Novon publishes peer-reviewed, short articles, whose primary purpose is the establishment of nomenclature in vascular plants and bryophytes.

CONTENTS OF NOVON 19(1)

Two New Dioecious Species of Symplocos (Symplocaceae) from Southern Brazil. Joao Luiz M. Aranha Filho, Peter W. Fritsch, Frank Almeda and Angela B. Martins

Caryodaphnopsis fieldii (Lauraceae), a New Species from the Coastal Cordillera of Venezuela. Gerardo A. Aymard C. and Gustavo A. Romero Gonzalez

Cinnamodendron occhionianum, a New Species of Canellaceae from Brazil. Fabio de Barros and Jackeline Salazar

Una Nueva Especie y Combinacion en Wissadula (Malvaceae). Massimo G. Bovini

Three New Species of Brachystelma (Apocynaceae, Asclepiadoideae, Ceropegieae) from South Tropical and Southern Africa. P. V. Bruyns

Validation of the Name Sinoleontopodium lingianum (Asteraceae, Gnaphalieae). You Sheng Chen and Qin Er Yang

Two New Species of Pentagonia (Rubiaceae, Hippotideae) from Colombia and Ecuador. Xavier Cornejo

Agrostopoa (Poaceae, Pooideae, Poeae, Poinae), a New Genus with Three Species from Colombia. Gerrit Davidse, Robert J. Soreng and Paul M. Peterson

A New Name and a New Species in Matelea (Apocynaceae, Asclepiadoideae) from Brazil. Monique Britto de Goes and Jorge Fontella Pereira

Cuphea fluviatilis (Lythraceae), a New Species from Antioquia, Colombia. Shirley Graham

A New Species of Cyclanthera (Cucurbitaceae) from Alajuela Province, Costa Rica. Barry E. Hammel

Forestiera isabelae (Oleaceae), Una Especie Nueva Para Costa Rica. Barry E. Hammel and Xavier Cornejo

Cephalanthera nanlingensis (Orchidaceae), a New Species from Guangdong, China. Ai Qun Hu, Huai Zhen Tian and Fu Wu Xing

Validation of the Name Adiantum meishanianum (Pteridaceae), a Species Endemic to Taiwan. Yea Chen Liu, Yao Moan Huang and Wen Liang Chiou

A New Species of Meliosma (Sabiaceae) from Southeastern Brazil and Notes on the Genus. Julio Antonio Lombardi

Cnidoscolus monicanus (Euphorbiaceae), an Endemic New Species of Laticiferous, Non-Stinging Spurge Nettle from Western Mexico. Jose Aquileo Lomeli Sencion, Eduardo Sahagun Godínez and Victor W. Steinmann

Two New Species of Sonerila (Melastomataceae) from South India. Roger Lundin and Bertil Nordenstam

New Species of Eugenia sect. Racemosae (Myrtaceae) from the Atlantic Forest, Eastern Brazil. Fiorella Fernanda Mazine and Vinicius Castro Souza

Two New Species and a Nomenclatural Synopsis of Myriocarpa (Urticaceae) from Mesoamerica. Alexandre K. Monro

Nitidobulbon, a New Genus of Maxillariinae (Orchidaceae). Isidro Ojeda, German Carnevali Fernandez Concha and Gustavo A. Romero Gonzalez

Stonesia ghoguei, Peculiar Morphology of a New Cameroonian Species (Podostemaceae, Podostemoideae). Evelin Pfeifer, Valentin Grob, Mike Thiv and Rolf Rutishauser

Name Changes in the Mentzelia multicaulis Complex (Loasaceae). John J. Schenk and Larry Hufford

Two New Species of Bulbophyllum (Orchidaceae) from Brazil. Eric C. Smidt and Eduardo L. Borba

About the Typification of Myriophyllum aquaticum (Haloragaceae). Nuncia Maria Tur, Silvia Susana Torres Robles and Guadalupe Meter

Nomenclatural Corrections in Onagraceae. Warren L. Wagner and Peter C. Hoch

Validation of the Name Chelonopsis chekiangensis (Lamiaceae), a Species from Eastern China. Xiang Chunlei, Liu Zhenwen, Xu Jin and Peng Hua

A Contribution to Astragalus sect. Campylanthus (Fabaceae) in Iran, Two New Species and a Diagnostic Key. Shahin Zarre, Ali A. Maassoumi and Dieter Podlech