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Showing papers in "Adansonia in 2009"


Journal ArticleDOI
TL;DR: Comparisons with molecular phylogenies show that the differences between endocarps have a phylogenetic significance, to some extent, and a key of the studied genera is proposed.
Abstract: Menispermaceae endocarps were very much used for long in the classification of this family. This organ also presents a definite palaeobotanical interest as it is often present in fossil state. The lack of a detailed knowledge on the endocarps of extant Menispermaceae limits the identification of those fossils. The present paper tries to fill this lack, describing endocarps of 116 species belonging to 55 different genera. The whole Menispermaceae family has drupaceous fruits, but there is an important morphological diversity of the endocarps, the differences between affiliated species being sometimes very slight. However, the comparisons with molecular phylogenies show that the differences between endocarps have a phylogenetic significance, to some extent. Menispermaceae endocarps are straight or underwent an often important curvature during their development. Almost all of these endocarps show a peculiar structure known as a condyle, which can have different aspects. Some characters, such as the endosperm structure and the style scar position on the pericarp, depend of endocarp characters, at least partially and with a few exceptions. Hypotheses on endocarp adaptation are limited by the lack of knowledge on the seed dispersal of this family. A key of the studied genera is proposed.

26 citations


Journal ArticleDOI
TL;DR: Planchonella contains henceforth 36 species in New Caledonia to which the here provide a diagnostic and an interactive online key under Xper2, available at ftp://ftp.ird.nc/pub/outgoing/biologie/herbier-nou/.
Abstract: Munzinger J. & Swenson U. 2009. — Three new species of Planchonella Pierre (Sapotaceae) with a dichotomous and an online key to the genus in New Caledonia. Adansonia, ser. 3, 31 (1): 175-189.

21 citations


Journal ArticleDOI
TL;DR: Nomenclature and typification of names in the endemic genus Pancheria (Cunoniaceae) from New Caledonia are reviewed to establish their correct orthography and authorship and they are lectotypified where necessary.
Abstract: Hopkins H. C. F. & Bradford J. C. — Nomenclature and typification of names in the endemic genus Pancheria (Cunoniaceae) from New Caledonia. Adansonia, ser. 3, 31 (1): 103-135.

20 citations


Journal ArticleDOI
TL;DR: Recent advances in the molecular phylogeny of Sarcolaenaceae indicate that both Mediusella and Xerochlamys are not part of Leptolaena, requiring a generic recircumscription of the entities in the Leptolena-Sarcolaena-Mediuseella-Xero chlamys clade.
Abstract: Hong-Wa C. 2009. — Endemic families of Madagascar. XII. Resurrection and taxonomic revision of the genera Mediusella (Cavaco) Hutchinson and Xerochlamys Baker (Sarcolaenaceae). Adansonia, ser. 3, 31 (2): 311-339.

10 citations


Journal ArticleDOI
TL;DR: Four new species of the Malagasy endemic genus Micronychia ate described based on newly available material are described, and a previously recognized variety is elevated to the rank of species, bringing the total number of accepted species to 10, a two-fold increase.
Abstract: Randrianasolo A. & Lowry II P. P. 2009. — Four new species and one new combination in the Malagasy endemic genus Micronychia Oliv. (Anacardiaceae). Adansonia, ser. 3, 31 (1): 157-168.

9 citations


Journal ArticleDOI
TL;DR: A nomenclatural account of all the published names with a recapitulatory list citing all the accepted names in subgenus Lacanthis as a first step towards the revision of the group.
Abstract: Malagasy relatives of the Crown-of-Th orns (Euphorbia milii Des Moul.) are well known worldwide for their ornamental value. Malagasy taxa account for almost 10% of the genus Euphorbia L., with 110 accepted names constituting subgenus Lacanthis (Raf.) M.G.Gilbert. Th e chaotic taxonomy combined with the poor state of preservation of most herbarium specimens makes the systematic study of this huge genus a quite diffi cult task. Th is paper off ers a nomenclatural account of all the published names with a recapitulatory list citing all the accepted names in subgenus Lacanthis as a fi rst step towards the revision of the group.

