Novon is a peer-reviewed botanical journal whose purpose is to publish articles establishing new nomenclature, including new taxa and new names, for vascular plants and bryophytes.

CONTENTS OF NOVON 27(4)

Agave lexii (Asparagaceae: Agavoideae), a New Species from Mexico
Leccinum J. García-Morales, Jesús García-Jiménez & Duilio Iamonico

Melanophylla dianeae (Torricelliaceae), a New, Critically Endangered Species from a Remnant Forest Fragment in East-central Madagascar
Porter P. Lowry II, Chris Birkinshaw, George E. Schatz & Patrice Antilahimena

Phegopteris excelsior (Thelypteridaceae): A New Species of North American Tetraploid Beech Fern
Nikisha R. Patel, Susan Fawcett & Arthur V. Gilman

Reineckea flava (Liliaceae), a New Species from Guangxi Province, China
Lan Yao, Xunru Ai & Jingzhou Dong

Two New White-flowered Mexican Zephyranthes Species (Amaryllidaceae: Amaryllidoideae) with Different Breeding Systems
Raymond O. Flagg, Gerald L. Smith & Abisaí Josué García-Mendoza

Notes and Updates on the Typification of Some Cassia (Leguminosae: Caesalpinioideae) Names
Tânia M. de Moura, Roy E. Gereau, Ana P. Tachevski & Juliana G. Rando

Typification of the Linnaean Name Atropa arborescens (Solanaceae)
Tânia M. de Moura, Renan P. Campos & Roy E. Gereau

New Findings on Scrophularia sect. Mimulopsis (Scrophulariaceae) from Iran
Massoud Ranjbar & Narges Rahchamani

Gentianella montesinosii (Gentianaceae, Gentianeae, Swertiinae), a New Species from Peru
James S. Pringle

Studies in Neotropical Araliaceae. II. Resurrection of the Neotropical Genus Crepinella for a Clade of New World Species Previously Included in Schefflera (Araliaceae)
Porter P. Lowry II, Gregory M. Plunkett & David A. Neill

Author Index

Subject Index

• Editor-in-Chief: Wendy L. Applequist