Showing papers in "Blumea in 2011"
TL;DR: Twenty-six species of Cinnamomum are recognised in Borneo and fifteen species names are newly reduced to synonymy.
Abstract: Twenty-six species of Cinnamomum are recognised in Borneo. Seventeen species are endemic to Borneo. Fifteen species names are newly reduced to synonymy. The species nomenclature, description, distribution, ecology, vernacular names and uses are given.
32 citations
TL;DR: This work was supported by National Science Foundation grant DEB-0543909 to the University of Michigan and is based on research published in the journal “Proceedings of the National Academy of Sciences (NAS) 2016.”
Abstract: Molecular evidence shows the Old World genus Ryssopterys (Malpighiaceae) nested within the New World genus Stigmaphyllon; therefore, Ryssopterys is here transferred to Stigmaphyllon as subg. Ryssopterys. The subgenera share most vegetative and fruit characters. Subgenus Stigmaphyllon comprises 92 species characterized by hermaphrodite, bilaterally symmetrical flowers. Subgenus Ryssopterys includes 21 species that appear androdioecious but are probably functionally dioecious; the flowers are either hermaphrodite but likely functionally female, owing to inaperturate pollen, or male with a rudimentary gynoecium. All species have radially symmetrical flowers in which all parts of each floral whorl are equal; they lack calyx glands as well as the stylar folioles common in subg. Stigmaphyllon, for which the genus is named. The range of subg. Ryssopterys encompasses Indonesia (except Borneo and Sumatra), New Guinea, Queensland (Australia), New Caledonia, Vanuatu, the Solomon Islands, Micronesia, Palau, and the Philippines; S. timoriense has also been recorded from Taiwan and the Ryukyu Islands. An overview of the two subgenera is given. For subg. Ryssopterys summaries of the taxonomic history and morphology, as well as descriptions, a subgeneric key and regional keys, distribution maps, and illustrations of the novelties are provided. Twelve new combinations are proposed: Stigmaphyllon subg. Ryssopterys, S. abutilifolium, S. albidum, S. angustifolium, S. australiense, S. dealbatum, S. discolor, S. grandifolium, S. gymnopodum, S. intermedium, S. taomense, S. timoriense. Ten new species are described: S. brassii, S. mackeeanum, S. mariae, S. mcphersonii, S. merrillii, S. micranthum, S. papuanum, S. pullenii, S. solomonense, S. sundaicum.
24 citations
TL;DR: A monograph of Elaphoglossum subsect Muscosa, a monophyletic group supported by molecular phylogenetic analyses, and three new species are described: E. novogranatense, E. oreophilum, and E. quisqueyanum.
Abstract: The present paper provides a monograph of Elaphoglossum subsect. Muscosa, a monophyletic group supported by molecular phylogenetic analyses. The monograph includes keys, full synonymy, descriptions, representative specimens examined, an index to collectors’ names and numbers, illustrations, spore photomicrographs, and distribution maps for all species. Morphologically, the subsection is recognized by scaly rhizomes, petioles and laminae, obtuse leaf apices, and spores that are about twice as long as in other species of Elaphoglossum. Fifteen species of subsect. Muscosa are here recognized, with no subspecies or varieties. All of the species are Neotropical occurring from southern Mexico to Bolivia and Southeastern Brazil, with three species in the West Indies. Most of the species occur in the Andes from 1500–4000 m, primarily in cloud forests and paramos. Three new species are described: E. novogranatense, E. oreophilum, and E. quisqueyanum. The name E. glabrescens A.Vasco, nom. & stat. nov. is proposed. Lectotypes are designated for E. aschersonii, E. bellermannianum, E. blandum, E. caulolepia, E. corderoanum, E. decipiens, E. ellipsoideum, E. engelii, E. gardnerianum, E. lehmannianum, E. muscosum, E. viscidulum, E. yarumalense, and E. yatesii.
19 citations
TL;DR: The first putative hybrid tree species of the genus Bruguiera (Rhizophoraceae), B. × rhynchopetala, is reported from mangrove forests of China and Australia, and is acknowledged as B. sexangula with parent species restricted to different parts of the Indo-West Pacific.
