INDEX. 
Pachira aquatica, Aubl., 206, 209. 
Palme, 264. 
Palmoglea macrococca, Kütz , 280. 
Pandanez, 265. 
Paracephaelis, 22. 
tiliacea, Baill., 93. 
Pedalinex, 232. 
Pellia epiphylla, Corda, On a Tricho- 
derma Parasitic on, by W. @. P. 
Ellis, 102-107. 
Pellia, mentioned, 475. 
epiphylla, Corda, 469, 476. 
Penium, Bréb., 156, 281 
annulare, West, 281. 
australe, Racib., 157, 167. 
Clevei, Lund., 281. 
closterioides, Ralfs, 156 ; mentioned, 
158. 
crassiusculum, De Bary, 157. 
Digitus, Bréh., 282. 
tamellosum, Kütz., 282. 
Libellula, Nordst., 156 ; mentioned, 
158. 
— — forma interrupta, West, 156. 
—— var. intermedia, Roy, 156. 
margaritaceum, Bréb., 282. 
minutum, Cleve, 282. 
var. crassum, West, 282. 
Navicula, Bréb., 156, 167. 
forma granulata, 157. 
navigium, W. B. 'Turn., 282. 
rufescens, Cleve, mentioned, 281. 
spirostriolatum, Barker, 282. 
Pentadenaria, 334, 340. 
Pentandria, mentioned, 3. 
Peperomia trinervis, Ruiz d" Pav., 235. 
Pereskia, 226. 
Peronospora, 116. 
Petiveria alliacea, Linn., 234. 
Pettera, Reichb., 333. 
Phæophyceæ, 481, 485. 
Philydracex, 264. 
Phycastrum striolatum, Nág., 313. 
Phyllanthus montanus, Sw., . 
Phyllarthron comorense, Zoj., 229, 230, 
268. 
Phytolaccacese. 232. 
Phytophthora infestans, 111. 
Picea excelsa, Link, 259, 260. 
Pilea grandis, Wedd., 239, 240. 
muscosa, Lindl., 239. 
Pinanga Dicksonii, Blume, 265. 
Pinguicula caudata, Schlecht., 226. 
Pinus, 121. 
Piperaceæ, 235. 
Pistia Stratiotes, Linn., 266. 
Pistillaria micans, 171. 
Pisum sativum, Linn., 219. 
Platanaceæ, 240, . 
Platanocarpum, Korth., 24 ; menfioned, 
5. 
525 
Platanocarpum cordatum, Korth., 27. 
subditum. Korth., 30. 
Platanus orientalis, Linn., 240, 
Platytheca gallioides, Steetz, 205. 
Pleurotenium, Nag., 15), 285; men- 
tioned, 286. 
constrictum, /f. C. Wood, 985. 
dilatatuin, Cleve, 285, 
nodosum, Jund , 285, 
Sceptrum, W. West & G. S. West, 
285. 
tessellatum, Lagerh, mentioned, 
286. 
Trabeeula, Neeg., 159. 
trochiseum, W, West & G S. West, 
285; mentioned, 286. 
Plinthine, Reichb., 333. 
aggregata, Reichb., 365. 
Polygonacew, 234. 
Populus nigra, Linn., 257, 258. 
var, pyramidalis, Spach, 257, 
258. 
Porlieria hygrometrica, Ruiz e? Pav., 
212. 
Potamogeton, mentioned, 464. 
Potentilla fruticosa, Linn., 222, 
Pothos, 266. 
Loureiri, Hook. 4 Arn., 266, 267, 
268. 
Primula elatior in Britain : its Distri- 
bution, Peculiarities, Hybrids, and 
Allies, by Miller Christy, 170-201. 
Primula acaulis, Linn., 173, 174. 
——— var. caulescens, mentioned, 
174. 
——— X elatior, 199. 
—— X veris, 176, 186, 188, 195, 
199. 
brevistyla, mentioned, 174. 
digenea, 195. 
elatior, Jacq., 173. 
var. acaulis, 200, 
x veris, 199. 
farinosa, Linn., 173. 
intricata, 195; mentioned, 174. 
media, 198. 
scotica, Hook., 173. 
var. acaulis, 173. 
Thomasinii, Grenier & Godron, 195; 
mentioned, 174. 
variabilis, 174, 195. 
veris, Linn., 173, 174. 
veris [ var. ] elatior, 177. 
veris elatior pallido flore, 178. 
Prionium Palmita, 2. Mey., 264. 
Protococcus, preparations of, 130. 
Psalliota campestris, 171. 
sylvaticus, 171. 
Pterospermum acerifolium, Willd., 208, 
209. 
Punctaria, 479. 
