-Fieldnotes, Mammillaria picta, C&SJ(US) [Cactus and Succulent Journal,USA], 59:3,
1987 (with T. E. Davis).
-Fieldnotes, Ariocarpus fissuratus var. hintonii, C&SJ(US), 59:4, 1987 (with T. E.
Davis).
-Fieldnotes, Rediscovery of Gymnocactus gielsdorfianus, C&SJ(US), 59:6, 1987.
-Fieldnotes, The rediscovery of Mammillaria schwarzii, C&SJ(US), 60:2, 1988.
-Fieldnotes, Field trip to Puebla/Oaxaca, C&SJ(US), 60:3, 1988.
-Fieldnotes, The rediscovery of Gymnocactus saueri, C&SJ(US), 60:4, 1988.
-Fieldnotes, The rediscovery of Mammillaria zeilmanniana, C&SJ(US),60:6, 1988.
-Fieldnotes, A system of seed propagation for cacti, C&SJ(US), 61:1, 1989.
-Feldnotizen: Die Wiederdeckung der M. schwarzii, AfM [Arbeitskreises für
Mammillarenfreunde e.V., Germany], 13:1, 1989.
-Fieldnotes, Further explorations in Arroyo la Virgen, C&SJ(US), 61:2, 1989.
-Fieldnotes, The cacti of San Francisco de la Sierra, C&SJ(US), 61:4, 1989.
-Fieldnotes, A successful search for Mammillaria bombycina, C&SJ(US), 61:5, 1989.
-Feldnotizen: Die Wiederentdeckung der M. zeilmanniana, AfM, 13:5, 1989.
-Una forma nueva monstruosa de Myrtillocactus geometrizans, CySM [Cactáceas y Suculentas Mexicanas, México], XXXIV:4, 1989.
-Fieldnotes, New locations for Mammillaria perezdelarosae, C&SJ(US), 61:6, 1989.
-Fieldnotes, A successful hunt for Mammillaria aurihamata, C&SJ(US), 62:1, 1990.
-Feldnotizen: Weitere Untersuchungen im Arroyo la Virgen, AfM, 14:1, 1990.
-Fieldnotes, Cruising in the Mar de Cortes, C&SJ(US), 62:2, 1990.
-Peoplenotes, A tribute to Mexico's first lady of cactus, C&SJ(US), 62:3, 1990.
-Feldnotizen: Die erfolgreiche Suche nach Mammillaria bombycina, AfM, 14:3, 1990.
-Fieldnotes, A Mammillaria "common about San Luis Potosi", C&SJ(US), 62:4, 1990.
-Feldnotizen: Neue Standorte der M. perezdelarosae, AfM, 14:6, 1990.
-Fieldnotes, Mammillaria leucantha Boedeker, C&SJ(US), 63:1, 1991.
-Feldnotizen: Eine erfolgreiche Suche nach M. aurihamata, AfM, 15:1, 1991.
-Fieldnotes, The islands of San Luis Potosí, C&SJ(US), 63:2,1991.
-Feldnotizen: Eine "im Umfeld von S.L.P. häufige" Mammillaria, AfM, 15:2, 1991.
-Fieldnotes, Mammillaria rettigiana, C&SJ(US), 63:3, 1991.
-Fieldnotes, A look at San Gil and Mammillaria gilensis Boedeker, C&SJ(US), 63:5,
1991.
-Fieldnotes, Mammillaria eschauzieri, C&SJ(US), 63:6, 1991.
-Nuevos taxa de cactáceas en Nuevo León, CySM, XXXVI:1, 1992 (with C. Glass).
-Fieldnotes, Mammillaria aff. fittkaui, C&SJ(US), 64:1, 1992.
-Feldnotizen: Mamillaria leucantha (Bödeker), AfM, 16:1, 1992.
-Feldnotizen: Die "Insein" von San Luis Potosí, AfM, 16:2, 1992.
