190 



Mentzelia (in part) = Nuttallia 



Mohrodendron = Halesia 



Monniera = Bramia, Hydrotrida and 



Mecardonia 

 Onagra = Oenothera 

 Onoclea = Matteucia 

 Orchis (in part) = Galeorchis 

 Oxalis (in part) = lonoxalis and Xan- 



thoxalis 

 Oxygraphis = Halerpestes 

 Panicum (in part) = Echinochloa 

 Pedicularis (in part) = Elephantella 

 Phegopteris = Dryopteris 

 Picradenia = Tetraneuris and Hymen- 



oxis 

 Pieris (in part) = Neopieris 

 Pogonia (in part) = Isotria and Tri- 



phora 

 Polygonum (in part) = Tovaria, Per- 



sicaria, Bistorta, Tracaulon, Tiniaria 



and Pleuropterus 

 Polypteris = Othake 

 Polytaenia = Pleiotaenia 

 Potentilla (in part) = Sibbaldiopsis 

 Prunus (in part) = Padus 

 Pteris = Pteridium 



Rhus (in part) = Schmaltzia and Toxi- 

 codendron 

 Ribes (in part) = Grossularia 

 Roripa = Radicula, Armoracia and 



Neobeckia 

 Rudbeckia (in part) = Dracopsis 

 Rj-nchosia = Dolicholus 



Sanguisorba (in part) = Poteridium 



and Poterium 

 Saxifraga (in part) = Antiphylla, Lep- 



tasea, Micranthes, Muscaria, Chon- 



drosea and Hj-datica 

 Scabiosa (in part) = Succisa 

 Scolopendrium = Phyllitis 

 Sedum (in part) = Rhodiola 

 Sisymbrium (in part) = Norta 

 Sorghum = Holcus 

 Spliaeralcea = Phymosia 

 Spiesia = Oxytropis 

 Stenophragma = Arabidopsis 

 Taraxacum = Leontodon 

 Tecoma = Bignonia 

 Tetragonanthus = Halenia 

 Tillaea = Tillaeastrum 

 Tillandsia = Dendropogon 

 Tofieldia (in part) = Triantha 

 Tradescantia (in part) = Cuthbertia 

 Tunica = Petrorhagia 

 Ulmaria = Filipendula 

 Utricularia (in part) = Vesiculina, Lec- 



ticula, Setiscapella and Stomoisia 

 Vaccinium (in part) = Vitis-Idaea 

 Verbesina = Ridan, Phaethusa and 



Ximensia 

 Willughbaeya = Mikania 

 Woodwardia = Anchistea and Lorinseria 

 Wulfenia = Synthyris 

 Zephyranthes = Atamosco 

 Zygadenus (in part) = Anticlea, Toxi- 



coscordion and Oceanorus 



Perhaps some of us will grieve just a little wistfully at the 

 passing of old friends like Polygonum, Gentiana, Gerardia, Tecoma, 

 Taraxacum, Apium, Apios and many others. The death of 

 more recent acquaintances, for whom many never cherished 

 any really passionate longing, like Adopogon, Adicea, Brauneria, 

 Limnanthemum, Onagra and a host of others, will be mourned 

 more calmly. 



Those with carefully written up collections and herbaria will 

 be among the number to greet the hundreds of changes necessary 

 in specific names contingent upon the above list, with mingled 

 feelings. But nothing comes of stagnation, much by devoted 

 effort, nothing of intellectual indolence, much by activity, and 

 let the disgruntled keepers of herbaria and the like, say with 

 Kipling, cheerfully, even gratefully, 



" Many ways Thou has fashioned: All of them lead to the Light." 

 If Light in this connection postulates stability of nomenclature. 



