PITCH INDEX RED 537 
Pitch, native, i. 52 
PiTHECOLOBiUM, ii. 182; at Para, 
i. 5 
Pithecolobhun caulifiorum, i, 150 
PiURA, ii. 333 ; residence at, ii. 324-7 
PlURA and Chira, notes on, ii. 327 ; 
vegetation of, ii. 333-40 
Plagiochila, i. 383, 497, ii. 147, 
292 
Plantago, ii. 231, 232, 264 
Plantains, eaten by dogs, ii. 376 
Plants, gathered by swimming, i. 
169 ; estimate of species in 
Amazon valley, ii. 208 ; new 
species left in Uaupes, ii. 208 
Plants and animals, relations of, ii. 
362 
Platycarpum orinocettse, i. 470 
Platymiscium, ii. 402 
Pleopeltis, i. 48, ii. 291 
Pleroma, i. 469 
Plumiera, i. 467 
Fhmiiera phagedetiica, i. 67 
PODOCARPUS, ii. 265 
PODOSTEMACE/E, ii. 283 
Podostemas, i. 319 
PODOSTEMON, i. 418 
Podostemons, i. 267 
POLYBOTRIA, ii. 29O 
Polycarp^a, ii. 283 
Polycarpaa brasiliensis^ i, 146 
POLYGALA, i. 214, ii. 159, 318 
POLYGAL^, i. 157 
Polygala gracilis^ i. 467 
Polygala paniculata^ ii. 281 
Polygala stibiilis, i. 441 
Polygala' vaj^iabilis, i. 467 
Polygala vulgaris, i. 43 
PoLYGALE^, i. 453, ii. 182 ; and 
ants, ii. 401-2 
Polygonum, i. 399 
PoLYLEPis, ii. 265 
POLYPODIUM, ii. 205, 291 
Polytrichum jtniipermiiin, i. 71 
PONCIANO, pueblo of, i. 394 
Pontederia, i. 400, ii, 279, 301 
Pontederia eras si pes, i. 56 
PORAQUEIBA sp. , i. 339 
Porella, ii. 100 
Portulaca, ii. 283, 340 
POSOQUERIA, i, 42 
Pottery-making, i. 12 
PouROUMA, i. 26; sp,, i. 339 
PozuELOS village of, ii. 300 
Prain, Lieut. -Col., on Tococo, ii. 
409 
Primeval forests, i. 17 
Prosopis horrida, ii. 335 
Proteace/E, frequent on Rio Negro, 
i. 291 
Provisions for voyage, i. 273 
Psidia, ii. 286 
PsiDiuM, i. 339 
Psidiicjn ovalifoliuni, i. 163 
Psophia crepitans, i. 340 
Psychotria, i. 42 
Psychotria limb at a, i. 469 
Pteris, ii. 291 
Pteris caudata, i. 69, 218, ii, 99, 
291 
Pterobryum, ii. 100 
Pterocarpiis ancylocalyx, ii. 398 
Puca-yacu, village, ii. 123 ; track 
from, to the Napo, ii. 124 ; fine 
view of Andes from, ii. 127 
Puca-yacu river, ii. 117 
Puma in Tarapoto, ii, 80 
Pupunha palm, i. 223 
PuRUS river, ii. 2 
Qualea, i. 441 
Qiialea acuminata, i. 338 
QuiCHUA terms explained, ii. 511 
Quinine, local objection to, ii. 272 
QuiRABUENA, on Casiquiari, i. 391 
QuiRiQUiRY lake, i. 85 
Quito, visit to, ii. 212 
Racionales and Peones, i. 471 
RafflesiacE/E, plant allied to,ii. 207 
Raft, construction of, ii. 304 
Raft- voyage to Guayaquil, ii. 307 
Rain in desert, effects of, ii. 318 
Raleigh on the " Amazons," ii. 467 
Randia, i. 43, 468, ii. 287 
Ranunculus, ii. 181, 231, 249 
Raphia tcedigera, i. 45 
Rapids, first, on Rio Negro, i. 262 ; 
great, of Rio Negro, i. 278, 286 
Rattlesnake, escape from, ii. 10 
Raynal, Abbe, ii. 459 
Rebellion of 1835, i. 61 
Red Bark, supposed use of, ii. 272 
Red Bark forests, vegetation of, ii. 
276 
Red Bark trees, ii. 243 ; search for, 
ii. 237 ; seedlings and cuttings of, 
ii. 294-5 
