosticta, n. sp., X., 49, 97; xi, 115. 
Physalacria, new genus of fungi, ix., *2. 
Physarella, new genus of fungi, ix., *61. 
Physarum, n. sp., Xi., 50. 
Physcomitrium megalocarpum, n. sp., xvi., 94. 
Pigments in cell-sap, xi., 35. 
Pilosity, deforming, vii., 120. 
Pine barren plants in Rhode Island, vii., 98. 
Pine-needles, xil., 102, 116. 
Pines. bifoliar spurs in, xil., 65. 
Pine-seed Wings, examination of, xiii., 245. 
Pinus Banksiana on the coast of Maine, xvi., 
194, 
basis ae egies with Corema Conradii, xvi., 
he ene height of, X., 82, 93, 118, 
“derivation in, xii, 41. ~ 
* edulis, and monophytla, xii., 50, 81. 
“* Englemann’s revision, vii., 39. 
* monophylia and Pinus edulis, xiii., 183. 
pungens in New Jersey, xiil., 121. 
“© rigida in Minnesota, x., 132. 
Pirus, heterophylly in, vil., 121. 
Plane-tree, gigantic, x1., 58, ! 
Plantago, proliferous, vil., 67. 
bee phyllody of bracts in, vii., 68, 
get somen ve. viii., 93. 
nomenclature, changes in, xi., 102 
‘Notes from Termiscouata County, Can- 
ada, xiv., 230. 
‘* stations wanted, viil., 71. 
“absorption of water by, x1., 71. 
* action of light on, vil., 110. 
«American, some new or little known, 
xiv., 51. 
** and plant-stations, vili., 45. 
* aquatic, dimorphic leaves, ix., 141. 
“«  Pallast, vil., 122. 
os ss New York City, viii, 141. 
“ Californian, new, ix., 31. 
“carnivorous, xi., 81. 
* chemical constituents of, x1, 108. 
*« collected by Dr. H. H. Rusby in South 
America, An enumeration of, xv., 
177, 247; XVi., 18, 61, 153, 189, 259, 324. 
“ drying of fleshy, ix., 92. 
‘“s electric phenomena in, ix., 142. 
exchanges, ix., 84. 
«© extra-limital, xil., 10. 
“ flowering of, in autumn, vil , 129. 
** Garber’s Porto Rico, vil., 96. 
“growing in trees, x., 58. 
“« growth of, influence of electrict light, 
* Vil, 59. 
“growth of, influence ofelectricity, vil., 
» 87. 
s¢ hairs of, vii., 71. 
«  histo-chemistry of, xi., 94, 
GENERAL INDEX. 
Plant of the Detroit River, xili., 93. 
* introduced, Summit County, Ohio, xill., 
187. 
“Long Island, xiv., 59. 
“© male and female, xii., 87. 
“© migrations of, ix., 11.° 
«« new species of, viii., 97, 121. 
«New York Clty, viil., 130. 
“* ~ popular names of, viii., 105. 
“preserving, xii., 121. 
“s  rarer of N. Y. City, vii., 51. 
‘s rarer, of the valley of the Hudson, xiil., 
6. 
‘© respiration of, xii., 63 
+ BO in, xi., 58. 
ae South-western, notes on, xi., 128. 
“Texan, new, x., 90. 
“© two new Florida, xiv., 8. 
‘s varying behavior of, vii., 20. 
“ Western, new, ix., 62, 121; x., 41, 96, 
126. 
oe occidentalis, xili., 247. 
‘eee torms ol, xiv., 58. 
siabcbed Nn. Sp., X., 49. 
Pleospora, D. sp., X., 53: XL, 75; 
Poa; Dap. x4 31: 
“ argentea, Howell, xv., 11. 
“ macrantha, Vasey, n. sp., XV., 1. 
“ rupestris, n. sp., xiv., 94. 
Poison oak harmless to cattle in Caltfornia; 
Vil, 97. 
Poisons, action of, upon flowers, x., oF 
Pollen bodies of angiosperms, vii., 60. 
“ exuberance of, Xil., 86 
“* Germination of, xvi., 130. 
«Measurements, Observations upon, 
“Xvi., 185. : : 
' Polygala, n. sp., x., 125 ’ 
“ 
Andina, spec. nov., xvi., 19. 
= formosa, spec. Dov., xvi., 19. — 
= and Lechea, note on, viii, 115. 
Polygonum Careyi, note on, Vili., 48. 
Polypetalae, some Californian, xili., 141, 216. 
pieccbronli of corolla in Houstonia, ix., 10. 
oe - ** Claytonia, ix., 140. 
ae “ gyncecium in Fraxinus, ix., 11. 
“ “ bracts in Hepatica, ix., 10, 
se) ** corolla in Trillium, x., 57. 
ws in Asclepias, viil., 132. 
“ " “ Eupatorium, viii., 132. 
a * Lysimachia, viii., 60. 
* ‘© Silphium, viii., 132. 
Polyporus, n. sp., xi, 26, 
is odd form of, xii., * 
bes volvatus and its varieties, vii., *102. 
Polytrichum Macounii. n. sp., xvi., 96 
Pontederia, maturation of seeds, vii., 97. 
Poplar, a large, xil., 79. 
“© Lombardy, origin of, xii., 74. ee 
Populus grandidentata, leaf forms of, xiii.,*89. 