9 citations


Journal ArticleDOI
TL;DR: Rabehevitra D. et al. as discussed by the authors introduced a new critically endangered species of Schizolaena (Sarcolaenaceae) from Tapia woodland in south-central Madagascar.
Abstract: Rabehevitra D. & Lowry II P. P. 2009. — Endemic Families of Madagascar. XI. A new critically endangered species of Schizolaena (Sarcolaenaceae) from Tapia woodland in south-central Madagascar. Adansonia, ser. 3, 31 (1): 149-155.

9 citations


Journal ArticleDOI
TL;DR: A new species of Stolzia lejolyana Stévart, Droissart & Simo is morphologically close to the type subspecies, endemic to Ethiopia, but differs from it by a longer inflorescence with two flowers that are smaller.
Abstract: The genus Stolzia (Orchidaceae) in central Africa with two new taxa. A taxonomic revision of genus Stolzia (Orchidaceae) occurring in central Africa is given. Nine taxa are recognized. Two new taxa from Cameroon and Equatorial Guinea (Rio Muni) are described and illustrated. Stolzia repens (Rolfe) Summerh. var. cleistogama Stevart, Droissart & Simo differs from the two other varieties of S. repens by its dorsal sepal, which is jointed to lateral sepal on one third of his total length, and by its smaller and non-reflected sepals and petals. Stolzia grandiflora P.J.Cribb subsp. lejolyana Stevart, Droissart & Simo is morphologically close to the type subspecies, endemic to Ethiopia, but differs from it by a longer inflorescence with two flowers that are smaller. The morphological affinity of S. grandiflora subsp. lejolyana appears to lie with the varieties of S. repens (Rolfe) Summerh. However, the new species differs by having inflorescences with two flowers and a longer and thinner peduncle. Stolzia cupuligera (Kraenzl.) Summerh. and S. peperomioides (Kraenzl.) Summerh. are neotypified. The position of S. thomensis Stevart & PJ.Cribb is reconsidered and proposed as S. peperomioides (Kraenzl.) Summerh. subsp. thomensis (Stevart & P.J.Cribb) Stevart, Droissart & Simo. Many new records of Stolzia are given. Key to identification of species and synopsis table of all taxa occurring in central Africa are given.

8 citations


Journal ArticleDOI
TL;DR: A new species of Symplocos paniensis Pillon & Nooteboom, sp.
Abstract: Pillon Y. & Nooteboom H. P. 2009. — A new species of Symplocos (Symplocaceae) from Mont Panie (New Caledonia). Adansonia, ser. 3, 31 (1): 191-196.

8 citations


Journal ArticleDOI
TL;DR: These three species, restricted to the Comorian islands, show more affinity to Malagasy than to continental African Rubiaceae.
Abstract: The endemic Rubiaceae canopy trees of the Comorian Archipelago: floristic affinities in the Indian Ocean and taxonomy. The family Rubiaceae is well represented in the Comoros, but only three species are emergent canopy trees in the humid forest. The first one, Gyrostipula comorensis Homolle ex J.-F.Leroy (tribe Naucleeae) was previously thought to occur on Great Comoro and Moheli, but is now also known from Anjouan, making it an endemic of the whole Union of the Comoros. An emended description is proposed here incorporating data from recent new collections. The two other species belong to the tribe Vanguerieae and are endemic to Mayotte. Peponidium ovato-oblongum (K.Schum.) Mouly, newly combined here, was previously placed under Psychotria, while a later name, Peponidium comorense, here placed under synonymy, has also been published. Pyrostria heliconioides Mouly, newly described here, has spathiform inflorescences, unusual within the genus. These three species, restricted to the Comorian islands, show more affinity to Malagasy than to continental African Rubiaceae.

