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| Registros recuperados: 26 | |
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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.; Steenis, C.G.G.J. van. |
| Small trees, shrubs or twining woody plants, rarely herbs; branches terete. Glands present in various parts. Indumentum consisting of simple hairs, or in Viburnum sometimes lepidote; glandular hairs mostly present. Stems often pithy. Leaves decussate, simple or deeply divided (Sambucus), sometimes provided with pitted or cup-shaped glands exuding resin. Stipules absent or very small. Flowers ♀, actinomorphic or zygomorphic, mostly cymosely arranged, 4—5-merous; outer flowers in an inflorescence sometimes differing from the normal ones, rarely ( Sambucus p.p.) some fls aborted into extra-floral nectaries. Calyx adnate to the ovary, (4—)5-fid or -toothed, mostly constricted below the limb; sepals often enlarged in fruit. Corolla epigynous, gamopetalous,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1948 |
URL: http://www.repository.naturalis.nl/record/532649 |
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| Kern, J.H.. |
| BORNEO. Sarawak: Ulu Tubau, Bintulu, skeletal sandy clay soil on steep hillside by sandstone rocks, Nyabau formation, mixed Dipterocarp forest, c. 350 m., Ashton S 18439 (L); base of Bt Naoung, Ulu Muput Kanan, Anap, sandstone rocks in shade, Biban formation, common, 600 m., Oct. II, 1963. Ashton S 19360 (L). West Borneo: Sanggau, am Ufer eines Bächleins, felsig, zwischen Baumwurzeln und Steinen, Juni 23, 1964, A. Elsener 26 (L). |
| Tipo: Article / Letter to the editor |
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| Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/524626 |
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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.; Nooteboom, H.P.. |
| Perennial herbs with tufted or creeping rhizome, monoecious, rarely dioecious. Stems arising centrally or laterally, erect or obliquely erect, mostly triquetrous or trigonous, rarely subterete, solid or sometimes hollow, often clothed at the base by persistent leaf-sheaths or their fibrous remains. Leaves tristichous, usually narrowly linear, sheathing at the base, with a ligule at the junction of blade and sheath, rarely lanceolate or elliptic with a more or less distinct petiole and eligulate, mostly basal and subbasal, 0-several higher on the stem, the lower ones often reduced to bladeless sheaths; sheaths of the stem-leaves and bracts closed. Inflorescence paniculiform, racemiform or spiciform, more rarely reduced to a single spikelet. Spikelets 1-very... |
| Tipo: Article / Letter to the editor |
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| Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/532662 |
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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.. |
| 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.. |
| 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.; 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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| 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.. |
| 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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| 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.. |
| 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.. |
| 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.. |
| Carex hartmanii Caj., a sedge new for the Netherlands, was discovered on Terschelling, one of the Frisian Islands. It grows there abundantly in a marshy dune valley west of the Boschplaat. The species is closely allied to C. buxbaumii Wahlenb., from which it mainly differs by the cylindrical, not club-shaped terminal spikelet, the shorter lowest bract, and the distinctly nerved, smaller utricles. |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/527221 |
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| Kern, J.H.. |
| Dr. McClure’s studies on the bamboos date from a period of service in China, at first as an Agricultural Explorer, since 1931 as a Professor of Botany at Lingnan University in Canton. On field trips in the Chinese interior and in Indo-China he collected numerous living bamboos, which were transplanted and studied in the to-day still intact Lingnan Bamboo Garden he had early established. After in 1941 the war had forced him to leave China, he studied living bamboos in the West Indies, Central and South America, and after the war in India, East Pakistan, Java, and Luzon. Being particularly interested not only in morphology, but also in taxonomy, he revised the bamboo collections of several herbaria in the United States and Europe. Proof of his comprehensive... |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/524544 |
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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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| 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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| 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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| Registros recuperados: 26 | |
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