Journal Vol 90-3

John Jacob Lavranos 1928–2018
Tim S Harvey

The Echeverias of the Chillón River valley, Lima, Perú, including three new taxa
Guillermo Pino & Graciela Vilcapoma Segovia

Saving the Queens
Bill Thornton

A monstrose form of Stapelia engleriana 
Joseph A Rard 

Pushing the limits: landscaping with cacti and succulents in cold climates #28 
Leo Chance

Curator's notes on growing cacti part 1: soils and containers 
Andrew Gdaniec and Olwen M Grace

An illustrated field guide as a tool for the conservation of cacti species in the Brazilian Chaco
Vanessa Gabrielle Nóbrega Gomes, Wellington Santos Fava, Paulo Robson Souza, Daniela ZAPPI & Andréa Cardoso Araujo

Cacti of northwestern Peru: the CSSA field trip of August 2016 part II
James D Mauseth

Four of the world's tiniest succulents grow together in Central Spain
Ray Stephenson

Chipping and chemical scarification effects on Sclerocactus glaucus (K.Schum.) L.D.Benson (Cactaceae) seed germination 
Nancy D Riley & Terry Z Riley

Arecesocereus a new subgenus of Cereus 
Michael A Wisnev