海量图书期刊资源,随时随地畅享阅读乐趣
A New Catostemma (Bombacaceae) from ColombiaJohn D. Shepherd and William S. Alverson · Brittonia · 1981
A New Age of DiscoveryMichael J. Donoghue and William S. Alverson · Annals of the Missouri Botanical Garden · 2000
Status of Tropical Plants-A Global PerspectiveReview by: William S. Alverson · Conservation Biology · 1990
Quararibea Pumila (Bombacaceae), a New Endemic from Costa RicaWilliam S. Alverson · Brittonia · 1984
Forests Too Deer: Edge Effects in Northern WisconsinWilliam S. Alverson, Donald M. Waller and Stephen L. Solheim · Conservation Biology · 1988
How Many Species of Spirotheca (Malvaceae s.l., Bombacoideae)?Peter E. Gibbs and William S. Alverson · Brittonia · 2006
Matisia and Quararibea (Bombacaceae) Should Be Retained as Separate GeneraWilliam S. Alverson · Taxon · 1989
A New Subspecies of Quararibea Funebris (Bombacaceae) From NicaraguaWilliam S. Alverson · Annals of the Missouri Botanical Garden · 1987
Species Concepts and Plesiomorphic SpeciesRichard G. Olmstead · Systematic Botany · 1995
Revision of Heppiella (Gesneriaceae)Lars Peter Kvist · Systematic Botany · 1990
A New Species of Acmanthera (Malpighiaceae)Anderson, William R. · Systematic Botany · 1980
Flora Mesoamericana, Volumen 4, Parte 1Snow, Neil · Systematic Botany · 2010
A Reappraisal of the Oncidioid OrchidsChase, Mark W. · Systematic Botany · 1986
Morphometric study of <i>Euchiton</i> (Gnaphalieae: Asteraceae)Flann, Christina · Australian Systematic Botany · 2010
<i>Cheiranthera</i> (Pittosporaceae)Cayzer, Lindy W.; Crisp, Mike D.; Donaldson, Stuart · Australian Systematic Botany · 2007
Revision of Rhytidosporum (Pittosporaceae)Cayzer, L. W.; Crisp, M. D.; Telford, I. R. H. · Australian Systematic Botany · 1999