CACTUS of the MONTH YEAR MONTHS PAGE TITLE AUTHOR 1964 Jun 80 Acanthocereus Pentagonus R.W

CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1964 Jun 80 Acanthocereus pentagonus R.W. Muckleroy 1971 May 54 Acanthocereus pentagonus Roy Hoke 1995 Jul/Aug 6 Acanthocereus pentagonus Dick McEuen 1988 Sep/Oct 51 Acanthorhipsalis paraganiensis Flo Butler 1970 Aug 94 Ancistrocactus scheeri Ralph Artis 1976 Jun 66 Ancistrocactus scheeri Evelyn Crisp 2003 Jan/Feb 10 Aporocactus flagelliformis Mario Rizo 1980 Jul/Aug 68 Aporocactus species Marjorie Parmely 1989 Sep/Oct 8 Aporocactus species Richard Rein 1999 May/Jun 6 Ariocarpus Mike Navolio 2013 Sep/Oct 9 Ariocarpus bravoanus ssp. hintonii Richard Stamper 1967 May 36 Ariocarpus fissuratus Joe Montgomery 2008 Jan/Feb 6 Ariocarpus fissuratus L. Rodriguez-Cracraft 2012 Sep/Oct 7 Ariocarpus fissuratus Fred Haase 2010 Sep/Oct 10 Ariocarpus fissuratus var. lloydii Richard Stamper 1969 Aug 78 Ariocarpus kotschoubeyanus Glenn Spraker 1986 Sep/Oct 64 Ariocarpus kotschoubeyanus Criss Ivy 2001 Jan/Feb 6 Ariocarpus kotschoubeyanus David Thomas 2007 Mar/Apr 7 Ariocarpus retusus Fred Haase 2016 Nov/Dec 10 Ariocarpus retusus Liliana Cracraft 1991 Mar/Apr 10 Ariocarpus retusus, tribonus Bob Boyles 1975 Feb 18 Ariocarpus scapharostrus Roy Paramore 1996 Jul/Aug 8 Ariocarpus scapharostrus Leroy Kellogg 1970 Nov/Dec 130 Ariocarpus species J.C. Wilson 1972 Apr 42 Ariocarpus species Ben Wyly 1973 Oct 114 Ariocarpus species Joe Cappleman 1976 Sep 102 Ariocarpus species Roy Paramore 1986 Mar/Apr 18 Ariocarpus species Marjorie Parmely 1996 Sep/Oct 6 Ariocarpus species Craig Hamilton 1987 Sep/Oct 62 Ariocarpus trigoni elongata Joseph Layne 1969 Sep 88 Ariocarpus trigonus Albert Rubin 1970 Jan 6 Astrophytum asteria Roy Hoke 1964 Oct 113 Astrophytum asterias Lois Kirkpatrick 1988 Jan/Feb 5 Astrophytum asterias Pauline Miertschin 2011 Jan/Feb 12 Astrophytum asterias x coahuilense Liliana Rodriguez Cracraft 1968 Aug 64 Astrophytum capricorne R.H. Gregg 1973 Sep 102 Astrophytum capricorne Ben Wyly 1982 Jan/Feb 10 Astrophytum capricorne Mary Jo Gussett 1990 Mar/Apr 5 Astrophytum capricorne Roy Paramore 2000 Nov/Dec 6 Astrophytum capricorne Genevieve Friend 1969 May 42 Astrophytum myriostigma Bettie Muckleroy 1973 Jan 6 Astrophytum myriostigma Lewis Brittain 1985 Mar/Apr 20 Astrophytum myriostigma John Gussett 1991 Nov/Dec 10 Astrophytum myriostigma Irma Lincoln 2007 Jan/Feb 10 Astrophytum myriostigma L. Rodriguez-Cracraft 2009 May/Jun 4 Astrophytum myriostigma David Thomas 2014 Sep/Oct 5 Astrophytum myriostigma Richard Holland 2019 Jan/Feb 3 Astrophytum myrostigma Richard Holland 2004 Nov/Dec 10 Astrophytum ornatum Mario Rizo 2009 Jul/Aug 7 Astrophytum stigmatodactylus caput-medusae Jeff Boggan 1983 Sep/Oct 70 Austrocephalocereus genus Roy Paramore 1998 Nov/Dec 6 Austrocephalocereus genus Kathy Fewox 1974 Jun 68 Aztekium ritteri Frank Schlicht 1984 Jan/Feb 6 Aztekium ritteri Ben Muller 1995 Jul/Aug 9 Aztekium ritteri Tony Beekenkamp 2016 Jul/Aug 6 Aztekium ritterii Jeff Boggan 1992 Sep/Oct 10 Borzicactus samaipatanus Kathy Fewox 1983 Mar/Apr 22 Borzicactus species Bert Evans

1 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1983 Mar/Apr 24 Buiningia aurea Charles Kirkpatrick 1967 Aug 60 Carnegia gigantea Danny Horowitz 1982 Jan/Feb 8 Carnegia gigantea Bert Evans 1994 Sep/Oct 4 Carnegia gigantea Genevieve Friend 1974 Feb 18 Cephalocereus hoppenstedtii Bert Evans 1989 Jan/Feb 4 Cephalocereus polylopha John Gussett 1964 Nov/Dec 126 Cephalocereus senilis A.F. Hillsman 1970 Feb 20 Cephalocereus senilis Joe Cappleman 1991 Sep/Oct 5 Cephalocereus senilis Lana Sands 1994 Nov/Dec 6 Cephalocereus senilis Kathy Fewox 2009 Mar/Apr 11 Cephalocereus senilis Ann Russ 1971 Jun 66 Cephalocereus species John Liles 1983 Jan/Feb 8 Cephalocereus species Rowena Meadows 1967 Jan 4 Cereus azureus Bert Evans 2004 May/Jun 9 Cereus forbesii