APEIL. 1 TO JUNE 30, 1921. 



99 



Papaya, Carica papaya, 53761. 

 Paspalum si)i>., 52920, 52021. 

 Fasniflora mulifoi-mia, 53180. 

 Pea, garden, PUum salivum, 53803. 

 Peach, Amygdalus pcrsica, 52898. 

 Pear, Pyrus communis, 53428-53441. 

 Peunisctum fjlaucum, 53063, 5362.3. 

 typhoideum. See P. ylaiicutn. 

 Pepper, (hipsioum annuum, 53857. 

 Pernettya muvronata, .5.3717. 

 Pei'sca SI) .53243 



uinerivami, 53182-53185, 53895. 

 yrufissimn. See P. amcricana. 

 I'er.siniinoii, DiospyroH consnttii, 53176. 

 Pciiccdtuium Dstnithium, .52860. 

 Phalaris hnJboaa, .53241. 

 Phaxcolux cdlraratus, ,52857. 



coccinrus, .53244, 53269 - 53272, 

 53500-53511, .53763, 53779, .53788, 

 5.3790, 5379»>-53799, 53801-53803, 

 .53806, 53809-.53S12, .53818, 53819, 

 53836, .53841, 53867, 53869-53872, 

 53879. 53894. 

 lunntuH, .53199-53215, 53273, 53274, 

 53762, .53780, 53835, 53868, .53891. 

 vulgaris, 5324.5-53261, 53275-53377, 

 53512-53.527, 53532, 53764-53778, 

 53781-.53787, 53789, 31791-53795, 

 53800, 53804, 53805, 53807, 53808, 

 53814-53817, .53820-53823, 53825- 

 53834, 53837-53840, 53842, 53873- 

 53878, .53880-53890, 53892, 53893. 

 PhiladclphuH acunrnatus, 53718. 

 bracliyhotrys, 53719. 

 incanus, 53720. 

 inodorus, 53721. 

 latifoUus, 53722. 

 satsumi, 53723. 

 serieanthus, 53724. 

 speciosissimus, 53725. 

 wilsonii, 53726. 

 Phlcum prateme, 53466, 53467. 

 Pigeon-pea, Cajan indicum, 53238, 



53856. 

 Pine, Pinus masso7viann, 53849. 

 Pinus via-Hsoniana, 53849. 

 Pisum sativum, .53863. 

 Pleiogynium solandri, .52897. 

 Plum, Prunus sp., .53427. 

 Poa sp., 53117. 



alpina, .53064, 53155. 

 caesia, 53065, 53156. 

 chaixii, 5,3066, .53157. 

 Polymnia eduUs, 52894. 

 Polypogon monspeliensis, .53067. 

 Potato. See Solunum tuherosum. 



Dunnotar Castle, Solanum tubero- 

 sum, 52901. 

 wild, Siolanum com.mersonii, 53846. 

 Prune, Prunus domcstica, 5.3402-53414. 

 Prunus spp., 53416-.53427, 53442. 

 armcniaca, 52914. 

 d07n estica, 53402-.53414. 

 ilicifolia. See Laurocerasus ilici- 



folia,. 

 mahaleb, 53415. 

 pcrsica. See Amygdalus persica. 



I'terocarpus erinaceus, .52912. 

 I'yracanthn gihbsii. .52938. 

 Pyrus coiintuDiis, .5,3428-53441. ' 



laosensis. See Malus laoseusis. 



mains. See Mains sylvcstris. 



f '(Did in uligiuosa. 5,3.587. 

 Ranunculus aconitifolius, 53158. 



auricomus, 53108. 

 Raspberry, Rubus spp., 53186, 53218, 

 53480-53482, .53625, 537,59, .53760. 

 53847. 

 Rhododendron brdchyvarpum, .53727. 



davidsonianum, 53728. 



decorum, 53729. 



raccni osum, 53730. 

 Ribcs rulgarc, .53220-.53237. 

 nice, Oryza saliva, 53861, .53862. 

 Ricinus communis, 52953, 52954, 53242. 

 RolUnia cmarqinata, 53616. 

 Rosa sp., 53743. 



cinnamomea. 53731. 



davidii, 537.32. 



elongata, .53733. 



longicusjns, 53734. 



mollis, .537.35. 



omcicnsis, 537,36, .53737. 

 pteracantha, .53738. 



pendulina. See R. cinnamomea. 



seraflnii, 53739. 



serial a, 53740. 



sinowilsoni. See R. longicuspis. 



webbiana, 5.3741. 



ivoodsii, 53742. 

 Rose. See Rosa spp. 

 Rubus spp , 53378, .53379, .53545. 



adenophorus, 52939. ' 



adenotrichos, 53219. 



alleghaniensis, .52940. 



biflorus quinqucflorus, 5^^,941, 

 53535. 



chroosepalus. .52942, 535.36. 



flosculosus, .52943. 



giraldianuJi, .52944. 



inopertus. .52945. 



lasiostylus, 52946. 

 dizygos, 52947. 



macraci, 534S0-534S2, 53625, 53759, 

 53760. 53847. 



omcicnsis, 53.537. 



parvifolius, 52948. 



plioenicnlasius. .52949. 



pubcsccns. .529.50. 



roscus. 53186. .5.3218. 



thibrtanus, 53538. 



vcitchii, 53.539. 



xantliocarpus, .52951. .53540. 

 Rye, 8ecale spp., 52884, .53069. 



Saccharum offlcinarum. 53528-53531. 

 Sage. See Salvia spp. 

 finlpichroa rlioinbo'dca, .5.3608. 

 Salvadora pcrsica. 5.3S45. 

 Salvia pratcnsi.'<. .53068. 



squalens, 53757. 

 Sapote, white, Casimiroa spp., 53491, 

 53496. 



