380 



STANDARDIZED PLANT NAMES 



POPULUS, continued 



adenopoda . . . Chinese Aspen 



alba White Poplar 



— holleana P. bolleana 



— pyramidalis Cy-Ag . P. bolleana 



See also hort. var. list following. 

 angulata (P. balsamifera Ar) 



Carolina Cottonwood 



— robusta P. robusta 



angustifolia {fortissima) 



Narrowleaf Cottonwood 

 aurea .... Van Geert Poplar 



Hort. var. of P. serotina. 



balsamifera (P. tacamahacca Ar) 



Balsam P. 

 balsamifera Ar .... P. angulata 

 berolinensis 



bolleana (P. alba pyramidalis Cy- 

 Ag; alba bolleana) 



Bolleana Poplar 



brevifolia P. simoni 



canadensis P. deltoides 



candicans Balm-of-Gilead Poplar 



canescens Gray P. 



caroli7ie7isis 



A name applied erroneously to Carqlina 

 Cottonwood, P. angulata, and to Caro- 

 lina Poplar, the latter in the hort. var. 

 list following. 



deltoides (canadensis; P. balsam- 

 ifera virginiana Ar) 



Southern Cottonwood 

 — monilifera Cy . . P. monilifera 

 engenei Cy . . . Carolina Poplar 



See hort. var. list following. 



fastigiata Lombardy P. 



Hort. var. of P. nigra. 



fortissima .... P. angustifolia 

 fremonti . Fremont Cottonwood 



graeca P. grandidentata 



grandidentata (graeca) 



Largetooth Aspen 

 italica .... Lombardy Poplar 



Hort. var. of P. nigra. 



koreana Korean P. 



lasiocarpa Chinese P. 



maximowiczi .... Japanese P. 

 monilifera (Populus deltoides mon- 

 ilifera Cy) 



Northern Cottonwood 

 nigra Black Poplar 



See also hort. var. list following. 



purdomi ...... Purdom P. 



POPULUS, continued 



pyramidalis 



This name has been used, erroneously, 

 for Lombardy Poplar. See hort. var. 

 list below. 



robusta (angulata robusta) 



False Lombardy Poplar 

 sargenti . . Sargent Cottonwood 

 serotina . Black Italian Poplar 



See also hort. var. list below. 



sieboldi Siebold P. 



simoni (brevifolia) . . . Simon P. 



See also hort. var. list below. 



suaveolens .... Mongolian P. 



The plant heretofore cultivated under 

 the name P. suaveolens is P. maximo- 

 wiczi. 



szechuanica . Szechwan Poplar 

 tacamahacca Ar . .P. balsamifera 

 tomentosa Chinese White Poplar 

 tremula .... European Aspen 



See also hort. var. list below. 



tremuloides .... Quaking A. 



vangeerti . . Van Geert Poplar 



Hort. var. of P. serotina. 



wilsoni Wilson P 



yunnanensis .... Yunnan P. 

 Hort. var. of Populus: 



Carolina Poplar (P. eugenei^ Cy) 

 Lombardy P. (P. nigra italica] Cy; 



fastigiata; italica; pyramidalis) 

 Narrow Simon P. (P . simoni fasti- 

 giata] Ar) 

 Silver P. (P. alba nivea] Cy) 

 Van Geert p. (vangeerti ; vangeerti 

 aurea; aurea) Hort. var. of P. 

 serotina. 

 Weeping Aspen (P. tremula pen- 

 dula] Cy) 

 Porcelain Ampelopsis, Porcelain 

 Heath, etc. See Ampelopsis, 

 Heath, etc. 

 Port Gregory Gum 



Eucalyptus calophylla 



PORTERANTHUS Ag . GILLENIA 

 Portiatree . . Thespesia populnea 

 Portugal-laurel 



Laurocerasus lusitanica 



Portuguese Bellflower, Portu- 

 guese Cypress, etc. See Bell- 

 flower, Cypress, etc. 