Josie Watts 2019 Nov/Dec 3 Cereus forbesii July Olson 1990 Mar/Apr 3 Cereus lophocereus schottii 'monstrosus' Norris Miertschin 1965 Nov/Dec 92 Cereus peruvianus Lawrence Weisser 1979 Jul/Aug 56 Cereus peruvianus Carole Syrjamaki 2005 Mar/Apr 10 Cereus peruvianus Will Crump 2016 Jul/Aug 4 Cereus peruvianus Bruce Moffett 1991 Jul/Aug 9 Cereus peruvianus c.p. Monstrosus Genevieve Friend 2013 May/Jun 11 Cereus peruvianus monstrose Ronald Chadick 1974 Apr 42 Cereus peruvianus monstrosus Terry Kanon 1988 May/Jun 26 Cereus tetragonus Don Inman 1985 Sep/Oct 61 Cereus venezuelensis Evelyn Crisp 1965 Jul 56 Chamacereus silvestrii Pete Hillsman 1980 Mar/Apr 28 Chamacereus silvestrii Norris Miertschin 1992 Sep/Oct 8 Chimaera: Hylocalycium David Thomas 2011 Mar/Apr 6 Cintia knizei Jeff Boggan 1975 Apr 42 Cleistocactus species Norris Miertschin 1991 Jan/Feb 8 Cleistocactus strausii Ken Kracht 2012 Nov/Dec 11 Cleistocactus strausii Cindy Gray 2019 Sept/Oct 7 Cleistocactus strausii Paul Stricklin 1984 Jul/Aug 52 Cochemiea poselgeri Mary Jo Gussett 1990 Sep/Oct 8 Cochemiea poselgeri David Thomas 2011 Jan/Feb 8 Coleocephalocereus aureus Phyllis McEuen 2005 Jul/Aug 7 Consolea Bobby Crabb 2017 May/Jun 3 Consolea corallicola Wally Ward 2005 Jan/Feb 8 Copiapoa cinerea Phyllis McEuen 2006 Jan/Feb 8 Copiapoa hypogaea var. laui Phyllis McEuen 1978 Mar/Apr 30 Copiapoa species Joy Arterburn 1981 Nov/Dec 84 Copiapoa species Ken Gardner 1989 Mar/Apr 7 Copiapoa tenuissima Flo Butler 2019 Jan/Feb 5 Copiapoa tenuissima Jeff Boggan 2020 July/Aug 6 Copiapoa tenuissima Chaden Yafi 1979 Jan/Feb 8 Coryphantha Richard May 2013 Nov/Dec 9 Coryphantha elephantidens Phyllis McEuen 1991 Jul/Aug 7 Coryphantha minima Leroy Kellogg 1995 Jul/Aug 8 Coryphantha missouriensis Dick McEuen 2006 May/Jun 5 Coryphantha robustispina David van Langen 1970 Sep 106 Coryphantha species R.W. Muckleroy 1975 Oct 114 Coryphantha species Evelyn Crisp 1977 Feb 18 Coryphantha species Norris Miertschin 2006 Nov/Dec 8 Coryphantha sulcata David van Langen 1966 Feb 13 Coryphantha vivipara Bud Anderson 1980 Jan/Feb 8 Cristate & Monstrosus Forms C.V. Kirkpatrick 2015 Mar/Apr 10 Cylindropuntia fulgida David Van langen

2 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 2020 March/April 3 Cylindropuntia imbricata var. imbricata Liliana Cracraft 1982 May/Jun 43 Discocactus species Evelyn Crisp 1987 Jan/Feb 8 Discocactus species John Gussett 2003 Jan/Feb 8 Discocactus species Phyllis McEuen 1986 May/Jun 36 Dolichothele species Ida Mae Stevens 1965 Jan 5 Dolichothele sphaerica Ray Riley 1966 Jan 5 Echinocactus grusonii Bettie Muckleroy 1982 May/Jun 41 Echinocactus grusonii John Gussett 1994 Mar/Apr 4 Echinocactus grusonii Keith Schwabe 2002 Jan/Feb 8 Echinocactus grusonii Dave Thomas 2013 Jul/Aug 7 Echinocactus grusonii Mario Rizo 1986 Jan/Feb 8 Echinocactus hamatacanthus Ben Muller 1995 May/Jun 6 Echinocactus hamatacanthus Genevieve Friend 1967 Jul 53 Echinocactus horizonthalonius Robert Bailey 1973 Nov/Dec 126 Echinocactus horizonthalonius Gus Homann 2007 Nov/Dec 6 Echinocactus horizonthalonius David van Langen 1979 Nov/Dec 77 Echinocactus polycephalus Richard May 1996 Sep/Oct 4 Echinocactus setispinus Genevieve Friend 1998 Sep/Oct 8 Echinocactus setispinus Genevieve Friend 1990 Jan/Feb 4 Echinocactus setispinus hamatus Andrew Voelkle 1970 Jul 82 Echinocactus species R.A. Riley 1976 Jan 6 Echinocactus species Joe Cappleman 1976 Jul 78 Echinocactus species Patsy Schlicht 1992 May/Jun 4 Echinocactus species Gene Byrd 1993 Sep/Oct 9 Echinocactus texensis Sally Daniels 1994 Mar/Apr 6 Echinocactus texensis Sally Daniels 1998 Mar/Apr 6 Echinocactus texensis Matt Demel 2013 Sep/Oct 6 Echinocactus texensis Wally Ward 1983 May/Jun 40 Echinocactus uncinatus v. wrightii Lee Turvey 2016 May/Jun 3 Echinocereus adustus David Van Langen 1980 Mar/Apr 26 Echinocereus chloranthus Jim Weedin 2009 May/Jun 6 Echinocereus