- Agavaceae
- Agavaceae (IE Explorer Only)
- Die Agaven
- Agave information
- Agave pictures
- The Giant Agave
- Jan Kolendo's Agave Pages
- Yucca CD-ROM No.3 from Fritz Hochstätter
- Benny's Yucca Page
- Yucca (Agavaceae)
- Aizoaceae
- Achim Hecktheuer's Lithops, Conophytum and other Mesembs Site
- Extensive Japanese site on Mesembs, particularly Conophytums
- Information on Conophytums Tom Jacobs
- Lance and Kerri's world of Lithops
- Lithops - an intoduction
- Lithops (and some other Mesembs) by Rafael Matysiuk
- Lithops
- Mesembryanthemaceae
- Saphesia Mesemb Site by Lorenzo Stocco
- Apocynaceae
- Asclepiadaceae
- Asclepidarium Dr Friederike Hübner
- The Asclepiad Exhibition
- Asclepiads Iztok Mulej
- Asclepiads Max H Michel
- Sage Reynold's Ceropegia Journal
- The Stapeliads Extensive Photo Album
- Stapeliads - Orchids of the Succulent World Pollination information and Picture Gallery by Dr Gerry Barad
- Aslepius Das WebPortal fur Asclepsfreunde
- Asphodelaceae
- Cactaceae
- Alessandro Mosco's Thelocactus Website
- Ariocarpus : Living Rocks of Mexico The most comprehensive resource on the genus Ariocarpus available
- Ariocarpus (German)
- Arizona Rare Cactus Photos Homepage
- The Genus Astrophytum (Lem.)
- Astro Meister International Astrophytum Group
- Die Gattung Astrophytum Klaus-Peter Klesewski (German)
- Browningia
- Christmas Cacti
- Copiapoas
- Copiapoa
- Copiapoathon 2003 A Travelog by Paul Klaassen
- Copiapoa Living on the Edge
- Coryphantha Homepage Dr Reto F.Dicht (English & German)
- Discocactus (Dutch and English)
- Echinocereus-Homepage E-zine from Martina and Andreas Ohr (Germany). Updated monthly on the first day of the month
- The Echinocereus Reference Collection
- Genus Echinofossulocactus Lawrence by Vlastimil Simek
- Echinopsis gallery
- Bob Schick Echinopsis Hybrids
- Epiphyllums, Hybrids and Allied Cacti in New Zealand
- Epiphytic Cacti Michel Combernoux (English, French and Spanish)
- Epifytische cactussen (Dutch)
- Die Gattung Escobaria Armin Pötschke's Escobaria siet, also includes information on Mammillaria and Turbinicarpus
- Espostoa
- Ferocactus
- Ferocactus
- Ferocactus
- Il genere Ferocactus
- Nobbi's Ferokakteen
- Frailea Information Base
- Cyrill Hunkeler's Tephrocactus Page
- Jim Hunter's Epi Universe
- Ulrich Creutzburg's Gymnocalycium Page
- The Genus Gymnocalycium by Volker Schaedlich from Spremberg
- Gymnocalycium (Polish)
- Gert J.A.Neuhuber's Gymno Pages
- Photographs of Gymnocalycium by Takashi Shimada
- Icones Cactearum Epiphyticum Epiphytic Cacti
- Kakteen-GartenHardy Cacti
- Lophophora
- Mammillarias
- Mammillaria Franck Martin, English and French, over 400 pictures, field number search engine, online English discussion forum.
- Mamms on the Mall
- George Thomson's Melocactus site
- Melocactus Gerard Delanoy
- Opuntiads of the USA
- Mark Faint's Notocactus Page
- Setacei (Notocactus) Homepage
- Opuntias in South America Klaus Gilmer and Hans Peter Thomas (German and English)
- Pelecyphora
- The Peyote Bible
- Fritz Hochstätter's Page Pediocacti, Sclerocacti and Navajoa
- NCCPG Collection of Pterocactus
- Rhipsalis
- Sclerocactus, Pediocactus, Navajoa and Toumeya
- Sulco Passion
- Tephro World
- The Genus Thelocactus
- Trichocereus
- Trichocereus (rare plants link)
- Mark Faint's Turbinicarpus Page
- Turbinicarpus-gemme del messico
- Turbinicarpus
- Crassulaceae
- Adromischus Displayed (Derek Tribble)
- Feroadro's Adromischus Page
- Sukkulent Bryophyllum
- Crassulaceae (IE Explorer Only)
- Kalanchoe
- Jovibarba, Sempervivum, Rosularia
- Sedum English and Japanese
- Sempervivums
- Sempervivum/Jovibarba
- Semperviviaphilia
- Sempervivum and Jovibarba (Slovak)
- Sempervivums in Slovenia Jure Slatner
- Dracaenaceae
- Euphorbiaceae
- Geraniaceae
- Piperaceae
