NOVON is a quarterly, peer-reviewed journal and publishes short articles whose primary function is the establishment of nomenclature in vascular plants and bryophytes.

CONTENTS OF NOVON 21(4)

New Species and Notes on Begonia (Begoniaceae) from Middle America, I. Kathleen Burt-Utley & John F. Utley

Transfer of Four Species of Scabiosa to Lomelosia (Dipsacaceae). Paolo Caputo & Emanuele Del Guacchio

A New Variety of Musa itinerans (Musaceae) in Taiwan. Hui-Lung Chiu, Chou-Tou Shii & T. Y. Aleck Yang

Novae Gesneriaceae Neotropicarum XVII: New Combinations and Typifications. John L. Clark, Laurence E. Skog & Fred R. Barrie

Nogopterium, a New Name for the Genus Pterogonium (Musci, Leucodontaceae). Marshall R. Crosby & William R. Buck

A New Species of Pachycarpus (Apocynaceae: Asclepiadoideae) from KwaZulu-Natal, South Africa. Melissa Glen, Ashley Nicholas, Jennifer Lamb & Adam Shuttleworth

Arum cylindraceum subsp. pitsyllianum (Araceae), a New Taxon from Cyprus. Georgios Hadjikyriakou, Ralf Hand & Guilhem Mansion

Lectotypification and Reinstatement of Stachytarpheta friedrichsthalii (Verbenaceae) with Notes on the Lectotypification of S. indica. Barry E. Hammel & Michael H. Grayum

Changes to Publication Requirements Made at the XVIII International Botanical Congress in Melbourne---What Does e-Publication Mean for You? Sandra Knapp, John McNeill & Nicholas J. Turland

Thirteen New Species of Neotropical Viscaceae (Dendrophthora and Phoradendron). Job Kuijt

Two New Species of Oryctanthus (Loranthaceae) from Colombia and French Guiana. Job Kuijt

Notes on Tetrorchidium (Euphorbiaceae) in Panama. Gordon McPherson

Strychnos puberula (Loganiaceae), a New Species from Panama. Gordon McPherson

A New Genus of Podostemaceae from Venezuela. C. Thomas Philbrick, Jacqueline Malecki, Nicholas P. Tippery & Hannah I. Stevens

Gouania tiliifolia: The Correct Name for Gouania scandens. Peter B. Phillipson, Martin W. Callmander & Sven Buerki

Una Especie Nueva de Combretum (Combretaceae, sección Combretum) de la Costa del Occidente de México. Francisco Javier Rendón Sandoval, Raymundo Ramírez Delgadillo & Alfredo Frías Castro

A New Species of Solanum (Solanaceae) from the Highlands of Central Brazil. Suelma Ribeiro-Silva & Carolyn E. B. Proença

A New Species of Iochroma (Solanaceae) from Ecuador. Stacey D. Smith & Segundo Leiva González

Rubiacearum Americanarum Magna Hama Pars XXIX: Overview of the Neotropical Genus Schizocalyx (Condamineeae) and Description of Two New Species. Charlotte M. Taylor, David A. Neill & Roy E. Gereau

Hoya ignorata (Apocynaceae, Asclepiadoideae): An Overlooked Species Widely Distributed across Southeast Asia. Tran The Bach, Joo-Hwan Kim, Dong-Kap Kim, Joongku Lee, Bui Thu Ha, Nadhanielle Simonsson & Michele Rodda

Lectotypification of Three Species in the Fern Genus Pteris (Pteridaceae) from China. Yang Dong-Mei, Xing Fu-Wu & Wang Fa-Guo

Author Index