dasyacanthus Fred Haase 1993 May/Jun 9 Echinocereus davisii Leroy Kellogg 2009 Jul/Aug 4 Echinocereus engelmannii David van Langen 1965 Feb 12 Echinocereus enneacanthus Skipper Wilson 2002 May/Jun 6 Echinocereus enneacanthus Fred Haase 2012 May/Jun 11 Echinocereus fasciculatus David van Langen 2013 Jul/Aug 9 Echinocereus fendleri David van Langen 2004 Mar/Apr 11 Echinocereus knippelianus Richard Stamper 1981 Mar/Apr 26 Echinocereus lloydii Jim Weedin 2000 Mar/Apr 8 Echinocereus pectinatus (Echinocereus dasyacanthus) Bruce Moffett 2003 May/Jun 8 Echinocereus pectinatus v. rubrispinum Liliana Rodriguez 2011 Mar/Apr 12 Echinocereus pentalophus Fred Haase 1967 Oct 76 Echinocereus reichenbachii Glenn Spraker 1972 Nov/Dec 126 Echinocereus reichenbachii W.W. Trammell 1994 May/Jun 8 Echinocereus reichenbachii Dick McEuen 2019 March/April 7 Echinocereus reichenbachii David Van Langen 2003 Mar/Apr 9 Echinocereus ridgidissimus v. rubispinus Fred Haase 1968 Jun 46 Echinocereus rigidissimus Louise Pennycuick 2014 Jan/Feb 9 Echinocereus rigidissimus subs. Rubispinus Charlie Gustin 2008 May/Jun 6 Echinocereus roetteri David van Langen 1976 Aug 90 Echinocereus species Caroline Pickens 1978 Sep/Oct 90 Echinocereus species Stephen Burda 1969 Nov/Dec 110 Echinocereus stramineus Ray Riley 1987 Jul/Aug 48 Echinocereus stramineus John Twining 2005 Mar/Apr 7 Echinocereus stramineus Fred Haase 2005 Jul/Aug 11 Echinocereus triglochiatus Hank Andresen 2007 Sep/Oct 5 Echinocereus triglochiatus Paul Stricklin

3 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 2017 Sep/Oct 4 Echinocereus triglochidatus Paul Stricklin 1965 Apr 25 Echinocereus triglochidiatus Ray Riley 1994 Sep/Oct 6 Echinocereus triglochidiatus Hank Andresen 1996 May/Jun 5 Echinocereus virdiflorus var. viridiflorus Dick McEuen 2018 Jan/Feb 4 Echinocereus viridi orus David Van Langen 2015 Jul-Oct 8 Echinocereus viridi orus var. canus David Van Langen 2017 Mar/Apr 4 Echinocereus viridi orus var. correllii David Van Langen 1991 Mar/Apr 8 Echinofossulocactus B&R (Stenocactus) John Gussett 1975 Jun 66 Echinofossulocactus species James Moody 1984 Mar/Apr 22 Echinofossulocactus violaciflorus Charles Kirkpatrick 2008 Sep/Oct 7 Echinomastus johnsonii David van Langen 1991 Jan/Feb 10 Echinomastus mariposensis Roy Paramore 2009 Nov/Dec 6 Echinomastus mariposensis Randy Heinbaugh 1965 Jun 48 Echinopsis Bert/Elzine Evans 2001 Sep/Oct 8 Echinopsis (Easter Lily Cactus) Tony Beekenkamp 1987 Nov/Dec 78 Echinopsis calochlora Hank Andresen 2016 Mar/Apr 9 Echinopsis Hybrids Kathy Fewox 1977 Sep/Oct 92 Echinopsis species Tom Pickens 1991 May/Jun 5 Echinopsis species Hank Andresen 2003 Jul/Aug 5 Epiphyllum Tony Beekenkamp 2015 Jan/Feb 9 Epiphyllum hookeri subspecies guatemalense Karla Halpaap-Wood 1994 Jul/Aug 6 Epiphyllum macropterum Don James 1993 Jan/Feb 6 Epiphyllum rhipsalis Lana Sands 1966 Mar 21 Epiphyllum species Bess Mason 1972 Feb 18 Epiphyllum species Frank Schlicht 1980 May/Jun 46 Epiphyllum strictum Evelyn Crisp 1979 May/Jun 42 Epiphyllums and their hybrids Evelyn Crisp 1986 Nov/Dec 78 Epiphytic Cacti Evelyn Crisp 1965 May 40 Epithelantha micromeris R.W. Muckleroy 1971 Apr 42 Epithelantha micromeris Joe Cappleman 1982 Nov/Dec 93 Epithelantha micromeris Flo Worstell 1986 Jul/Aug 46 Epithelantha micromeris Roy Paramore 1988 Jul/Aug 37 Epithelantha micromeris Pat Dulude 1996 Jan/Feb 8 Epithelantha micromeris Roy Paramore 2008 Sep/Oct 5 Epithelantha micromeris Cindy Gray 1975 Jul 78 Epithelantha species Matt Johnson 2016 Mar/Apr 6 Eriosyce napina subsp. challensis Jeff Boggan 1997 Sep/Oct 6 Escobaria hesteri Roy Paramore 1968 Jan 4 Escobaria runyonii Walter Forry 1970 May 58 Escobaria species R.H. Gregg 2000 May/Jun 8 Escobaria strobiliformis Roy Paramore 1967 Apr 29 Escobaria tuberculosa R.H. Gregg 2012 Jul/Aug 7 Escobaria tuberculosa David van Langen 2007 Jul/Aug 4 Escobaria vivipara David van Langen 