Taxonomic Consultants, Reviewers, and Contributors 



John D. Ambrose 



Aletris 



Harperocallis 



Lophiola 



Narthecium 



Pleea 



Tofieldia 



Loran C. Anderson 



Chrysothamnus 



William R. Anderson 



Malpighiaceae 



George W. Argus 



Salix 



Daniel F. Austin 



Convolvulaceae 



John E. Averett 



Chamaesaracha 



Leucophysalis 



Margaranthus 



Quincula 



Rimo Bacigalupi 



Mimulus 



P.W. Ball 



Carex 



T.M. Barkley 



Senecio 



Arnica 



Emilia 



Erechtites 



Mary Barkworth 



Stipa 



Rupert C. Bameby 



Astragalus 



Errazurizia 



Dalea 



Marina 



Psorothamnus 



Sphaerophysa 



Spencer Ch. Barrett 



Pontederiaceae 



I. John Bassett 



Urticaceae 



Bernard R. Baum 



Tamarix 



Ernest O. Beal 



Nuphar 



Sagittaria 



Andrew J. Beattie 



Viola 



Lyman Benson 



Cactaceae 



Ranunculus 



Mark W. Bierner 



Helenium 



Norlyn L. Bodkin 



Melanthium 



Pierre Boiteau 



Apocynaceae (Caribbean) 



David E. Boulford 



Circaea 



Carol J. Brooks 



Forestiera 



Richard K. Brunimitt 



Calystegia 



Derek Burch 



Euphorbiaceae 



Judith M. Canne 



Galinsoga 



Philip Canlino 



Physostegia 



William N. Carvell 



Buckleya 



Nestronia 



Pyrularia 



Mohammed Nazeer Chaudhri 



Paronychia 



Curtis Clark 



Eschscholzia 



Robert T. Clausen 



Sedum 



Andre F. Clewell 



Lespedeza 



Janice C. Coffey 



Luzula 



Lincoln Constance 



Hydrophyllaceae 



Umbelliferae 



Tom S. Cooperrider 



Chelone 



Lysimachia 



Gratiola 



Thomas B. Croat 



Araceae 



Sapindaceae 



C.W. Crompton 



Urticaceae 



Garrett E. Crow 



Sagina 



Hannibal A. Davis 



Rubus 



Tyreeca E. Davis 



Rubus 



Alva Day 



Polemoniaceae 



Robert A. DeFilipps 



Crepis 



Hypochaeris 



Phlomis 



Ximenia 



Lauramay T. Dempster 



Galium (western U.S.) 



Kelloggia 



W. Michael Dennis 



Clematis 



Jamesianthus 



Melinda F. Denton 



Oxalis 



Sedum 



Robert D. Dorn 



Salix 



Wyoming & Montana 



plant distributions 

 Theodore R. Dudley 

 Aquifoliaceae 

 Viburnum 

 David B. Dunn 

 Lupinus 



James E. Eckenwalder 

 Populus 

 Staphyleaceae 

 Zamia 



Patrick E. Elvander 

 Saxifraga 



W. Hardy Eshbaugh 

 Capsicum 

 Richard H. Eyde 

 Cornus 

 Garrya 

 Nyssa 



Robert Faden 

 Commelinaceae 



David E. Fairbrothers 



Amphicarpum 



Microstegium 



Typha 



John E. Fairey 



Stachys 



Sylvia Feuer 



Olacaceae 



Santalaceae 



T. Richard Fisher 



Silphium 



F. Raymond Fosberg 



Hawaii 



John D. Freeman 



Trillium 



Paul A. Fryxell 



Malvaceae 



Albert M. Fuller 



Rubus 



Thomas C. Fuller 



Cirsium (California) 



Alwyn H. Gentry 



Bignoniaceae 



Paulownia 



Howard Scott Gentry 



Agave 



Dasylirion 



Hesperaloe 



Nolina 



Polianthes 



Yucca 



Zephyranthes 



John M. Gillett 



Bartonia 



Trifolium 



Fauria 



Menyanthes 



Obolaria 



Gentianella 



Gentianopsis 



Nymphoides 



Aaron Goldberg 



Melochia 



Peter Goldblatt 



Alophia 



Sphenostigma 



Nemastylis 



Trifurcia 



Frank W. Gould 



Camassia 



Gramineae 



Shirley A. Graham 



Lythraceae 



James W. Hardin 



Aesculus 



Calycanthus 



Kalmia 



Magnoliaceae 



Symplocos 



Erythronium 



Phytolacca 



Liquidambar 



Gelsemium 



Diervilla 



Raymond H. Harley 



Hyptis 



Vernon L. Harms 



Heterotheca 



Petasites 



Sparganium 



Ronald L. Hartman 



Caryophyllaceae 



Leroy H. Harvey 



Eragrostis 



Robert R. Haynes 



Najas 



Potamogeton 



Larry R. Heckard 



Cordylanthus 



Mimulus 



Orobanchaceae 



Orthocarpus 



Charles B. Heiser, Jr. 



Helianthus 



Viguiera 



Douglass M. Henderson 



Sisyrinchium (western U.S.) 



James Henrickson 



Fouquieria 



Frederick J. Hermann 



Carex 



Juncus 



William J. Hess 



Pedicularis 



Petrophyton 



Spiraea 



Steven R. Hill 



Malvastrum 



Eremalche 



Sphaeralcea 



Peter C. Hoch 



Epilobium 



Janet E. Hobn 



Githopsis 



Lewisia 



Noel H. Holmgren 



Castilleja 



Penstemon 



Patricia K. Holmgren 



Thiaspi 



James H. Horton 



Polygonella 



Richard A. Howard 



Coccoloba 



Michael J. Huft 



Euphorbia 



Galarhoeus 



Pedilanthus 



Chamaesyce 



Donald G. Huttleston 



Araceae 



Hugh H. litis 



Capparidaceae 



Robert S. Irving 



Hedeoma 



Poliomintha 



Rhododon 



Stachydeoma 



Howard S. Irwin 



Cassia 



Bill F. Isaacs 



New Mexico flora 



Duane Isely 



Leguminosae 



Terry D. Jacobsen 



Allium 



Robert K. Jansen 



Spilanthes 



Judith A. Jemstedt 



Chlorogalum 



