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Eschweilera awaensis and Grias subbullata, two new species known from the wet forests of northwestern Ecuador, are described. Eschweilera awaensis occurs in Esmeraldas, Los Ríos, and the westernmost parts of the Pichincha provinces between 25–650 m elevation. Grias subbullata, is known only from two localities in the Santo Domingo de los Tsáchilas province between 900–1670 m elevation. The new species...
Miconia walterjuddii, a new species of Melastomataceae from the mountains in northeast Cuba, is described. This species can be easily assigned to Miconia section Chaenopleura due to its short anthers that open by two longitudinal slits. Sequence data from nrITS confirm this placement. This new species is characterized by its inconspicuous lepidote indumentum of minute adpressed scales ca. 0.05 mm...
Impatiens jinpingensis, a new species of Balsaminaceae from Yunnan, China, is described and illustrated. It is compared to the three similar species (Impatiens kamtilongensis, Impatiens wuchengyihii and Impatiens lancisepala) from Yunnan, China.
Recent phylogenetic studies have provided a revised hypothesis of the evolutionary relationships within Polygonaceae, particularly regarding placement of certain tropical taxa. Based on phylogenetic data, we recognize three subfamilies: Eriogonoideae, Polygonoideae, and Symmerioideae. Within the Eriogonoideae we accept six tribes, two of which, Leptogoneae and Gymnopodieae, are new.
A new species is described, Lundia laevis (Bignoniaceae). This species is distributed in the Brazilian Amazon and is characterized by its glabrescent stem, leaflets, and calyx, and the narrow infundibuliform corolla. A complete description, illustration, and comparisons with similar species are provided.
Clitopilus canariensis is described as a new species belonging to Clitopilus subgenus Rhodophana on the basis of a collection from La Palma, Canary Islands. The new species grows on humus of Cistus monspeliensis and is known from a single site. A photograph of fresh basidiomes of the type-collection and line drawings are provided.
The genus Acalypha (Euphorbiaceae) contains three commonly cultivated ornamental species. Two of these have been propagated for centuries and are not known in the wild: Acalypha hispida and A. wilkesiana. A third species has only recently appeared in the horticultural trade, with the earliest evidence of its cultivation from the mid-1980s. This taxon is often grown in hanging baskets or as groundcover...
Zamia tolimensis, a large arborescent species from the Central Cordillera of Tolima, Colombia, is described and illustrated. It is compared to Z. lindenii and Z. poeppigiana, the two most similar species. From these it is distinguished by leaflets with fewer teeth, sparse prickles on its petioles, beige-yellow ovulate strobili with shorter peduncles, and more microsporangia aggregated into a single...
Aristolochia gracilipedunculata, a new pseudostipule-bearing species from Bahía and Espíritu Santo (eastern Brazil), is here described and compared to other species present in this area that belong to the informal group Pseudostipulosae. The new species is easily recognizable by the presence of a long, filiform peduncle, and by the oblong, fimbriate perianth limb with a rounded and emarginate apex...
The monotypic Cuban endemic genus Euleria (Anacardiaceae) is shown to be a species of Picrasma and the new combination, Picrasma tetramera, is made. Also, a misapplication of the name Picrasma cubensis is corrected. Complete descriptions and illustrations are presented for both P. tetramera and P. cubensis, as is a key to the Cuban genera of Simaroubaceae and species of Picrasma.
Dalea conetensis, a new species from the central part of the State of Durango, Mexico, is described and illustrated. It is referred to Dalea subgenus Parosela sect. Parosela series Versicolores. It is morphologically similar to D. pinetorum var. pinetorum but can be distinguished by its shorter stipules, leaves, bracts, calyx teeth, petals, androecium, fewer and shorter leaflets, and the calyx pubescence.
Changes to the International Code of Botanical Nomenclature are decided on every 6 years at Nomenclature Sections associated with International Botanical Congresses (IBC). The XVIII IBC was held in Melbourne, Australia; the Nomenclature Section met on 18–22 July 2011 and its decisions were accepted by the Congress at its plenary session on 30 July. Several important changes were made to the Code as...
Most legume phylogenies have relied heavily on plastid gene datasets, with or without nuclear ribosomal DNA ITS data, but the sequences of nuclear genes and gene-spanning regions offer certain advantages. We tested the phylogenetic utility of five nuclear loci across the species-rich legume clade Hologalegina: PGDH, TRPT, HRIP, RNAR, and CNGC4 (CNGC4-like protein). Our objective was to determine whether...
Trimezia campanula (Iridaceae: Iridoideae), here described and illustrated, is endemic to Caparaó Mountains, Brazil. The new species broadens the circumscription of Trimezia. Its distinctive features include a golden-yellow campanulate perianth and filiform style branches with undivided apices that lack crests and have an apical stigmatic zone. The flowers of T. campanula most closely resemble those...
A new species, Cardiospermum cristobaliae (Sapindaceae, Paullinieae), from northern Minas Gerais, Brazil, is described, illustrated, and compared to its putative closest relative, C. urvilleoides. The new species belongs to section Cardiospermum. Also, characters of the foliar epidermis and pollen grains are described. The somatic chromosome number 2n = 24 is reported. A key to the South American...
Jacquemontia chrysanthera, a new species from northeastern Brazil, is described and illustrated, and its relationships with Jacquemontia martii and other species in section Cymosae are discussed.
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