2001 Nov/Dec 6 Espostoa Ann Russ 1968 May 36 Espostoa lanata Mrs. James Valigura 2006 Jul/Aug 6 Espostoa lanata Josie Watts 2002 Mar/Apr 6 Espostoa nana Liliana Rodriguez 2018 Jan/Feb 10 Espostoa nana Phyllis McEuen 1966 Sep 68 Ferocactus acanthodes Skipper Wilson 1986 Jul/Aug 48 Ferocactus acanthodes Hank Andresen 2014 Sep/Oct 11 Ferocactus Cylindraceus David van Langen 1985 Nov/Dec 73 Ferocactus glaucescens C.V. Kirkpatrick 2013 May/Jun 6 Ferocactus glaucescens Fred Haase 2007 May/Jun 6 Ferocactus glaucesens Hank Andresen 2014 May/Jun 5 Ferocactus Hamatacanthus David van Langen 1967 Sep 69 Ferocactus latispinus R.H. Gregg 1968 Oct 88 Ferocactus rectispinus Gene Williams

4 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1970 Oct 118 Ferocactus species C.B. Gilman 1975 May 54 Ferocactus species Ben Wyly 1976 Oct 114 Ferocactus species Unknown 1997 Sep/Oct 8 Ferocactus species Phyllis McEuen 2011 Nov/Dec 3 Ferocactus wislizeni Liliana Cracraft 2005 May/Jun 8 Frailea perumbilicata Wally Ward 1969 Feb 16 Frailea pumila Bob Bailey 1977 Sep/Oct 94 Frailea species Wayne Walton, Jr. 1985 Jul/Aug 50 Fred? Norris Miertschin 2000 Jul/Aug 8 Geohintonia mexicana Leroy Kellogg 1989 Mar/Apr 9 Gymnocalicium chiquitanum Tim Evans 2002 Sep/Oct 8 Gymnocalicium ragonesii Wally Ward 1986 May/Jun 34 Gymnocalicium species Tony Beekenkamp 2011 Jul/Aug 10 Gymnocalycium anisitsii ssp. Damsii Jeff Boggan 2000 May/Jun 6 Gymnocalycium bayrianum Don James 1996 Nov/Dec 6 Gymnocalycium bruchii Kathy Fewox 1972 Jun 66 Gymnocalycium damsii Bobbie Reinke 2011 May/Jun 10 Gymnocalycium denudatum Josie Watts 2016 Nov/Dec 8 Gymnocalycium horstii Phyllis McEuen 1974 Oct 118 Gymnocalycium michanovichii v. friedrichiae Gerald Arp 1969 Jul 66 Gymnocalycium mihanovichii Evelyn Crisp 1996 Jan/Feb 6 Gymnocalycium mihanovichii 'Hibotan' Lana Sands 2008 Nov/Dec 4 Gymnocalycium nidulans Wally Ward 2004 Jan/Feb 6 Gymnocalycium obductum Piltz Paul Stricklin 1990 Jul/Aug 3 Gymnocalycium pfanzii v. albopulpa John Gussett 1993 May/Jun 11 Gymnocalycium ragonesii Wallace Ward 1997 May/Jun 6 Gymnocalycium schickendantzii Grant Wells 1966 Aug 60 Gymnocalycium species Glenn Spraker 1975 Mar 30 Gymnocalycium species R.H. Gregg 1976 Nov/Dec 126 Gymnocalycium species R.W. Muckleroy 1977 Jul/Aug 71 Gymnocalycium species Evelyn Crisp 1978 May/Jun 50 Gymnocalycium species Wayne Walton, Jr. 2015 Nov/Dec 3 Gymnocalycium spegazzinii ssp cardenasianum Fred Haase 2006 Mar/Apr 4 Gymnocalycium stellatum Wally Ward 2017 Mar/Apr 8 Hamatacactus Hamatacanthus Bruce Moffett 1964 May 75 Hamatocactus setispinus Dick Muckleroy 1972 Jul 78 Hamatocactus setispinus Roy Hoke 1992 Mar/Apr 7 Hamatocactus setispinus Ben Muller 2014 Jan/Feb 5 Hamatocactus Setispinus Engelmann Dick McEuen 2016 Sep/Oct 6 Hamatocactus setispinus v. setaceus Richard Stamper 1971 Oct 114 Hamatocactus species Ralph Artis 1975 Aug 90 Hamatocactus species Catherine Williams 1984 Nov/Dec 77 Hamatocactus species Mary Jo Gussett 1973 Aug 90 Harrisia bonplantii Bobbie Reinke 1979 May/Jun 40 Hatiora salicornioides Bettie Muckleroy 2013 Jan/Feb 6 Hatiora salicornioides Karla Halpaap-Wood 1987 Jul/Aug 50 Hertrichocereus beneckei Mary Clarkson 1996 Mar/Apr 8 Hildwintera aureispina Ritter fa. Cristata Wally Ward 2020 Jan/Feb 7 Holiday cactus Robert Smith 1964 Jul 88 Homalocephala texensis R.W. Muckleroy 1968 Sep 78 Homalocephala texensis Walter Forry 1974 Nov/Dec 130 Homalocephala texensis Pete Hillsman 1979 Jan/Feb 6 Homalocephala texensis Evelyn Crisp 1982 Jul/Aug 61 Homalocephala texensis Archie Hicks 2003 Nov/Dec 10 Hylocereus truncata Lana Sands 1967 Feb 12 Hylocereus undatus Johnny Smolik 1983 Sep/Oct 68 Islaya species Joy Barta 1967 Nov/Dec 84 Lemairocereus marginatus Ray Riley

