Rhipsalis ewaldiana Barthlott & N.P. Taylor
Images | Description | Publications | Reduced Synonyms
Holotype, Bonn 8780 – material sampled, Phylogeny and evolution of the epiphytic Rhipsalideae (Cactaceae), Nadja Korotkova, Ph.D. Thesis, 2012
Commercial clone
Unknown clone
Unknown clone
Unknown clone
Unknown clone
Rhipsalis aff. ewaldiana, commonly found mislabeled in cultivation as R. agudoensis, R. goebeliana, R. aff. goebeliana, and R. micrantha.
Description
| The accepted name Rhipsalis ewaldiana Barthlott & N.P. Taylor was published in Bradleya 13: 66-67. 1995. The geographic range is Brazil (Rio de Janeiro, Parque Estadual da Serra da Tiririca, municipality of Niterói) found at elevations of 0-2960 meters with an endangered status of critically endangered. Rhipsalis ewaldiana is classified in the subgenus Phyllarthrorhipsalis. Observed growing as an epiphyte. Overall habit is pendant or semi-erect, branches are dimorphic (more than one stem shape) and mesotonic (stems form from the tips to middle of previous stems). Stems are 2 to 6 angled, margins have at times low crenations, often dentate (at times slightly scalloped, often serrated like holly), bristles are absent. Basal stems are indeterminate (seasonal growth is various lengths), 13cm-60cm x 0.1cm-0.5cm. Main stems are determinate (seasonal growth is about the same length), 1.8cm-6cm x 0.1cm-0.2cm. Flowers are rotate: patent or reflexed (wheel shaped: wide open to reflexed), 0.7cm-1.5cm x 1.4cm-2cm. Petals from 5 to 7, sepals from 1 to 4. Inner petals are white, light-yellow, light-yellow-green, light-green or pink, outer petals are white, yellow, green or pink. Stamen are white, from 29 to 51. Stigma lobes from 3 to 4. Flower ovary is cylindrical, 0.2cm x 0.15cm. Flowering position on the stem is lateral to apical and the flower orientation in relation to the stem is perpendicular. Does repeat flowering per areole. A maximum of 1 flowers were reported at a single areole. Areole position in the stems is superficial (flower ovary is visible on the surface of the stems during bud development). Trichomes or wool is absent at the areoles after flowering. Unripe fruit is green, pink, red or brown. Ripe fruit is globose or ovoid; white, pink, magenta or red, 0.7cm-0.8cm x 0.65cm. Other notable features: R. ewaldiana is easily identified by it's unique general morphology. Certain species can be more prone to producing betalains that color the stems reddish in higher light conditions, R. ewaldiana is one of them, however stem color is not a good identifying characteristic for any species. It is highly inconsistent within the species populations. There are specimens that maintain varying shades of green stems in higher light conditions. Reported fruit colors also range from white to magenta. At times with a reddish or purplish coloring around the areoles, but that is not a good identifying characteristic for any species as R. puniceodiscus, R. neves-armondii, R. grandiflora, R. floccosa, and R. baccifera subsp. mauritiana at least, also inconsistently exhibit this characteristic. Comments: Material Sampled, living collection (Kew 1996–758), in Molecular Phylogeny, Evolution, and Biogeography of South American Epiphytic Cacti1 1Molecular Phylogeny, Evolution, and Biogeography of South American Epiphytic Cacti, Alice Calvente, Daniela C. Zappi, Félix Forest, Lúcia G. Lohmann, International Journal of Plant Sciences, 172:7, 2011 Taxonomic treatment and description were derived from:
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Rhipsalis ewaldiana referenced publications
| Title | Authors | Type | Journal | Year | Volume | Issue | Pages | Publisher |
|---|---|---|---|---|---|---|---|---|
| Rhipsalis ewaldiana, Kew 1996 - 758 - Royal Botanic Gardens, Kew (2025). Royal Botanic Gardens, Kew - Herbarium Specimens. Occurrence dataset https://doi.org/10.15468/ly60bx accessed via GBIF.org on 2025-02-13. https://www.gbif.org/occurrence/912146695 | Virtual Herbarium Website | 2025 | ||||||
| Epifytische cactussen, rhipsalis.eu. Accessed on: 15 Jan. 2025 | Aat van Uijen | Website | 2025 | |||||
| Royal Botanic Gardens Kew | Plants of the World Online. Accessed on: 15 Jan. 2025 | Website | 2025 | ||||||
| The Caryophyllales Network 2015+ [continuously updated]: A global synthesis of species diversity in the angiosperm order Caryophyllales. Accessed on: 15 Jan. 2025 | Website | 2025 | ||||||
