⚠ Version 1.1 of The Plant List has been superseded and should no longer be used.

The new version is available at http://www.worldfloraonline.org. The new version is enhanced, using more data sources including Taxonomic Expert Networks and will be more frequently updated.

The genus Dioon is in the family Zamiaceae in the major group Gymnosperms (Conifers, cycads and allies).

Statistics are at the end of the page.

Species in Dioon

See "Status", "Confidence level", "Source" for definitions.

Name	Status	Confi­dence level	Source	Date supplied	Infra. rec.
Dioon argenteum T.J.Greg. & al.	Accepted		WCSP	2012-03-26
Dioon califanoi De Luca & Sabato	Accepted		WCSP	2012-03-26
Dioon caputoi De Luca, Sabato & Vázq.Torres	Accepted		WCSP	2012-03-26
Dioon edule Lindl.	Accepted		WCSP	2012-03-26	1
Dioon holmgrenii De Luca, Sabato & Vázq.Torres	Accepted		WCSP	2012-03-26
Dioon mejiae Standl. & L.O.Williams	Accepted		WCSP	2012-03-26
Dioon merolae De Luca, Sabato & Vázq.Torres	Accepted		WCSP	2012-03-26
Dioon pectinatum Mast.	Unresolved		TRO	2012-04-18
Dioon purpusii Rose	Accepted		WCSP	2012-03-26
Dioon rzedowskii De Luca & al.	Accepted		WCSP	2012-03-26
Dioon sonorense (De Luca, Sabato & Vázq.Torres) Chemnick, T.Greg. & Salas-Morales	Accepted		WCSP	2012-03-26
Dioon spinulosum Dyer ex Eichl.	Accepted		WCSP	2012-03-26
Dioon spinulosum Dyer	Unresolved		TRO	2012-04-18
Dioon stevensonii Nic.-Mor. & Vovides	Accepted		WCSP	2012-03-26
Dioon tellezii Rose	Unresolved		TRO	2012-04-18
Dioon tomasellii De Luca, Sabato & Vázq.Torres	Accepted		WCSP	2012-03-26

Statistics

The Plant List includes 25 scientific plant names of species rank for the genus Dioon. Of these 13 are accepted species names.

The Plant List includes a further 19 scientific plant names of infraspecific rank for the genus Dioon. We do not intend The Plant List to be complete for names of infraspecific rank. These are primarily included because names of species rank are synonyms of accepted infraspecific names.

Species names

The status of the 25 species names for the genus Dioon recorded in The Plant List, are as follows:

	Status	Total
◕	Accepted	13	52.0%
◕	Synonym	9	36.0%
◕	Unplaced	0	0%
◕	Unassessed	3	12.0%

All names

The status of the 44 names (including infraspecific names) for the genus Dioon recorded in The Plant List, are as follows:

	Status	Total
◕	Accepted	14	31.8%
◕	Synonym	27	61.4%
◕	Unplaced	0	0%
◕	Unassessed	3	6.8%

Of the species names,

• 1 are recorded as invalid

The confidence with which the status of the 25 species names recorded in The Plant List for the genus Dioon, are assigned as follows:

	Confidence level	Accepted	Synonym	Unplaced	Unassessed	Total
	High confidence	13	9	0	0	22	88.0%
	Medium confidence	0	0	0	0	0	0%
	Low confidence	0	0	0	3	3	12.0%

The source of the species name records found in The Plant List for the genus Dioon is as follows: