Vlll I N D'E X 



Placenta, in ovary, 226. Ragi, see Elusine. 



Plantain, see Musa. Rain, drainage off trees, 103 ; R. 



Plumeria, 49, 349 ; P. acutifolia tree, see Pithcolobium saman 



*140; P. alba, *141. Randia, 334. 



Poaceae, 412. Ranunculaceae, 273. 



Poinciana regia, 198, 318. Ranunculus, 274. 



Poinsettia (Euphorbia), 376. Rape, see Brassica. 

 Pollen. 224, 233 ; Pollination, Raphe, of seeds, 48, 250. 



234; Pollinium, 225, 350, 402. Raspberry, see Rubus. 



Polyalthia, 277. Ravenala, 398 ; leaves, 37. 



Polygonum, stipules, 40. Reacting, 421. 



Polypetalae, 416. Respiration, 24-* 5, 418. 



Pome, 245. Rhizome, 116, 120. 



Pomegranate, see Pomegranate Rhododendron, 342. 



Punica. Rhodomyrtus, 326. 



Pongamia, 262, 318, Ricinus, 373 ; see Castor. 



Poppy, see Papaver ; Mexican Roots, ch. ix, 122 ; adventitious, 



P., see Argemone. 124; aerial, of Ephiphytes, 



Posterior, of floral parts, 201. 129, 401 ; branching of, *11 ; 



Potassium in plants, 21-3. clinging, 108 ; dragging, 128 ; 



Potato, Solanum, 115 ; Sweet-p., effect of air and moisture on, 



115,359. 103; fibrous, 122 ; functions, 



Pothos, 395. 13-23; of Banyan, 101; of 



Prickly pear, see Opuntia. climbers, 108, also Piper; r.- 



Prostrate, stems, 112. cap., *12; position of young 



Prunella, see Brunella. r. -hairs, 17; r. -stock, 114, 



Psidium, 325. 116; tapr., 122; tuberous, 115, 



Pterocarpus Papilionaceae), 128, also Asparagus. 



fruit, 262. Rosa the Rose, 108, 187 ; R. 



Pterolobium fruit, 262. apple, see Eugenia. 



Pulvins, 39, 325, 415 ; action of, Rostellum in orchids, 406. 



167. Rubber, 376. 



Punica, 326. Rubiaceae, 332. 



Pupalia, 372. Rubus, 108, 245. 



Pyrene, in drupes, 244. Rue, the Meadow, see Thalic- 



Pyxis, 242. trum. 



Ruellia, 362. 



R Ruminate endosperm, 254, 277. 



Runner, 114 ; reproduction, 120. 



RACEME and racemose inflores- Russelia, 177. 



cence, 189, *66, * 190, *317, Rutaceae, 304, 

 *321, *364, *410. 



Radical leaves = l.s from a 



rootstock. 



Radicle, 51. SAC of petal or sepal, 213. 



Radish, see Raphanus ; * 11, 128. Sal = Shorea robusta. 



* Denotes a figure. 