| WFO The World Flora Online. Accessed on: 15 Jan. 2025 | Website | 2025 | ||||||
| The IUCN Red List of Threatened Species. Version 2024-2. accessed on 2025-01-07 | Website | 2024 | ||||||
| Rio de Janeiro - Cactaceae of the State of Rio de Janeiro (version 1, 8/2022), fieldguides.fieldmuseum.org | Diego Rafael Gonzaga, Maria de Fátima Freitas, Alice Calvente | Website | 2022 | |||||
| Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family | Nadja Korotkova, David Aquino, Salvador Arias, Urs Eggli, Alan Franck, Carlos Gómez-Hinostrosa, Pablo C. Guerrero, Héctor M. Hernández, Andreas Kohlbecker, Matias Köhler, Katja Luther, Lucas C. Majure, Andreas Müller, Detlev Metzing, Reto Nyffeler, Daniel Sánchez, Boris Schlumpberger, Walter G. Berendsohn | Journal Article | Willdenowia | 2021 | 51 | 2 | 251 – 270 | Botanic Garden and Botanical Museum Berlin (BGBM) |
| Cactaceae in Flora do Brasil 2020. Jardim Botânico do Rio de Janeiro. Accessed on: 15 Jan. 2025 | Daniela C. Zappi, Nigel P. Taylor | Website | 2020 | |||||
| Flora do Rio de Janeiro: Cactaceae | Maria de Fátima Freitas, Alice Calvente, Diego Rafael Gonzaga | Journal Article | Rodriguésia | 2020 | 71 | |||
| Neotypification of Rhipsalis rhombea (Rhipsalideae, Cactaceae) and Its Taxonomic History | Ralf Bauer, Nadja Korotkova | Journal Article | Haseltonia | 2020 | 27 | 95-101 | Cactus and Succulent Society of America | |
| Rediscovery of Rhipsalis ewaldiana Barthlott & N.P. Taylor (Cactaceae): notes of morphology and conservation of an endemic and threatened species from the Brazilian Atlantic Forest | Diego Rafael Gonzaga, Lucas Moraes, Lucas Veronezi Feitosa De Vasconcelos, Ricardo Carneiro Da Cunha Reis | Journal Article | Phytotaxa | 2018 | 344 | 3 | 291-294 | |
| Rhipsalis, cactussen uit het tropische woud 3 | Aat van Uijen | Journal Article | Succulenta | 2018 | 97 | 4 | 163-166 | |
| Rhipsalis, cactussen uit het tropische woud 1 | Aat van Uijen | Journal Article | Succulenta | 2017 | 96 | 6 | 270-275 | |
| Empfehlenswerte Kakteen und andere Sukkulenten - Opuntia decumbens - Aloe dorotheae - Rhipsalis ewaldiana - Hoya mitrata - Cleistocactus colademononis - Huernia archeri | Silvia Ruwa | Journal Article | Kakteen und andere Sukkulenten | 2014 | 65 | 2 | ||
| A New Subgeneric Classification of Rhipsalis (Cactoideae, Cactaceae) | Alice Calvente | Journal Article | Systematic Botany | 2012 | 37 | 4 | 983 – 988 | The American Society of Plant Taxonomists |
| Phylogeny and evolution of the epiphytic Rhipsalideae (Cactaceae) | Nadja Korotkova | Ph.D. Thesis | 2012 | Rheinische Friedrich-Wilhelms-Universität Bonn | ||||
| Molecular Phylogeny, Evolution, and Biogeography of South American Epiphytic Cacti | Alice Calvente, Daniela C. Zappi, Félix Forest, Lúcia G. Lohmann | Journal Article | International Journal of Plant Sciences | 2011 | 172 | 7 | 902-914 | |
| What does it take to resolve relationship and to identify species with molecular markers? An example from the epiphytic Rhipsalideae (Cactaceae) | Nadja Korotkova, Borsch T, Dietmar Quandt, Nigel P. Taylor, Müller K, Wilhelm Barthlott | Journal Article | American Journal of Botany | 2011 | 98 | 1549-1572 | ||
| Molecular phylogeny, evolution and systematics of Rhipsalis (Cactaceae) | Alice Calvente | Ph.D. Thesis | 2010 | Instituto de Biociências da Universidade de São Paulo | ||||
| The New Cactus Lexicon: Atlas of illustrations | David Hunt, Nigel P. Taylor, Graham Charles | Book | 2006 | 104-120 | DH Books | |||
| The New Cactus Lexicon: Text | David Hunt, Nigel P. Taylor, Graham Charles | Book | 2006 | 138-139,142-143,253-257 | DH Books | |||
| Die Namen der Gattungen und Arten epiphytischer Kakteen. Teil 1. Rhipsalideae | Ralf Bauer | Journal Article | EPIG | 1996 | 8 | 2 | 47-51 | |
| Rhipsalis ewaldiana BARTHLOTT & TAYLOR | Jochen Bockemühl | Journal Article | EPIG | 1996 | 8 | 1 | 12-14 | |
| Rhipsalis hoelleri Barthlott et Taylor, eine neue Art aus Brasilien | Ralf Bauer | Journal Article | EPIG | 1996 | 8 | 2 | 43-45 | |
| Notes towards a Monograph of Rhipsalideae (Cactaceae) | Wilhelm Barthlott, Nigel P. Taylor | Journal Article | Bradleya | 1995 | 13 | 43-79 | British Cactus and Succulent Society |
Reduced Synonyms
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