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Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics







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CCDB → Angiosperms → Hypericaceae → Hypericum → Hypericum perforatum

121 chromosome counts in Hypericum perforatum:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Hypericum perforatum Hypericum perforatum L.   16 IPCN online Mayr, A. 2002. In O. Stöhr, C. Schröck & W. Strobl, Beiträge zur Flora de Bundesländer Salzburg und Oberösterreich. Linzer Biol. Beitr. 34(2): 1393–1505.
!   Hypericum perforatum Hypericum perforatum L.   32 IPCN online Lippert. 2006. Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten. Ber. Bayer. Bot. Ges. 76: 85–110.
!   Hypericum perforatum Hypericum perforatum L.   32 CromoCat 2015 Lippert, W. (2006). Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten Ber. Bayer. Bot. Ges. 76: 85–110
  Hypericum perforatum L. Hypericum perforatum L.   16 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   16 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   48 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   48 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   32 CHROBASE GADELLA T.W.J., KLIPHUIS E. - 1970. Cytotaxonomic investigations in some Angiosperms collected in the valley of Aosta and in the National Park Gran Paradiso.. Caryologia , 23(3): 363-379.
  Hypericum perforatum L. Hypericum perforatum L.   32 CHROBASE LOEVE A., LOEVE D. - 1982. IOPB chromosome number reports LXXVI.. Taxon , 31(3): 583-587.
  Hypericum perforatum L. Hypericum perforatum L.   16 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   16 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   32 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   32 CHROBASE CICCARELLI D., GARBARI F., MARTONFI P. - 2001. Mediterranean chromosome number reports - 11.. Flora Mediterranea , 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   32 Slovakia Database Májovský J. et al., 1970a: Index of chromosome numbers of Slovakian flora (Part 1). - Acta Fac. Rerum Nat. Univ. Comen., Bot. 16: 1-26.
  Hypericum perforatum L. Hypericum perforatum L.   32 Slovakia Database Mártonfi P., 2001: New species of the genus Hypericum sect. Hypericum (Guttiferae) from Slovakia. - Folia Geobotanica 36/4: 371-384.
  Hypericum perforatum L. Hypericum perforatum L.   32 Slovakia Database Murín A., 1997: Karyotaxonomy of some medicinal and aromatic plants. - Thaiszia - J. Bot., Košice 7: 75-88.
  Hypericum perforatum L. Hypericum perforatum L. 16   IAPT/IOPB IAPT/IOPB Chromosome Data 13
  Hypericum perforatum L. Hypericum perforatum L.   32 IAPT/IOPB IAPT/IOPB Chromosome Data 8
!   Hypericum perforatum L. Hypericum perforatum L.   32 British Isles cytology Hollingsworth, P.M., Gornall, R.J., Bailey, J.P. Watsonia 19: 134-137 (1992)
  Hypericum perforatum L. Hypericum perforatum L.   32 Flora Iberica Chromosome numbers of vascular plants from Austria, Mallorca and Yugoslavia. Nilsson, O. & P. Lassen.Bot. Not.124: 270-276(1971).
  Hypericum perforatum L. Hypericum perforatum L.   32 Flora Iberica Cytotaxonomy of spanish plants. IV.-Dicotyledons: Caesalpinacea-Asteracea. Lve, A. & E. Kjellqvist.Lagascalia4(2): 153-211(1974).
  Hypericum perforatum L. Hypericum perforatum L.   32 Flora Iberica Numeros cromossomicos de algumas especies portuguesas de Hypericum L. Queirs, M.Rev. Biol. Univ. Oviedo7: 51-57(1991).
!   Hypericum perforatum L. Hypericum perforatum L.   32 flora of NW Europe http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=2115
  Hypericum perforatum L. Hypericum perforatum L.   32 Poland Database Skali?ska M., Ma?ecka J., Izmai?ow R. et al. 1974. Further studies in chromosome numbers of Polish Angiosperms. Tenth contribution. Acta Biol. Cracov. Ser. Bot. 17, 133-163.
