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Puccinia sessilis
	Puccinia sessilis aecia on leaf of Arum maculatum
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Pucciniomycetes
Order:	Pucciniales
Family:	Pucciniaceae
Genus:	Puccinia
Species:	P. sessilis
Binomial name
	Puccinia sessilis; J.Schröt. (1870)
Synonyms
	Aecidium allii Grev., Fl. Edin.: 447 (1824) ; Aecidium ari Desm., Catal. des plantes omis.: 26 (1823) ; Aecidium ari Berk., in Smith, Engl. Fl., Fungi (Edn 2) (London) 5(2): 369 (1836) ; Aecidium convallariae Schumach., Enum. pl. (Kjbenhavn) 2: 224 (1803) ; Aecidium convallariae Link, Mag. Gesell. naturf. Freunde, Berlin 8: 29 (1816) ; Aecidium convallariae Desm. [as 'convalariae'], Catal. des plantes omis.: 26 (1823) ; Aecidium orchidearum Desm., Catal. des plantes omis.: 26 (1823) ; Dicaeoma phalaridis (Plowr.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 470 (1898) ; Pleomeris sessilis Syd., Annls mycol. 19(3-4): 171 (1921) ; Puccinia allii-phalaridis Kleb., Jb. wiss. Bot. 34: 399 (1899) ; Puccinia ari-phalaridis Kleb., Jb. wiss. Bot. 34: 399 (1899) ; Puccinia digraphidis Soppitt, J. Bot., Lond. 28: 215 (1890) ; Puccinia festucina Syd. & P. Syd., Annls mycol. 10(2): 217 (1912) ; Puccinia linearis Roberge, Ann. Sci. Nat. 4: 125 (1855) ; Puccinia orchidearum-phalaridis Kleb., Z. PflKrankh. PflSchutz 7: 33 (1897) ; Puccinia paridis Plowr., J. Linn. Soc., Bot. 30: 43 (1895) ; Puccinia paridis-digraphidis Plowr. ex Kleb., Z. PflKrankh. 6: 261 (1896) ; Puccinia phalaridis Plowr., J. Linn. Soc., Bot. 24: 88 (1888) ; Puccinia sessilis W.G. Schneid., Hedwigia 10(1): 10 (1871) ; Puccinia winteriana Magnus, Hedwigia 33: 78 (1894) ; Trichobasis ari (Desm.) Lév., in Orbigny, Dict. Univ. Hist. Nat. 12: 785 (1849) ;

Puccinia sessilis is a fungal species and plant pathogen, which is also known as arum rust or ramsons rust.^[3] It commonly infects Arum maculatum and Allium ursinum causing yellow to orange circular patches on leaves. On the underside of the leaves, it produces raised orange aecia commonly covered in spores. It is common in Eurasia in the spring.

It was originally found on the leaves of Iris versicolor in New York, USA.^[2] Other plant species affected by this rust include Convallaria majalis, Dactylorhiza fuchsii, Dactylorhiza incarnata, Dactylorhiza majalis, Gymnadenia conopsea, Neottia ovata, Paris quadrifolia and Phalaris arundinacea.^[4]

A specialised form, Puccinia sessilis f.sp. narcissi-orchidacearum Boerema & Kesteren (now called Aecidium narcissi) is a cause of rust in daffodils (Narcissus) and also on various wild Orchidaceae species.^[5]

References

^ J. Schröt., Abh. Schles. Ges. Vaterl. Kult., Abth. Naturw. Med. 48: 19 (1870)
^ ^a ^b "Species Fungorum - GSD Species". www.speciesfungorum.org. Retrieved 21 August 2023.
^ Bio-images Puccinia sessilis Archived 2012-03-20 at the Wayback Machine
^ Ecological Fora of the British Isles - Puccinia sessilis
^ Boerema, G. H.; Hamers, Maria E. C. (May 1989). "Check-list for scientific names of common parasitic fungi. Series 3b: Fungi on bulbs: Amaryllidaceae and Iridaceae". Netherlands Journal of Plant Pathology. 95 (S3): 1–29. doi:10.1007/BF01981520. S2CID 9422139.

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[1] J. Schröt., Abh. Schles. Ges. Vaterl. Kult., Abth. Naturw. Med. 48: 19 (1870)

[Fungorum-2] "Species Fungorum - GSD Species". www.speciesfungorum.org. Retrieved 21 August 2023.

[3] Bio-images Puccinia sessilis Archived 2012-03-20 at the Wayback Machine

[4] Ecological Fora of the British Isles - Puccinia sessilis

[5] Boerema, G. H.; Hamers, Maria E. C. (May 1989). "Check-list for scientific names of common parasitic fungi. Series 3b: Fungi on bulbs: Amaryllidaceae and Iridaceae". Netherlands Journal of Plant Pathology. 95 (S3): 1–29. doi:10.1007/BF01981520. S2CID 9422139.

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Puccinia sessilis

See also

References