Echinocereus ctenoides – Echinocereus monacanthus
Note: To keep the original text structure within WordPress, we have to copy the text into a grey „preformatted box“. You can scroll to the right using the right button of your keyboard or with the scroll bar at the bottom. Echinocereus ctenoides* Lemaire 1868:57 nom. nud. [Probably = Echinocereus ctenoides Engelmann ex Rumpler]. Echinocereus ctenoides (Engelmann) Engelmann ex Rumpler 1886:819. basionym: Cereus ctenoides Engelmann 1856:279. [see Engelmann 1859:31]. Type – locality: Coahuila, between Eagle Pass & Santa Rosa; Bigelow, Jan. 1853 (MO). Nomenclatural synonyms: Echinocereus dasyacanthus var. ctenoides (Engelmann) Backeberg1960:2021. Echinocereus pectinatus var. ctenoides* Weniger 1971:31 nom. inval. (no basionym given). Echinocereus pectinatus var. ctenoides (Engelmann) Weniger ex Frank 1991:135. Echinocereus pectinatus subsp. ctenoides (Engelmann) Frank 1997:136. Echinocereus spinosissimus var. ctenoides* (Engelmann) Ito 1981:237. nom. inval. (no basionym). Note: Echinocereus pectinatus var. wenigeri is considered by Frank (1997) to be a taxonomic synonym of this species. Echinocereus cucumis Werdermann 1949:3-4. Type – locality: unknown [received from Hummel in 1937 without location noted, but probably from Sonora, Mexico]. Nomenclatural synonyms: Echinocereus noctiflorus* Hort. ex Backeberg …