  Hypericum perforatum L. Hypericum perforatum L.   32 Poland Database Pogan E., Rychlewski J. et al. 1980 a. Further studies in chromosome numbers of Polish Angiosperms. Part XIV. Acta Biol. Cracov. Ser. Bot. 22, 129-153.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Dmitrieva, S. A. & V. I. Parfenov. 1985. Kariologicheskaja kharakteristika nekotorykh vidov poleznykh rastenij flory Belorussii. Izv. Akad. Nauk Belorussk. SSR, Ser. Biol. Nauk 6: 3–8.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online KAPOOR, B. M. 1982. In IOPB chromosome number reports LXXIV. Taxon 31: 119–120.
  Hypericum perforatum L. Hypericum perforatum L.   32, (48) IPCN online Parfenov, V. I. & S. A. Dmitrieva. 1985. Kariologicheskaja differenciacija u vidov flory Belorussii i ee rol, v formoobrazovanii. Dokl. Akad. Nauk Byelorussk. SSR. (Minsk). 29(6): 544–557.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Arohonka, T. 1982. Chromosome counts of vascular plants of the island Seili in Nauvo, southwestern Finland. Turun Yliopiston Julkaisuja, Sar. A 2, Biol.-Geogr. 3: 1–12.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Löve, A. & D. Löve. 1982. IOPB chromosome number reports LXXVII. Taxon 31: 766–768.
  Hypericum perforatum L. Hypericum perforatum L. 16, 17, 18 32, 48 IPCN online Reynaud, C. 1986. étude cytotaxonomique des Millepertuis du bassin Méditerranéen et des Iles Canaries. Bull. Soc. Bot. France, Lett. Bot. 133: 167–177.
  Hypericum perforatum L. Hypericum perforatum L.   16 IPCN online Papanicolaou, K. 1984. Chromosome Number Reports LXXXII. Taxon 33: 126–134.
  Hypericum perforatum L. Hypericum perforatum L. 16   IPCN online Mulligan, G. A. 1984. Chromosome numbers of some plants native and naturalized in Canada. Naturaliste Canad. 111: 447–449.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Hill, L. M. 1989. IOPB chromosome data 1. Int. Organ. Pl. Biosyst. Newslett. (Zurich) 13: 17–19.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Parfenov, V. I. & S. A. Dmitrieva. 1988. Kariologicheskaja kharakteristika predstavitelej flory sosudistykh rastenij Berezinskogo biosfernogo zapovednika. Zapov. Belorussii Issl. 12: 3–8.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Krasnikov, A. A. & D. N. Schaulo. 1990. Chromosome numbers in representatives of some families of vascular plants in the flora of the Novosibirsk region. II. Bot. Žhurn. (Moscow & Leningrad) 75: 118–120.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Queirós, M. 1991. Números cromossómicos de algumas especies Portuguesas de Hypericum. Revista Biol. Univ. Oviedo 9: 51–57.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Kiehn, M., E. Vitek, E. Hellmayr, J. Walter, J. Tschenett, C. Justin & M. Mann. 1991. Beiträge zur Flora von Österreich: Chromosomenzählungen. Verh. Zool.-Bot. Ges. Wien 128: 19–39.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Hollingsworth, P. M., R. J. Gornall & J. P. Bailey. 1992. Contribution to a cytological catalogue of the British and Irish flora, 2. Watsonia 19: 134–137.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Murín, A. 1997. Karyotaxonomy of some medicinal and aromatic plants. Thaiszia 7: 75–88.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Probatova, N. S., E. G. Rudyka & A. P. Sokolovskaya. 1996. Chromosome numbers in synanthropic plants from the Russian Far East. Bot. Žhurn. (Moscow & Leningrad) 81(5): 98–101.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Dobea, C., B. Hahn & W. Morawetz. 1997. Chromosomenzahlen zur Gefässpflanzen-Flora Österreichs. Linzer Biol. Beitr. 29(1): 5–43.
  Hypericum perforatum L. Hypericum perforatum L.   18, 32 IPCN online Albers, F. & W. Pröbsting. 1998. In R. Wisskirchen & H. Haeupler, Standardliste der Farn- und Blütenpflanzen Deutschlands. Bundesamt für Naturschutz & Verlag Eugen Ulmer, Stuttgart.
