Novon is a quarterly, peer-reviewed journal and publishes short articles whose primary purpose is the establishment of nomenclature in vascular plants and bryophytes.
CONTENTS OF NOVON 2(3)
A New Species of Solanum Section Micracantha (Solanaceae) from Northeastern Brazil. Maria de Fatima Agra
A New Lowland Species of Tropaeolum (Tropaeolaceae) from the Venezuelan Guayana. Paul E. Berry
Nomenclatural Changes of Some Californian Castilleja (Scrophulariaceae). T. I. Chuang and L. R. Heckard
Jaltomata grandiflora (Solanaceae): A Rare Mexican Species. William G. D`Arcy, Thomas Mione and Tilton Davis IV
Two New Species of Paspalum (Poaceae: Paniceae) from Venezuela and Colombia. Gerrit Davidse and Fernando O. Zuloaga
Passiflora brachyantha (Passifloraceae), a New Species from the Andes of Southern Ecuador. Linda K. Escobar
Gurania sessiliflora (Cucurbitaceae), a New Species from Panama. Rachel Jane Hampshire
New Western North American Taxa of Arceuthobium (Viscaceae). Frank G. Hawksworth, Delbert Wiens and Daniel L. Nickrent
New Combinations in Stigmatodactylus (Orchidaceae). Paul Kores
New Combinations in Californian Lessingia (Compositae: Astereae). Meredith A. Lane
New Combinations in Californian Grindelia (Compositae: Astereae). Meredith A. Lane
Antiostelma (Asclepiadaceae), a New Genus from China. Li Ping-tao
Cynanchum wangii (Asclepiadaceae), a New Species from China. Li Ping-tao and Walter Kittredge
A New Species of Sarcostemma (Asclepiadaceae) from Malawi. Sigrid Liede and Ulrich Meve
Two New Combinations in Sechium (Cucurbitaceae) from Central America, and a New Species from Oaxaca, Mexico. Rafael Lira and Fernando Chiang
New Combinations and Nomenclatural Notes on the Genera Salacia and Tontelea (Celastraceae, Sensu Lato) in the Neotropics. V. Alberta M. W. Mennega
Validation of Subclass and Superordinal Names in Magnoliophyta. James L. Reveal
Validation of Ordinal Names of Extant Vascular Plants. James L. Reveal
New Natural Hybrids and Nomenclatural Novelties in Catasetum (Orchidaceae) from the Guianas, Ecuador, and Peru. Gustavo A. Romero and Rudolf Jenny
Taxonomic Notes on Mesoamerican Annona Section Atta (Annonaceae), Including Annona pruinosa sp. nov. George E. Schatz
Croton ascendens (Euphorbiaceae), a New Liana from Eastern Amazonia. Ricardo de S. Secco and Nelson A. Rosa
Ozobryum ogalalense (Pottiaceae), a New Moss Genus and Species from the American Great Plains. G. L. Smith Merrill
Notes on Psychotria Subgenus Heteropsychotria (Rubiaceae: Psychotrieae) in Mexico and Northern Central America. Charlotte M. Taylor and David H. Lorence
Hiemobotychium, a New Section of Botrychium Subgenus Sceptridium from the Southeastern United States. W. H. Wagner, Jr.
Realignments in American Croton (Euphorbiaceae). Grady L. Webster
Eight New Species of Ouratea (Ochnaceae) from Mesoamerica. Caroline Whitefoord
A New Species of Senecio Section Dichroa (Asteraceae--Senecioneae) from Brazil. Elsa Zardini