A new species of <Emphasis Type="Italic">Almeidea</Emphasis> (Galipeinae,Galipeeae, Rutaceae) from Eastern Brazil

A new species of Almeidea (Rutaceae) belonging to the neotropical tribe Galipeeae (subtribe Galipeinae) is described and illustrated. This new species, Almeidea albiflora, is known so far only from a few collections made in small disturbed forest remnants in the vicinity of Cachoeiro de Itapemirim, in the state of Espírito Santo, and by a single collection from northern Rio de Janeiro state, both in the domain of the Atlantic Forest, Eastern Brazil. Diagnostic features, like white petals, sericeous ovary and distal secondary axes as long as the proximal ones are identified. Pollen morphology is also described, and brief discussions of the relationships of the new taxon to other species of Almeidea, as well as comments on its conservation status, are provided.     

<Emphasis Type="Italic">Croton borbensis</Emphasis>, a new species of Euphorbiaceae from white sands of Amazonian Brazil

A new species of Euphorbiaceae, Croton borbensis, is described and illustrated from western Amazonian Brazil. It shares features similar to another white sand Amazonian species, C. dissectistipulatus, but differs in having leaves with a serrulate-glandulose margin, no evident stipules, staminate flowers with six stamens and glabrous pedicels, pistillate flowers with few, shortly stipitate glands on the calyx, and a glabrous ovary. Croton borbensis is tentatively placed in section Barhamia.     

A new species of Cuscuta (Convolvulaceae) from Michoacán, Mexico

A new species, Cuscuta cotijana, is described and illustrated from the Trans-Mexican Volcanic Belt in northwestern Michoacán, Mexico. The species is most closely related to Cuscuta jalapensis, C. mitriformis, C. rugosiceps and C. lindsayi, from which it differs by the large spur-like projections on the outer calyx lobes and the ovoid to conical capsule with a small intrastylar aperture.     

Two new species of Myrtaceae (Myrteae) from northern South America

Two new species of Myrtaceae are described and illustrated. Campomanesia cucullata is a tree from Monte Alegre, Pará, in the Brazilian Amazon. It is most similar to C. lineatifolia, from which it differs by being leafless when flowering, and by having densely congested and very small flowers. Myrcianthes monteucalyptoides is a tree from Tarma, Junín, in Central Peru. It is most similar to Myrcianthes myrsinoides, but the new species differs by a combination of medium-sized, somewhat revolute, broadly-acuminate leaves, and by the solitary, pentamerous flowers with delicate pedicels.     

A new species of Castilleja (Orobanchaceae) from central Hidalgo, Mexico

Castilleja hidalgensis is described from several collections from xeric limestone sites in central Hidalgo, Mexico. The new species belongs to a small complex of poorly known and uncommon species within sect.Euchroma, sharing important characteristics withC. macrostigma, the first-described taxon in this assemblage. The new species appears to be rare and highly restricted both geographically and ecologically. A key to the species of theC. macrostigma group is provided.     

Two new species of Charianthus (Melastomataceae: Miconieae) from the Lesser Antilles

In the course of a phylogenetic analysis and systematic revision ofCharianthus, it was discovered thatC. purpureus, as traditionally circumscribed, is polyphyletic, consisting of three morphologically diagnosable entities. Thus two new species,Charianthus dominicensis andC. grenadensis, are described and illustrated. Each is endemic to the Lesser Antillean island for which it is named—Dominica and Grenada, respectively.Charianthus, the only vascular plant genus endemic to the Lesser Antilles, comprises six species of nectariferous, hummingbird-pollinated shrubs and small trees.     

A new species of Cycas from the Malabar Coast, Western Ghats, India

A new cycad species,Cycas annaikalensis, has been discovered from the Malabar Coast of the southern Western Ghats of India. Although geographically distributed in a small population within the range ofC. circinalis, it can be distinguished from the other described IndianCycas species by its distinct habitat, habit, morphology of vegetative and reproductive parts, and anatomy of leaflets.     

<Emphasis Type="Italic">Miconia walterjuddii</Emphasis> (Miconieae: Melastomataceae), a new species from Cuba

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 long; small flowers in dichasia, forming a compact, many-flowered, rounded to subcorymbose cymes, with purple to fuchsia colored petals.     

