HORNPOPPY— HOWEA 



205 



HoRNPOPPY Glaucium 



Yellow H G. flavum 



HoRSEBALM Collinsonia 



CiTRONELLA H. . . C. Canadensis 



HORSECHESTNUT 



Aesculus ; A. hippocastanum 



See also Buckeye. 

 Baumann H. {A. hippocastanum 



haumanni] Cy) 

 CuTLEAF H. {A. hippocastanum 



laciniata^ Cy) 

 Damask H. {A. carnea plantier- 



ensis'\ Cy) 

 Japanese H. ... A. turbinata 

 Pyramid H. (A. hippocastanum 



pyramidalis] Cy) 

 Red H. {A. carnea] Cy) 

 Ruby H. {A. carnea hrioti] Cy) 

 Sawtooth H. {A. hippocastanum 



incisa] Cy) 

 Umbrella H. {A. h. umhracu- 



lifera] Cy) 

 Yellowspot H. (A. hippocastanum ' 



variegata] Cy) 

 HoRSEGENTiAN .... TriosteuHi 

 Common H. . . . T. perfoliatum 

 Horseradish . . Radicula armoracia 



HORSERADISH-TPEE 



Moringa; M. oleifera 

 Horseshoe Geranium 



Pelargonium zonale 



Horsetail Equisetum 



Horsetail Milkweed 



Asclepias verticillata 

 Horsetail-tree 



Casuarina equisetifolia 

 Hortulan Plum . Prigius hortulana 



HOSTA (Funkia; Niohe Ag) 



Plantainlily 

 caenilea {Niohe caerulea Ag; Fun- 

 kia caerulea; F. lanceolata; F. 

 ovata) . . . Blue Plantainlily 

 fortunei {N. fortunei Ag; F. for- 

 tunei) . Fortune Plantainlily 



See also hort. var. list following. 



lancifolia (N.japonica Ag; F. land- 

 folia) Lanceleaf Plantainlily 



See also hort. var. list following. 



plantaginea (A^. plantaginea Ag; 

 F. alba; F. subcordata) 



White Plantainlily 



HOSTA, continued 



plantaginea grandiflora (Niohe plan- 

 taginea grandi flora Ag; Funkia 

 grandiflora) . Big Plantainlily 



sieboldiana (A^. sieboldiana Ag; 

 F. sieboldiana) 



Cushion Plantainlily 

 Hort. var. of Hosta: 



Great Plantainlily (H. for- 

 tunei gigantea\ Cy; Funkia gi- 

 gantea) 



Wavyleaf p. (H. lancifolia un- 

 dulata] Cy; F. gigantea) 



HOULLETIA 



See ORCHID GENERA. 



HouNDSTONGUE . . . Cynoglossum 



Common H C. officinale 



Great H C. nervosum 



House Hollyfern 



Cyrtomium falcatum 



House-amaryllis 



Hippeastrum equestre 



Houseleek Sempervivum 



False H. . Sedum sempervivoides 

 Fringed H. 



Sempervivum fimbriatum 



Fuzzy H S. glaucum 



Globe H S. globiferum 



Hen-and-chickens S. soboliferum 



Italian H S. hirtum 



Mountain H. {S. tectorum pyre- 



naicum] Cy) 

 Pyrenees H. . . S. p3rrenaicum 



Roof H S. tectorum 



Sand H S. arenarium 



Spiderweb H. . S. arachnoideum 

 Vienna H. . . . S. mettenianum 

 Violet H. (Sempervivum tectorum 

 violaceum\ Cy) 



HOUSTONIA HousTONiA 



caerulea Bluets 



longifolia Longleaf B. 



purpurea . Mountain Houstonia 

 serpyllifolia . . Creeping Bluets 



HOVENIA Raisintree 



dulcis Raisintree 



HovEY Arborvitae (Thuja occiden- 

 talis hoveyi] Cy) 



HOWEA 



belmoreana (Kentia helmoreana) 



Belmore Palm 



