INDEX OF STARCHES. 



Piper sidiEfolia. Seed, 287 



Piptatberutn multiflorum Bcivuv. Seed, 276 



Pircunia latbenia Moq. Sce<l, 2112 



Pisonia aculeata Linn. Seed, -03 



Pistia stratiotes Linn. Seed, 265 



texensis Kltzsch. Seed, 265 

 Pisum. Seed, 268 



Pisum sativum Linn. Seed, 65, 72, 174, 176, 178, 190, 



210, 268 



var. (Electric Extra Early) Hort. 



Seed, 407 



(Eugenie, Green) Hort. Seed, 402 



(Eugenie, Yellow) Hort. Seed, 404 



(Large White-Marrowfat) Hort. 



Seed, 409 

 (Mammoth Grey Seeded) Hort. 



Seed, 408 

 (Thomas Laxton) Hort. Seed, 406 

 Pitcairnia albucrefolia Schrd. Seed, 202, 264 



punicea Lindl. Seed, 202, 264 

 Plantago maritima Linn. Root-stock, 237, 271 



media Linn. Root-stoclc, 237, 271 

 Platanthera bifolia Rich. Tuber, 235 

 Plectopoma fimbriatum Hanst. Root-stock, 231 

 Plumbagella micrantha. Seed, 249 

 Plumbaginace. Seed, 248 

 Plumbago micrantha Led. Seed, 249 

 Poa nemorahs Linn. Seed, 281 

 Podophyllum peltatum Linn. Root-stock, 72, 239, 274 

 Polemonium reptans Linn. Root-stock, 237, 259 

 Polycarpsa teneriffse Lam. Seed, 291 

 Polycnemum majus A. Br. Seed, 289 

 Polygonaceae, 418420 



Underground parts, 236 

 Polygonum alpinum All. Trunk, 236 



aviculare Linn. Root, 236, 270 

 bistorta Linn. Root-stock, 188, 236 

 convolvulus Linn. Root, 236, 270 

 fagopyrum Linn. Seed, 181, 184, 188, 203, 

 254 

 var. Hort. Seed, 418, 419 

 orientale Linn. Seed, 203 

 tinctorium Lour. Seed, 202 

 viviparum Linn. Root-stock, 236 

 Polypodium distans Kaulf. Root-stock, 237 

 vulgare Linn. Root-stock, 237 

 Polypogon monspeliensis Dsf. Seed, 278 

 Polystichum thelypteris Roth. Root-stock, 233 

 Pommereulla royleana Steud. Seed, 280 

 Pontederia sp. Seed, 208 

 Portulaca grandiflora Hook. Seed, 290 



Root, 241, 261 

 megalantha Steud. Seed, 290 



Root, 241, 261 

 Potamogeton natans Linn. Seed, 209 



priElongus Wulf. Seed, 209 

 Potentilla aurea Linn. Root-stock, 263 



tormentilla Linn. Root-stock, 242 

 Pothos acaulis Liim. Seed, 209 

 Potomorphe sidsefolia Miq. Seed, 287 

 Primula calycina Dub. Root, 238, 260 

 glaucescens Mor. Root, 260 

 officinalis Jacq. Root-stock, 238 

 Protium pubescens. Dry cotyledons, 267 

 Prunus virginiana, 71 

 Psilurus nardoides Trin. Seed, 285 

 Psittacanthus vellozianus Mart. Seed, 219 

 Pteridophyta. Green parts, 268 

 Pterostegia drymarioides F. M. Seed, 202 

 Ptiloneilema plumosum Steud. Seed, 279 

 Punica granatum Linn. Root, 242 

 Pupalia prostrata Mart. Seed, 289 

 Puachkinia libanotica Zucc. Bulb. (See P. scilloides 

 var. libanotica.) 

 scilloides Adams. Bulb, 551 



var. libanotica Boiss. Bulb, 552 

 23 [ 



Puschkinia siccula Hort. Bulb. (See P. scilloides var. 



hbanotica.) 

 Pyrola rotundifolia Linn. Root-stock, 238, 260 

 Pyrus communis Linn. Seed, 267 

 malus Linn. Fruit, 262, 267 

 Quassia, 71 



Quercus. Seed, 59, 176, 178 



Quercus acuminata Sarg. Seed. (See Q.muehlenbergi.) 

 alba Linn. Seed, 421 

 ambigua Michx. Seed. (See Q. rubra.) 

 banisteri Michx. Seed. (See Q. iUcifolia.) 

 castanea WUld. Seed. (See Q.muehlenbergi.) 

 cerris Linn. Seed, 248 

 femina Mill. Seed. (See Q. pedunculata.) 

 ilicifolia Wangh. Seed, 248 

 mueUenbergi Englm. Seed, 423 

 montana WUld. Seed. (See Q. prinus.) 

 nana Sarg. Seed. (See Q. ilicifolia.) 

 pedunculata Ehrh. Seed, 181, 182, 248, 273 

 prinus Linn. Seed, 424 



var. acuminata Michx. Seed. (See Q. 

 muehlenbergi.) 

 monticoUa Michx. Seed. (See Q. 

 prinus.) 

 robur Linn. (See Q. pedunculata.) 



var. pedunculata DC. Seed. (See Q. 

 pedunculata.) 

 rubra Linn. Seed, 426 

 texana Buckl. Seed, 427 

 Quillaya, 72 

 Ranunculus aconitum Linn. Root, 228 



bulbosus Linn. Root, 217, 272, 867 



Pollen, 243 

 ficaria Linn. Root, 228, 239, 252, 868 

 flammula Linn. Root, 261 

 garganicus Ten. Root, 217 

 pyrenajus Linn. Root, 239 

 ruttefolius Linn. Root, 261 

 speciosus Hort. Root. (See R. bulbosus.) 

 thora Linn. Root, 261 

 Ranunculacese, 865-869 

 Reaumuria vermiculata Linn. Seed, 293 

 Restio ferruginosus Link. Seed, 286 



incurvatus Thbg. Root-stock, 256 

 Reussia triflora Endl. Seed, 208 

 Rhamnus purshiana, 71 

 Rheum hybridum Ait. Seed, 202 



rhaponticum Linn. Seed, 187, 202 

 undulatum Linn. Root, 257 

 sp. Root of rhubarb, 72, 257 

 Rhipsalis funalis Salm. Stem, 240 

 Rhizophora mangle Linn. Root, 228 

 Rhyncospora fusca R. S. Seed, 247 

 Richardiaaethiopica Hort. Rhizome. (SeeR. africana.) 

 africana Kunth. Seed, 286 



Rhizome, 451 

 albo-maculata Hook., 452 

 eUiottiana Knight, 449 

 solfatarre Hort. Rhizome. (Plate 16,fig.94.) 

 Richardsonia scabra Kth. Root, 215, 271 

 Riedleia corchorifoUa DC. Seed, 220 

 Rivina purpurascens Schrd. Seed, 292 

 Romulea rosea var. speciosa Baker. Bulb, 750 

 Rottbcella arundinacea Hchst. Seed, 201, 264 



campestris Nutt. Seed, 264 

 Rubus, 72 

 Rumex, 72 



acetosa Linn. Root-stock, 236, 270 

 arifoUus All. Root-stock, 236, 257 

 crispus Linn. Root, 236 

 maritimus Linn. Root, 236, 271 

 obtusifoUus Linn. Root, 236 

 patientia Linn. Seed, 203 

 sanguineus Linn. Root, 236 

 tuberosua Linn. Root, 257 

 Ruppia maritima Linn. Pollen, 243 



111 