A new dwarf shrubby species of <Emphasis Type="Italic">Baccharis</Emphasis> subg. <Emphasis Type="Italic">Baccharis</Emphasis> (Asteraceae,Astereae) from southeastern Brazil

Baccharis dichotoma, a new dwarf shrubby species, with small leaves and few heads, of high-altitude grasslands from southeastern Brazil, is described, illustrated, and assigned to subgenus Baccharis.     

Two new species of Alstroemeria L. (Alstroemeriaceae) from Brazil

Alstroemeria hygrophila andA. orchidioides are both described as new from the state of Goiás (including Distrito Federal) in Brazil.Alstroemeria hygrophila is a cerrado bog-dwelling species that grows semi-epiphytically on the culms of a sedge. The vegetative stems of this species characteristically zig-zag between the pseudonodes. Like other wetlandAlstroemeria in Brazil (e.g.,A. apertiflora, A. isabellana, andA. sellowiana),A. hygrophila has wiry stems bearing narrow, lanceolate, nonresupinate leaves, and does not form root tubers.Alstroemeria orchidioides is a hysteranthus forest understory species with large vegetative leaves aggregated at the apex of the stems. The leaves on flowering stems are reduced to scarious bract-like scales. Its flowers are a pale, nearly white, greenish yellow, a color not reported in any other Brazilian species. Both species have 2n=16 chromosomes.     

Itaquascon unguiculum and Itaquascon cambewarrense. two new species of eutardigrades from Australia

Abstract

Two new species of eutardigrade, Itaquascon unguiculum and Itaquascon cambe‐warrense, are described from Australia. Itaquascon unguiculum differs from the other species of the genus by having small claws with respect to the body size, and in other quantitative characters. Itaquascon cambewarrense is characterised by stylet furcae which are triangular in shape, with apices thickened but not prolonged to form postero‐lateral processes.     

Stipa valdemonensis (Poaceae), a new species from Sicily

Abstract

A new species of Stipa, endemic to Sicily, named Stipa valdemonensis is described here. The new taxon is related to Stipa crassiculmis. Owing to the small number of individuals observed, in few restricted localities only, it is assigned the IUCN threat status “vulnerable”.     

A new species of nematode parasite,Cucullanus tunisiensis sp. nov. (Nematoda: Cucullanidae) from Epinephelus aeneus (Perciformes: Serranidae) off Tunisia

Cucullanus tunisiensis sp. nov., (Nematoda: Cucullanidae), collected from the intestine of the white grouper Epinephelus aeneus from waters off the coast of Tunisia is described based on light and scanning electron microscopic observations. The new species is characterized by the presence of lateral alae, ventral sucker, long unequal spicules (left spicule 2474-2789 μm long, right spicule 2357-2518 μm long). This is the sixth nominal species of the genus Cucullanus Müller, 1777 and the first representative of this genus infecting fishes of Serranidae family reported from Tunisian waters.

     

Nothotalisia, a new genus of Picramniaceae from tropical America

A new genus of Picramniaceae from tropical America, Nothotalisia, is described. Of the three species in the genus, N. piranii and N. cancellata, are new to science. The third, N. peruviana, was originally described as Talisia peruviana in the Sapindaceae. The genus and all three species are described, illustrated, and distinguished by means of a key.     

A synopsis of <Emphasis Type="Italic">Cohniella</Emphasis> (Orchidaceae,Oncidiinae)

A synopsis of the genus Cohniella is presented with nomenclatural updates with a discusion of diagnostic features and biogeographical data. Thirteen species and one natural hybrid are recognized. Two new species, Cohniella pendula and Cohniella biorbicularis, are described and illustrated. The following four new combinations are proposed: Cohniella binotii, Cohniella brachyphylla, Cohniella cepula, and Cohniella longifolia. Lectotypes are selected for Oncidium subulifolium, Oncidium helicanthum, Oncidium humboldtii, Oncidium jonesianum var. phaeanthum, Oncidium cepula, and Oncidium wittii. We also propose an amended lectotype for Epidendrum cebolleta and several epitypifications and new synonyms. A key to the genera of the Trichocentrum complex is presented (Appendix) as well as keys to the species of Cohniella.     

Six new species of <Emphasis Type="Italic">Timonius</Emphasis> (Rubiaceae: Guettardeae) from Papuasia

Six new species of Timonius (T. alius, T. bosaviensis, T. creber, T. cyathicalyx, T. insularis, and T. pullenii) are described from New Guinea and surrounding islands. The new species are illustrated and notes are provided on their habitat, distribution and phenology. None of the new species is readily assignable to any previously recognized subgenus or species-group.