5 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1972 Oct 114 Lemairocereus species Monnie Ritter 1977 May/Jun 56 Lemairocereus species Monnie Ritter 1966 May 39 Leuchtenbergia principis Pete Hillsman 1972 May 54 Leuchtenbergia principis R.H. Gregg 1977 Mar 30 Leuchtenbergia principis R.H. Gregg 1980 Sep/Oct 86 Leuchtenbergia principis R.H. Gregg 1985 Jul/Aug 52 Leuchtenbergia principis Hank Andresen 1994 Jan/Feb 6 Leuchtenbergia principis Hank Andresen 2001 Jul/Aug 8 Lobivia arachnacantha Hank Andresen 1995 Sep/Oct 4 Lobivia silvestrii Don James 1983 Jul/Aug 57 Lobivia species Tim Evans 1987 May/Jun 36 Lobivia species Tony Beekenkamp 1995 Mar/Apr 6 Lobivia species Jim Tally 1982 Sep/Oct 79 Lophocereus schottii Bert Evans 1978 Jul/Aug 70 Lophocereus schottii forma monstrosus R.H. Gregg 1964 Aug 97 Lophophora williamsii L.A. Weisser 1973 Mar 30 Lophophora williamsii Gus Homann 1981 Jan/Feb 8 Lophophora williamsii Ken Wilder 1992 Jan/Feb 8 Lophophora williamsii Tim Evans 2014 Mar/Apr 6 Lophophora williamsii Liliana Cracraft 2013 May/Jun 8 Maihueniopsis clavarioides Jeff Boggan 1986 Sep/Oct 66 Mammillaria – dichotomous species Florence Butler 2017 Jul/Aug 6 Mammillaria bertholdii Jeff Boggan 1964 Nov/Dec 122 Mammillaria bocasana Corinne Montgomery 1972 Aug 90 Mammillaria bocasana Roy Paramore 1998 Jan/Feb 6 Mammillaria bocasana Grant Wells 2000 Jan/Feb 5 Mammillaria bocasana - "Fred" David Thomas 2001 Jan/Feb 8 Mammillaria bocasana - "Fred" Keith Schwabe 2001 Sep/Oct 6 Mammillaria bocasana and M. plumosa Roy Paramore 1965 Sep 76 Mammillaria camptotricha J.Z./Liza Ainsworth 1990 Jan/Feb 6 Mammillaria camptotricha and v. albescens Florence Butler 1966 Jun 44 Mammillaria candida R.W. Muckleroy 1969 Oct 98 Mammillaria candida Jay Wilson 1984 Sep/Oct 68 Mammillaria candida Roy Paramore 1996 Jul/Aug 6 Mammillaria candida Roy Paramore 1995 Mar/Apr 4 Mammillaria carmenae Hank Andresen 2006 Jan/Feb 10 Mammillaria carmenae Dave Thomas 2018 Nov/Dec 10 Mammillaria chionocephala ‘ritteriana’ Cindy Gray 2003 Sep/Oct 10 Mammillaria coahuilensis Leroy Kellogg 1974 Jan 6 Mammillaria compressa Monnie Ritter 2015 Jan/Feb 6 Mammillaria crinita ssp crinita mostruosa Josie Watts 2011 May/Jun 5 Mammillaria crucigera subsp. Tlalocii Richard Stamper 1980 Sep/Oct 84 Mammillaria elegans Carole Syrjamaki 1974 Jul 82 Mammillaria elongata Geraldine Warren 1978 Jan/Feb 10 Mammillaria elongata Pauline Miertschin 1978 Nov/Dec 108 Mammillaria elongata Unknown 1979 Sep/Oct 78 Mammillaria elongata Roy Paramore 1999 Mar/Apr 8 Mammillaria elongata Ann Russ 2010 Sep/Oct 4 Mammillaria elongata Cindy Gray 2019 July/Aug 4 Mammillaria elongata var. cristata Josie Watts 1992 Jul/Aug 9 Mammillaria erythrosperma David Thomas 2002 Jan/Feb 6 Mammillaria geminispina Hayworth 1924 Dick McEuen 2002 Jul/Aug 5 Mammillaria gemnispina of the series leucocephalae Mike Navolio 2015 Nov/Dec 4 Mammillaria Ginsa-Maru Josie Watts 1992 Mar/Apr 5 Mammillaria gracilis John Gussett 2000 Jan/Feb 8 Mammillaria gracilis David Thomas 2020 March/April 6 Mammillaria gracilis fragilis monstrose Chaden Yafi 2001 Mar/Apr 6 Mammillaria gracilis v. fragillis Josie Watts

6 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1984 May/Jun 38 Mammillaria guelzowiana Hank Andresen 1992 Jan/Feb 10 Mammillaria guelzowiana Hank Andresen 2004 Nov/Dec 3 Mammillaria guelzowiana Fred Haase 1974 Aug 94 Mammillaria guerreronis Gene Williams 1996 Mar/Apr 6 Mammillaria hahniana Hank Andresen 1975 Jan 6 Mammillaria hemisphaerica Evelyn Crisp 2013 Jan/Feb 11 Mammillaria hernandezii Josie Watts 1968 Nov/Dec 102 Mammillaria herrerae A.F. Hillsman 1993 Jan/Feb 2 Mammillaria hesteri Roy Paramore 2015 Nov/Dec 6 Mammillaria heyderi ssp heyderi Cindy Gray 1997 May/Jun 8 Mammillaria heyderi var heyderi Don James 1985 May/Jun 36 Mammillaria hidalgensis Lee Turvey 1985 Mar/Apr 22 Mammillaria huitzilopochtli Grant Wells 2004 Mar/Apr 8 Mammillaria humboltii Hank Andresen 1995 Jan/Feb 6 Mammillaria lasiacantha Roy Paramore 2019 May/June 5 Mammillaria lasiacantha David Van Langen 2004 Jan/Feb 