-Two new cactus from Mexico (Geohintonia mexicana and Aztekium hintonii),
C&SJ(US), 64:3, 1992 (with C. Glass).
-Peoplenotes, An auspicious beginning, C&SJ(US), 64:4, 1992.
-Feldnotizen: Mammillaria rettigiana Bödeker, AfM, 16:3, 1992.
-Nuevos taxa de cactaceas de Nuevo Leon, Mexico, NKS/KAKTUS [Nordisk Kaktus
Selskab, Denmark], 27:3, 1992 (with C. Glass).
-Geohintonia mexicana et Aztekium hintonii: vers de nouveaux moyens de protection,
Cactus - Adventures [France], 17, 1993 (with C. Glass).
-To The Rescue, BCSJ [British Cactus and Succulent Journal, England], 11:2, 1993 (with
C. Glass).
-Fieldnotes, A visit to Mammillaria anniana, C&SJ(US), 65:3, 1993.
-Fieldnotes, Mammillaria limonensis Reppenhagen, C&SJ(US), 65:4, 1993.
-Feldnotizen: Am standort der Mammillaria anniana, AfM, 18:1, 1994.
-Mammillaria schwarzii revisited, C&SJ(US), 66:3, 1994.
-Der Fall Mammillaria schwarzii, Schumannia [Germany]1, 1994.
-Mammillaria tezontle sp. nov. W. A. & Betty Fitz Maurice, CySM, XL:3, 1995.
-Mammillaria bocasana Poselger subsp. eschauzieri (Coulter) W. A. & B. Fitz Maurice
comb. et stat. nov., MSJ (Mammillaria Society Journal, England), 35:2, 1995.
-Mammillaria lloydii and Operation Bumblebee, BCSJ, 14:1, 1996.
-A new Mammillaria, The Cactus File (England), 2:9, 1996.
-A successful search for Mammillaria sinistrohamata and Mammillaria wagneriana,
C&SJ(US), 68:5, 1996.
-A new species of Mammillaria (M. marcosii), Series Stylothelae, from northwestern
Guanajuato, Mexico, C&SJ(US), 69:1, 1997 (with C. Glass).
-Mammillaria stella-de-tacubaya and M. gasseriana: A new look, MSJ, 37:2, 1997.
-Charles Glass: A Portrait in Green, Cante, A.C., San Miguel de Allende, Guanajuato,
Mexico, Winter - Spring, 1997.
-Mammillaria tezontle - A long-term study, C&SJ(US), 69:4, 1997.
-Mammillaria crinita - a new look at old names, C&SJ(US), 69:5, 1997.
-Ariocarpus revisited, Haseltonia No. 5, 1997 (with E. F. Anderson).
-Repercussions - M. marcosii, MSJ, 37:4, 1997.
-Mammillaria crinita Martius subsp. scheinvariana (Glass) W. A. & Betty Fitz Maurice
comb. et stat. nov., C&SJ(US), 70:2, 1998.
-Mammillaria luethyi - A new species has been described and an old mystery solved,
C&SJ(US), 70:1, 1998.
-Charles Edward Glass, 24 May 1934 - 23 February 1998, C&SJ(US), 70:3, 1998.
-Charles Edward Glass, 1934 - 1998, MSJ, 38:2, 1998.
-Repercussions - M. leucantha and M. wildii, MSJ, 38:3. 1998.
-Repercussions - M. gilensis and M. berkiana, MSJ, 38:4, 1998.
-Fur Sie gelesen. Mammillaria stella-de-tacubaya und Mammillaria gasseriana - Eim
neuer Gesichtspunkt, AfM, 22:3, 1998.
-Zivot v obklopeni kaktusov, Cactus & Succulent Journal of Slovakia, VIII:3, 1998.
-Fur Sie gelesen. Feldnotizen: Mammillaria luethyi, AfM, 22:4, 1998.
