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Registros recuperados: 73
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A conspectus og the genus Allophylus (Sapindaceae). The problem of the complex species Naturalis
Leenhouts, P.W..
Allophylus, at present with c. 255 accepted species, is considered as one of the largest genera of the Sapindaceae. It is distributed throughout the tropics of the Old and the New World, and shows a wide ecological range. Although somewhat variable in vegetative characters, there is a striking homogeneity in fertile characters, by which the generic disposition is easily spotted all over the world. Specific delimitation is renowned difficult in this genus (chapter 2). An analysis of the revision given by Radlkofer in his monograph of the Sapindaceae in ‘Das Pflanzenreich’, Heft 98 (1931—34) reveals that the characters, accepted by him as diagnostic, are all extremely vague, and often grading or overlapping. Of course, the species defined by these characters...
Tipo: Article / Letter to the editor
Ano: 1967 URL: http://www.repository.naturalis.nl/record/525034
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A new Canarium (Burseraceae) from Batjan I., Moluccas, Indonesia Naturalis
Leenhouts, P.W..
Descriptio typi: Arbor 35 m alta, 35 cm diam. Ramuli 2 cm diam., glabri; medulla fasciculis vasorum multis pro parte peripheralibus suffulta; gemma terminalis + 1 cm longa. Folia 7-jugata. Slipulae in hasi petioli insertae, subulatae, 4 — 5 mm longae, costatae, ± persistentes. Petiolus 20 cm longus, ca. 5 mm diam., medulla ca. 20-25 fasciculis vasorum suffulta; petioluli laterales 1 — 1,5 cm longi, petiolulus terminalis 3 cm longus. Foliola ca. 20 cm longa, 6 — 8 cm lata, elliptica vel ovata, pergamentacea, glabra; basis subobliqua, rotundata vel subcordata; margo integer; apex abrupte acuminatus, acumine 0,5 – 1,5 cm longo, angusto, rotundato; costa supra prominula; nervi laterales inter se ca. 1,5 cm distantes, subpatentes, praeter marginem abrupte...
Tipo: Article / Letter to the editor
Ano: 1981 URL: http://www.repository.naturalis.nl/record/524468
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A new Dichapetalum from the Solomon Islands (Dichapetalaceae) Naturalis
Leenhouts, P.W..
Liana dioica (?). Ramuli dense fulvo-tomentosi, glabrescentes, in partibus vetustioribus purpureo-brunnei, passim lenticellati. Folia c. 1 cm longe petiolata, elliptica, 16—20 cm longa, 9—11 cm lata, chartacea, juniora in costa nervisque fulvo-pilosa, matura subglabra, subtus sparse minute glandulosa, basi rotundata parum attenuata, apicem versus gradatim late acuminata, apice ipso obtusa, nervis utroque latere 6—8, curvatis, 2 vel 3 superioribus ante marginem conspicue arcuato-conjunctis. Inflorescentiae breviter (2—5 mm) crasseque pedunculata, ramis 2 scorpioideis c. 1½ cm longis, densifloris, breviter denseque fulvopilosis. Flores unisexuales, gemmis femineis tantum visis. Calyx 5-merus, sepalis 2½—3 mm longis, extus dense fulvo-pilosis, intus sparse...
Tipo: Article / Letter to the editor
Ano: 1966 URL: http://www.repository.naturalis.nl/record/525077
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A new Fagraea from Borneo (Loganiaceae) Naturalis
Leenhouts, P.W..
Among the collections of the Indonesian-Dutch Bukit Raya Expedition to Borneo, 1982—83, were two specimens of a new Fagraea. This appeared to be a subspecies of F. tacapala Leenh., up to now only known from the islands of Celebes and Ceram in three subspecies.
Tipo: Article / Letter to the editor
Ano: 1984 URL: http://www.repository.naturalis.nl/record/524987
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A new Fagraea (Loganiaceae) from Celebes, Indonesia Naturalis
Leenhouts, P.W..
