INDEX 



543 



Musci, 341 



Mushroom, 453 



Mycelium, of Mushroom, 453 ; of 



Puccinia, 463 ; of Aspcrgillus, 



485 



Ovuliferous scale, 254 



Ovum of Angiosperms, 206 ; of Pine, 



257 ; of Fern, 316 ; of Moss, 349 ; 



of Marchantia, 374 ; of Fucus, 



404 



Navicula, 449 



Neck of archegonium, Fern, 316 ; 



of Moss, 349 

 Nectary, 142, 199 

 Nerves, 124 



Neutral conceptacles, 396 

 Nitella, 34, 409, 414, 416, 417 

 Node, of Sunflower, 86 ; of Maize, 



165.; of Equisetum, 329 

 Nostoc, 451, 475 

 Nucellus, 205, 256 

 Nuclear spindle, 85, 445 

 Nucleolus, 29, 449 

 Nucleus, 26, 28 ; division of, 85 

 Nucule, 476 

 Nutritive decoction of French 



Plums, 404 



Octants of embryo, 210 



(Edogonium, 421 



Oil, 222 



Oil of cloves, clearing by, 51 , 52 



Oncidium, aerial roots of, 185 



Oogonium, of Fucus, 402 ; of Cham, 

 416 ; of Coleochccte, 420 ; of (Edogo- 

 nium, 423 ; of Vaucheria, 432 ; 

 of Volvox, 438 ; of Pythium, 494 



Oophyte, of Fern, 311 ; of Equise- 

 tum, 340 ; of Moss, 341 ; of Mar- 

 chantia, 360 



Oosphere, see Ovum 



Oospore, of Coleochcete, 420 ; of 

 (Edogonium, 423 ; of Vaucheria, 

 432 ; of Volvox, 438 ; of Pythium, 

 494 



Operculum, 342, 352 



Oranges, hesperidin of, 120 



Oscillatoria, 452 



Ostiole, of Polysiphonia, 390 ; of 

 Fucus, 401 ; of Cetraria, 480 ; of 

 Claviceps, 483 



Ovary, 188, &c. 



Ovule, of Angiosperms, 205, &c., 

 of Pine, 255, &c. 



Pceonia, 37 



Paleaj, 287 



Palisade parenchyma, 127 



Pandorina, 439 



Pcnicillium, 490 



Pappus, 193 



Paraffin, 11 



Paraphyses, of Mosses, 347 ; of 



Laminaria, 408 ; of Agaricus, 



459 ; of Peziza, 471 ; of Lichens 



477 



Parmelia, 473 



Pelargonium, colouring of, 198 

 Pellia, 362, 365, 371, 377 

 Peltigera, 479 

 Peperomia, multiple eperdiinis of, 



139 



Perianth, 193 



Periblem, 112, 159, 184, &c. 

 Pericambium, see Pericycle 

 Pericarp, 216, 217, 225 

 Pericentral cells, 382 

 Perichsetia, 340 

 Periclinal walls, 80, &c. 

 Pericycle, 150, 181, 248, 250, 



304 



Periderm, 91 

 Peridium, 466 

 Perigonium, 340, 347 

 Perigynium, 376 

 Peristome, 342, 352, 355 

 Perithecium, 483, 487 

 Permanent mounting, 51 

 Peronospora, 495 

 Peronosporeae, 491 

 Pertusaria, 479 

 Petals, 187, fee. 

 Petiole, 122 

 Peziza, 470 

 Phaophycese, 391 

 Phallus, 461 

 Phanerogamse, 54 

 Phaseolus, root of, 148 

 Phellogen, 91 



