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| Registros recuperados: 26 | |
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| Kern, J.H.. |
| Annual or perennial, often grass-like herbs, only the monotypic African genus Microdracoides tree-like; the perennial spp. with short- or long-creeping, mostly sympodial rhizome not rarely emitting stolons. Stems solid, exceptionally hollow, sometimes septate, often trigonous, more rarely 2-sided or terete, or 4-, 5-, or multangular, usually nodeless below the inflorescence. Leaves often 3- ranked, more rarely distichous or polystichous, basal and/or cauline, usually sheathing at the base, the sheaths closed (in Mal.), very rarely open, the blades as a rule sessile, linear (grass-like) or setaceous, rarely lanceolate and petioled, rarely much reduced or even absent; sheath and blade whether or not separated by a rim of short hairs or by a membranous ligule... |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/532516 |
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| Kern, J.H.. |
| Euthales filiformis de Vriese (7) was described from a specimen collected in Western Australia ‘in solo sublimoso fertili prope praedium rusticum Dom. Marell, York d. 30 m. Martii 1840. Herb. Preiss No. 1889.’ As appears from the original description de Vriese himself had already his doubts about its belonging to Euthales, a Goodeniaceous genus: ‘dichotoma, filiformis; foliis radicalibus squamaeformibus, caulibus ramisque aphyllis; calycibus 5-fidis, subaequalibus (Caetera non vidi). Habitus Junci bufonii, sed genus dubium.’ In a later publication of de Vriese (8) the calyx is said to be trifid, but this is obviously a printing error. It is a matter of course that Bentham (2), who had not seen the plant, was unable to recognize it from this very... |
| Tipo: Article / Letter to the editor |
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| Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/524985 |
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| Kern, J.H.. |
| Ridley (1883) based the genus Acriulus (Cyperaceae) on two species, A. madagascariensis Ridl. from Madagascar, and A. griegifolius Ridl. from Angola, the former of which must be considered the nomenclatural type, as the generic characters were chiefly taken from it, and the latter species was but inadequately known at the time. The author originally admitted a close affinity of Acriulus to Scleria, but “the different habit, the solitary spikeiets, and the deeply cleft style not continuous with the ovary” he regarded as sufficient to base a new genus upon, and, later on even as so important that he placed Acriulus in a different tribe, viz in Cryptangieae, not in Sclerieae (Ridley, 1884). Having had the opportunity to study a fairly great number of Acriulus... |
| Tipo: Article / Letter to the editor |
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| Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/524888 |
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| Kern, J.H.. |
| Op de berm van de grote weg vlak bij het grenskantoor van Reusel (N.Br.) vond ik in Augustus 1955 een vrij groot aantal exemplaren van een Tragopogon, die ik niet thuis kon brengen. De grote hoofdjes op aan de top sterk verdikte stelen deden me aan T. porrifolius denkens, maar de weinige nog aanwezige bloemen waren helder geel, als hij onze gewone T. pratensis. Ik overwoog of ik misschien met een kruisingsproduct van T. porrifolius en T. pratensis te doen had, maar dat was toch niet waarschijnlijk. Bastaarden van deze twee soorten vertonen altijd een intermediaire bloemkleur. Een oplossing werd niet gevonden, omdat de mogelijkheid van een voor Nederland nieuwe Tragopogon niet in me opkwam en er dus geen buitenlandse flora werd opgeslagen. Toen ik echter... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/534159 |
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| Kern, J.H.. |
| Although Clarke saw the type of Scirpus erectus Poir. in the Paris Herbarium he misapplied the name to a quite different species occurring in Madagascar, S. and E. Asia, and tropical Australia. Herein he was followed by Ridley, Merrill, Backer, and others. It has now generally been accepted that the correct name of this species is Scirpus juncoides Roxb. and that the name Scirpus erectus Poir. does not belong to its synonymy. After having examined the type of S. erectus I am convinced that the question was admirably cleared up by Chermezon (see Arch. Bot. 4, 1931, 26, and also in Humbert, Fl. Madag., fam. 29, 1937, 149). Scirpus erectus is much nearer to the European S. supinus L. than to S. juncoides Roxb. It differs from S. supinus by the larger... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/526318 |
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| Visser, A. de; Kern, J.H.. |
| Tragopogon dubius Scop. Het duinterrein te Nieuwe Sluis in de gemeente Groede, waar verleden jaar de planten van Tragopogon dubius Scop. groeiden, is de afgelopen winter in verband met herstellingen aan de zeewering met behulp van draglines en bulldozers geëgaliseerd, waardoor de Tragopogon naar ik dacht volkomen uitgeroeid zou zijn. Ik bemerkte dit pas dit voorjaar en kon dus geen maatregelen nemen om een gedeelte van het terrein te sparen. Bovendien vrees ik, dat men aan mijn verzoek toch geen gevolg had kunnen geven. Enkele weken geleden bezocht ik het terrein weer en tot mijn vreugde vond ik toch nog twee planten, die het overleefd hadden. Mij bleek echter, dat kneuen bijzonder verzot zijn op de onrijpe zaden van deze soort. Zij pikken de omwindsels... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/534197 |
