IXDKX. 



G01 



508; flavicans, 556; intricate, 569; 



leptalea, 5G8 ; leucomela, 569; ob- 



scura, var. chloantha, 568, var. virella, 



571 ; parietina, 572 ; picta, 390 ; pul- 



verulenta, 571, f. regyptiacn, 571, /3. 



muscigena, 345, 350,* f. pannifbrmis, 



571 ; stellaris, 571. /3. tribacia, 354, 



var. y. marina, 354; subexilis, 396 ; 



tcnella, 568; ulothrix, 571 ; villosa, 

 569. 



Physciei, 396. 



Piaranthus, 162, 163. 



Pieea ajanensis, young shoot of, 547, 

 549 ; Alcockiana, (ftnote) 551 ; Maxi- 

 mowiczii, resfn-canals of, 549; sitch- 

 ensis, leaves of, 550, (ftnote) 551; tri- 

 color, leaves of, 550. 



Pierardia (lloxb.), 216. 



Pimeleodendron, 240, 260. 



Pinguicula grandiflora, 157; lusitanica, 

 158. 



Pinus Massoniana, 389. 



Piranhea, 215, 261. 



Placodium, 153; murorum, 565. 



Plagiorhegma (Maxim.), 377. 



Plants, absorption rain and dew bv 



green parts of, 313, 324; advantages 



of syringing, 325. 

 Platygyne, 238, 259. 

 Platysma cucullatum, 569 ; 



573; Fahlunense, 572; , 



573, f. ampullaceum, 572, var. fallax, 



f. coralloidea, 570 ; nivale, 569 ; 



Richardsonii, 577. 

 Platy stigma, 216. 

 Pleea, 406, 412, charac. of, 421 ; Sie- 



beri, 452 ; tenuifolia, 491. 

 Pleiostemon, 212. 

 Pleopeltis erythrocarpa, 403. 

 Pleraginea odorata, 333 ; rufa, 333 ; 



umbrosissima, 334. 

 Pleurosigma angulare, 11 ; longum, 10, 



Plukenetiea?, 236, 237, 258 ; penniner- 

 via, 238 ; verrucosa, 238 ; volubilis, 

 237. 



Poa pratensis, 388; sphondvloide*, 



388. 



Podadenia, 232, 264. 

 Podanthes, 163. 

 Podocalyx, 217. 

 Podosira hormoides, 11. 

 Podosphenia gracilis, 1 1 . 

 Pogonophora, 218, 261. 

 Poinsettia, 202, 219. 

 Polar Exped., Lichens of, bv Prof. 

 Fries, 346. 



Polemonium, absorp. leaf, 319. 



Polymastia bryophila, 366 ; intercedrns, 

 366. 



diffusum, 



glaucum , 





Polvcoccum sporastatia?, (ftnote) 350, 



370. 



Polygala jagonica, 379; sibirica, var. 



tenuifolia, 379. 

 Polygalaceae, N. China, 379. 

 Folygonacese, N. China, 385. 

 Polygonatum japonicum, 387; verticil- 



latum, 387; vulgare, 387. 

 Polygonum fagopyrum, 385 ; sibiricum, 



385. 

 Polv podium darseforme, 403 ; lineare, 



390; linearifolium, 290. 

 Polystachya, 313. 

 Poppigia chilensis, 496. 

 Populus balsamifera, var. laurifolia, 



387 ; tremula, 387. 

 Poranthera microphylla, 251. 

 Potamogeton crispus, 345 ; natans, 



345 ; peribliatus, 345 ; sp. ?, 281. 

 Potentilla chinensis, 381 ; flagellaris, 



381 ; multifida, 381 ; supina, 381. 

 Pra?alstonia, charac. of, 29 ; areehea, 

 291 ; cernua, 292 ; cocci nea, 291 ; 

 coriacea, 292 ; Matthevvsii, 292 ; mu- 

 cronata, 292 ; nuda,292; octopetala, 

 291 ; parvifolia, 292 ; reflexa, 292 ; 

 rufescens, 292 ; serratula, 292 ; tbese- 

 formis, 291 ; tomentosa, 292. 

 Prasiola Sauteri, 7. 

 Preservation of cut flowers, 326. 

 Primula cortusoides, 384. 

 Primula cea?, N. China, 384. 

 Protohopea, charac. of, 289 ; cernua, 



290 ; tinctoria, 290. 



Prunella vulgaris, 385. 



Primus japonica, 381 ; Laurocerasus, 



321, 322; lusitanica, 322; Padus, 



var. pubescens, 381 ; Pseudocerasus, 



381 ; sp. ? near P. japonica, (ftnote) 



375 ; Ssiori, 381 ; tomentosa, 381. 



Pseudocroton, 227, 262. 

 Pseudophyllanthus, 254. 



Pseudotsuga, (ftnote) 549. 



Psoroma aspereHum, 398; hypnorum, 



399; soccatum, 398; sphinctrinum, 



398, var. leprolema, 398. 

 Pteris aquilina, 389. 

 Pterococcus, 288, 258. 

 Pulmonaria, absorp. dew, 323. 

 Pulvini in Spruees, nature of, 547. 

 Purisantha, subgen., 165. 

 Putranjiva, 213/263. 

 Pycnanthera, 225. 

 Pvcnocoma, 237, 264. 

 Pycnothelia papillaria, 561. 

 Pyrenocarpci, 401. 

 Pyrus baccata, 382 ; chinensis, 382. 



Quercus, absorp dew, 323 ; MaeCor- 

 mickii, 387. 



