SILK— SKYBLUE 



469 



Silk Mockorange 



Philadelphus sericanthus 

 Silk-oak .... Grevillea robusta 



SiLKTASSEL-BUSH GaiTya 



SiLKTREE . . . Albizzia jiilibrissin 



SiLKviNE Periploca 



Chinese S P. sepium 



Grecian S P. graeca 



Silkworm Mulberry 



Moms multicaulis 

 Silky Dogwood, Silky Willow, etc. 



See Dogwood, Willow, etc. 

 Silkyleaf Broom . . Genista pilosa 



SILPHIUM ROSINWEED 



laciniatum . . . Compassplant 

 perfoliatum . . . Cup Rosinweed 

 terebinthaceum .... Dock R. 



Silver Acaena, Silver Alyssum, 

 etc. See Acaena, Alyssum, etc. 



SiLVERBELL Halesia 



Great S H. tetraptera 



Mountain S. . . . H. monticola 

 Two-wing S H. diptera 



SiLVERBERRY . Elaeagnus argentea 



SiLVERDUST Primrose 



Primula pulverulenta 



SiLVEREDGE DoGWOOD, SiLVEREDGE 



GouTWEED, etc. See Dogwood, 

 GouTWEED, etc. 



SiLVERLEAF COTONEASTER, SlLVER- 



LEAF Hydrangea, etc. See 



COTONEASTER, HYDRANGEA, etC. 



Silverline Thistle 



Cirsium diacantha 



SiLVERMARGIN DOGWOOD (ComilS COTl- 



troversa variegata] Cy) 



SiLVERNERVE FiTTONIA 



Fittonia argyroneura 



SiLVERPURPLE TrUMPET 



Bignonia argyreoviolascens 

 Silverspot Begonia 



Begonia albopicta 

 SiLVERSTAR Araucaria (Arciucaria 



excelsa glauca\ Cy) 

 SiLVERTip HiNOKi Cypress (Chamae- 



cyparis ohtusa alhosyicata] Cy) 

 Silvervein Creeper 



Ampelopsis henry ana 

 Silvervine . . Actinidia polygama 

 Silverweed . . Potentilla anserina 



Silvery Spleenwort 



Athyrium thelypteroide9 

 Simon Poplar . . . Populus simoni 

 Simons Cotoneaster 



Cotoneaster simonsi 



SINAPIS BRASSICA 



SiNGHARA-NUT . . . Trapa bispinosa 



SiNGKWA TOWELGOURD 



Luffa acutangula 

 Single Pink Hawthorn, Single 

 Roxburgh Rose, etc. See Haw- 

 thorn, Rose, etc. 

 Singleleaf Ash, Singleleaf Pine, 

 etc. See Ash, Pine, etc. 



SINNINGIA Gloxinia 



speciosa {Gloxinia speciosa) 



Common G. 



Many varieties of Gloxinia are in culti- 

 vation, but they are not sufficiently well 

 distinguished to permit the preparation 

 of an authentic list at the present time. 



Sisal Agave sisalana 



Sissoo Dalbergia sissoo 



"sisymbrium 



aquaticum 



Radicula nasturtium-aquaticum 

 nasturtium 



R. nasturtium-aquaticum 

 nasturtium-aquaticum Ag 



R. nasturtium-aquaticum 

 SISYRINCHIUM . Blue-eyed-grass 

 angustifolium {bermudianum) 



Common B. 



bellum Western B. 



Sitka Columbine, Sitka Spruce, etc. 



See Columbine, Spruce, etc. 

 SITOLOBIUM . DENNSTEDTIA 



SKIMMIA Skimmia 



japonica Japanese S. 



Skullcap Scutellaria 



Azure S. (Scutellaria baicalensis 

 coelestina] Cy) 



Baikal S S. baicalensis 



Yellow Alpine S. 



S. alpina lupulina 

 Skunk Currant . Ribes glandulosum 

 Skunkcabbage 



Symplocarpus foetidus 

 Skyblue Eryngo, Skyblue Lark- 

 spur, etc. See Eryngo, Lark- 

 spur, etc. 



