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Registros recuperados: 14.605
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A contribution to the wood anatomy of the Cinchoneae, Coptosapelteae and Naucleeae (Rubiaceae) Naturalis
Koek-Noorman, Jifke.
Wood samples of a number of Cinchoneae and Naucleeae sensu Schumann were studied, and the results compared with data found in the literature. On the whole the representatives of the Cinchoneae appeared to show a rather high degree of similarity among each other with the exception, however, of the genera Coutarea, Exostemma, Corynanthe, Crossopteryx, and Hymenodictyon. The creation of the tribe Coptosapelteae and its inclusion in the Ixoroideae seem to be corroborated by the particular character of the wood anatomy. The restriction of the Naucleeae to Nauclea L. ( Sarcocephalus Afzel.) is not supported by the anatomy of the wood.
Tipo: Article / Letter to the editor
Ano: 1970 URL: http://www.repository.naturalis.nl/record/534984
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A contribution towards a revision of the genus Tulasnella Naturalis
Jülich, W.; Jülich, Ute.
Redescriptions of nine species of Tulasnella are given, all based on the specimens of the Bourdot herbarium in Paris.
Tipo: Article / Letter to the editor
Ano: 1976 URL: http://www.repository.naturalis.nl/record/531685
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A contribution towards our knowledge of the Polychaeta of South Africa Naturalis
Horst, R..
2. Nereidae 1). Nereis (Platynereis) striata (Schm.). (Mastigonereis striata Schm.). Of this species several specimens were collected in Table bay, where they were found for the first time by Schmarda 2) and afterwards met with by Willey 3). Unfortunately the description of the species is rather short and incomplete and the synonimy somewhat dubious; therefore I think it not superfluous to give a detailed account of them, especially while an epitocous male was among them. The specimens are rather small, measuring about 30 mm. in length, whereas the number of segments amounts to 70. The specimens of Schmarda and of Willey were somewhat larger, measuring 50 mm. in length, with about 80 segments. Nereis striata is characterized by a conspicuous coloration,...
Tipo: Article / Letter to the editor Palavras-chave: 42.76.
Ano: 1918 URL: http://www.repository.naturalis.nl/record/318903
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A contribution towards our knowlegde of the Polychaeta of South Africa Naturalis
Horst, R..
1. Amphinomidae and Aphroditidae. Professor Max Weber, during a short stay in South Africa in 1894, made a small collection of Annelids, which he kindly handed me over for examination. As I found among them some species, which for the first time are mentioned from this interesting region, where the fauna'sof the Atlantic and the Indo-Pacific meet each other, it will not be without interest to publish a short note about them. Euphrosyne capensis Kinb. 1). (— polybranchia Schm.) 2). At Seapoint, near low watermark, 8 specimens were collected, the largest of which has only a length of 16 mm., whereas its breadth measures 6 mm.; the number of the segments of this specimen amounts to 45. Eurythoë complanata (Pall). This species, already mentioned by Potts from...
Tipo: Article / Letter to the editor Palavras-chave: 42.76.
Ano: 1917 URL: http://www.repository.naturalis.nl/record/318068
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A coral-eating barnacle, revisited (Cirripedia, Pyrgomatidae) Naturalis
Ross, Arnold; Newman, William A..
The coral-eating barnacle Hoekia monticulariae (Gray, 1831), the only internal parasite among the Thoracica described to this day, is characterized by an irregularly-shaped shell nestled cryptically between the polyps of the hermatypic coral Hydnophora Fischer, 1807, which occurs throughout most of the Indo-West Pacific. Because of its protean form, cirripedologists have failed to appreciate the diversity of taxa related to Hoekia, , a presumed monotypic genus. We describe seven new species divided between Hoekia and three new genera, Eohoekia, Parahoekia, and Ahoekia for which the Tribe Hoekiini is proposed. As in other pyrgomatids, calcareous overgrowth by the coral is inhibited around the edge of the wall and aperture. But in Hoekiini a pseudopolyp,...
Tipo: Article / Letter to the editor Palavras-chave: Cirripedia; Pyrgomatidae; Hoekia; Coral-eating barnacles; New species; Parasitism; Functional morphology.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/504389
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A correction Naturalis
Maas Geesteranus, R.A..
In Persoonia 2: 389. 1962, the new combination Hydnellum piperatum (Coker) Maas G. was proposed, but it escaped my attention that the basionym, Sarcodon piperatus, had not been provided with a Latin description, rendering the new combination invalid. The following diagnosis, taken from Coker’s description and augmented with a few notes of my own, should validate the name.
Tipo: Article / Letter to the editor
Ano: 1963 URL: http://www.repository.naturalis.nl/record/532341
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A craniometric comparison of Holocene populations of Myotis mystacinus (Kuhl, 1817) and M. brandtii (Eversmann, 1845) (Chiroptera, Mammalia) Naturalis
Rybář, P..
This paper presents the results of an analysis of about four hundred skulls of Myotis mystacinus and M. brandtii of the Holocene age from the Záskočie Cave (Central Slovakia). A review of criteria for species determination is presented, including a new criterion concerning the morphology of P4 roots, as well as the results of a statistical survey of skull dimensions and correlation and regression analyses. The author concludes that the above mentioned bats are not sibling species, but that they belong to different subgenera of the genus Myotis.