8 Mammillaria lasicantha Engelmann Dick McEuen 2003 Sep/Oct 8 Mammillaria lenta Mike Navolio 2012 Jan/Feb 8 Mammillaria lenta Josie Watts 2020 May/June 7 Mammillaria longimamma Josie Watts 2018 May/Jun 8 Mammillaria magnimama Josie Watts 1986 Mar/Apr 20 Mammillaria magnimamma Vernon Butler 1999 Sep/Oct 8 Mammillaria microcarpa Roy Paramore 2010 Mar/Apr 9 Mammillaria perbella Josie Watts 1987 Mar/Apr 22 Mammillaria plumosa Criss Ivy 2006 Jul/Aug 4 Mammillaria plumosa Richard Stamper 1974 Mar 30 Mammillaria pottsii Roy Paramore 1986 Jan/Feb 6 Mammillaria pottsii Roy Paramore 2000 Mar/Apr 6 Mammillaria pottsii Grant Wells 2012 Nov/Dec 7 Mammillaria pottsii David van Langen 2015 May/Jun 9 Mammillaria prolifera Liliana Cracraft 1997 Mar/Apr 6 Mammillaria prolifera var. texana (M. multiceps) Wally Ward 1984 Jul/Aug 54 Mammillaria ramillosa Criss Ivy 2008 Jul/Aug 4 Mammillaria sartorii Richard Stamper 2003 Mar/Apr 12 Mammillaria schiedeana Hank Andresen 2008 May/Jun 7 Mammillaria schiedeana Wally Ward 1976 May 54 Mammillaria species Mary Jo Gussett 1976 Feb 18 Mammillaria species Roy Paramore 1978 Sep/Oct 92 Mammillaria species Ken Wilder 2017 Nov/Dec 10 Mammillaria spinosissima Un Pico Cindy Gray 1998 Jan/Feb 8 Mammillaria standleyi Ronnie Sims 2018 Sep/Oct 8 Mammillaria thornberi David Van Langen 2017 Jan/Feb 8 Mammillaria vetula ssp. gracilis Richard Holland 2018 Sep/Oct 4 Mammillaria wrightii David Van Langen 2010 Nov/Dec 4 Mammillaria zeilmanniana Randy Heinbaugh 1989 Jul/Aug 6 Mammillaria zephyranthoides Hank Andresen 1995 May/Jun 7 Mammillarias, Hook-Spined Phyllis McEuen 2010 Jan/Feb 4 Matucana genus Phyllis McEuen 1987 Mar/Apr 20 Matucana madisoniorum Vernon Butler 1979 Sep/Oct 76 Matucana species Tom Pickens 2000 Sep/Oct 6 Melocactus Hank Andresen 2009 Sep/Oct 4 Melocactus amoenius Wally Ward 2014 Jul/Aug 11 Melocactus Brederooianus buining Wally Ward 2012 Jul/Aug 9 Melocactus concinnus Buining and Brederoo Wallace Ward 2016 Sep/Oct 4 Melocactus curvispinus ssp. caesius Wally Ward 2018 May/Jun 5 Melocactus deinacanthus Wallace Ward 1987 Jan/Feb 6 Melocactus glaucesens C.V. Kirkpatrick 2005 Sep/Oct 8 Melocactus matanzanus L. Rodriguez-Cracraft

7 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 2018 Jul/Aug 8 Melocactus neryi Kathleen Canty 1972 Sep 102 Melocactus oaxacensis Anita Cappleman 1968 Jul 52 Melocactus species Alice Newman 1990 Jul/Aug 5 Melocactus species Tony Beekenkamp 1995 Sep/Oct 6 Melocactus species Gene Byrd 2016 Jan/Feb 6 Micranthacereus strekeri Dick McEuen 1981 May/Jun 42 Monvillea species Ida Mae Stevens 1998 May/Jun 7 Monvillea spegazzinii Josie Watts 1971 Jul 67 Myrtillocactus geometrizan Bert Evans 1981 Sep/Oct 70 Myrtillocactus geometrizan C.V. Kirkpatrick 2013 Nov/Dec 6 Myrtillocactus geometrizans Liliana Cracraft 2002 May/Jun 8 Neochileana napina Josie Watts 1985 Jan/Feb 6 Neochilenia species Vernon Butler 1990 May/Jun 10 Neogomesia agavoides Leroy Kellogg 1987 Sep/Oct 64 Neolloydia conoidea Roy Paramore 2009 Jan/Feb 4 Neolloydia conoidea Phyllis McEuen 1965 Mar 21 Neomammillaria hemisphaerica R.W. Muckleroy 1997 Jul/Aug 6 Neoporteria (Pyrrhocactus) bulbocalyx Mike Madera 1988 Mar/Apr 14 Neoporteria artrispinosa Hank Andresen 1988 Sep/Oct 50 Neoporteria gerocephala Joseph Layne 1997 Nov/Dec 6 Neoporteria gerocephala Kathy Fewox 2019 Nov/Dec 5 Neoporteria multicolor Cindy Gray 1979 Mar/Apr 24 Neoporteria nidus Richard May 2008 Jul/Aug 6 Nopalea cochenillifera Bobby Crabb 1993 Nov/Dec 6 Nopalxochia phyllantoides Kathy Fewox 2009 Mar/Apr 4 Notocacteae blossfeldia liliputiana Jeff Boggan 1999 Sep/Oct 6 Notocactus Tony Beekenkamp 1994 Jul/Aug 8 Notocactus genus Tony Beekenkamp 1988 Mar/Apr 13 Notocactus haselbergii Tim Evans 2018 Mar/Apr 9 Notocactus haselbergii Liliana Cracraft 1989 Nov/Dec 7 Notocactus leninghausii Tony Beekenkamp 1984 Sep/Oct 66 Notocactus magnificus Tim Evans 1990 Nov/Dec 4 Notocactus