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| Kern, J.H.; Steenis-Kruseman, M.J. van. |
| Judging from the volume here reviewed it is to be expected that this atlas will become a splendid comprehensive survey of the ‘seeds’ of the NW. European Phanerogams. The complete work is planned to consist of 4 or 5 parts, of which part I will be published last, as it will contain general information and keys to the families. It is self-evident that the keys to the genera of Cyperaceae, to their sections, and in large sections to the species, wholly based on fruit-characters, cannot be easy. In random testing they proved to be reliable, as are the accurate descriptions. |
| Tipo: Article / Letter to the editor |
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| Ano: 1970 |
URL: http://www.repository.naturalis.nl/record/525763 |
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| Jongh, S.E. de; Kern, J.H.. |
| The variation and distribution of Veronica hederifolia in the Netherlands is more thoroughly discussed than in the preliminary paper bij DE JONGH (1968). It is shown that only two of the five taxa distinguished by M. Fischer occur, V. hederifolia L. and V. sublobata M. Fischer. The earlier records for V. triloba Opiz refer to V. sublobata. In a rather large number of specimens the combination of morphological characters typical of the two indigenous taxa was not found. Therefore the authors agree with Hartl that Fischer’s microspecies do not deserve specific rank. The correct names on subspecific level appear to be V. hederifolia L. subsp. hederifolia, and V. hederifolia L. subsp. lucorum (Klett & Richt.) Hartl. The distribution of the latter... |
| Tipo: Article / Letter to the editor |
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| Ano: 1971 |
URL: http://www.repository.naturalis.nl/record/527286 |
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| Degener, O.; Degener, I.; Kern, J.H.. |
| Herba perennis. Rhizoma breve, crassum, lignosum, squamis castaneis striatis obtectum. Culmi elati, usque ad 3 m alti, 2—4 mm crassi, teretes, glabri, usque ad apicem foliati et fere per totam longitudinem in vaginis foliorum absconditi. Folia culmum superantia, cinereo-viridia, tenacia, margine involuta, e basi dilatata 6—9 mm lata in acumen longissimum apice setaceo-caudatum scabrum gradatim angustata; vaginae longae, inferiores spadiceae vel atrofuscae, superiores stramineae; ligula angusta, rotundata vel in foliis superioribus triangularis, glabra, castanea. Inflorescentia paniculata, erecta, perangusta, (15—) 30—50 cm longa, 1—2(—3) cm lata, interrupta, e fasciculis 5—7 panicularum partialium elongato-oblongarum satis densarum constructa; rami 2—3-nim... |
| Tipo: Article / Letter to the editor |
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| Ano: 1964 |
URL: http://www.repository.naturalis.nl/record/526078 |
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| Kern, J.H.. |
| Mapania holttumii Kern, nom. nov. — Mapania insignis Holttum, Gard. Bull. Sing. 11, 1947, 293, non Sandwith, Kew Bull. 1933, 496. When publishing the name Mapania insignis for a species occurring in the Malay Peninsula, Holttum overlooked the existence of the earlier homonym Mapania insignis Sandw. for a different species from British Guyana. I therefore propose to replace the illegitimate binomial by that of Mapania holttumii. |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/524590 |
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| Kern, J.H.. |
| In the Flora of Tropical Africa C. B. Clarke (6) pointed out that in the collection of “Scleria foliosa Hochst., Abyssinia, prope Chire, Dillon & Petit” specimens of true S. foliosa Hochst. ex A. Rich. (4) are mixed with some of S. schimperiana Boeck. (1) and that “it would be very difficult to sort them without looking at the nut”. He referred S. dillonii Boeck. (2) to the synonymy of S. foliosa, and herein he was followed by all subsequent authors including Nelmes (3) and Robinson (5). However, already Boeckeler was aware of the fact that the Chire collection is a mixture, and on “S. foliosa Hb. Dillon et Petit. — an etiam Richardi? — pro parte (c. S. foliosa Hochst. intermixta)” he based his S. dillonii, different from S. foliosa mainly by its... |
| Tipo: Article / Letter to the editor |
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| Ano: 1962 |
URL: http://www.repository.naturalis.nl/record/524751 |
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| Kern, J.H.. |
| This third paper on Malaysian Cyperaceae chiefly discusses new and otherwise noteworthy species of Fimbristylis. In addition a key to the Malaysian species of the genus and a survey of their arrangement as accepted for the Flora Malesiana are given. A few new species are described from Siam and Indo-China. I am greatly indebted to the Directors of the Herbaria who granted me the opportunity to study the collections of their institutions. |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/525926 |
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| Kern, J.H.. |
