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Steven Hammer has done extensive work on several of the genera Mesembryanthemaceae,
but has concentrated, over a period of twelve years, on his research on
Conophytum. He has travelled extensively in the regions in which
conophytums are to be found, and has unearthed several new taxa. His book
"The Genus Conophytum" brought order to the previous taxonomic chaos in which
the genus, by virtue of its size and bewildering diversity, has existed.
He is regarded internationally as one of the foremost authority on the mesembs
and the foremost authority on Conophytum. He maintains probably the
largest collection of mesembs at his home. His extensive articles on
Conophytum and other mesemb genera, published in the society's
journal, ALOE, the journal of the Mesemb Study Group
(UK) and in other international succulent plant journals, are well known.
He is in demand internationally as a lecturer on the subject of mesembs.
A research fellow at the University of Cape Town, he has been responsible
for the official description of over fifty new species of succulents and
has discovered many more. He holds a B.A. from the University of California
at Santa Cruz and lives in Vista, California.
| S.A. Hammer (1988): | Conophytum: an annotated checklist: (A-C), Bradleya 6, Pages 101-120, ISBN: 0902099159 |
| S.A. Hammer (1989): | Conophytum: An annotated checklist (D-K), Bradleya 7, ISBN: 0902099175 |
| S.A. Hammer (1990): | Conophytum: An annotated checklist (L-R), Bradleya 8, ISBN: 0902099183 |
| S.A. Hammer, Sigrid Liede & Vin Whitehead (1991): | Observations on pollination and hybridization in the genus Conophytum (Mesembryanthemaceae), Bradleya 9, ISBN: 0902099191 |
| S.A. Hammer (1993): | The Genus Conophytum – A Conograph |
| S.A. Hammer (1993): | Macro-observations on Cheiridopsis and Odontophorus (Aizoaceae), Bradleya 11, ISBN: 090209923X |
| S.A. Hammer & Ernst van Jaarsveld (1996): | Gibbaeum johnstonii, a new species from the Little Karoo, Bradleya 14, ISBN: 0902099442 |
| S.A. Hammer (1997): | Aizoaceae: Steven Hammer writes in his inimitable style two „Odes on Mesembryanthemum“, covering field observations on 12 genera, 3 new conophytums and 1 new Delosperma., Bradleya 15, ISBN: 0902099493 |
| S.A. Hammer and other … (1998): | Mesembs of the World |
| S.A. Hammer (1999): | Lithops – Treasures of the Veld |
| S.A. Hammer & Bruce M. Bayer (1999): | Haworthia Revisited, A Revision of the Genus, ISBN: 1919766081 |
| S.A. Hammer & Bela Kalman (2001): | Succulents: Nature´s Sculptural Wonders, ISBN: 0847823334 |
| S.A. Hammer (2002): | Dumpling and His Wife: New Views of the Genus Conophytum |
Postal address: 845 Mason Road, Vista, CA 92084 USA
Fon: +1 (760) 631 7898
E-Mail: steven
cactus-mall.com
Homepage: Sphaeroid Institute
