596 THE GARDENER’S ASSISTANT. 
Pine-apple (covt. )— 
Fruiting the pine-apple—length of time 
and treatment for, li, 303. 
Hamilton’s cultural system, il, 304. 
Insect pests—treatment of, 11, 306. 
Jamaica, cultivation in—manures, &c. used, 
ii, 305; form and prices of fruit grown 
for English market and extent of ex- 
port trade, il, 305, 306; list of vars. 
grown, ll, 306. 
Light—supply of, position of plants in re- 
setting after shifting, li, 304. 
List of best vars., descript. and illusts., 11, 
307, 308; Jamaica vars., 11, 306. 
Meudon cultural system, ii, 304. 
Moisture—watering directions and use of 
steam, il, 304. 
Origin of, and history of cultivation in 
Europe, ll, 301. 
Packing methods, ii, 377. 
Preserving— canning process, ll, 357. 
Propagation methods, 11, 306, 307. 
Soilsuitable—preparation of, use of manure, 
&c., 1, 303, 304- 
Temperature and air regulations—table of 
suitable temperatures, benefit of warm 
coverings on house, ii, 301, 302; bottom- 
heat, li, 303. 
Pine-beetle—treatment of, i, 328. 
Pine-trees—pruning, i, 256; investigations 
regarding culture of, i, 327; soil, species 
for special purpeses, and treatment of 
insect pests, 1, 327, 328; descript. and | 
division of aside of Pinus, 1, 331, 332; 
umbrella pine (illust.), descript. of, 1, 
333; screw-pines as stove plants, i, 553. 
Pinks—calendarial directions, i, 13; descript. 
and cult. of sea-pinks, i, 351, of hardy 
perennial species, &c., of Dianthus, 1, 
356, Indian pink (Spigelia marilandica) - 
1, 374; annual forms, illust. of Indian 
pink, &c., i, 391. 
Pinus—species, &c., descript. and classifica- 
tion of, i, 331-332. (See also Pine-trees.) | 
Pionea forficalis—descript. and treatment, 
iby (235) 
Piophila Apii—descript. and remedies, i, 
112. 
Pipes for heating purposes—construc- 
tion and length required for warming 
buildings, i, 216, 221; temperature 
regulations, i, 221, 222. 
Piptanthus nepalensis—descript. of, i, 
313- 
Pistia stratiotes—descript. and cult., i, 
383. 
Pistil—formation of, course of pollen-tubes 
(illust.), &c., 1, 51, 60. 
Pisum arvense and P. sativum —(illusts. ), 
descript. and, distinction between, i, 
479; cult. (see Pea—vegetable). 
Pitcairnea—species,&c., descript. andcult., 
1, 554- 
Pitcher-plants — descript., illusts., and 
cult. of Nepenthes, i, 477-479; of North 
American plants, 1, 514-516. 
Pith—formation of (illust.), i, 27, 36, 37. 
Pits and Frames— 
Alpine plant seedlings or cuttings—man- 
agement of frame for, 1, 346. 
Calendarial directions or management of, 
Thy Sy 5 (oh, tH 1) tere ey OP, 15, 17, 18, 20. 
Construction (illust.) and uses of, i, 204, 
205, wall-frames, 1, 210. 
Heating frames, boilers used aes 
and illust., i, 220, 221. 
Pittosporum—descript. and cult. of hardy 
species, 1, 313, of greenhouse and gar- 
den plants, i, 541. 
Placenta of ovary—formation of, i, 53. 
Plagianthus Lyalli (illust.), P. betu- 
linus, P. Lampenii—descript. and 
Cult. 1,313: 
Plane-trees—descript. and cult., i, 313. 
Planet Jr. single wheel hoe—iillust.), 
descript. and use of, i, 176. 
Plant boxes or tubs — (illust.), descript. 
and use of, 1, 192. 
Plant-breeding — extract from report on 
progress in, ll, 101. 
Plant diseases caused by fungi—(see 
Fungi). 
Plant enemies—(see title Insect and other 
Plant Enemies, also names of Insects). 
Plant-food—soil as a source of, i, 132; 
exhaustion of in soils, 1, 147 (see also 
Nutrition of Plants). 
Plant-houses— 
Calendarial directions for management of, 
Sh BH Eh Gy Oh Bin te iw, Ul} 27/5 HO). 
Draughts—structures preventing, 1, 20. 
[For construction of, see Glass - houses— 
special house construction and manage- 
ment—see titles Orchid-houses, Hot- 
houses, Greenhouses, &c. ] 
Plant, living—conditions of plant-life, i, 26, 
41; descript. and functions of green 
and colourless plants, microbes and 
symbiosis (illust.), 1, 29, 30; asexual 
and sexual conditions, i, 30, 31; flower- 
ing plants, i, 31; sensation and move- 
ment in plants (illusts.), 1, 31. 
Plant Organs, Structure and Func- 
tions— 
Caulicle and stem (illust.), 1, 34-37. 
Cell and its contents (illust.), 1, 27-29. 
Conditions of plant-life — structural ele- 
ments, i, 26; nutrition, 1, 41. 
Leaf and cotyledon, i, 37-41. 
Living plant (see title Plant, living). 
Radicle and root (illust.), 1, 32-34. 
Thallus, i, 20. 
_ Plant-protector against slugs, &c.—illust. 
and use of, i, 191, 192. 
Plantain-lily—descript. and cult., i, 350. 
| Plants— 
Absorption of nitrogen by leaves from 
ammonia supplied to them by the 
atmosphere, 1, 144 
Assimilation of free nitrogen by—-question 
of, 1, 141, 142, 146. 
Calendarial directions (see Calendar of 
Operations). 
