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. 2025 Aug 7:261:77-86.
doi: 10.3897/phytokeys.261.156555. eCollection 2025.

A new species of Ceratostema (Ericaceae) with nearly tubular leaves from the Cordillera del Cóndor, Ecuador

Marco M Jiménez  1 , Henry X Garzón-Suárez  2   3   4 , Gabriel A Iturralde  1
Affiliations

A new species of Ceratostema (Ericaceae) with nearly tubular leaves from the Cordillera del Cóndor, Ecuador

Marco M Jiménez et al. PhytoKeys. .

Abstract

A new species of Ceratostema from the Cordillera del Cóndor in Ecuador is described and illustrated. Ceratostemarevoluta is distinguished by its nearly tubular leaves with revolute margins, pulvinate petioles, reddish flowers with white base and brownish to black lobes, short, complanate pedicel with carinate bracteoles appressed to the base and calyx lobes appressed to the corolla and overlapping each other below the middle. The taxonomic similarities of the new species are discussed and information about its distribution, habitat and conservation is provided.

Keywords: Morona Santiago; Northern Andes; south-eastern Ecuador; taxonomy.

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Conflict of interest statement

The authors declare that there is no conflict of interest regarding the publication of this article.

Figures

Figure 1.
Figure 1.
Ceratostemarevoluta. A. Fertile branch, with petiole of leaf with axillary bud (B) and rachis bracts (C); D. Abaxial (left) and adaxial (right) views of leaves with transverse section of leaf (E) and expanded leaf showing venation under backlighting (F); G. Inflorescence; H. Bracts, abaxial (left) and adaxial (right) views; I. Bracteoles, adaxial (left) and abaxial (right) views; J. Flower; K. Hypanthium, calyx, pedicel and style, with longitudinal section of pedicel, hypanthium, nectariferous disc and ovary (L); M. Corolla; N. Mature fruits; O. Stamens, dorsal (P) and lateral (Q) views. Prepared by G.A. Iturralde and H.X. Garzón-Suárez from photographs of the holotype.
Figure 2.
Figure 2.
Geographic distribution of Ceratostemarevoluta. Prepared by H.X. Garzón-Suárez.
Figure 3.
Figure 3.
Species of Ceratostema with similar flowers. A.Ceratostemarevoluta; B.C.agettiorum; C.C.bracteolatum; D.C.doucettei. A, B. Photographed by H.X. Garzón-Suárez; C. By G. Harling; D. By A. Ito.
See this image and copyright information in PMC

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