Abstract: The first putative hybrid tree species of the genus Bruguiera (Rhizophoraceae), B. × rhynchopetala, is reported from mangrove forests of China and Australia. It was described from China previously as a variety of B. sexangula. The hybrid is acknowledged as B. gymnorhiza × B. sexangula with parent species restricted to different parts of the Indo-West Pacific. The hybrid is recognised at north-eastern and south-eastern parts of the overlap area between parent distributions, but it appears absent in western parts. Further local assessments are needed across the range. Hybrid status is supported by: 1) intermediate and shared morphological characters; 2) distribution limited to areas of co-occurrence of B. gymnorhiza and B. sexangula; and 3) molecular studies. However, compared with other mangrove genera with naturally occurring hybrids, this occurrence is unusual since this intermediate usually has functional flowers and fruits. Full descriptions are given for the new hybrid taxon and three larger, single-flowered Bruguiera taxa, along with distribution maps and a key.
19 citations
TL;DR: A new species, Piper chiangdaoense from Doi ChiangDao Wildlife Sanctuary, Chiang Mai province, Thailand, is described and illustrated.
Abstract: A new species, Piper chiangdaoense from Doi Chiangdao Wildlife Sanctuary, Chiang Mai province, Thailand, is described and illustrated. Piper trichostigma is raised to specific status and an epitype is selected. Piper maculaphyllum and P. rubroglandulosum are reduced to the synonymy of P. argyrites and P. betle, respectively. A lectotype for P. argyrites is selected.
16 citations
TL;DR: A new species from peat swamp and heath forests in north-western Borneo, which facilitates a facultative mutualistic interaction with Hardwicke’s Woolly Bat, Kerivoula hardwickii, which roosts in its pitchers and may provide the plant with a substantial proportion of its foliar nitrogen.
Abstract: Nepenthes baramensis, a new species from peat swamp and heath forests in north-western Borneo, is described. It is distinguished from related species on the basis of its modified pitchers, which facilitate a facultative mutualistic interaction with Hardwicke’s Woolly Bat, Kerivoula hardwickii, which roosts in its pitchers and may provide the plant with a substantial proportion of its foliar nitrogen.
13 citations
TL;DR: A revision of the genus Microcos in Peninsular Malaysia and Singapore was conducted resulting in the recognition of twelve species, with a complete list of exsiccatae, key, nomenclatural typification and synonymy, descriptions and illustrations provided.
Abstract: A revision of the genus Microcos in Peninsular Malaysia and Singapore was conducted resulting in the recognition of twelve species. Six taxa (M. antidesmifolia var. antidesmifolia, M. fibrocarpa, M. lanceolata, M. latifolia, M. laurifolia and M. tomentosa) are common and occur more or less throughout Peninsular Malaysia. Four species (M. globulifera, M. hirsuta, M. latifolia and M. tomentosa) are recorded for Singapore. One species (M. riparia) is newly recorded for Peninsular Malaysia, and two species (M. erythrocarpa and M. malayana) are endemic to Peninsular Malaysia. A complete list of exsiccatae, key, nomenclatural typification and synonymy, descriptions and illustrations are provided for all twelve species.
12 citations
TL;DR: Further investigation into the evolutionary relationships of the vireya group of Rhododendron, utilising nuclear DNA sequence data, has demonstrated that this group of species is monophyletic, and a revised classification is presented.
Abstract: Further investigation into the evolutionary relationships of the vireya group of Rhododendron, utilising nuclear DNA sequence data, has demonstrated that this group of species is monophyletic, and a revised classification is presented. The name Vireya is predated at sectional level by several other valid names and the correct name for the section is now Schistanthe. Within Schistanthe, four subsections are recognised: Discovireya, Euvireya, Malayovireya and Pseudovireya. Revised identification keys are provided. Some morphological features of value for classification and/or species delimitation are briefly discussed.
11 citations
TL;DR: A new species from kerangas heath forest of Brunei, Borneo, Hoya wongii is described and illustrated, having a corona with inflated outer processes and laterally compressed and erect inner processes, ending in two bidentate membranaceous appendages.
Abstract: A new species from kerangas heath forest of Brunei, Borneo, Hoya wongii, is here described and illustrated. This species differs from the previously described species of Hoya in having a corona with inflated outer processes and laterally compressed and erect inner processes, ending in two bidentate membranaceous appendages. The corona is inserted above a pale yellow campanulate corolla. We discuss morphological affinities between the new species and other campanulate flowered species of Hoya.
10 citations
TL;DR: A new species of Ocotea (Lauraceae) confined to inselbergs in French Guyana is described and illustrated.
Abstract: A new species of Ocotea (Lauraceae) confined to inselbergs in French Guyana is described and illustrated.
10 citations
TL;DR: The genera Diplarche and Menziesia have been shown to be nested in Rhododendron based upon cladistic analyses of DNA data and the species of these two genera are formally transferred to Rhododendedron.
