INDEX. 
Potamophila, 55 ; leersioides, 55; par- 
viflora, 55; prehensilis, 55. 
Primula acaulis, act. carb. ammon. on, 
253; denticulata, var. capitata, 175 ; 
rosea, var., 175; sinense, act. carb. 
ammon, on, 278. 
Primulacee (Afghan), 175. 
Prionachne, 92. 
Proliferous Mignonette, Rev. G. Hens- 
low on a, 214. 
Prunus Padus, 142. 
Psamma, 91. 
Psammelyna, 133. 
Pseudoceresia, 36, 37; aureum, 37; 
cymbiforme, 37; repens, 37; stolo- 
niferum, 37. 
Pseudocynodon, 108. 
Pseudopoa, 124. 
Pseudosecale, 131. 
Pseudostachyum compactiflorum, 134. 
Psilopogon, 68. 
Psilostachys, 67. 
Psilotum complanatum, 297. 
Psilurus, 132. 
Pterium, 114. 
Pteroéssa, 117, 118. 
Pterygodium acutifolium, 346 ; alatum, 
946; atratum, 347; caffrum, 346; 
carnosum, 346; catholicum, 346; 
cruciferum, 346; inversum, 346; 
platypetalum, 346; venosum, 346; 
volucris, 346. 
Pterygostachyum, 67. 
Ptilagrostis, 81. 
Ptychophyllum, 44. 
Puccinellia, 126. 
Pulicaria vulgaris, 169. 
Punica granatum, 163. 
Putoria, 144. 
Pyrus aucuparia, 162. 
Quercus dilatata, 186; Ilex, 142; se- 
mecarpifolia, 145. 
Rabdochloa, 108. 
Raddia, 51. 
Rægneria, 130. 
Ranunculaces (Afghan), 148. 
Ranunculus acris, 245 ; afghanicus, 148 ; 
aquatilis, 149; Aucheri, 149; Cym- 
balaria, 149; demissus, 149. 
Raspailia, 59. 
Ratzeburgia, 69. 
Reana, 53. 
Reboulea, 116. 
Reimaria, 27, 34; aberrans, 34; oligo- 
stachya, 34. 
Relchela, 91. 
Reparative Processes in Vegetable Tis- 
sues, S. G. Shattock on, 1. 
LINN. JOURN.—BOTANY, VOL. XIX. 
391 
Report on Arctic Drift Woods coll. by 
Capt. Feilden and Mr. Hart, by Prof. 
M'Nab, 135. 
Reptonia, 142. 
Researches on Life-history of Hemileia 
vastatrix, by H. Marshall Ward, 299. 
Reseda odorata, var. prolifera alba, 
(ftnote) 214. 
Reynaudia, 24, 60. 
Rhamnee (Afghan), 155. 
Rhamnus persica, 142, 156. 
Rhaphis, 73. 
Rhizocephalus, 84. 
Rhododendron afghanicum, 146, 175; 
Collettianum, 175. 
Rhombolytrum, 111. 
Rhus, 142; Cotinus, 141, 156. 
Rhynchelytrum, 45, 60; grandiflorum, 
60; ruficomum, 60. 
Rhynchosia aurea, 160; minima, 160. 
Ripidium, 66. 
Ricinus communis, 186. 
Robinia-leaves, act. carb. ammon. on, 
278. 
Rochelia stylaris, 178. 
Roemeria, 119. 
Roots, F. Darwin’s exper. on, 220, 221, 
222, 223, 224, 225, 226, 227, 228, 
229; action of carb. of ammonia 
on, 239, 242, 257, carb. soda on, 
241; fuchsineon, 241 ; glycerine on, 
242; nitrate ammon. on, 241; osmic 
acid on, 241; phosp. ammon. on, 
241. 
Rootstock of Catananche lutea, 288. 
Rosa anserinmfolia, 161; Beggeriana, 
var. genuina, 161; Ece, 161; Eglan- 
teria, 161; moscheutos,11; Webbiana, 
var. genuina, 161, var. microphylla, 
161. 
Rosaceze (Afghan), 160. 
Roscoea purpurea, contrivance 
cross-fertilization in, 204. 
Rottboellia, 64, 68, 132; digitata, 68 ; 
hirsuta, 68; levis, 69; muricata, 68; 
myurus, 68; perforata, 69; rugosa, 
68 ; Sandorii, 69. 
Rubiacee (Afghan), 166. 
Rubus niveus, var. Aitchisonii, 161; 
purpureus, 161. 
Rytidospermum, 96. 
for 
Sacchares, 38, 64. 
Saccharum, 45, 65, 142; cayennense, 
66; Grifhthii, 143, 191; longifolia, 
66; Nareya, 66; pallida, 66; Sara, 
191 
Saccidium, 339; pilosum, 340. 
Sachs, opinion on Geotropism, 219, 
229. 
2L 
