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Bradleya 39/2021

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Contents

Editorial George Thomson

 

A survey of cacti richness in a biodiversity hotspot of Western Argentina

Alejandro Saint Esteven, Mariana Benedictto, Franco A. Garolla, Julián Padró and Ignacio M. Soto

 

Dendrocereus Britton & Rose – one species or two?

Nigel P. Taylor, Paul Hoxey and Andrew Gdaniec

 

Taxonomic status of two controversial species of Opuntia (Cactaceae) from Mexico based on morphological and molecular data

César Ramiro Martinez-González and José de Jesús Morales-Sandoval

 

The ecological relationship between sap beetles and Pilosocereus Byles & Rowley (Cactaceae) in Northeastern Brazil

Marcelo Oliveira Teles de Menezes and Vinicius Gomes Sampaio

 

A new species of Cumulopuntia (Cactaceae) from north-western Bolivia

Paul Hoxey and Martin Lowry

 

Notes on the identity of Echinocactus conglomeratus – a name of uncertain application from northern Chile

Paul Hoxey

 

Notes on cultivated Pereskia quisqueyana and related species (Cactaceae)

Nigel P Taylor

 

Notes on Pseudorhipsalis amazonica (Cactaceae-Hylocereeae) from eastern Amazônia, Brazil

Daniela Zappi, Rafael Barbosa-Silva and Nigel Taylor

 

Population Structure and Phenology of Discocactus zehntneri Britton & Rose subsp. petr-halfarii (Zachar) M.R. Santos & M.C. Machado (Cactaceae), a Critically Endangered Brazilian Cactus Subspecies

Joana Paula Bispo Nascimento and Marcos Vinicius Meiado

 

Bulbine audreyae N.R. Crouch & Gideon F. Sm. (Asphodelaceae subfam. Asphodeloideae), a new cremnophytic species with grass tuft-like rosettes from the Outeniqua range in South Africa

Neil R. Crouch and Gideon F. Smith

 

Cotyledon nielsii (Crassulaceae), a new cremnophyte from KwaZulu-Natal, South Africa

Neil R. Crouch, David G.A. Styles and Michele Walters

 

Portulacuria afra; Variability and distribution

Ernst van Jaarsveld and Anso Le Roux

 

Crassula floribunda (Friedrich ex Toelken) N.R. Crouch, Gideon F. Sm. & D. Styles (Crassulaceae), a new status for a species endemic to central KwaZulu-Natal province, South Africa

Neil B. Crouch, Gideon F. Smith and David G.A. Styles

 

Reinstatement of Kalanchoe decumbens Compton (Crassulaceae subfam. Kalanchooideae), an endemic species from eastern southern Africa

Gideon F. Smith

 

Expanding the known geographical distribution range of Kalanchoe waterbergensis (Crassulaceae subfamily Kalanchooideae) in northern South Africa

Gideon F. Smith. Estrela Figueiredo and Neil R. Crouch

 

Reinstatement of Kalanchoe (subg. Bryophyllum] sect. Alatae (Crassulaceae subfam. Kalanchooideae) for K. porphyrocalyx and K. uniflora, two Madagascan endemics

Gideon F. Smith

 

Taxonomic and nomenclatural notes on Kalanchoe hauseri Werderm. (Crassulaceae subfam. Kalanchooideae) from Angola, with notes on Friedrich Welwitsch’s collecting activities in the country

Gideon F Smith and Estrela Figueiredo

 

The identity of Kalanchoe lubangensis R. Fern. (Crassulaceae subfam. Kalanchooideae), a little-known species endemic to southwestern Angola, with an extension of its distribution range

Gideon F Smith, Estrela Figueiredo and Andrew Hankey

 

The taxonomy and nomenclature of Kalanchoe streptantha Baker (Crassulaceae subfamily Kalanchooideae)

Gideon F. Smith and Estrela Figueiredo

 

Typification of the name Cotyledon clavifolia Haw., basionym of Adromischus cristatus (Haw.) Lem. var. clavifolius (Haw.) Toelken (Crassulaceae subfam. Kalanchooideae), with a range extension

Gideon F Smith and Neil R. Crouch

 

The floristics and phytogeography of Kalanchoe Adans. (Crassulaceae subfam. Kalanchooideae) in the Waterberg Biosphere Reserve, northern South Africa

Gideon F. Smith and Estrela Figueiredo

 

Additional species of Agave (Agavoideae /Agavaceae, Asparagaceae s. 1.) introduced and naturalising in Tunisia and North Africa

Ridha El Mokni and Filip Verloove

 

Crassula sandrae, a new species from the southern Cape, South Africa

Niels H.G. Jacobsen

 

The identity of Cacalia cuneifolia L.

Julian M. H. Shaw

 

Crassula sarcocaulis Eckl. & Zeyh. – variation and clones in cultivation.

Julian M. H. Shaw

 

Aloe arborescens Mill. ‘Estelle Potgieter’ (Asphodelaceae subfam. Alooideae), a new cultivar in a variable species, with notes on aloes at the South African National Biodiversity Institute, Pretoria

Gideon F. Smith, Ronell R. Klopper and Neil R. Crouch

 

Notes on genuine Agave vivipara (Agavaceae), a poorly known Caribbean species, recently introduced in the Canary Islands (Spain)

Filip Verloove and Marcos Salas Pascual

 

Aloe vera and the identity of the plant carvings in Rosslyn Chapel, Scotland.

George Thomson

 

Gordon Douglas Rowley 1921-2019: an appreciation

Jonathan Y. Clark

 

Softback

Total Number of Pages 273

ISBN 978-0-902099-28-9

Additional information

Weight 0.6 kg
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