  Hypericum perforatum L. Hypericum perforatum L.   32+0-2B IPCN online Lövkvist, B. & U. M. Hultgård. 1999. Chromosome numbers in south Swedish vascular plants. Opera Bot. 137: 1–42.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Pogan, E. 1980. Further studies in chromosome numbers of Polish Angiosperms. Acta Biol. Cracov., Ser. Bot. 22: 129–153.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Van Loon, J. C. & B. Kieft. 1980. In Chromosome number reports LXVIII. Taxon 29: 538–542.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Van Loon, J. C. & H. C. M. Snelders. 1979. In IOPB chromosome number reports LXV. Taxon 28: 632–634.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online LOON VAN, J. C. & H. D. JONG. 1978. In IOPB chromosome number reports LIX. Taxon 27: 53–61.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Skalinska, M. 1974. Further studies in chromosome numbers of Polish angiosperms. X. Acta Biol. Cracov., Ser. Bot. 17: 133–164.
  Hypericum perforatum L. Hypericum perforatum L.   16, 32, 48 IPCN online Ciccarelli, D., F. Garbari & P. Mártonfi. 2001. Mediterranean chromosome number reports 11 (1232). Fl. Medit. 11: 440–443.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN online Arda, S. & G. OLGUN. 1990. Edirne çevresindeki Hypericum L. (Guttiferae) türleri üzerinde morfolojik, anatomik ve karyolojik aras|7tirmalar. X. Ulusal Biyoloji Kongresi (18--20 Temmuz 1990, Erzurum) Botanik Bildirileri 2: 21--31.
  Hypericum perforatum L. Hypericum perforatum L.   32, 48 IPCN online Dmitrieva, S. A. 2000. Karyology of the flora of Byelarus. Page 42 in Thesis of the Diss. Doc. Biol. Sci. Minsk.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN72 HOLUB, J., J. MESICEK, & v. JAVURKOVA. 1972. Annotated chromo- some counts of Czechoslovak plants (31-60). (Materials for a Flora CSSR-3) Folia Geob. Phyto. (Czech. l 7: 167-202.
  Hypericum perforatum L. Hypericum perforatum L. 16   IPCN67-71 ROBSON, N.K.B., & P. ADAMS. 1968. Chromosome numbers in Hypericum and related genera. Brittonia 30: 95-106.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN67-71 GADELLA, TH. W.J., & E. KLIPHUIS. 1970. Cytotaxonomic investigations in some angiosperms collected in the Valley of Aosta and in the National Park "Gran Paradiso". Carylogia 23: 363-379.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN67-71 GADELLA, Th. W. J., & E. KLIPHUIS. 1966.' Chromosome numbers of flowering plants in the Netherlands II. Proc. Roy. Neth. Acad. Sci. Ser. C. 69: 541-556.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN75-78 Skalinska et al. 1974
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN75-78 Loon & Jong 1978
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN73-74 REYNAUD, C. 1973. Contribution a l'etude cytotaxinomique du genre Hypericum L. en Turquie. I Bull. Soc. Bot. France 120: 201-216. i
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN73-74 LOEVE, A., & E. KJELLQVIST. 1974. Cytotaxonomy of Spanish plants. IV. Dicotyledons: Caesalpiniaceae- Asteraceae. Lagascalia 4: 153-211.
  Hypericum perforatum L. Hypericum perforatum L.   32 IPCN73-74 NILSSON, Q., & P. LASSEN. 1971. Chromosome numbers of vascular pla from Austria, Mallorca and Yugoslav1a. Bot. Not1ser 124: 270-276. I
!   Hypericum perforatum L. Hypericum perforatum L.   32,48 eFlora  
!   Hypericum perforatum L. Hypericum perforatum L.   32 Darlington, 1955 Noack 1939
!   Hypericum perforatum L. Hypericum perforatum L.   32 C-values database Temsch EM, Temsch W, Ehrendorfer-Schratt L, Greilhuber J. 2010. Heavy metal pollution, selection, and genome size: The species of the Žerjav study revisited with flow cytometry. Journal of Botany 2010: Article ID 596542, 11 pages.
!   Hypericum perforatum L. Hypericum perforatum L.   2n = 32 Austria_checklist Kiehn, M., Vitek, E., Hellmayr, E. et al. 1991. Beitr?ge zur Flora von ?sterreich: Chromosomenz?hlungen. Verh.Zool.-Bot.Ges.?sterreich 128, 19-39.
