Ceratozamia, Brongniart (1846: 7 - 8), Brongniart, 1846

Vovides, Andrew P., Pérez-Farrera, Miguel Angel, Salinasrodríguez, María Magdalena, Galicia, Sonia, Díaz-Jiménez, Pedro, Calonje, Michael & Gutiérrez-Ortega, José Said, 2022, Morphological and anatomical analyses clarify the species definition of Ceratozamia latifolia Miq. (Zamiaceae) and lead to the description of a new species: Ceratozamia reesii, Phytotaxa 575 (3), pp. 224-252 : 242

publication ID	https://doi.org/10.11646/phytotaxa.575.3.2
DOI	https://doi.org/10.5281/zenodo.7435037
persistent identifier	https://treatment.plazi.org/id/2E5EF509-635B-FFD1-B7BF-FC02FA19F94D
treatment provided by	Plazi (2022-12-13 07:05:24, last updated 2024-11-28 03:41:21)
scientific name	Ceratozamia
status

Treatment

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