Haseltonia 21

Host response and endophyte structure of the mistletoe Ligaria cuneifolia (Loranthaceae) parasitizing Corryocactus brevistylus (Cactaceae)
James D. Mauseth, Stephen Benigno, Fátima Cáceres Huamani, and Carlos Ostolaza

Symptomatology of infestation by Hypogeococcus pungens: contrasts between host species
Roberto Carrera-Martínez, Laura Aponte-Díaz, Jorge Ruiz-Arocho and David A. Jenkins

Succulents and their adaptation to mega-herbivores in the Gonarezhou National Park (Eastern Zimbabwe) and the first records in Zimbabwe of the succulent twiner Tinospora fragosa and a succulent mistletoe, Agelanthus crassifolius
Ernst J. van Jaarsveld

On the ancestry of the tetraploid shrubby aloes in Kenya
A.M. Uleh, L.E. Newton, P. K. Mbuga and G. W. Gatheri

Notes on Ruschia dichroa (Aizoaceae): an endemic to the arid mountain fynbos of the Western Cape, South Africa
C. Klak and P.V. Bruyns

Aloe scorpioides; a new range extension to the Sierra Das Neves, south-west Angola
Ernst J. van Jaarsveld

Notes on Aloe ×nobilis Haw. (Asphodelaceae: Alooideae)
Gideon F. Smith and Estrela Figueiredo

Cotyledon woodii subsp. cremnophila, a new cliff dwelling taxon from the Kei river, Eastern Cape, Republic of South Africa
Ernst J. van Jaarsveld

Four new taxa of the genus Echeveria from the state of Oaxaca, Mexico
Jerónimo Reyes Santiago, Christian Brachet Ize, Omar González Zorzano, Angeles Islas Luna and Lilian López Chávez

Cotyledon lutea, a new species from the Western Cape, Republic of South Africa
Ernst J. van Jaarsveld

Sedum ×estrelae (Gideon F.Sm. & R.Stephenson) Gideon F.Sm. (Crassulaceae): a new combination for a natural hybrid in Sedum series Rupestria A.Berger (= Petrosedum Grulich) from Portugal
Gideon F. Smith

Crassula montana subsp. borealis, a new cliff-dwelling species from Namaqualand, Northern Cape, Republic of South Africa
Ernst J. van Jaarsveld

Annotated bibliography for the Colorado Hookless Cactus (Sclerocactus glaucus)
Nancy D. Riley

Published research in Cacti and Succulents, 2014–June 2015: a (briefly) annotated, selected bibliography
Peter B. Breslin