INDEX. 549 
Parmelia caperata, Ach., 70, 71, 76-78, 80, 
83, 85, 110. 
— cetrarioides, Nyl., 59. 
— enteromorpha, Ach., 211. 
— fuliginosa, Nyl., 110. 
— — var. letevirens, Nyl, 66, 67, 09-71, 
73, 76-80, 83-85, 110. 
— levizata, Ach., 60, 65-67, 69, 72, 81, 82. 
— lugubris, Pers., 140, 211 ; abundant, 149. 
— Mougeotii, Schaer., 212. 
— omphalodes, Ack., 110. 
— physodes, Ach., 64, 65, 67, 70-74, 76, 
78, 80-83, 85, 110; its absence, 61. 
— — f. labrosa, Ach., 110. 
— perlata, Ach., 59, 60, 64-67, 69, 71, 73, 
74, 76-78, 80, 85. 
— pubescens, Pers., 217. 
— saxatilis, Ach., 58-61, 63-67, 69-71, 73, 
74, 76-85, 109, 212. 
— — var. furfuracea, Schaer., 65, 80, 55. 
— sulcata, Tayl., 59, 62, 69, 76, 88; men- 
tioned, 109, 116, 118. 
Parmeliaceæ of Lancashire, 103. 
Parnassia palustris, Linn., 281; region of 
floral fusion, 518, 524. 
Parochetus comuiunis Buch.-Ham., 466. 
Parus cœruleus, Linn., and nectaries, 417. 
— hibernieus, O.-Grant, on gooseberry- 
bush, 421. 
— tenerife, Tristr., 412, 413. 
Passiflora vitiensis, Mast., 23. 
Passiflorace: ot Fiji, 23. 
Patella, Linn., Algæ on shells, 196, 197. 
Pediastrum duplex, Meyen, 427. 
— Boryanum, Menegh., 427. 
Pedicularis palustris, Linn., 281. 
Pelekium velatum, Mitt., 315. 
Peliosanthes macrophylla, Wall., 482. 
Pellia epiphylla, Corda, 68. 
Pellionia elastemoides, Gaud., var. pube- 
scens, T'urrill *, 39. 
— filicoides, Seem., 39. 
Peltigera canina, Hoffm., 84, 107, 216. 
— — var, palmata, Duby, 107. 
— horizontalis, Hoffm., 109. 
— malacca, Fr., 216. 
— polydactyla, Hoffm., 107, 216. | 
— rufescens, Hoffm., 107, 216. 
— spuria, Leight., 107. 
Pelvetia caniculata, Decne. § Thur., defined, 
348. 
Pelvetia caniculata, var. coralloides, S. М. 
Baker, 328. 
— — ecad coralloides, S. M. Baker *, 349. 
— — ecad libera, S. M. Baker *, 349. 
— — ecad radicans, Fosl., 349. 
—- — megecad limicola, 5. М. Baker X 
Bohl.*, 349. 
— — var. libera, S. M. Baker, 326. 
— — var. radicans, Fosl., 328. 
Pentapyxis stipulata, Hook. f. § Thoms., 
410. 
Pentapterygium serpens, Klotzsch, 472. 
Peperomia Hevniana, Mig., 479. 
— pallida, A. Dietr., 35. 
Peranema cyathioides, D. Don, 484. 
Peridinieæ of Worcs., 427, 428. 
Peridinium anglicum, С. 5. West, 427, 428. 
Periploca graeca, Linn., 280. 
Periwinkle fl. damaged by birds, 421. 
Pertusaria alterimosa, Darb., 208. 
— amara, Nyl, 118. 
— communis, DC., 59-61, 69, 70, 72, 76, 
78, 80, 82, 54, 85, 118, 
— corrugata, Darb., 209. 
— dealbata, Nyl., 118. 
— erubescens, Wyl., 209. 
— faginea, Leight., 59-61, 69, 70, 72, 76, 
78, 80, 82, 84, 85. 
— globulitera, №, 59, 60-62, 64-66, 70, 
73, 74, 77, 84, 85. 
— leioplaca, Schaer., 65, 72, 76, 81, 118; 
mentioned, 125, 
— lutescens, Lamy, 73. 
— macloviana, Müll.- Arg., 209. 
— multipuncta, Nyl., 59, 60, 80. 
— solitaria, Darb., 209. 
— sp., 69. 
— velata, Nyl., 59. 
— Wulfeni, DC., 59, 60, 74. 
Pertusariacez of Lancashire, 118. 
Petasites fragrans, Presl, 521, note. 
Peucedanum palustre, Moench, 281. 
Peziza kerguelensis, Berk., 220. 
— leiocarpa, Curr., 219. 
— stercorea, Pers., 220. 
Phæophyceæ of Falklands, 165. 
Phaius maculatus, Lindl., 431. 
— Wallichii, Lindl., 481. 
Phalaris arundinacea, Linn., 282. 
Phaseolus vulgaris, Linn., visited by birds, 
409. 
