Accepted name
Plants of the World Online accepts Thelocactus conothelos as a distinct species. Its synonymy includes Echinocactus conothelos, Gymnocactus conothelos and Torreycactus conothelos. These names allow material described in older literature to be located. [2-WWW]
Importance of dry-season rainfall
For T. conothelos, precipitation in the driest quarter dominated, with a permutation importance of 61.2%. Precipitation in the wettest quarter had an importance of 18.8%. Across the comparison, this species was most clearly distinguished by the importance of water in the statistically driest part of the year. [Mosco 2019, p. 6, Tables 1–2]
The model was built from 119 occurrence records and ten climatic and topographic variables. Niche breadth, estimated using the dimensionless Levins index, was 0.025. Variable importance was calculated by permuting data in the Maxent model. The results concern the regional profile of the sites. The analysis did not experimentally examine stem temperature tolerance or responses to watering. [Mosco 2019, p. 3–6, 10–12]
Related articles
Materials from the author's archive
The species also appears in Konrad Szychowski's private material archive. [Kaktologia 2009b, file p. 16] [Neciu b.d., file p. 1]
Synonyms and names in the literature
Echinocactus conothelos · Gymnocactus conothelos · Torreycactus conothelos [2-WWW]