Ceratozamia, Brongniart (1846: 7 - 8), Brongniart, 1846
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publication ID |
https://doi.org/ 10.11646/phytotaxa.575.3.2 |
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DOI |
https://doi.org/10.5281/zenodo.7435037 |
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persistent identifier |
https://treatment.plazi.org/id/2E5EF509-635B-FFD1-B7BF-FC02FA19F94D |
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treatment provided by |
Plazi |
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scientific name |
Ceratozamia |
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Key to the species of the C. latifolia species complex View in CoL View at ENA
1a. Plants with whorled (fasciculate) leaflets.............................................................................................................................. C. hildae View in CoL
1b Plants with non-whorled leaflets.
2a. Slender, linear, lanceolate leaflets up to 1.5 cm wide.
3a. Spiral rachis ..................................................................................................................................................................... C. zaragozae View in CoL
3b Non-spiral rachis.
4a. Ribbed leaflets, unarmed petiole. ................................................................................................................................. C. kuesteriana View in CoL
4b. Flat leaflets, not ribbed, petiole with spines ........................................................................................................................ C. sabatoi View in CoL
2b. Broad leaflets, more than 1.5 cm wide.
5a. Light green or yellowish-green emerging leaves.
6a. Light green emerging leaves.
7a. Oblong leaflets .............................................................................................................................................................. C. morettii View in CoL
7b. Oblanceolate leaflets.
8a. Pinnate plants with brown female cone at maturity .......................................................................................................... C. reesii
8b. Pinnate plants with olive-green female cone at maturity...................................................................................... C. huastecorum View in CoL
6b. Yellowish-green emerging leaves.
9a. Papyraceous leaflets.................................................................................................................................................... C. delucana View in CoL
9b. Coriaceous leaflets ..................................................................................................................................................... C. brevifrons View in CoL
5b. Brown or reddish emerging leaves.
10a. Papyraceous leaflets.
11a. Unarmed petiole, rarely armed with small, short and slender spines......................................................................... C. latifolia View in CoL
11b. Armed petiole thick and long spines.
12a. Leaflets 1.3–2.1 cm wide ..................................................................................................................................... C. fuscoviridis View in CoL
12b. Leaflets 2.7–4.2 cm wide.................................................................................................................................... C. totonacorum View in CoL
10b. Coriaceous leaflets................................................................................................................................................. C. chamberlainii View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.