INDEX. 



351 



POLLEN-GRAINS. 



Pollen-grains, relative diameter of, 

 249 



Pohjantlms, 18 



Polygonaoae, 111 



Tolygonum Mstorta, 1 14 



fagopyrum. 111, 239; pollen- 

 grains, 251 



Poiitederia, 18S; pollon-grains, 1S6; 

 size of anthers, 252 



cordata, 187 



Posoqueria fragrans, 131 



Primrose, the common, 34, 67-71 



Primula, the, heterostyled species of, 

 14 ; summary on, 45-49 ; homo- 

 styled species, 49 



auricula, 30, 43, 48, 74, 223 



■ ■ equal-styled varieties, 273 



cortusoides, 44 



elata, 49 



elatinr, Jacq., 32 ; relative fer- 

 tility (if the two forms, 33, 47; 

 not a hybrid, 72, 73 ; equal-styled 

 var. of, 224, 273 



farinosa, 45 ; equal-styled var., 



224, 273 



hirsuta, 74 



involucrata, 45 



longiflora, 50 



mollis, 49, 50 



Scotica, 49, 60 



Sibirica, 49 



Sikkimensis, 44, 47 



Sinensis, 22, 30, 38 ; relative 



fertility, 39^3, 47, 49; long- 

 styled, 213; short-styled, 215; 

 transmission of form, constitution 

 and fertility, 216; equal-styled 

 variety, 218-223, 273, 274 



striata, 50 



veris, 14: difference in struc- 

 ture between the two forms, 15 ; 

 degrees of fertility when legiti- 

 mately or Illegitimately united, 

 25-32 ; fertility possessed by ille- 

 gitimate plants, 228-234 ; equal- 

 styled red variety, 234-238 ; long- 

 styled, 241 ; length of pistil, 261, 

 266 



vertioiUata, 49, 50 



villosa, 49 



vulgaris (var. acaulis Linn.), 



34 ; pollen-grains, 35 ; relative fer- 



SETHTA. 



tilitv of the two forms, 37 ; length 



of pistil, 266 

 Primula vulgnris,v3,T. rubra, 224-228 

 Prunella vulgaris, 299 

 Psychotria, 135 

 Pulmonaria angustifolia, 104, 239; 



anthers, 252, 287 



azurea, 1 1 



officinalis, 101, 238 ; number ol 



flowers, 248 ; pistil, 250 



Panunculus aquatilis, 311 

 Eay-florets, their use, 5, 6 

 Phamnus catTuirticus, 294, 307 ; siza 



of corolla, 308 



frangula, 297 



lancedlatus, 295 



Bhinanthus crista- galK, 4 

 Ruhiaceie, 125, 131-136 ; size of 



anthers, 252 ; stigmas, 2.=i3 ; 



number of heterostyled genera 



284, 285 

 Budgea eriantha, 135 

 Eue, the common, 9 

 Buellia tuberosa, 329 



S. 



Salvia, 308 



cleistogama, 340 



Sorminum, 8 



Satureia liortensis, 303, 304 



Scabiosa arvensis, 305 



■ atro-purpurea, 305, 307 



succisa, 305 



Scott, J., on Primula auricnla, 30, 

 43, 223; P, vulgaris, 34; (var. 

 rubra), 224 ; P. Sikkimensis, 44 ; 

 P. farinosa, 45, 224 ; homostyled 

 Primulx, 49, 50 ; hybrids, 74, 75 ; 

 length of pistil, 272; Hottonia 

 palustris, 51 ; Androsace vital- 

 liana, 53 ; Polyardhus, 58 ; Mit- 

 cliella repens, 127; Acanihacese, 

 313; Mrantliemumamhiguumhesac- 

 ing three kinds of flowers, 329 



Scrophularia aquatica, 147 



Serratula tinctoria, 280, 307 



Setltia aatimiuata, 122 