Abstract: The genera Diplarche and Menziesia have been shown to be nested in Rhododendron based upon cladistic analyses of DNA data. Morphologically, the differences between Diplarche and Menziesia are not so great that their inclusion in Rhododendron is inappropriate and the species of these two genera are formally transferred to Rhododendron. The following new names are proposed: Rhododendron benhallii, R. chamberlainii, R. goyozanense, R. × kamatae, R. katsumatae, R. kroniae, R. menziesii, R. menziesii subsp. glabellum, R. multiflorum, R. multiflorum forma bicolor, R. multiflorum forma brevicalyx, R. multiflorum var. purpureum, R. pentandrum, R. pilosum, R. sophistarum, R. yakushimense.
TL;DR: The value of ecological information in distinguishing between controversial montane Bornean taxa is demonstrated and a revised protocol for the collection and preparation of Nepenthes specimens is provided, designed to maximise the amount of ecologicalInformation retained in herbarium material.
Abstract: Pitcher plants of the family Nepenthaceae are vines or subscandent shrubs which produce modified leaf organs that in most species serve to attract, trap, retain and digest animals for nutritional benefit. The sole genus within the family, Nepenthes, is abundant and diverse in Malesia. Previous taxonomic treatments of Nepenthes have relied almost entirely on the morphological features of the plants, with characteristics of the pitchers, inflorescences, leaf blades and indumentum being the most informative. Recent ecological research demonstrates that unique morphological characteristics and trap geometries provide useful taxonomic information, but this is often lost or obscured when specimens are prepared for herbaria by pressing them. In this paper, we demonstrate the value of ecological information in distinguishing between controversial montane Bornean taxa and provide a revised protocol for the collection and preparation of Nepenthes specimens, which is designed to maximise the amount of ecological information retained in herbarium material.
TL;DR: Drosera ultramafica, a new montane sundew species endemic to ultramAFic soils of the Malesian highlands, is described and illustrated.
Abstract: Drosera ultramafica, a new montane sundew species endemic to ultramafic soils of the Malesian highlands, is described and illustrated.
TL;DR: Ficus gibbsiae and F. laevicarpa are re-instated, the descriptions of F. macilenta are amended, F. fistulosa is re-evaluated and subdivided, and a key to the species discussed and found in the Philippines is presented.
Abstract: Ficus gibbsiae and F. laevicarpa are re-instated, the descriptions of F. benguetensis and F. macilenta are amended, F. fistulosa is re-evaluated and subdivided, and a key to the species discussed and found in the Philippines is presented; F. peninsula and F. prasinicarpa are validated, and F. cuneata is replaced by F. cuneiformis.
TL;DR: The conservation of East-Timorese Convolvulaceae is analysed and it is shown that they are inadequately represented in the established natural reserves' network.
Abstract: A taxonomic review of the Convolvulaceae in Timor is presented. A total of 61 taxa are listed, comprising 53 species from 15 genera. The most diverse genus by far is Ipomoea with 25 reported species, followed by Merremia with seven species. Of the seven species initially thought to be endemic, only six are endemic to the island. Two new records are presented (Cuscuta campestris and Merremia quinata) and a new species, Argyreia paivae, is described and illustrated. Keys to genera and species are included, as well as distribution maps. The conservation of East-Timorese Convolvulaceae is analysed and it is shown that they are inadequately represented in the established natural reserves’ network.
TL;DR: This paper deals with a group of species of the Neotropical genus Guatteria which are characterized by leaves with tiny warts (verruculae) on both surfaces and by elongate and short-stipitate monocarps (i.e., the length of the monocarp body surpassing thelength of the stipe).
Abstract: This paper deals with a group of species of the Neotropical genus Guatteria (Annonaceae) which are characterized by leaves with tiny warts (verruculae) on both surfaces and by elongate and short-stipitate monocarps (i.e., the length of the monocarp body surpassing the length of the stipe). These species were placed by Fries in Guatteria sect. Mecocarpus (Fries 1939) (the name derives from Ancient Greek µ???? = Poppy and ?a?p?? = fruit: fruit resembling that of Papaver species). All occur in South America, none having been found elsewhere so far. Although there is much doubt nowadays about the taxonomic significance of Fries's sections, we maintain sect. Mecocarpus at present for convenience's sake. Additionally, the former genus Guatteriopsis, united with Guatteria a short time ago (Erkens & Maas 2008b), is now also included in sect. Mecocarpus. The same applies to one of the two species attributed to Guatteriella (also merged with Guatteria by Erkens & Maas 2008b), namely Guatteriella tomentosa R.E.Fr. (not Guatteria tomentosa Rusby) which is put into synonymy with Guatteria trichocarpa Erkens & Maas. One new species is described, namely Guatteria griseifolia Maas & Westra. The two species complexes of G. guianensis and G. decurrens are now treated each as a single polymorphic species. The present study falls within the framework of a planned monograph of the whole genus Guatteria.