6 citations


Journal ArticleDOI
TL;DR: Three species of Lepisanthes Blume in Madagascar are recognized based on an analysis of morphological characters in combination with eco-geographic parameters as well as preliminary assessments of the conservation status for each species.
Abstract: A taxonomic revision of the genus Lepisanthes Blume in Madagascar is presented. Th ree species are recognized based on an analysis of morphological characters in combination with eco-geographic parameters. Two infraspecifi c taxa recognized previously in Aphania senegalensis (Juss. ex Poir.) Radlk. (= Lepisanthes senegalensis (Juss. ex Poir.) Leenh.) are raised to the species level, viz. L. chrysotricha (Capuron) Buerki, Callm. & Lowry and L. perrieri (Capuron) Buerki, Callm. & Lowry. A third species from northwestern Madagascar is described as new, L. sambiranensis Buerki, Callm. & Lowry. An identifi cation key to the Malagasy species of Lepisanthes is presented as well as preliminary assessments of the conservation status for each species.

Journal ArticleDOI
TL;DR: A new species of Gymnema (Asclepiadaceae) from the Kollihills in the Eastern Ghats of Peninsular India, allied to G. hirsutum Wight & Arn.
Abstract: A new species of Asclepiadaceae, Gymnema kollimalayanum A. Ramachandran & M.B.Viswan., sp. nov. is described here from the Kollihills in the Eastern Ghats of Peninsular India. Th is species is allied to G. hirsutum Wight & Arn. by habit, woody stems, milky latex, umbellate cymose infl orescence, 5-merous fl owers, calyx, corolla, anthers, follicles and comose seeds but diff ers by size and shape of leaves being elliptic or elliptic-rotund, subtruncate at base, abruptly acute at apex, longer petioles, arrangement of fl owers, longer pedicels, shape and size of calyx, corolla, larger size of follicles, seeds and coma.

Journal ArticleDOI
TL;DR: The vascular characters in addition to chromosomal, pollen, anther and seed characters, postulated by other authors, support the independence of M.Mikan from Cestreae.
Abstract: Liscovsky I. J., Cosa M. T. & Barboza G. E. 2009. — Flower vascularisation in Solanaceae: a particular pattern in Metternichia J.G.Mikan. Adansonia, ser. 3, 31 (2): 413-425.

Journal ArticleDOI
TL;DR: As the original holotype was lost, a neotype is designated here, and in the same paper Musa peekelii lectotype was designated based on an illustration, and thus to be considered the holotype.
Abstract: Hakkinen M. & Vare H. 2009. — Typification of Musa salaccensis and nomenclatural notes on Musa (Musaceae). Adansonia, ser. 3, 31 (1): 41-46.

Journal ArticleDOI
TL;DR: A new genus and species endemic to coastal sand dunes in southwestern Madagascar, it is related to the widespread paleotropical genus Perotis Aton, but differs in its spikelets with awnless glumes.
Abstract: Toliara arenacea Judziewicz (Poaceae), a new genus and species endemic to coastal sand dunes in southwestern Madagascar, is described and illustrated. It is related to the widespread paleotropical genus Perotis Aiton (Chloridoideae, Cynodonteae), but diff ers in its spikelets with awnless glumes. Known only from the region of the type locality near the city of Toliara, it is critically endangered.

Journal ArticleDOI
TL;DR: Following study of its morphological variation, two new taxa in the Dioscorea sambiranensis species complex are described and illustrated, and conservation status assessments show that all of the taxa of the complex are, or are likely to be, threatened.
Abstract: Wilkin P., Hladik A., Jeannoda V. & Weber O. 2009. — The threatened edible yams of the Dioscorea sambiranensis R.Knuth species complex (Dioscoreaceae): a new species and subspecies. Adansonia, ser. 3, 31 (2): 249-266.

