INDEX 
699 
Rigens (Lat.), rigid 
Riley, C., Yucca 
Ringens (Lat.), gaping 
Rings of growth, 157 
Ringworm shrub (W. I.), Cassia 
alata L. 
Riparius (Lat.), of river banks 
Ripple grass (Am.), rib-grass 
Riv., Rivinus 
Rivalis (Lat.), growing by brooks 
Riverweed (Am.), Podostemon 
Rivularis (Lat.), growing beside 
rivulets 
Roast beef plant, gladdon 
Robertson, 74 
Robin -run-in-the-hedge, ground 
ivy 
Rocambole (Am.), Allium Scoro- 
doprasum L. 
Rock - brake, curled , Crypto- 
gramme ; -cress, Arabis ; - gar- 
den, 8, 6 ; -rose, Helianthemum 
Rocket, Hesperis ; sea-, Cakile ; 
yellow-, Barbarea 
Rod, golden, Solidago 
Rod way, 189 
Roem., J. J. Roemer 
Rogue, a sport or variation from 
type 
Roman nettle, Urtica 
Root, 32, 36, 40; adventitious-, 
39, 40, 152, 174 ; aerating, 161, 
40 ; aerial-, 40 ; -apex, 105 ; 
- as suckers, 40 ; - as tendrils, 
172; - as thorns, 40 ; - as tubers, 
152 ; bitter-, Leivisia ; buttress-, 
39, 40, 190, 191; -cap, 37; 
clasping-, 174; -climbers, 173; 
fibrous-, 40 ; -hairs, 38 ; lateral, 
38 ; paint-, Lachnanthes ; para- 
sitic-, 39, 176; Pareira-, white, 
Abuta ; -rubber, Carpodimis , 
Clitandra ; -stock, 153 ; tap-, 
38 ; true-, 36 ; water-plant-, 160 
Rose, Rosa ; alpine-, Rhododen- 
dron ; Andes-, Befaria ; -apple, 
Eugenia ; -, attar of, Rosa ; -bay 
(Am.), Rhododendron ; Christ- 
mas-, Helleborus\ guelder-, Vi- 
burnum ; Jamaica- (W. I.), 
Blakea trinervia L. ; -mallow 
(Am.), Hibiscus ; -mary, Ros- 
marinus ; - of Jericho, Anasta- 
tica ; rock-, Helianthemum ; 
-root, Sedum ; -wood, East 
Indian, Dalbergia 
Rosin, Pinus ; -plant (Am.), Sit - 
phium 
Rostellate, beaked 
Rost ellu m , Orch idaceae 
Rostrate, beaked 
Rosulate, rosetted 
Rotaceus (Lat.), rotate, wheel- 
shaped, 77 
Rotang, rattan 
Rottb., Rottboell 
Rotund, orbicular-oblong 
Roucou, annatto 
Rouge, Carthamus 
Rowan, Pyrus 
Roxb., Roxburgh 
Royal fern, Osmunda ; - palm, 
Oreodoxa 
Rozelle, Hibiscus 
Rubber, 199, Euphorbiaceae , 
Moraceae , &c. ; African-, Lan- 
dolphia , Funtumia , &c. ; Bo- 
livian-, Sapium ; Borneo-, Wil- 
lughbeia ; Ceara-, Manihot ; 
Central American-, Castilloa ; 
Colombian-, Sapium ; Indian-, 
Ficus ; Ire-, Funtumia ; Lagos-, 
Funtumia ; Madagascar-, Lan- 
dolphia , &c. ; Mangabeira-, 
Hancornia speciosa Gomez ; 
Manicoba-, Ceara ; Mexican-, 
Castilloa ; Para-, Hevea ; Per- 
nambuco-, Mangabeira ; silk-, 
Funtumia ; virgen-, Sapium ; 
West Indian-, Castilloa 
Rubens (Lat.), blush-red 
Ruber (Lat.), red 
Rubiginose, rust-coloured, 53 
Ruderalis (Lat.), of waste places 
Rudimentary organs, 31, 68 
Rue, Ruta ; goat’s-, Galega ; 
meadow- , T halidrum 
Rufescens (Lat.), becoming red- 
dish 
Rufous, reddish 
Rugose, wrinkled (dim. rugulose), 
53 
