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| Deamia funis Hammel & S. Arias, in Hammel & Arias, 2022. |
Abstract
Deamia funis sp. nov. (Cactaceae) from Nicaragua, in the Mesoamerican region, is described and illustrated based on morphological data. The new species is characterized by its often long, dangling (ropey), and relatively narrow, multiribbed stems with relatively small flowers like those of D. chontalensis, but with the stigma exerted among or slightly beyond the anthers as occurs in D. montalvoae and D. testudo.
Keywords: brevistyly, floral morphology, taxonomy
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| Deamia funis, reproductive characters (A–D from Stevens & Montiel 39242, E from Stevens & Calero 44070). A. Side-view of flower on specimen. B. Side-view of flower in life. C. Front-view of flower in life (arrow at stigma). D. Close-up of base of flower in life. E. Submature fruit, in life. Photos: A, Hammel; B–D, Montiel; E, Chamorro. |
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| Deamia funis, vegetative characters. A–C. Habitat and habit (Stevens & Montiel 33938). D. Close-up of stem showing cracks in epidermal wax (Stevens & Montiel 39242). Photos: all Montiel. |
Deamia funis Hammel & S. Arias sp. nov.
Diagnosis:— In its flowers Deamia funis is outwardly similar to D. chontalensis, but has stamens (1.5–3 vs. 0.4–0.7 cm long) and styles (6–8 vs. 2–2.2 cm long) much longer, and with the stigma exerted among or slightly beyond the anthers (vs. the brevistylous flowers of the latter), furthermore, its stems are less than half the diameter of those of the latter, and with more ribs; the stems are similar to those of D. montalvoae, but the flowers are smaller, less than 1/2 (mostly 1/3) as long as in that species.
Etymology:— The epithet refers to the long, dangling, rope-like stems common in this species when found growing on horizontal branches of trees.
Barry Hammel and Salvador Arias. 2022. A New Species of Deamia (Cactaceae) from Nicaragua. Phytotaxa. 576(2); 220-226. DOI: 10.11646/phytotaxa.576.2.8
Resumen: Deamia funis sp. nov. (Cactaceae) de Nicaragua, en la región de Mesoamérica, se describe con base en datos morfológicos y se ilustra. La especie nueva se caracteriza por sus tallos a menudo largos y péndulos (como mecate), relativamente angostos y multicostillados, con las flores relativamente pequeñas parecidas a las de D. chontalensis, pero con el estigma exerto entre o algo más allá de las anteras como ocurre en D. montalvoae y D. testudo.