Classification of—explanation of botanical 
arrangement and terms. 1, 65-67; in- 
door plants, meaning of term “‘ green- 
house plants”, &c., 1, 523. 
Decorative for “ules and table— names of, 
1, 6, 12. 
Food of (see titles Plant-food, Nutrition). 
Growth and branching, i, 45-48. 
Humus production—table showing amount 
of selected constituents in certain 
plants, i, 139. 
Movement and sensation in plants, influ- 
ence of light, heat, &c., 1, 31, 32. 
Movement of liquids in plants, i, 44. 
Sexual and asexual conditions, i, 30, 31, 
48, 53. 
Structure and Functions of (see title Plant 
Organs). 
Various types of plants, descriptions of— 
Cellular and vascular, i, 29. 
Dicotyledon and monocotyledon, i, 37, 39. 
Flowering plants (see that title). 
Green and colourless, i, 29-31. 
Leguminose order, i, 56. 
Moneecious and dicecious, 1, 49, 50, 59. 
Stamen formation—plants described as 
thalamifloral, calycifloral, corollifloral, 
epigynous, sy nandrous, i, 51. +” 
Thallophytes, i, 29, 32. 
(For Hybridization, Pruning, Propagation. 
&e., see those titles; special plants, see 
generic names, also titles Greenhouses, 
Perennials, Popular garden plants, &c. ] 
Plasmodiophora brassicze—development 
and treatment, i, 129. 
Platanus—species, &c., descript. and culkt.. 
1, S13: 
Platycerium—species, &c., descript., cult.. 
and illusts., i, 598, 599. 
Platyclinis—descript. of orchids, i, 580. 
Platycodon—species, &c., descript. and 
cult., 1, 370. 
Platycrater arguta—descript. of, i, 313. 
Platystemon californicus—descript. of 
annual, i, 397. 
Platytheca galioides—descript. and cult., 
of ay Bae 
Pleasure - grounds — (see title Flower- 
gardens and Pleasure-grounds). 
Plectroscelis concinna — descript. and 
treatment, 1, 96, 97. 
Pleroma—calendarial directions, i, 8; de- 
script., cult., and illust., i, 541. 
Pliers—descript. and use of, i, 178. 
Plum aphides—descript. and treatment, i, 
89. 
Plum grub and moth—iillust.), descript. 
and treatment, 1, 78. 
Plum saw-fly—descript. and treatment, i, 
77: 
Plumbago—calendarial directions, i, 15, 16; 
descript. and cult. of P. rosea and P. 
capensis as greenhouse and stove 
plants, i, 541, 554; for summer-bedding, 
1, 636. 
Plume poppies—(illust.), descript. of, i, 351, 
352. 
Plummet—descript. and use of, i, 183. 
Plums and Damsons— 
Calendarial directions, li, 533, 539, 548, 550, 
554, 550. 
Culture under glass—method and vars. for 
forcing plums, il, 160-162; orchard- 
house t treatment—construction of house, 
il, 274, potting, &c., i, 275, 276, ripen- 
ing fruit, 11, 277, vars. "suitable, i i, 278. 
Descript., origin, and history of plum, dam- 
son, sloe, and bullace, 1, 150, 151, 160. 
Disease and insect pests—list of insects, 
&c., il, 156; treatment of forced fruit 
and Japanese plums, i, 161, 162. . 
Gathering the fruit, il, 155. 
Illusts.—Prunus communis, ii, 151; Ameri- 
can hybrid plums, ii, 152; Californian 
prune, il, 153; comparative sizes of 
plums, H, 156. (See also sub-headings 
Lists, Pruning, Japanese plums.) 
Japanese plums—culture in U.S.A., precis 
of account on merits and vars., ii, 162, 
163; confusion of nomenclature, il, 163; 
lists of vars., descript., and illust., ii, 
163-166. 
Lists of vars., descript., and illusts.—plums, 
ii, 156-159, selections for special pur- 
poses, ii, 159, 160; damsons and bull- 
aces, il, ‘160, 161; forcing vars., li, 162, 
278; Japanese plums, ii, 163-166. 
Packing — materials and methods of, ii, 
374, 377, 378; boxes for, ii, 368, 369, 
371; baskets and crates, ii, 372. 
Planting trees—wall aspect, ii, 6, 8; orchard 
plans (illusts.) and directions, ii, 34, 
36, 37, 38; general directions, ii, 152; 
trees for forcing, il, 160, 161. 
Preserving—canning, var. for, ii, 165; pro- 
cesses of crystallizing, ii, 350, bottling, 
li, 351, drying or evaporating and vars. 
for, li, 151, 155, 353-356; various modes 
and vars. suitable, ii, 360, 36r. J 
Propagation—methods of, use of stones for 
raising stocks, &c., il, 155, 156. 
Pruning and training—standards, i, 152; 
wall-trees, dwarf pyramids and bushes, 
cordons, il, 153, 154; shoot and spur 
shortening and pinching (illust.), ii, 
153, 154; forcing trees, ii, 161. 
Root-lifting—method of, illust. of root, 
system of plum-tree, ii, 154. 
Soil and situation—ii, 27, 151; manures, 
&c., for soil, ii, 155, 162. - (See also 
sub-heading Planting.) 
Storing — method of, ii, 155, 387, cold 
storage, il, 388; shelves for stone 
fruits, ii, 383. 
Plumule—formation of, i, 34. 
Plusia gamma —(illust.), descript. and 
treatment, i, 92, 93. 
Plutella Cruciferarum — (illust.), de- 
script. and treatment, i, 84. 
Podocarpus — species, or descript. and 
cult., 4, 232. 
Podophyllum—species, &c., descript. and 
cult., 1, 370: 