Journal ArticleDOI
TL;DR: The New Caledonian flora is exceptionally rich in species linked to the genus Rapanea, the study of which having not been undertaken since the works of Mez published more than one century ago, and based on the examination of a small number of collections mainly made at low altitude when the speciation seems to have been very active in mountainous areas.
Abstract: Schmid M. 2009. — Contribution a la connaissance des Primulaceae (ex Myrsinaceae) de Nouvelle-Caledonie. II. Le genre Rapanea Aubl. Adansonia, ser. 3, 31 (2): 341-395.

Journal ArticleDOI
TL;DR: A synoptic revision of the genus Lastreopsis Ching (Dryopteridaceae) in Madagascar is presented, along with new distribution maps, and three new species are described.
Abstract: Rakotondrainibe F. & Tronchet F. 2009. — Revision synoptique du genre Lastreopsis Ching (Dryopteridaceae) a Madagascar. Adansonia, ser. 3, 31 (1): 7-24.

Journal ArticleDOI
TL;DR: A new Malagasy species of Convolvulaceae, Seddera madagascariensis Deroin & Sebsebe 2009, is described from the subarid bioclimatic region (Mahafaly and Androy).
Abstract: Deroin T. & Sebsebe Demissew 2009. — The genus Seddera Hochst. (Convolvulaceae) in Madagascar. Adansonia, ser. 3, 31 (1): 207-214.

Journal ArticleDOI
TL;DR: Sastre et al. as mentioned in this paper describe trois nouveaux Ouratea L. superba (Ochnaceae) du Paraguay, de Bolivie et d'Equateur.
Abstract: Sastre C. & Offroy B. 2009. — Description de trois nouveaux Ouratea L. (Ochnaceae) du Paraguay, de Bolivie et d'Equateur. Considerations taxonomiques, nomenclaturales et biogeographiques sur les especes affines d'O. superba Engl. Adansonia, ser. 3, 31 (1): 89-101.

Journal ArticleDOI
TL;DR: A new species of Acampe Lindl.
Abstract: Telepova-Texier M. 2009. — Acampe hulae Telepova (Orchidaceae), une nouvelle espece du Cambodge et du Laos. Adansonia, ser. 3, 31 (2): 267-272.

Journal ArticleDOI
TL;DR: The rehabilitation of this species is confirmed, its lectotypification is done and the main characters distinguishing it from F. leprieurii are reported here.
Abstract: Ake Assi L. & Jeremie J. 2009. — Lectotypification de Fagara mezoneurispinosa (Rutaceae), basionyme de Zanthoxylum mezoneurispinosum, espece endemique de Cote d'Ivoire. Adansonia, ser. 3, 31 (1): 169-174.

Journal ArticleDOI
TL;DR: A new species belonging to the genus Bertiera (subgenus Bertiera, Rubiaceae) from West Central Africa (Cameroon, Equatorial Guinea and Gabon) is described and its diagnostic characters are elucidated, its taxonomic affinities are discussed and notes on its conservation status are provided.
Abstract: Une espece nouvelle de Bertiera (sous-genre Bertierella, Rubiaceae) d'Afrique centrale atlantique. Adansonia 31 (2): 397-406.

Journal ArticleDOI
TL;DR: Closely resembling Hildegardia perrieri (Hochr.) Arènes, it differs in having distinctive multi-branched stellate hairs on the calyces and leaves, and in having flat (not revolute) leaf blades.
Abstract: Zaborsky J. G. 2009. — Hildegardia dauphinensis (Malvaceae, Sterculioideae): a new species from southeastern Madagascar. Adansonia, ser. 3, 31 (1): 143-148.

Journal ArticleDOI
TL;DR: To support the recognition of these two species as distinct taxa, some morphological characters are highlighted as the elliptic shape of the leaves, the frequency of domatias and the nearlyglabrous to glabrous state of the ovary.
Abstract: Tirel C. 2009. — Rehabilitation de l'espece Elaeocarpus coumbouiensis Guillaumin (Elaeocarpaceae) de Nouvelle-Caledonie. Adansonia, ser. 3, 31 (1): 137-141.