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| Diastema calcicola J. L. Clark and Moonlight, in Clark et Moonlight, 2025. |
Abstract
Recent field expeditions in southern Ecuador and herbarium research resulted in the discovery of a new species of Diastema (Gesneriaceae). Diastema calcicola J. L. Clark and Moonlight, is described from limestone outcrops in northern Peru and the Cordillera del Cóndor in southern Ecuador. The new species is a lithophytic herb with unbranched shoots and an erect racemose inflorescence. Based on IUCN guidelines, a preliminary conservation assessment as ‘Vulnerable' (VU) is provided for D. calcicola.
Keywords: Cordillera del Cóndor, Diastema, Ecuador, Gesneriaceae, Peru, taxonomy
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| Field images of Diastema calcicola sp. nov. (Gesneriaceae). (A) Front view of mature fruit, (B) dorsolateral view of mature fruit, (C) racemose inflorescence, (D) lateral view of mature flower, (E) front view of corolla, (F) habit. (A) from J. L. Clark 10810; (B) from J. L. Clark 15080; (C)-(F) from J. L. Clark 16242. Photos by J. L. Clark. |
Diastema calcicola J. L. Clark and Moonlight,
John L. Clark and Peter W. Moonlight. 2025. Diastema calcicola (Gesneriaceae), A New lithophytic Herb from southern Ecuador and northern Peru. Nordic Journal of Botany. DOI: doi.org/10.1111/njb.04701 [26 March 2025]