TL;DR: Ficus sulawesiana and F. gorontaloensis are described as new species and the description of F. schwarzii is emended.
Abstract: Ficus sulawesiana and F. gorontaloensis are described as new species and the description of F. schwarzii is emended. A modified key is included.
TL;DR: Anthocleista potalioides, a new narrowly endemic species of the Chaillu Mountains in Gabon is described and illustrated and its taxonomic position among the known African species is discussed.
Abstract: Anthocleista potalioides, a new narrowly endemic species of the Chaillu Mountains in Gabon is described and illustrated. Its taxonomic position among the known African species is discussed. It stands apart by a small 8-merous corolla and a 2-locular ovary. Remarks on the affinities of the African genus Anthocleista and Potalia from tropical America are presented.
TL;DR: The type of Alafia velutina Leeuwenb proves to be conspecific with Farquharia elliptica Stapf and hence becomes a new synonym of the latter name.
Abstract: The type of Alafia velutina Leeuwenb. proves to be conspecific with Farquharia elliptica Stapf and hence becomes a new synonym of the latter name. Maintaining a specimen database may help in avoiding mistakes like this.
TL;DR: Some morphological features of Indigofera are given and the recently described I. erectifructa is reduced to a synonym of I. luzoniensis.
Abstract: Notes on some morphological features of Indigofera as well as taxonomic notes on several species are given. The recently described I. erectifructa is reduced to a synonym of I. luzoniensis.
TL;DR: The anomalous Chirita elata proves to belong to Codonoboea (Gesneriaceae), necessitating the new combination Codonoba elata elata.
Abstract: The anomalous Chirita elata proves to belong to Codonoboea (Gesneriaceae), necessitating the new combination Codonoboea elata.
TL;DR: Croton maasii, a new species from South America, is described and illustrated in this paper, which is only known from terra firme forests of the extreme western Amazonian region, in W Brazil and adjacent E Peru.
Abstract: Croton maasii, a new species from South America, is described and illustrated. The species is only known from terra firme forests of the extreme western Amazonian region, in W Brazil and adjacent E Peru. Croton maasii resembles C. pachypodus, a more abundant and widely distributed species in the Neotropics, but differs from it in its much smaller fruits, foliage colour, less dense leaf indumentum, and a more even position of the petiolar glands.
TL;DR: Herbaceous climber grows on limestone at ≤ 50 m, with flowering in July and fruit unavailable.
Abstract: Herbaceous climber. Stem cylindrical, 1–3 mm diam, branched, hairy with soft villous hairs to 1 mm long, ridged; tendril 2–3-furcate, slender, wiry, leaf-opposed, cylindrical, peduncle straight, 1.5–4 cm by 0.5–1 mm, then bifurcating and coiling for 2–7 cm, hairy as stem. Leaves 3-foliolate, alternate; petiole 1–3.5 by c. 1 mm, hairy as stem, central petiolule 0.5–1.5 cm long, lateral petiolules 0.3–0.7 mm long, hairy as stem; central leaflet blade oval to ovate, 3–6 by 1.5–3 cm, base truncate to subauriculate; lateral leaflet blades semi-cordate, 3–5 by 2–2.5 cm, base oblique to cordate; margin deeply dentate with triangular teeth to 4 by 5 mm, apex cuspidate; adaxial and abaxial sides hairy with appressed hairs to 1 mm long, veins protruding, 1 main basal vein, 6 pairs of secondary veins. Inflorescence ramified, axillary, mostly dividing dichotomously, corymbose, 1–2 cm long; peduncle 3.5–4 cm by c. 1 mm, hairy as stem, pedicel 1.5–2 mm long, puberulent with hairs to 0.1 mm long. Buds globose to ovoid, 1.5–2 by 1–1.5 mm. Calyx cupuliform, entire, margin sinuate, c. 0.5 by 1.5 mm, hairy as pedicel. Petals 4, ovate, 2–2.3 by 1–1.5 mm, apex cucullate, farinose, hairless. Stamens 4; filaments flattened, broadening at the base, c. 1.3 mm long; anthers elliptic, medifixed, c. 0.8 mm long. Ovary adnate to the disc; disc with 4 distinct lobes, cupulate, 0.5–1 by c. 1.5 mm, glabrous. Style conical, c. 0.8 mm long; stigma inconspicuous. Fruit unavailable. Distribution — Thailand and Vietnam. A disjunct distribution, not yet collected in Cambodia, Laos and E/SE Thailand. Habitat & Ecology — Growing on limestone at ≤ 50 m. Flowering in July.