| Herba perennis, rhizomate lignoso, adscendente. Culmus erectus, radicibus crassis teretibus 2—3 mm diam. sustensus, dense foliatus, c. 50 cm altus. Folia linearia, rigida, opaca, glaucescentia, basin conduplicatam versus straminea, apice sensim in flagellum triquetrum scaberrimum angustata, usque ad 50 cm longa, 5—7 mm lata, marginibus nervoque medio subtus apicem versus dense acuteque serrata, nervo medio subtus prominente, nervis lateralibus vix distinctis. Scapi brevissimi, in axillis foliorum caulinorum absconditi, spiculam unicam gerentes. Spiculae subsessiles, ovoideae, apice acutae, c. 15 mm longae, 7—10 mm latae. Glumae multinerviae, inferiores vacuae, coriaceae, ovatae, acutae, fuscae, membranaceo-marginatae, 8—9 mm longae; glumae florigerae... |
| Tipo: Article / Letter to the editor |
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| Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/525886 |
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| Kern, J.H.; Mennema, J.. |
| Wie meer van het interessante geslacht Carex wil weten dan een flora kan geven, wordt dit boek in handig zakformaat warm aanbevolen. Het is een waardig pendant van het ook door de Nederlandse floristen veel gebruikte en gewaardeerde „Grasses” van Dr. C. E. Hubbard. Degelijke hoofdstukken over de morfologie, anatomie, oecologie en classificatie der zeggen worden gevolgd door een uitvoerige determinatie-tabel. Vooral sociologen zullen ingenomen zijn met een tweede tabel, die het mogelijk maakt niet-bloeiende Carices en een aantal op Carex gelijkende Cyperaceeën op naam te brengen. Alle in de Britse eilanden voorkomende soorten worden nauwkeurig beschreven en 69 platen geven niet alleen goede habitus-beelden, maar ook vele details, die voor de determinatie... |
| Tipo: Article / Letter to the editor |
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| Ano: 1969 |
URL: http://www.repository.naturalis.nl/record/527506 |
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| Kern, J.H.. |
| After Boeckeler's treatise on the species of Scleria known in his day (5), no comprehensive study on the genus has ever been published. The preparation of an up-to-date monograph would be an arduous task, not only owing to the large size of the genus, but also to the numerous problems encountered in its delimitation and its subdivision. Fortunately several very valuable studies on the Scleriae of America and Africa have been published lately, which are important precursors to a future monographic treatment. Core (14) revised the American species, Chermezon (8, 9) those of Madagascar, Piérart (24) published a study on the species of Belgian Congo and Ruanda-Urundi, and Nelmes (22, 23) gave an account of the genus for the whole of Africa. The history of... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/526179 |
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| Kern, J.H.. |
| Fimbristylis ovata (Burm .ƒ.) Kern, comb. nov. — Carex ovata Burm. ƒ. Fl. Ind. (1768) 194; Kük., Pfl. Reich, Heft 38 (1909) 103. — Cyperus monostachyos L., Mant. 2 (1771) 180. — Abildgaardia monostachya (L.) Vahl, En. Plant. 2 (1806) 296. — Fimbristylis monostachya (L.) Hassk., Pl. Jav. Rar. (1848; 61. — Iriha monostachya (L.) O. Kuntze, Rev. Gen. Pl. 2 (1891) 751. Burman’s description of his Carex ovata is very short: ‘Spica terminali ovata feminea. Missa ex Java’. Raymond, Mém. Jard. Bot. Montréal no 23 (1959) 78, suggested that the neglected name might be the correct one for Carex tricephala Boeck. (1875), the only Carex species of the area that would fit Burman’s description. To me this supposition seemed unlikely, as Carex tricephala is a very rare... |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/524661 |
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| Kern, J.H.. |
| Zollinger, Plantae Javanicae n. 1254, collected ‘in sylvis umbrosis M. Pulusari’, and distributed as Carex indica L., is a mixture of two related but clearly distinct Carices both belonging in Section Indicae. This was already known to Steudel, who worked up Zollinger’s Cyperaceae and described part of the 1254 collection as a new species in his Synopsis (16, p. 207): ‘Carex commixta. Steud. Radice valide fibrosa; culmo triquetro glabro laevi toto fere vaginato et foliato (3-pedali), basi vaginis efoliatis brevibus ovato-lanceolatis et foliiferis vestito; foliis lanceolatis elongatis latis (ultra pedalibus, 4—7”’ latis) striatis pallidis subglaucescentibus margine scaberrimis ; paniculis axillaribus et terminali, omnibus pedunculatis simplicibus; radiis... |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/526057 |
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| Kern, J.H.. |
| 1. Fimbristylis savannicola Kern, spec. nov. — Sect. Fuscae Ohwi. — Fig. 1. Herba perennis, rhizomate lignoso brevissimo vaginis brunneis parce dissolutis circumdato. Culmi caespitosi, erecti, graciles sed firmuli, compressi, sulcati, dense puncticulati, glabri laevesque vel praesertim basin versus pilis albis patentibus antrorsisve pubescentes, 20—40 cm alti, 2/3— 1 mm crassi, ad basin incrassatam foliati. Folia erecta, rigida, setacea, canaliculato-conduplicata, apice abrupte acuminata, supra minute cellulosoreticulata, subtus costata, cinereo-viridia, pilis albis antrorsis dense pubescentia, ½—1 mm lata, laminis intus ad basin serie pilorum alborum a vagina separatis; vaginae striatae, cinnamomeae, antice membranaceae. Anthela subsimplex, densa, 1—2½ cm... |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/525186 |
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| Registros recuperados: 26 | |
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