-Mammillaria luethyi. Een nieuwe soort werd beschreven en een oud mysterie opgelost,
Grusonia [The Netherlands], 39:3, 1999.
-New locations for Ariocarpus agavoides, C&SJ(US), 71:5, 1999.
-Mammillaria crinita - ein nuer Blick auf alte Namen, AfM, 24:1, 2000.
-Mammillaria machucae, C&SJ(US), 72:2, 2000.
-Noch einmal M. stella-de-tacubaya und M. gasseriana, AfM, 24:2, 2000.
-Mammillaria stella-de-tacubaya and Mammillaria gasseriana – Once again, MSJ, 40:3,
2000.
-Fieldnotes, More about Mammillaria machucae, C&SJ(US), 72:5, 2000
-Mammillaria eschanzieri (sic) etc., MSJ, 40:4, 2000.
-Mammillaria eschanzieri (sic) etc. once again, MSJ, 41:2, 2001.
-Ariocarpus revisited (fragment), The KAKTUS-KLUB (Russia), No. 2-3, 2001 (with E.
F. Anderson).
-Another look at Mammillaria bombycina and M. perezdelarosa, and something new: M.
perezdelarosae ssp. andersoniana, C&SA(US), 73:5, 2001.
-Mammillaria nana, a new look, C&SJ(US), 73:6, 2001.
-Felsnotizen: Ein weiterer Blick auf Mammillaria bombycina und M. perezdelarosae und
etwas Neues M. perezdelarosae ssp. andersoniana, AfM, 26:1, 2002.
-More on M. stella-de-tacubaya and M. gasseriana, MSJ, 42:2, 2002.
-A response to Bayer, C&SJ(US), 74:3, 2002.
-M. perezdelarosae ssp. andersoniana, The KAKTUS-KLUB [Russia], No. 2, 2002.
-Another look at Mammillaria glochidiata Martius, MSJ, 42:4, 2002.
-Subjectivity in Taxonomy, MSJ, 42:4, 2002.
-Taxonomie und Nomenklatur, AfM , 26:4, 2002
-Mammillaria nana, a new look, MSJ 43:1, 2003
-Feldnotizen: Mammillaria machucae, sp. nov. AfM, 27:4, 2003
-Mammillaria nana, a new look, The KAKTUS KLUB, No.1, 2004.
-Fieldnotes, Mexico’s Digitostigma caput-medusae, C&SJ(US), 76:6, 2004.
-The tangled taxonomic web of Mammillaria stella-de-tacubaya, M. gasseriana et al.
MSJ, 45:2, 2005.
-Digitostigma caput-medusae, The KAKTUS KLUB, No. 4, 2005.
-Research & Conservation Report, More examples of vivipary in Cactacae, C&SJ(US),
78:1, 2006.
-Fieldnotes: Mammillaria manana sp. nova, CactusWorld (England), 24:1, 2006.
-Mammillaria Series Stylothelae, MSJ 46:1, 2006.
-Der taxonomische Wirrwarr um Mammillaria stella-de-tacubaya, M. gasseriana u. a.
AfM, 30:2, 2006.
-Echinocactus grusonii, a new location for the Golden Barrel, CactusWorld, 24:4, 2006
(with Julia Etter & Martin Kristen).
-M. tezontle, Then and now, Cactus & Co. XI:2, 2007.
-A localized loss of the chloroplast rpl16 Intron from Mammillaria Series Stylothelae,
Bradleya (with Charles Butterworth).
-Echinocactus grusonii, A new location, Cactus & Co. XI:4,2007.
99 published
Pending:
- A challenging passage through the Barranca Toliman in Hidalgo. Sent to CactusWorld
30 Mar 07.
- Stylothelae in the Barranca Metztitlán. Sent to Mammillaria Journal Aug 07.
-A new location for Mammillaria karwinskiana. Sent to Mammillaria Journal Aug 07.