Zamia

Belongs within: Cycadophyta.

Zamia is a Neotropical genus of cycads in which leaflets lack a discernible midrib and sporophylls are borne in vertical rows.

<==Zamia
    |  i. s.: Z. floridana de Candolle 1868CD07
    |         Z. vazqueziiTK01
    |--Z. hymenophyllidiaNM11
    `--+--+--Z. standleyiNM11
       |  `--+--Z. paucijugaNM11
       |     `--+--+--Z. pictaNM11
       |        |  `--Z. variegataNM11
       |        `--+--Z. katzerianaNM11
       |           `--+--+--Z. furfuraceaNM11
       |              |  `--Z. lawsonianaNM11
       |              `--+--Z. loddigesiiNM11
       |                 `--Z. sparteaNM11
       `--+--+--Z. lacandonaNM11
          |  `--Z. purpureaNM11
          `--+--+--Z. angustifoliaNM11
             |  `--+--Z. pygmaeaNM11
             |     `--+--Z. integrifoliaNM11
             |        `--+--Z. portoricensisNM11
             |           `--+--Z. kickxiiNM11
             |              `--+--Z. amblyphyllidiaNM11
             |                 `--Z. pumilaNM11
             `--+--Z. elegantissimaNM11
                `--+--+--Z. acuminataNM11
                   |  `--+--Z. fairchildianaNM11
                   |     `--Z. pseudomonticolaNM11
                   `--+--Z. obliquaNM11
                      `--+--Z. chiguaNM11
                         `--+--Z. dressleriNM11
                            `--+--+--Z. lecointeiNM11
                               |  `--Z. muricataNM11
                               `--+--Z. neurophyllidiaNM11
                                  `--+--Z. skinneriNM11
                                     `--+--Z. ipetiensisNM11
                                        `--+--Z. poeppigianaNM11
                                           `--+--Chigua bernaliiNM11
                                              `--Z. manicataNM11

*Type species of generic name indicated

References

[CD07] Cantino, P. D., J. A. Doyle, S. W. Graham, W. S. Judd, R. G. Olmstead, D. E. Soltis, P. S. Soltis & M. J. Donoghue. 2007. Towards a phylogenetic nomenclature of Tracheophyta. Taxon 56 (3): E1–E44.

[NM11] Nagalingum, N. S., C. R. Marshall, T. B. Quental, H. S. Rai, D. P. Little & S. Mathews. 2011. Recent synchronous radiation of a living fossil. Science 334: 796–799.

[TK01] Tagashira, N., & K. Kondo. 2001. Chromosome phylogeny of Zamia and Ceratozamia by means of Robertsonian changes detected by fluorescence in situ hybridization (FISH) technique of rDNA. Plant Systematics and Evolution 227: 145–155.