INDEX. 
Page 
Populus alba, Z., 668, var. inte- 
grifolia, Ball, 668 ; nent 668. 
Portulaca oleracea . . . 972 
Potamogeton natans . . . . . 683 
pectinatus  . . . . . . 688 
Potentilla reptans . . . . 444 
Poterium anceps, 445 ; ancistroides, 
445; Duriei, 446; multicaule, 
445 ; sanguisorba, “Ads verru- 
cosum, 444, var. ee 
Pouchetia africana. . . . » 268 
parviflora. . . 268 
Powell, Rev. T., on the nature and 
mode of use of vegetable poisons 
employed by the Samoan Is- 
landers. . . vu ue CDD 
Prasium majus 2. «+ » . 620 
Primula vulgaris, various changes 
M lowr okn . =. 6 210 
Protoderma vinde . . . > . . 245 
Prunela vulearis . . < e = 620 
Prunus domestica. . . . . . 443 
prostrata . . . 443 
Psiadia Coronopus, M rodriguesi- 
ana, Balf. fil. sp. n., 1, 15. 
Psilanthus ? ebracteolatus, 271; 
Mannii, 271; ? tetramerus, 271. 
Psoralea bituminosa, 430, 739 ; 
bracteata, 430; dentata, 430, 
var. calycibus villosis, 430. 
Psychotria abrupta, 272; A fzelii, 
272; anetoclada, 272 ; " Ansellii, 
273 ; arborea, 272; Benthamiana, 
272; bidentata, 972; bifaria, 
272; brachyantha, 272; brac- 
teosa, 272; Brassii, 272; brun- 
nea, 272; ‘calva, 272; cornuta, 
272 ; crispa, 273; cristata, 272; 
Dona 272 ; foliosa, 272; ga- 
bonica, 272 ; globosa, 272; hu- 
milis, 272 ; infundibularis, 272; 
insidens, 272;  Kirkii, 272; 
Kolly, 272; konguensis, 272; 
lanceolata, Balf. fil. sp.n., 11,15; 
latistipula, 272; leptophylla, 
272; longevaginalis, 272; lon- 
gistylis, 272 ; lophoclada, 272; 
lucens, 272 ; Mannii, 272 ; mon- 
ticola, 272; mucronata, 273; 
nigropunctata, 272 ; nubica, 
273 ; obscura, 273; obtusifolia, 
272; owariensis, 272; pauridi- 
antha, 272; pumila, 272; punc- 
tata, 272; recurva, 272; rep- 
tans, 273; Schweinfurthii, 272; 
sciadephora, 272; setacea, 272 ; 
Soyauxii, 273 ; stictophylla, 
273 ; subherbacea, 272; sub- 
nuda, 272; subobliqua, 272 ; 
765 
Page 
subpunctata, 272; trachystyla, 
273; umbellata, 272 ; umbrati- 
cola, 273; virens, 273; Vo- 
geliana, 272 ; zambesiana, 272; 
zanguebarica, 273. 
Psychotries, tribe of Rubiacee  . 272 
Pteris aquilina, 28, 35, 735; ar- 
guta, 735 ; cretica, 35, 139, var. 
stenophylla, 27, 35; ensiformis, 
27; incisa, 28, 35; longifolia, 
27; pedata, 35; quadriaurita, 
128; remotifolia, Baker, n. sp., 
199 ; semipinnata, 27, var. dispar, 
27; serrulata, 27 ; triplicata, 
199. 
Pterocephalus depressus. . . . 493 
Pterogonium gracile . . . 738 
Puccinia corticioides, B. 4 Br. n. 
a. (PL T) 52 
Pulicaria arabica, 500 ; longifolia, 
501; odora, 501, var. macroce- 
phala, Ball, 501; Mauritanica, 
,901; sicula, 502. 
Punica Granatum . . . . . . 458 
Putoria calabrica . . 482 
Pyrostria trilocularis, “Balf. fil. sp. 
n., 11, 14. 
—— : variation of leaves of . 24 
Pyruscydonia . . . e . . . 447 
Pyxine p 3455 5:5 2226 
Quercus coccifera, 667, var. imbri- 
cata, 667; humilis, 666; Ilex, 
667, var. Ballota, 667; lusita- 
nica, 666 ; rund 666. 
Quivisia : 9 
laciniata, Balf. fil. sp me 12 
, heterophylly = 4 3129 
Radiola linoides . . . . . .878 
Radula complanata . 191 
physolbs =- . . . . e EOL 
Ramalina calicaris, 227 ; compla- 
nata, 215 ; cuspidata, var. crassa, 
211; intermedia, 211, 222; mi- 
nuscula, 218 ; rigida, 211; sub- 
fraxinea, 226, 227 ; ; eei ai 
222. 
Randia acuminata, 266 ; ? caudata, 
266 ; dumetorum, 266 ; gambica, 
266 ; genipeeflora, 267 ; hetero- 
phylla, Balf. fil. sp. n., 1L 14— 
variation of leaves of, 24; ma- 
crantha, 267 ; macrocarpa, 267 ; 
maculata, 267 ; malleifera, 267 ; 
Munsse, "267 ; octomera, 267; 
pallens, 266; Tubens, 266. 
Ranunculus uatilis, 304; arven» 
sis, 307 ; atlanticus, 306 ; Bau- 
