Details for: Dioon edule f. angustifolium
2 different source(s) use this name:

- Hill, K. D. & Stevenson, D. W. 2004: Extract from The Cycad Pages. RBG Sydney.
- Hill, K. D. & Stevenson, D. W. 2000: Extract from The Cycad Pages. RBG Sydney.

Source: Hill, K. D. & Stevenson, D. W. 2004: Extract from The Cycad Pages. RBG Sydney. [IOPI preferred view]
Name: Dioon edule f. angustifolium (Miq.) Miq.
Nomencl. ref. Prodr. Syst. Cycad.: 10, 22 (1861)
Rank: Forma
Status: SYNONYM
Synonym of: Dioon edule var. angustifolium (Miq.) Miq.
 

Source: Hill, K. D. & Stevenson, D. W. 2000: Extract from The Cycad Pages. RBG Sydney.
Name: Dioon edule f. angustifolium (Miq.) Miq.
Nomencl. ref. Prodr. Syst. Cycad.: 10, 22
Rank: Forma
Status: SYNONYM
Synonym of: Dioon edule var. angustifolium (Miq.) Miq.
Taxon Notes: homotypic synonym
 
SourceStatusDesignation: S