!   Hypericum perforatum L. Hypericum perforatum L.   2n = 32 Austria_checklist Dobe?, Ch., Hahn, B., & Morawetz, W. 1997. Chromosomenzahlen zur Gef??pflanzen-Flora ?sterreichs. Linzer Biol.Beitr. 29[1], 5-43.
  Hypericum perforatum L. Hypericum perforatum L.   32 Cave1957 Mulligan
  Hypericum perforatum L. Hypericum perforatum L. 18   CromoCat 2015 Castroviejo & al. (2003). Flora Iberica (vol. I-VIII, X, XIV) Publicaciones del CSIC Madrid
  Hypericum perforatum L. Hypericum perforatum L. 18   CromoCat 2015 Reynaud, C. (1986). Étude cytotaxonomique des Millepertuis du bassin Méditerranéen et des Iles Canaries. Bull. Soc. Bot. France Lett. Bot, 133: 167-177.
  Hypericum perforatum L. Hypericum perforatum L. 17   CromoCat 2015 Castroviejo & al. (2003). Flora Iberica (vol. I-VIII, X, XIV) Publicaciones del CSIC Madrid
  Hypericum perforatum L. Hypericum perforatum L. 17   CromoCat 2015 Reynaud, C. (1986). Étude cytotaxonomique des Millepertuis du bassin Méditerranéen et des Iles Canaries. Bull. Soc. Bot. France Lett. Bot, 133: 167-177.
  Hypericum perforatum L. Hypericum perforatum L. 16   CromoCat 2015 Mulligan, G. A. (1984). Chromosome numbers of some plants native and naturalized in Canada. Naturaliste Canad. 111: 447-449.
  Hypericum perforatum L. Hypericum perforatum L. 16   CromoCat 2015 Pirkola, A. (1966). Alustavia tutkimuksia Hypericum perforatum in kromosomisuh teista ja PMC-meioosista. Tesis Helsinki
  Hypericum perforatum L. Hypericum perforatum L. 16   CromoCat 2015 Reynaud, C. (1986). Étude cytotaxonomique des Millepertuis du bassin Méditerranéen et des Iles Canaries. Bull. Soc. Bot. France Lett. Bot, 133: 167-177.
  Hypericum perforatum L. Hypericum perforatum L. 16   CromoCat 2015 Robson, N. K. B. & P. Adams. (1968). Chromosome numbers in Hypericum and related genera. Brittonia 30: 95-106.
  Hypericum perforatum L. Hypericum perforatum L. 16 0 CromoCat 2015 Jeelani, R. M., Kumari, S. & Gupta, R. C. (2011). IAPT/IOPB Chromosome Data 12 Taxon 60:1788-1789
  Hypericum perforatum L. Hypericum perforatum L. 0 16 CromoCat 2015 Kaur, D. & Singhal, V. K (2012). IAPT/IOPB Chromosome Data 13 Taxon 61:894-895
  Hypericum perforatum L. Hypericum perforatum L. 0 32 CromoCat 2015 Probatova, N. S., E. G. Rudyka & A. P. Sokolovskaya (1996). Chromosome numbers in synanthropic plants fromt he Russian Far East. Bot. Zhurn. 81(5): 98-101
  Hypericum perforatum L. Hypericum perforatum L.   (48) CromoCat 2015 Parfenov, V. I. & S. A. Dmitrieva. (1985). Kariologicheskaja differenciacija u vidov flory Belorussii i ee rol, v formoobrazovanii. Dokl. Akad. Nauk Byelorussk. SSR. (Minsk) 29(6): 544-557.
  Hypericum perforatum L. Hypericum perforatum L.   16 CromoCat 2015 Ciccarelli, D., Garbari, F. & Mártonfi, P. (2001). Mediterranean chromosome number reports-11. Fl. Medit. 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   16 CromoCat 2015 Papanicolaou, K. (1984). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXXXII]. Taxon 33(1): 130-131.
  Hypericum perforatum L. Hypericum perforatum L.   18 CromoCat 2015 Albers, F. & Pröbsting, W. (1998). In R. Wisskirchen & H. Haeupler, Standardliste der Farn- und Blütenpflanzen Deutschlands. Bundesamt für Naturschutz & Verlag Eugen Ulmer, Stuttgart
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Albers, F. & Pröbsting, W. (1998). In R. Wisskirchen & H. Haeupler, Standardliste der Farn- und Blütenpflanzen Deutschlands. Bundesamt für Naturschutz & Verlag Eugen Ulmer, Stuttgart
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Arohonka, T. (1982). Kromosomilukumäärityksiä Nauvon Seilin saaren putkilokasveista. (Chromosome counts of vascular plants of the island Seiliin Nauvo, SW Finland) Turun Yliopiston Biologian Laitoksen Julkaisuja 3: 1-12.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Ciccarelli, D., Garbari, F. & Mártonfi, P. (2001). Mediterranean chromosome number reports-11. Fl. Medit. 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Dobeš, C., Hahn, B. & Morawetz, W. (1997). Chromosomenzahlen zur Gefässpflanzen-Flora Österreichs. Linzer Biol. Beitr. 29(1): 5-43.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Gadella, Th. W. J. & Kliphuis, E. (1966). Chromosome numbers of flowering plants in the Netherlands II. Proc. Kon. Ned. Akad. Wetensch. Ser. C 69(5): 541-556.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Gadella, Th. W. J. & Kliphuis, E. (1970b). Cytotaxonomic investigations in some Angiosperms collected in the valley of Aosta and in the National Park "Gran Paradisio". Caryologia 23: 363-379.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Garajová, S. (1959). Príspevok k cytologickym pomerom flóry okolia Bratislava Tesis Bratislava
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Hill, L. M. (1989). IOPB Chromosome Data 1 (ed. C.A. Stace). Int. Organ. Pl. Biosyst. Newslett. 13: 17-19.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Hollingsworth, P. M., Gornall, R. J. & Bailey, J. P. (1992). Contribution to a cytological catalogue of the British and Irish flora, 2. Watsonia 19: 134-137.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Kapoor, B. M. (1982). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXXIV]. Taxon 31(1): 119-120.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Kiehn, M., Vitek, E., Hellmayr, E., Walter, J., Tschenett, J., Justin, C. & Mann, M. (1991). Beiträge zur Flora von Österreich: Chromosomenzählungen. Verhandlungen der Zoologisch-botanischen Gesellschaft in Wien 128: 19-39
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Loon van, J. C. & de Jong, H. (1978). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LIX]. Taxon 27(1): 56-61.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Loon van, J. C. & Kieft, B. (1980a). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXVIII]. Taxon 29(4): 538-542. si
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Loon van, J. C. & Snelders, H. M. (1979). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXV]. Taxon 28(5/6): 627-637.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Löve, A. & Kjellqvist, E. (1974b). Cytotaxonomy of Spanish plants. IV.-Dicotyledons: Caesalpinaceae-Asteraceae. Lagascalia 4(2): 153-211.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Löve, A. & Löve, D. (1982c). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXXVI]. Taxon 31(3): 583-587.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Nilsson, Ö. & P. Lassen. (1971). Chromosome numbers of vascular plants from Austria, Mallorca and Yugoslavia. Bot. Not. 124(2): 270-276.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Parfenov, V. I. & S. A. Dmitrieva. (1985). Kariologicheskaja differenciacija u vidov flory Belorussii i ee rol, v formoobrazovanii. Dokl. Akad. Nauk Byelorussk. SSR. (Minsk) 29(6): 544-557.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Pogan, E. (1980). Further studies in chromosome numbers of Polish Angiosperms. Part XIV. Acta Biol. Cracov., Ser. Bot. 22: 129-153.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Probatova, N.S., Seledets, V.P., Rudyka, E.G., Gnutikov, A.A., Kozhevnikova, Z.V. & Barkalov V.Y. (2009). IAPT/IOPB Chromosome Data 8 Taxon 58 (4): 1284-1288
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Queirós, M. (1991c). Numeros cromossomicos de algumas especies portuguesas de Hypericum L. Rev. Biol. Univ. Oviedo 7: 51-57.
  Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Reynaud, C. (1973). Contribution à l'étude cytotaxinomique du genre Hypericum L. en Turquie. I. Bull. Soc. Bot. France 120: 201-215.
