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| Calea roqueana & C. strigosa V.R.Bueno, Prata-Silveira & Bentes, in Bueno, Bentes, Ramos, Zavatin et Prata-Silveira, 2025. |
Abstract
Thirty five years since the last new species was placed in Calea sect. Lemmatium, three new species for this section are described here: C. riopardensis, C. roqueana, and C. strigosa. These three new species belong to the C. sickii group, which is characterized by the few-headed cymose capitulescence or capitula solitary and ray florets 5–10 per capitulum (when radiate). Calea riopardensis resembles C. repanda, but it differs by the petiole 0.6–0.7 cm long (vs. 1.3–1.5 cm), leaf base attenuate (vs. rounded), and cypselae 3.5–3.8 mm long (vs. 3.0–3.2 mm). Calea roqueana is also similar to C. repanda, but it can be distinguished by the sessile leaves (vs. petiolate leaves), peduncle 1.2–5.5 cm long (vs. 0.45–0.7 cm), and cypselae 3.8–4.6 mm long (vs. 3.0–3.2 mm). Calea strigosa is morphologically close to C. sessilifolia, but it can be individualized by being 0.4–1.0 m tall (vs. 0.1–0.25 m), base subcordate (vs. rounded), and disc floret corolla 6.3–7.1 mm long (vs. 4.3–5.8 mm). These new species are hereby described, illustrated, its conservation status and taxonomic affinities are discussed. In addition, an identification key for the C. sickii group is provided and its geographical distribution is mapped.
Campo rupestre, Compositae, Cerrado, Heliantheae s.l., Eudicots
Calea riopardensis V.R.Bueno, Prata-Silveira & Bentes, sp. nov.
Etymology:—The epithet “riopardensis” is the latinized form of the gentile of the Rio Pardo de Minas, the municipality where the species was collected.
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| Calea roqueana sp. nov. A. Flowering branch. B. Magnification of the teeth. C. Magnification of the glandular-punctate trichomes. D. Capitulum in frontal view. E. Old capitulum in frontal view. F–H. Capitulum in lateral view. I. Radiate floret. J. Disc flore. K. Cypsela. Image authorship: Danilo A. Zavatin. |
Calea roqueana V.R.Bueno, Prata-Silveira & Bentes, sp. nov.
Etymology:—The epithet “roqueana” was given in honor of Dr. Nádia Roque (1970–2024), who was a biologist with master and doctorate degrees in Botany. She was a professor at the Universidade Federal da Bahia (Federal University of Bahia—UFBA) and served as curator of the ALCB herbarium (Thiers 2025) for 11 years, in the vascular plants section. In addition to being a professor, she supervised undergraduate, master›s, and Ph.D. students at the Universidade Estadual de Feira de Santana (State University of Feira de Santana) and at UFBA, focusing on Systematics and Floristics research of Angiosperms, mainly Asteraceae. She was also a CNPq research productivity fellow and collaborated on projects with researchers from the Smithsonian Institution (United States of America), Museo de La Plata (Argentina), and Instituto de Biociências (Brazil). Nádia Roque was a prolific researcher with more than 100 articles published, three books organized or authored, 20 books chapters, and 36 new species described. As a collector, N. Roque made more than 5400 collections, and even the first collection of C. roqueana was made by her.
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| Calea strigosa sp. nov. A. Plant in the habitat. B. Capitulum magnification. Image autorship: V.S. Miranda. |
Calea strigosa V.R.Bueno, Prata-Silveira & Bentes, sp. nov.
Etymology:—The epithet “strigosa” refers to the strigose indument of the stems, abaxial leaf surface, and outer involucral phyllaries of the new species.
Vinícius R. BUENO, Marina Soares BENTES, Renato RAMOS, Danilo A.. ZAVATIN and Ananda PRATA-SILVEIRA. 2025. Three New Species of Calea (Asteraceae, Neurolaeneae) from the Sky Islands of the Espinhaço Range. Phytotaxa. 689(2); 185-203. DOI: doi.org/10.11646/phytotaxa.689.2.2 [2025-02-24]
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