Chenopodium berlandieri Moquin-Tandon (1840: 23)

Sandoval-Ortega, Manuel Higinio & Zumaya-Mendoza, Silvia, 2023, Types of some Mexican names in Amaranthaceae s. l. (Caryophyllales), Phytotaxa 597 (1), pp. 8-14 : 11

3. Chenopodium berlandieri Moquin-Tandon (1840: 23) .

Lectotype (designated here):― Circa Mexico, Sep. 1828, Berlandier 1906 (G00176930 [image!], image available at http://www.ville-ge.ch/ musinfo/bd/cjb/chg/adetail.php?id=178855&base=img&lang=en); isolectotypes: P00606417 [image!], image available at http:// coldb.mnhn.fr/catalognumber/mnhn/p/p00606417, P00606418 [image!], image available at http://coldb.mnhn.fr/catalognumber/ mnhn/p/p00606418, G00206050 [image!] image available at https://plants.jstor.org/stable/10.5555/al.ap.specimen.g00206050, GH00037169 [image!] image available at https://kiki.huh.harvard.edu/databases/specimen_search.php?mode=details&id=12807, NY324308 [image!] image available at https://sweetgum.nybg.org/science/vh/specimen-details/?irn=290056)

Note on the type of Chenopodium berlandieri :―There are at least six duplicates of this collection deposited in four different herbaria, i.e. at P, G, GH, and NY-.All this material correspond to syntypes (Art. 9.6 of ICN). In fact, Moquin-Tandon (1840: 23) reported “v.s. [vidi sicco] in herb. Moricand” and Moricand’s herbarium is currently deposited at G, with duplicate elsewhere (see HUH-Index of Botanists 2023). The specimen G00176930 is here designated as lectotype since it is in better condition and shows flowers and fruits (which features are important in the identification of Chenopodium taxa). There is another specimen of C. berlandieri collected by Berlandier with the number 1906 deposited in G (barcode G00206050), probably a fragment from G00176930 or other duplicate. P, GH, and NY specimens are isolectotypes. Note that in the protologue it is reported “circa Mexico ”, but on the sintypes the locality of collection is Bejar, probably Béjar (now Bexar) Texas, not far from the Mexican border.