  Hypericum perforatum L. Hypericum perforatum L.   32+0-2B CromoCat 2015 Lövkvist, B. & Hultgård, U.-M. (1999). Chromosome numbers in south Swedish vascular plants Opera botanica 137: 1-42
  Hypericum perforatum L. Hypericum perforatum L.   36 CromoCat 2015 Castroviejo & al. (2003). Flora Iberica (vol. I-VIII, X, XIV) Publicaciones del CSIC Madrid
  Hypericum perforatum L. Hypericum perforatum L.   48 CromoCat 2015 Ciccarelli, D., Garbari, F. & Mártonfi, P. (2001). Mediterranean chromosome number reports-11. Fl. Medit. 11: 440-443.
  Hypericum perforatum L. Hypericum perforatum L.   48 CromoCat 2015 Reynaud, C. (1986). Étude cytotaxonomique des Millepertuis du bassin Méditerranéen et des Iles Canaries. Bull. Soc. Bot. France Lett. Bot, 133: 167-177.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Holub, J., Mesícek, J. & Javürková, V. (1972). Annotated chromosome counts of Czechoslovak plants (31-60). Folia Geobot. Phytotax. (Bohem.) 7: 167-202.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Hoar, C. S. & Haertl, E. J. (1932). Meiosis in the genus Hypericum. Bot. Gaz. 93: 197-204.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Mulligan, G. A. (1957). Chromosome numbers of Canadian weeds. I. Canad. J. Bot. 35: 779-789.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Nielsen, N. (1924). Chromosome numbers in the genus Hypericum. Hereditas 5: 378-382.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Noack, K. L. (1939). Uber Hypericum-Kreuzungen. VI. Fortpflanzungsverhältnisse und Bastarde von Hypericum perfoliatum L. Z. Vererb. 76: 569-602.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Robson, N. K. B. (1957). Hypericum maculatum Crantz. Proc. Bot. Soc. Brit. Isles 2: 237-238.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Robson, N. K. B. (1958). Hypericum maculatum in Britain and Europe. Proc. Bot. Soc. Brit. Isles 3: 99-100.
!   Hypericum perforatum L. Hypericum perforatum L.   32 CromoCat 2015 Winge, Ö. (1925). Contribution to the knowledge of chromosome numbers in plants Cellule 35: 305-324.
!   Hypericum perforatum L. Hypericum perforatum L.   48 CromoCat 2015 Noack, K. L. (1939). Uber Hypericum-Kreuzungen. VI. Fortpflanzungsverhältnisse und Bastarde von Hypericum perfoliatum L. Z. Vererb. 76: 569-602.
  Hypericum perforatum L. Hypericum perforatum L.   32 IAPT/IOPB IAPT/IOPB Chromosome Data 23
!   Hypericum perforatum Linn. Hypericum perforatum L.   32 Kumar, 1987 Nielsen, N. 1924 ; Winge, O. 1925 ; Hoar, C.S. & Haertl, E.J. 1932; Roh- weder, H; 1937 ; Noack, K.L. 1939 ; Gustafsson, A. 1947a; Mulligan, G.A. 1957; Robson, N.K.B. 1957, 1958; Garajova, S. 1959 ; Hedberg, I. & Hedberg, O. 1964; Gadella, T.W.J. & Kliphuis, E. 1966, 1970a; Robson, N.K.B. & Adams, P. 1968; Holub, J. et a/. 1972 ; Reynaud, c., 1973 ; Tomkins, D.J. & Grant, W.F. 1978 ; Van Loon, J. Chr. & de Jong, H. 1978 ; Van Loon, J. Chr. & Snelders, H.C.M. 1979 ; Van Loon, J. Chr. & Kieft, B. 1980
!   Hypericum perforatum Linn. Hypericum perforatum L.   32, 36 Kumar, 1987 Heiser, C.B. & Whitaker, T.W. 1948
  Hypericum perforatum var. angustifolium DC. Hypericum perforatum subsp. veronense (Schrank) H. Lindb.   16 IPCN online Strid, A. & R. Franzen. 1981. In Chromosome number reports LXXIII. Taxon 30: 829–842.