TL;DR: Detailed morphological study of specimens of Lobelia sect.
Abstract: Detailed morphological study of specimens of Lobelia sect. Rhynchopetalum from Malesia revealed that this material could be divided into five species, all endemic to the region: L. philippinensis (three subspecies) and L. proctorii, endemic to the Philippines; L. sulawesiensis, sp. nov., endemic to Sulawesi; L. sumatrana, endemic to Sumatera; and L. eryliae, with one subspecies in the Philippines and the other in Sulawesi. A key is provided for distinguishing these taxa and each is described fully.
TL;DR: Curcuma sumatrana currently qualifies under IUCN assessment as vulnerable, but due to the decline of its habitat, it is likely to fulfil the criteria as endangered in near future.
Abstract: A recent exploration of Sumatra resulted in the re-collection of Curcuma sumatrana, an endemic Zingiberaceae species of unclear identity that was first described by Miquel nearly 150 years ago. The history of this species is discussed, a detailed description with a colour plate is provided and a lectotype is designated. Curcuma sumatrana currently qualifies under IUCN assessment as vulnerable, but due to the decline of its habitat, it is likely to fulfil the criteria as endangered in near future. As there is no comprehensive revision of the family Zingiberaceae for Sumatra in progress, it is meanwhile important to make accessible the characteristics of this endemic species to facilitate its proper identification and conservation management.
TL;DR: A new fern species, Odontosoria quadripinnata, is described from New Guinea, which resembles O. retusa, but has quadriplegic laminas, short sori and monolete spores in contrast to tripinnate laminar division, continuous sore and trilete spores in O. Retusa.
Abstract: A new fern species, Odontosoria quadripinnata, is described from New Guinea. The new species resembles O. retusa, but has quadripinnate laminas, short sori and monolete spores in contrast to tripinnate laminar division, continuous sori and trilete spores in O. retusa.
Journal Article•
TL;DR: The name Ficus laurifolia has to replace F. ovata in the genus Ficus because of confusion about origin of material in cultivation in several European gardens.
Abstract: The name Ficus laurifolia has to replace F. ovata. Confusion about origin of material in cultivation in several European gardens has created a good number of names.
TL;DR: Five new combinations are made in the genus Bremeria: B. scabrella, M. stadmanii, and M. trichophlebia, and Lectotypes are designated for Mussaenda erectiloba var.
Abstract: Five new combinations are made in the genus Bremeria: B. arachnocarpa, B. eriantha, B. scabrella, B. landia var. holosericea, and B. landia var. stadmanii. Bremeria gerrardii is conspecific with Gaertnera phanerophlebia, and thus excluded from Bremeria. Lectotypes are designated for Mussaenda erectiloba var. scabrella, M. stadmanii, and M. trichophlebia.
TL;DR: Selaginella devolii sp.
Abstract: Selaginella devolii sp. nov. is described from four populations located in central and southern Taiwan. It is an annual prostrate lycophyte, growing on moist rocky slopes. Its diagnostic characteristics include its small size, tiny broadly ovate trophophylls, complanate strobili, and sporangia which are only formed at the ventral sporophylls. Notes on taxonomy and distribution and a line illustration are provided.
TL;DR: A new species from Gentianaceae (tribe Helieae) is described from northern Brazil by having a woody and branched habit, sessile and ovate leaves with an acute apex, and a smaller calyx with circular lobes.
Abstract: A new species from Gentianaceae (tribe Helieae) is described from northern Brazil. Sipapoantha obtusisepala sp. nov. is distinct from the previously single member of the genus, Sipapoantha ostrina, by having a woody and branched habit, sessile and ovate leaves with an acute apex, and a smaller calyx with circular lobes. Sipapoantha obtusisepala is based on somewhat incomplete material and tentatively placed in Sipapoantha based on the presence of key generic characters such as coriaceous leaves with strongly revolute margins and blue corollas. It has only been recorded from one locality in the Brazilian-Guyana border area in the state of Roraima.