Two new species of Raputia (Rutaceae: Galipeinae) from Amazonian Colombia (original) (raw)
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Novelties in Rapatea (Rapateaceae) from Colombia Ciencias Naturales
Rapatea isanae, from the upper Isana [Içana] river, Guianía Department, Colombia, is described and illustrated, and its morphological relationships with allied species are discussed. This taxon is remarkable for Rapatea in its small stature (15–30 cm tall) and leaves, and it is only the second species with white petals in a genus that otherwise has only yellow petals. It is most closely R. spruceana, with the base of the leaf blade gradually tapering from the intergrading into the petiole, and the bractlet of the spikelet and sepal shape. However, this new species differs from R. spruceana in its shorter size, sparse verrucose on the lower surface, the length of the attenuate portion of the involucral bracts, and the shape and color of the petals. It also has similarities to R. longipes and R. modesta in its ventricose sheath-leaf, inflorescence shape, and bractlets equal in length. A previously described species from Colombia is restablished (i.e., R. modesta), and one variety is elevated to the rank of species (i.e., R. paludosa var. sessiliflora to R. sessiliflora). An updated key to the all twenty five species of Rapatea, and an abstract in Kuripaco are also provided. Novedades en Rapatea (Rapateaceae) para Colombia Resumen Rapatea isanae, una nueva especie del alto río Isana, Departamento del Guianía, Colombia, es descrita, ilustrada, y sus relaciones morfológicas con las especies afines son discutidas. Esta especie es notable en el género Rapatea por el tamaño de las plantas (entre 15 y 30 cm de altura), las hojas muy pequeñas, y los pétalos blancos, siendo la segunda especie con este carácter en un género en el cual predominan los pétalos amarillos. Por la base de las hojas transformándose gradualmente en un pecíolo, la morfología de las bractéolas de las espiguillas y los sépalos, R. isanae está relacionada con R. spruceana. Por las vainas basales de las hojas ventricosas, la forma convexa de las inflorescencias y las bractéolas del mismo tamaño con R. longipes y R. modesta, respectivamente. Sin embargo, esta nueva especie difiere de R. spruceana por ser plantas muy pequeñas, el envés esparcidamente verrugoso, el largo de la porción atenuada de las brácteas involúcrales y la forma y color de los pétalos. Se restablece una especie previamente descrita para Colombia (i.e., R. modesta), y una variedad es elevada al rango de especie (i.e., R. paludosa var. sessiliflora a R. sessiliflora). Adicionalmente se presenta una clave actualizada de las 25 especies aceptadas de Rapatea y un resumen en Kuripaco. Abstract in Kuripaco. Supplementary information 1,
An Emended Description of and New Combinations in Raputia (Cuspariinae, Rutaceae)
Brittonia, 1990
Garden, Bronx, NY 10458). An emended description of and new combinations in Raputia (Cuspariinae, Rutaceae). Brittonia 42: 175-177. 1990.--A11 three species of the neotropical genus Myllanthus R. Cowan are transferred to Raputia Aublet, resulting in the following new combinations, R. maroana (R. Cowan) Kallunki, R. neblinensis (R. Cowan) Kallunki, and R. ulei (K. Krause) Kallunki. An emended generic description and a key to the four described species (including R. aromatica Aublet) are provided. Aublet (1775) established the genus Raputia based on R. aromatica Aublet, collected near Orapu, French Guiana. All other species subsequently described in this genus are best assigned to other genera. Emmerich (1978) placed most of these in three other genera, primarily in Neoraputia Emmerich. Neoraputia is characterized by alternate leaves; a gamosepalous, 3-5-toothed calyx; petals coherent at base forming a corolla with a straight tube and spreading lobes; small, semicircular, flap-like anther appendages; and capsular fruit (which may appear apocarpous after dehiscence). Sigmatanthus Huber ex Emmerich and Raputiarana Emmerich (both monotypic) have curved corollas and anthers of which the bases are sterilized above the point of attachment to the filament and of which the basal appendages are elongate.
Phytotaxa, 2018
As a result of the ongoing taxonomic revision of the tribe Sipaneeae, a new species of Dendrosipanea and Sipaneopsis from the Brazilian and Colombian Amazon are here described and illustrated; both taxa are endemic to the Brazilian white-sand areas locally called campinas and campinaranas. Their conservation status is assessed, and all specimens examined are cited. A key to the three recognized species of Dendrosipanea is included.
Two new species and a new combination in Conchocarpus (Rutaceae, Galipeeae) from eastern Brazil
Kew Bulletin, 2011
Two new species of Rutaceae, Conchocarpus hamadryadicus Pirani & Kallunki and C. minutiflorus Groppo & Pirani are described and illustrated. Both are known so far only from small remnants of forests, the former in the caatinga dominium in Bahia, the latter in moist forests near Santa Teresa, Espírito Santo, Brazil. Their main diagnostic features are delineated, and their relationships to other species of Conchocarpus are discussed. Because Rauia racemosa Nees & Mart. can no longer be recognised as a synonym of Conchocarpus fontanesianus (A. St.-Hil.) Kallunki & Pirani, a new combination, C. racemosus (Nees & Mart.) Kallunki & Pirani, is provided, with comments.