Tipo: Article / Letter to the editor
Ano: 1976 URL: http://www.repository.naturalis.nl/record/503938
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A crinoid crown from the Wenlock (Silurian) of Coalbrookdale, Shropshire, England Naturalis
Donovan, S.K.; Lewis, D.N..
The specific diversity of fossil crinoids from the Much Wenlock Limestone Formation at Dudley, Worcestershire, and in Shropshire differ by an order of magnitude. The latter are relatively depauperate and include only about six nominal species. Over 165 years ago, a specimen from Coalbrookdale, Shropshire, was identified as Cyathocrinites tuberculatus Miller (= the taxocrinid flexible Protaxocrinus tuberculatus (Miller)). This specimen, although indifferently preserved, is distinct from other Silurian crinoids of the British Isles and is described herein as a monobathrid camerate, Macrostylocrinus? jefferiesi sp. nov. This species has a moderately large, conical dorsal cup with at least 20 arms, broad primibrachials, a granular surface sculpture and no ray...
Tipo: Article / Letter to the editor Palavras-chave: Systematics; Crinoids; Macrostylocrinus; Wenlock; Silurian; England; 42.72; 38.22.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/314207
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A critical revision of the Genus Aristida being a preliminary study and an introduction to the monograph Naturalis
Henrard, J.Th..
Differt a typo praesertim columna valde abbreviata, tantum 8 mm. longa, bene torta, aristis brevioribus, circa 25 mm. longis; glumae inaequilongae, inferior 8—10 mm. longa, acuta, superior 13—14 mm. longa, subobtusa, gluma fertilis laevissima, callo acuto 1½ mm. longo, ad 5. mm. longa. Central South Australia: without precise locality, collected bij H. J. HILLIER, no. 46. Type in the Kew Herbarium, presented in 1906.
Tipo: Article / Letter to the editor
Ano: 1933 URL: http://www.repository.naturalis.nl/record/508331
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A Critical Revision of the Genus Aristida being a preliminary study and an introduction to the monograph Naturalis
Henrard, J.Th..
Being engaged during several years with a revision of the grasses preserved in the Rijks-Herbarium at the University of Leyden, my attention was called to the group of the Stipeae, and especially to the very difficult genus of Aristida. After an exhaustive study of the literature, I thought it desirable to have a monograph of this genus, containing extensive keys for the determination of all the species hitherto known, and I resolved to prepare such a work. It has been my good fortune that I had at my disposal not only the valuable collections of the Rijks-Herbarium, but that by the courtesy of the directors of the great herbaria in Europe and in America, I could study many thousands of specimens, among them authentic specimens and types. So several years...
Tipo: Article / Letter to the editor
Ano: 1926 URL: http://www.repository.naturalis.nl/record/508348
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A Critical Revision of the Genus Aristida being a preliminary study and an introduction to the monograph Naturalis
Henrard, J.Th..
A species with the habit of Aristida divaricata H. et B., but welldistinguished by the wanting column and the curious tuberculate lemmas. Closely allied to Aristida gentilis HENR., which differs however in the other position of the glumes and in the smooth lemma. The species resembles in some characters the Aristida Parishii HITCHC., the latter has however a totally different shape of the panicle and the lemma is not tuberculate-hispid, but scabrous only on the upper half. Among duplicates from the U. S. Nat. Herbarium, kindly received from Mrs. A. CHASE, I found a second plant belonging to the species, a plant also collected in Arizona, north slope of Santa Rita Mountains, leg. D. GRIFFITHS no. 7269.
Tipo: Article / Letter to the editor
Ano: 1927 URL: http://www.repository.naturalis.nl/record/508349
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A critical revision of the Genus Aristida being a preliminary study and an introduction to the monograph Naturalis
Henrard, J.Th..
Habitat frequens in collinis arenosis siccissimis Distr. Mossamedes, ex Giraûl usque ad Cabo negro, inprimis locis sabulosis oceano proximis, v. gr. ad „Praia da Amelia”, denso agmine crescens, per totum fere annum florens et fructificans (Junio, Julio et Septb. 1859 legi). Exsic. Welw. Iter Angol. no. 2000. Rhizoma abbreviatum, mox in fibras descendentes solutum; flbrae perplures, elongatae, cylindraceae, simplices, pennae corvinae crassiores, villo albido, velutino, viscido undique obtectae et subsucculentae. Caespites pro soli et expositionis ratione nunc angusti et depressi, pauciculmes, nunc ampliores et altiores, culmos 8—10 et plures emittentes. Folia radicalia dense congesta, in macrioribus arcuatoascendentia, 1—2 pollicaria, in robustioribus...
Tipo: Article / Letter to the editor
Ano: 1928 URL: http://www.repository.naturalis.nl/record/508247
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A curious thelypteroid fern Naturalis
Joncheere, G.J. de; Sen, U..
A new combination under Goniopteris is established for the rare Thelypteroid fern from Central America originally described as Aspidium cumingianum Kze.