magnificus Kathy Fewox 1998 Jul/Aug 8 Notocactus magnificus Grant Wells 2010 May/Jun 4 Notocactus magnificus Wally Ward 2017 May/Jun 5 Notocactus Magnificus Robert Smith 1967 Mar 20 Notocactus scopa Bud Anderson 1978 May/Jun 48 Notocactus species Joy Arterburn 1971 Aug 90 Obregonia denegrii Ray Riley 1973 May 54 Obregonia denegrii Carolyn Wyly 1981 May/Jun 40 Obregonia denegrii Evelyn Crisp 1985 Jan/Feb 8 Obregonia denegrii Carolyn Wyly 1991 May/Jun 7 Obregonia denegrii David Thomas 1993 Jul/Aug 7 Obregonia denegrii Roy Paramore 2011 Sep/Oct 5 Obregonia denegrii Randy Heinbaugh 2020 July/Aug 3 Opuntia abjecta Kathleen Cantry 1992 Nov/Dec 6 Opuntia argentina David Thomas 2010 Jul/Aug 7 Opuntia azurea var. parva Fred Haase 1992 May/Jun 6 Opuntia bigelovii Tim Evans 1971 Nov/Dec 126 Opuntia bigelovii engelmann Gus Homann 1996 May/Jun 8 Opuntia compressa var. grandiflora Don James 2012 May/Jun 8 Opuntia cylindrical cristata Richard Holland 2007 Mar/Apr 10 Opuntia cylindropuntieae Richard Stamper 2000 Sep/Oct 8 Opuntia engelmannii var. bergeriana Roger Friend 2012 Mar/Apr 4 Opuntia engelmannii var. Lindheimeri 'linguiformis' Jeff Boggan 1998 Mar/Apr 8 Opuntia fulgida Dick McEuen 1990 Sep/Oct 10 Opuntia fulgida mamillata (Monstrose) Kathy Voelkle 2017 Jul/Aug 4 Opuntia galapageia galapageia Kathleen Canty

8 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 2001 Mar/Apr 8 Opuntia leptocaulis Paul Stricklin 2014 Mar/Apr 11 Opuntia Leucotricha Fred Haase 2018 Sep/Oct 3 Opuntia leucotricha Fred Haase 1974 May 54 Opuntia linguiformis Ralph Artis 1965 Oct 84 Opuntia microdasys Bert/Elzine Evans 1993 Jul/Aug 8 Opuntia microdasys Liliana Rodriguez 2013 Mar/Apr 5 Opuntia microdasys Richard Holland 1988 May/Jun 27 Opuntia microdasys cristata Tim Evans 1999 Jan/Feb 8 Opuntia molinensis Roy Paramore 2015 Jul-Oct 6 Opuntia pusilla Wally Ward 1999 Jul/Aug 6 Opuntia pusilla Haworth Bruce Moffett 2001 Jul/Aug 6 Opuntia ramosissima Dick McEuen 1973 Apr 42 Opuntia rifida Larry Fisher 2002 Jul/Aug 8 Opuntia rufida Roger Friend 1975 Sep 102 Opuntia species Mary Jo Gussett 1977 Nov/Dec 111 Opuntia species John Gussett 1983 Nov/Dec 82 Opuntia species Unknown 2010 Jul/Aug 3 Opuntia spinosibacca David van Langen 1994 May/Jun 6 Opuntia streptacantha Liliana Rodriguez 1970 Apr 46 Opuntia subulata Bud Anderson 1994 Jan/Feb 4 Opuntia subulata John Gussett 2011 Nov/Dec 9 Opuntia tunicata Richard Stamper 1988 Nov/Dec 60 Opuntia tunicata v. tunicata Tony Beekenkamp 2006 Sep/Oct 11 Opuntia violacea var. macrocentra Hank Andresen 1977 Jul/Aug 73 Oreocereus celsianus Caroline Pickens 1997 Jul/Aug 8 Oreocereus trollii Hank Andresen 2014 Jul/Aug 14 Orocereus celsianus Liliana Cracraft 1995 Jan/Feb 8 Ortegocactus macdougallii John Gussett 2019 March/April 4 Pachycereus marginatus Liliana Cracraft 2017 Sep/Oct 5 Pachycereus marginatus Daryl Rebrovich 2020 Jan/Feb 4 Pachycereus pringlei Andrea Varesic 1966 Jul 52 Parodia aureispina Ruby Keeler 2010 May/Jun 8 Parodia leninghausii Ann Russ 2011 Jul/Aug 6 Parodia magnifica Richard Holland 2012 Mar/Apr 9 Parodia sellowii Jeff Boggan 1977 Jul/Aug 75 Parodia species James Moody 1980 Jul/Aug 66 Parodia species Richard May 1984 May/Jun 36 Parodia species Joy Barta 1982 Mar/Apr 25 Pediocactus species Evelyn Crisp 1966 Nov/Dec 84 Pelecyphora aselliformis Ray Riley 1999 May/Jun 8 Pelecyphora aselliformis Leroy Kellogg 2006 Sep/Oct 7 Pelecyphora aselliformis Jeff Boggan 1989 May/Jun 10 Pelecyphora species Roy Paramore 1998 Sep/Oct 6 Pelecyphora strobiliformis Leroy Kellogg 2018 Mar/Apr 6 Pelecyphora strobiliformis Jeff Boggan 1975 Nov/Dec 126 Pelecyphora, Encephalocarpus & Normanbokea Frank Schlicht 1971 Jan 6 Peniocereus greggii Monnie Ritter 1983 Jan/Feb 10 Peniocereus greggii Criss Ivy 2004 Sep/Oct 7 Peniocereus greggii Dick McEuen 1976 Mar 30 Peniocereus species Dick Gregg 2012 Jan/Feb 14 Pereskia aculeata var. godseffiana Dick McEuen 1981 Jul/Aug 56 Pereskia species Mary Jo Gussett 1982 Jul/Aug 59 Pereskia species Norris Miertschin 1992 Jul/Aug 7 Pereskia species Evelyn Etter 2019 May/June 3 Pilosocereus pachycladus ssp. Pachycladus Kathleen Cantry 2015 Jul-Oct 5 Pygmaeocereus bieblii Jeff Boggan 2003 May/Jun 6 Rebutia heliosa v. cajasensis Richard Stamper 2006 May/Jun 9 Rebutia muscula Ann Russ

