TABLE 2 - uploaded by Salvador Arias
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Morphological comparison of Deamia montalvoae, and other species of Deamia and Selenicereus grandiflorus.
Source publication
Deamia montalvoae sp. nov. (Cactaceae) from the Mesoamerican region (El Salvador, Guatemala, and Mexico) is described and illustrated based on morphological and molecular evidences. The new species is morphologically characterized by stems up to 2 cm in diameter, 7−8-ribbed, flowers (23−)27−30 cm long, with pericarpel covered by bristles and tricho...
Contexts in source publication
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... remaining trees were used to build the majority consensus tree at 50%. (Table 2), wax deposits on stems ( Figure 2B, D), flower form, bristles and hairs, and the fruit form (Table 2), differs between them. Several characters of the stem are shared exclusively between D. montalvoae and D. chontalensis, such as the pendent terminal stems, stem diameter, height of the ribs and size of the spines. ...
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... remaining trees were used to build the majority consensus tree at 50%. (Table 2), wax deposits on stems ( Figure 2B, D), flower form, bristles and hairs, and the fruit form (Table 2), differs between them. Several characters of the stem are shared exclusively between D. montalvoae and D. chontalensis, such as the pendent terminal stems, stem diameter, height of the ribs and size of the spines. ...
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... characters of the stem are shared exclusively between D. montalvoae and D. chontalensis, such as the pendent terminal stems, stem diameter, height of the ribs and size of the spines. Therefore, we consider it possible for sterile specimens to cause confusion and mistaken identification with D. chontalensis (see e.g., Véliz 2008Véliz , Cerén et al. 2015) and Selenicereus grandiflorus (e.g., Ishiki-Ishihara et al. 2013; Table 2). Other evaluated characters can help to identify the species, such as number of ribs, flower size and position of the stigmas according to the anthers, the size of the fruit and the presence of bristles and hairs, as well as the size, color and microrelief of the seed (Table 2). ...
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... we consider it possible for sterile specimens to cause confusion and mistaken identification with D. chontalensis (see e.g., Véliz 2008Véliz , Cerén et al. 2015) and Selenicereus grandiflorus (e.g., Ishiki-Ishihara et al. 2013; Table 2). Other evaluated characters can help to identify the species, such as number of ribs, flower size and position of the stigmas according to the anthers, the size of the fruit and the presence of bristles and hairs, as well as the size, color and microrelief of the seed (Table 2). The strict consensus tree obtained from the MP and BI tree supports the relationship of the two terminals of Deamia montalvoae with D. chontalensis (78% BS / 1.0 PP). ...
Citations
... Por otro lado, en algunos casos las especies no están bien representadas en estas colecciones. Por ejemplo, Cerén et al. (2018) PORTAL DE LA CIENCIA publicaron una nueva especie distribuida en Mesoamérica (Deamia montalvoae sp. nov.). ...
Se documentó la distribución de la familia Cactaceae en Honduras. Un archivo con 285 registros bibliográficos y ejemplares de herbario fue generado, el cual permitió reconocer 40 especies de cactáceas (incluyendo taxones infraespecíficos) distribuidas en 17 de los 18 departamentos de Honduras. El género Opuntia es el más diverso con 8 especies y la especie con mayor número de recolectas en el territorio hondureño es Rhipsalis baccifera. El área con mayor presencia de recolectas se ubica en los valles de la zona central del país entre los departamentos de Comayagua, Francisco Morazán y El Paraíso. Este análisis expone la importancia de la información brindada por las colecciones biológicas para realizar estudios sobre distribución de especies. Sin embargo, es necesario sustentar este trabajo con estudios de campo para evaluar la situación actual de las poblaciones y evidenciar otros puntos de distribución, ya que los hábitats de preferencia de las cactáceas en Honduras son muy amenazados por actividades agrícolas y el desarrollo urbanístico.
... The genus Deamia Britton & Rose (1920: 212), having recently been reinstated (Korotkova et al. 2017) is distributed in the Mesoamerican region and adjacent areas (slightly further north in Mexico). It is characterized by its scandent or epiphytic and often pendent habit, with determinate growth, deposition of a hard and brittle cuticular wax on stems, spines (some finer, hairlike-trichome spines-and more sinuous or flexible than others) on flowers, red to pale red fruits with white pulp (Korotkova et al. 2017, Cerén et al. 2018. The genus includes three species; Deamia chontalensis (Alexander 1950: 132) Doweld [2002Doweld [ ('2001: 41], D. montalvoae Cerén et al. (2018: 253), and D. testudo (Karw. ...
... Herbarium collections of five specimens of the new species preserved at MO and photos of live plants were examined. Observations and measurements of vegetative and available reproductive structures were made in order to characterize the species and compare it with others recently described in the genus (See Cerén et al. 2018). The distribution map was generated on Tropicos database (https://www.tropicos.org/home) ...
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.
The genus Peniocereus contains distinctive cacti with slender stems and thickened roots. The phylogenetic relationship of Peniocereus to other members of the subtribe Pachycereinae is unresolved, and a sister group for the genus has not been suggested in previous molecular phylogenies. Therefore, this study aims to corroborate the monophyly of Peniocereus, to determine the relationships within the genus, to clarify their relationship with Nyctocereus, and to reconstruct the ancestral states for eight morphological characters and the areas of distribution. Five chloroplast markers (rpl16, petL-psbE, psbA-trnH, trnL-trnF, and rpl32-trnL) and a broad outgroup represented by all genera of the subtribes Pachycereinae and Echinocereinae were used in phylogenetic analyses. The results strongly supported the monophyly of Peniocereus, which comprises P. greggii, P. johnstonii, P. lazaro-cardenasii, P. marianus, P. striatus, P. viperinus, and P. zopilotensis. The genus was sister to the Pachycereus group, which comprises Carnegiea, Lophocereus, Marshallocereus, Nyctocereus, and Pachycereus (including Backebergia and Pterocereus). The scandent branches, slender stems, and papillose epidermis are ancestral characters to Peniocereus. A complex region including the Pacific Lowlands, the Balsas Basin, and the Sonoran Desert was inferred as the ancestral area for the genus. This work provides the most comprehensive phylogeny of the subtribe Pachycereinae.