Tipo: Article / Letter to the editor
Ano: 1981 URL: http://www.repository.naturalis.nl/record/525951
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A cyclopoid copepod, Sewellochiron fidens n. gen., n. sp., associated with a medusa in Puerto Rico Naturalis
Humes, Arthur G..
A new lichomolgid copepod, Sewellochiron fidens n. gen., n. sp., is described from Puerto Rico, where it is associated with the medusa Cassiopea xamachana.
Tipo: Article / Letter to the editor
Ano: 1969 URL: http://www.repository.naturalis.nl/record/505240
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A cytological investigation of flowering plants from the Canary Islands Naturalis
Loon, J.Chr. van.
The chromosome numbers of 85 species of flowering plants from the Canary Islands were determined; 5 of the counts turned out to be new. Notes on some species are given. Numbers deviating from previous counts proved to occur in Polycarpaea divaricata (Pit.) Poir. and Koeleria phleoides (Vill.) Pers. 49 counts are new for the Canary Islands and are listed in table 2.
Tipo: Article / Letter to the editor
Ano: 1974 URL: http://www.repository.naturalis.nl/record/534792
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A Cytotaxonomic study of Viola in the Netherlands Naturalis
Gadella, T.W.J..
1. The chromosome numbers of 10 species of the genus Viola in the Netherlands were determined. 2. Viola riviniana has various chromosome numbers: 2n = 35, 40, 45, 46, 47 (most often 2n = 40). 3. It was not possible to find a correlation between the external morphology and the various chromosome numbers in V. riviniana. 4. Despite the variability of V. riviniana it proved impossible to divide the Dutch material into subspecies. 5. Some differential characters of V. riviniana and V. reichenbachiana are described. 6. V. canina is not variable in cytological respect in the Netherlands. 7. V. calaminaria is not related to V. lutea but to the V. tricolor complex.
Tipo: Article / Letter to the editor
Ano: 1963 URL: http://www.repository.naturalis.nl/record/535226
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A Derbyshire screwstone (Mississippian) from the beach at Overstrand, Norfolk, eastern England Naturalis
Donovan, S.K..
A distinctive chert erratic pebble found on the beach at Overstrand, north Norfolk, eastern England, is a Derbyshire screwstone. Such cherts are typical of the Mississippian (Lower Carboniferous) limestones of the southern Pennines (White Peak), over 200 km to the northwest. It was most probably transported by fluvial or glacial action during the Pleistocene and was recently disinterred by coastal erosion. The most diagnostic feature of screwstone cherts are the included mouldic crinoid ossicles, particularly columnals. Columnals of the monobathrid camerate crinoid Megistocrinus? globosus? (Phillips) are described from this screwstone; these have a circular outline, central pentagonal lumen and a raised perilumen. The uncertainty of the identification is...
Tipo: Article / Letter to the editor Palavras-chave: Beachcombing; Provenance; Neogene; Carboniferous; Megistocrinus; 38.10.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/361971
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A description and discussion of threat- and anxiety-behaviour of Burhinus capensis (Lichtenstein) during incubation Naturalis
Broekhuysen, G.J..
Dedicated to Professor H. Boschma on the occasion of his seventieth birthday. INTRODUCTION The family Burhinidae or Stone Curlews, consists of large ploverlike birds which have no hind toe, long yellow legs with thickened tibiotarsal joints, hence the sometimes used popular name of "thickknee". The head is relatively big and very round and the eye is yellow, large and very striking. The bill is short and stout. The plumage is very cryptic when the bird is at rest, but in flight or in postures with wings raised a rather striking contrasty pattern becomes visible in the wing. All members of this family are nocturnal in their habits and during the day time they often squat on the ground among rocks and vegetation and are then difficult to spot unless they...
Tipo: Article / Letter to the editor Palavras-chave: 42.74.
Ano: 1964 URL: http://www.repository.naturalis.nl/record/318417
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A deviating female flower of Cercidiphyllum japonicum (Cercidiphyllaceae) Naturalis
Heel, W.A. van.
In one ‘flower’ a growing point occurred between a bract and its seemingly inverted carpel.
Tipo: Article / Letter to the editor
Ano: 1986 URL: http://www.repository.naturalis.nl/record/524974
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A digital catalogue of primary type specimens in German ornithological collections - a three year project running within GBIF - Germany - Vertebrata Naturalis
Elzen, R. van den; Frahnert, S.; Quaisser, C..
The Global Biodiversity Information Facility (GBIF) is an international initiative that aims to enable the worldwide exchange of biodiversity-related data through the internet. Within a three year project funded as a German contribution to GBIF the information about primary types of birds (and other vertebrates) in German collections will be made available through the internet (http://www.gbif.de). This information includes the original description, status (syntypes, holotypes, etc.), current taxonomic classification, collecting data, mode of preparation, current location as well as digital images of type specimens. So far, 900 of the expected 4000 primary type taxa of birds have been investigated and digitised. It is expected that by the end of the...
Tipo: Article / Letter to the editor Palavras-chave: Vertebrate; Type catalogue; Museum data network; Virtual museum; Type history; 42.83.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/210799
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