9 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 1972 Jan 6 Rebutia species Mary Jo Gussett 1980 May/Jun 48 Rebutia species Unknown 1997 Mar/Apr 4 Rhipsalis Marty Suitor 2017 Jan/Feb 6 Rhipsalis Karla Halpaap-Wood 2001 Mar/Apr 9 Rhipsalis “The Wicker Work Cactus” Lana Sands 1978 Jul/Aug 68 Rhipsalis crispata Dick Muckleroy 1977 Jan 6 Rhipsalis species Frank Schlicht 1983 Jul/Aug 53 Rhipsalis species Evelyn Crisp 1995 Nov/Dec 7 Rhipsalis species Kathy Fewox 1973 Jun 66 Rhombophyllum nelii John Liles 1968 Feb 12 Ripsalidopsis rosea Ruth Gregg 1977 Apr 42 Schlumbergera gaertneri Bettie Muckleroy 1969 Jan 6 Schlumbergera russeliana A.E. Hillsman 1978 Jan/Feb 8 Sclerocactus polyancitrus Richard May 1971 Sep 102 selenicereus species Howard Rubin 1981 Jul/Aug 58 selenicereus species Elzine Evans 1973 Jul 78 Setiechinopsis mirabilis Elizabeth Rudersdorf 1982 Mar/Apr 23 Setiechinopsis mirabilis Elzine Evans 1989 May/Jun 8 Setiechinopsis mirabilis Ken Kracht 1969 Apr 32 Stenocactus K. Sch. Bert Evans 1966 Oct 76 Stenocactus species Joe Montgomery 2016 Jan/Feb 4 Stenocereus pruinosus Daryl Rebrovich 2015 Jan/Feb 8 Stenocereus thurberi Phyllis McEuen 1989 Jul/Aug 8 Stephanocereus leucostele Curtis Brown 2016 May/Jun 6 Strombocactus corregidorae Jeff Boggan 1984 Jan/Feb 8 Strombocactus disciformis John Gussett 1999 Nov/Dec 6 Sulcorebutia rauschii Kathy Fewox 2003 Jul/Aug 6 Sulcorebutia rauschii Richard Stamper 1979 Jul/Aug 58 Sulcorebutia species Joy Arterburn 2011 Sep/Oct 4 Tephrocactus articulates var. diadematus Cindy Gray 2020 May/June 4 Tephrocactus articulaus Karla Hapaap-Wood 2019 July/Aug 7 Tephrocactus geometricus David Thomas 2008 Jan/Feb 4 Tephrocactus molinensis Dick McEuen 1966 Apr 27 Thelocactus bicolor Glenn Spraker 1971 may/Con 6 Thelocactus bicolor Glenn Spraker 2017 Nov/Dec 11 Thelocactus bicolor David Van Langen 1980 Jan/Feb 10 Thelocactus bicolor v. schottii Richard May 1999 Mar/Apr 10 Thelocactus bicolor v. schottii Hank Andresen 1989 Sep/Oct 10 Thelocactus conothele John Gussett 2008 Mar/Apr 3 Thelocactus conothelos Richard Stamper 1971 may/Con 5 Thelocactus flavidispinus Gene Williams 1998 Jul/Aug 6 Thelocactus macdowellii Roy Paramore 1987 May/Jun 34 Thelocactus schwarzii C.V. Kirkpatrick 2007 Jan/Feb 7 Thelocactus setispinus Dick McEuen 1970 Jun 70 Thelocactus species L.A. Weisser 1976 Apr 42 Thelocactus species Glenna Valigura 1981 Mar/Apr 24 Trichocereus species C.V. Kirkpatrick 2002 Sep/Oct 6 Tubinicarpus schmiedickeanus v. klinkerianus Leroy Kellogg 2006 Mar/Apr 6 Turbinicarpus alonsoi Richard Stamper 2015 May/Jun 5 Turbinicarpus bonatzii Richard Stamper 2000 Jul/Aug 6 Turbinicarpus schmiedickeanus v. schmiedickeanus Mike Navolio 1981 Jan/Feb 10 Turbinicarpus species Marjorie Parmely 1990 May/Jun 8 Turbinicarpus valdeziana & pseudopectinata Hank Andresen 2009 Sep/Oct 6 Turbinocarpus jauernigii Richard Stamper 1982 Sep/Oct 77 Uebelmannia pectinifera C.V. Kirkpatrick 2002 Nov/Dec 6 Uebelmannia pectinifera Hank Andresen 2019 Sept/Oct 3 Weberbauerocereus winterianis Judy Olson 1981 Sep/Oct 68 Weingartia species Joy Barta

10 CACTUS OF THE MONTH YEAR MONTHS PAGE TITLE AUTHOR 2001 May/Jun 6 Wilcoxia Genevieve Friend 1964 Sep 105 Wilcoxia poselgeri Dick Muckleroy 1969 Jun 54 Wilcoxia poselgeri Norris Miertschin 1993 Mar/Apr 7 Wilcoxia poselgeri Andrew Voelkle 1974 Sep 106 Wilcoxia species Joe Cappleman 1999 Jan/Feb 6 Winterocereus aureispinus Paul Stricklin 1984 Mar/Apr 24 Wittia amazonica Evelyn Crisp 2010 Mar/Apr 4 Yavia cryptocara Jeff Boggan