Cycad Names | Cycadales > Zamiaceae > Ceratozamia > Ceratozamia whitelockiana Chemnick & T.J.Greg.

Ceratozamia whitelockiana Chemnick & T.J.Greg. [WFO] [IPNI] [POWO] [MO]

First published in: Phytologia 79(1): 51-57 (1995 publ. 1996). (1996). [BHL]

Etymology: Honoring Loran M. Whitelock (1930–2014) of Los Angeles, California, eminent student and collector of cycads, for his dedication and contribution to cycad biology and awareness throughout the world. [source]

Nomenclatural Type Information
Collector and Number: J. Chemnick & T. Gregory 5
Locality: Mexico: Oaxaca, Vicinity of Metates, south of Valle Nacional , May 1995
Type Location(s): LT:FTG; ILT:SBBG
Type notes: Lectotype and isolectotype designated by Haynes (in Phytotaxa 612(2): 161. 2023) with the following notes: "In an inquiry to the herbarium curator at HNT—which was reported in the protologue to house the Chemnick & Gregory 5 holotype (Chemnick & Gregory 1995)—it was determined that the type is likely lost (S. Laymeyer[sic], pers. comm.). Because a lectotype was not assigned in the monograph (or elsewhere), it will be designated here. The first option for a lectotype (sensu Turland et al. (2018), Arts. 9.8, 9.11–9.13) is the J. Chemnick & T. Gregory 5 duplicate at XALU because (1) it was formally designated an isotype in the protologue (Chemnick & Gregory 1995), and (2) the herbarium is in Mexico. However, XALU reportedly has no record of this specimen (A. Serrano Solis, pers. comm.). Therefore, the J. Chemnick & T. Gregory 5 duplicate at FTG! (FTG76122) (Fig. 3A), which was also formally designated an isotype in the protologue (Chemnick & Gregory 1995), is herein designated the lectotype for Ceratozamia whitelockiana Chemnick & T.J.Greg., and the J. Chemnick & T. Gregory 5 duplicate at SBBG! (SBBG150093, SBBG150094, SBBG150095) (Fig. 3B), which was not mentioned in the protologue, is herein designated the isolectotype."

Distribution: Mexico (Oaxaca)

IUCN Red List Conservation Status: Endangered A2c; B1ab(i,ii,iii,v)

Location Privacy Notice: This map is provided to show a rough estimate of the distribution of this species based on georeferenced localities on the WLoC database. The points may not be comprehensive of the species distribution and may contain errors. To protect the precise locations of populations of this highly threatened plant group, coordinates displayed on this map have been denatured to 0.1 degree precision (approximately 11 km accuracy). Map zoom levels are also limited for conservation purposes.

Geographic Distribution

Legend:
Collection Events (15)
Image Gallery (3 observation records)

Mexico (Oaxaca)

Mexico (Oaxaca)

Mexico (Oaxaca)

References (5)

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Bösenberg JD. 2022. Ceratozamia whitelockiana. The IUCN Red List of Threatened Species 2022: e.T42128A69865109. WLoC DOI
Red List Assessment
Haynes JL. 2022. Etymological compendium of cycad names. Phytotaxa 550 (1) : 1-31. WLoC DOI
Etymology
Haynes JL, Whitelock LM, Schutzman B, Adams RS. 2008. A new endemic Ceratozamia from Honduras (Cycadales: Zamiaceae). Cycad Newslett. 31 (2) : 16-21. WLoC
Notes: Compared to Ceratozamia hondurensis
Vázquez-Torres M, Vovides AP. 1998. A new species of Ceratozamia (Zamiaceae) from Veracruz, Mexico. Novon 8 (1) : 87-90. WLoC DOI