Acta Botanica Brasilica
irteen species of the genus Galianthe have been recorded for state of Rio Grande do Sul, Brazil. e species are distributed among seven biomes, one of which contains all thirteen taxa-Subtropical Seasonal Forest. Herein a new endemic species, G. riograndensis J. Florentín & E.L. Cabral, is described, illustrated and di erentiated from all other species of the genus by having 3-4 verticillate leaves and a long bi d style. In addition, the pollen grain morphology and the seed micromorphology of the new species are described and illustrated, and the conservation status assessed according to IUCN criteria. Moreover, G. chodatiana is recorded for the rst time from the state, and a lectotype for G. equisetoides is designated. Most of the species of Galianthe are described and illustrated with detailed photos of living specimens. A taxonomic key for species identi cation, as well as comments on distribution, overall phenology and habitat, are also presented. e distribution of the new species is discussed in the context of the biogeographic region of the state, and maps and a table of species by biome are also provided.
Novon, A Journal for Botanical Nomenclature, 2019
This paper reviews Hippotis Ruiz & Pav. and Schradera Vahl, two Rubiaceae genera with centers of diversity in western South America. Both are inadequately known and in need of field study. Recent authors’ circumscriptions of H. albiflora H. Karst. and H. mollis Standl. are narrowed here, and four new species of Hippotis are described: H. antioquiana C. M. Taylor from northwestern Colombia, H. ecuatoriana C. M. Taylor from central-southern Ecuador, H. elegantula C. M. Taylor & M. Calderón from the western Amazon basin in Ecuador, and H. vasqueziana C. M. Taylor from lowland northeastern Peru. Four new species of Schradera Vahl are also described here: S. cernua C. M. Taylor and S. francoae C. M. Taylor from western Colombia, S. condorica C. M. Taylor & D. A. Neill from southern Ecuador, and S. morindoides C. M. Taylor from southern Ecuador and northern Peru. Schradera condorica at least sometimes is a free-standing tree, a habit newly documented for this genus.
Molecular Phylogenetics and Evolution, 2021
Subtribe Galipeinae (tribe Galipeeae) is the most diverse group of Rutaceae (the orange family) in the Neotropics, with 27 genera and ca. 130 species. The largest genus in the subtribe is Conchocarpus, with ca. 50 species, distributed from Central America to southern Brazil, and is particularly diverse in the Brazilian Atlantic Forest. The circumscription of the genus was recently changed to accommodate the species of Almeidea. However, even with this inclusion, Conchocarpus did not appear as monophyletic because the position of C. concinnus, which appeared in a clade with the other genera of Galipeinae rather than in the clade with the other species of Conchocarpus. The objective of the present study is to investigate the phylogenetic position of four other species of Conchocarpus (hereafter called "C. gauchaudianus group") that share morphological traits and geographical distribution with C. concinnus suggesting a close phylogenetic affinity. Phylogenetic analyses were based on morphological and molecular data from nuclear regions ITS-1 and ITS-2 as well as plastid regions trnL-trnF and rps-16, and were conducted with parsimony and Bayesian inference as optimization criteria. Results showed Conchocarpus as polyphyletic with its species divided in two clades, one, herein called "the Conchocarpus sensu stricto group," includes the type species C. macrophyllus, and the other "the Conchocarpus gaudichaudianus group" includes C. concinnus. The latter group is here recognized as a new genus, Dryades, the name given by Carl Friederich von Martius (1794-1868) to the Domain of the Atlantic Forest in Brazil, inspired by the tree nymphs in Greek mythology. Floral structure and leaf morphology provided further support to the findings of phylogenetic analysis. A description of the new genus, new combinations, a key to the species of the new genus, discussions of the affinities of the species are also provided, as well as data on the conservation status of the species of Dryades. Additionally, new data on floral structure of C. heterophyllus, C. macrophyllus and C. minutiflorus (all from the Conchocarpus sensu stricto group) are provided.
The Rudgea hostmanniana complex (Rubiaceae) in the Guiana Shield region
Phytotaxa
A taxonomic revision of the Rudgea hostmanniana complex in the Guiana shield region is presented. This group includes species with sheathing stipules bearing dorsal appendages, thick glabrous leaves lacking domatia, inflorescences thyrsoid to glomerulate but not regularly dichotomous, a calyx tube absent or very short, a corolla tube 2–7(–13) mm long, and fruits usually brownish when immature and turning red or orange at maturity. Eight species are recognized, among which Rudgea billietiae, endemic to Kaw Mountain in French Guiana, is newly described and illustrated; it is assessed as Endangered according to IUCN criteria. The other species are R. bolivarensis, R. cornigera, R. coussareoides, R. hostmanniana, R. maypurensis, R. pungens, and R. tanaosepala. A key to the species is presented, as well as a table summarising their diagnostic characters.
Nuevas especies de Arachís (Leguminosae) de Brasil, Paraguay y Bolivia
Bonplandia
Se describen once especies nuevas de Arachís L. (Leguminosae), que representan siete de las nueve secciones taxonómicas del género. Ocho de las nuevas especies fueron citadas y clasificadas en la monografía de Krapovickas & Gregory, pero son ahora tratadas con su propio epíteto específico; una especie fue recolectada antes de 1994, pero el material dejaba suficientes dudas como para no incluirla en la monografía, y dos especies fueron recolectadas después que la misma fuera sometida a publicación. La descripción de esas once especies ayudará a clarificar la sistemática del género Arachís, así como a la comprensión de las líneas evolutivas de ciertos materiales importantes, algunos de los cuales podrían haber tenido un rol en los eventos que llevaron al origen del maní cultivado