Frutex scandens, 3 m altus. Folia petiolata; petiolus 1.5 — 2.25 cm longus, gracilis, exauriculatus; squama axillae pro majore parte libera, bilobata ad rotundata, usque ad 3.5 mm alta; lamina 13.5 — 22 cm longa, 4 — 6.5 cm lata, oblonga vel lanceolata, coriacea; basis anguste cuneata; margo integer; apex gradatim acuminatus, acumine longo gracili acuto; costa subtus rotundata; nervi secundarii utrimque circa 6, minute sulcati, subinspectabilis. Inflorescentiae terminales, triflorae, praeterea ramos basales trivel unifloros in axile foliorum summorum suffulta; pedunculi robusti 2 (— 15) mm longi, pedicelli robusti circa 1 cm longi, verrucosi, ebracteolati. Calyx campanulatus 6 — 7 mm altus, lobis semiconnatis, rotundatis, marginatis. Corolla membranacea,...
Tipo: Article / Letter to the editor
Ano: 1981 URL: http://www.repository.naturalis.nl/record/525156
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A new montane Scaevola from Borneo: S. Verticillata (Goodeniaceae) Naturalis
Leenhouts, P.W..
Frutex. Rami subteretes, lanato-tomentosi. Folia 4-verticillata, apice ramulorum congesta, ad axillas pilis sericeis isabellinis c. 1½ cm longis fasciculatis instructa; periolus c. ¾ cm longus, supra canaliculatus, lanatus; lamina obovato-oblonga, 5½-7 cm longa, 2½—3 cm lata, chartacea, in vivo verosimiliter convexa, margine recurvata, supra breviter tomentosa, subtus lanato-tomentosa, apice acuta, margine apicem versus minute serrata, basi cuneata parumque attenuata, costa supra parum canaliculata, subtus prominente, nervis utrinque 10—12 tenuibus supra prominulis subtus invisibilibus. Inflorescentiae axillares breviter pedunculatae, glomeratae, pauciflorae, bracteis sat magnis, floribus sessilibus. Flores 14 mm longi. Calyx heterosepalus, lobo dorsali...
Tipo: Article / Letter to the editor
Ano: 1964 URL: http://www.repository.naturalis.nl/record/524697
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A new species of Diploglottis (Sapindaceae) and its systematic position Naturalis
Leenhouts, P.W..
Description of a new species, Diploglottis bracteata Leenh., from Queensland, Australia. Reduction of Euphorianthus (E. Malesia) to Diploglottis (NE. Australia). Discussion of the occurrence of actinomorphic and zygomorphic flowers in the Sapindaceae in nearly all tribes and even within ten genera. Discussion of the systematic position of Diploglottis bracteata: this species seems distinctly allied to and more derived than the New Caledonian genus Storthocalyx, and thus may belong to an old element of the Queensland flora allied with that of New Caledonia. On the other hand, D. bracteata is within Diploglottis closest to the East Malesian species, whereas the further Australian species are distinctly more derived. They may belong to a younger element in...
Tipo: Article / Letter to the editor
Ano: 1978 URL: http://www.repository.naturalis.nl/record/525442
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A new species of Roureopsis (Connaraceae) from Thailand Naturalis
Leenhouts, P.W..
The new species Roureopsis confudens Leenh. is described from Thailand
Tipo: Article / Letter to the editor
Ano: 1978 URL: http://www.repository.naturalis.nl/record/525384
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A new species of Tristiropsis (Sapindaceae) from New Guinea Naturalis
Leenhouts, P.W..
Arbor 8 m alta, trunco 26 cm diam. Ramuli ignoti. Folia certe 1,5 m longa, glabra; petiolus teres, canaliculatus, 36 cm longus, 1,25 cm crassus; rhachis teres, supra graciliter costata; rhaches secundariae alternantes; petioluli 1—4 mm longi, supra fossa lata plana instructi, basi dilatati. Foliola 18 cm longa, 7,5 cm lata, ovata, pergamentacea; basis dimidio basiscopico angusto acuta, dimidio acroscopico lato rotundata, attenuata; apex gradatim acuminatus acumini brevi cuneato acuto; costa supra prominula gracilis; nervi secundarii ca. 1—1,75 cm distantes, a costa angulo ca. 55—65° abeuntes, subrecti usque subcurvati, ante marginem haud connati, utrinque subprominentes; venae intercalares inconspicuae. Thyrsi ca. 30 cm longi, rhachide ramisque sparse,...
Tipo: Article / Letter to the editor
Ano: 1978 URL: http://www.repository.naturalis.nl/record/526196
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A new species pf Dimocarpus (Sapindaceae) from Australia Naturalis
Leenhouts, P.W..
Dimocarpus australianus, a new species from Queensland, is described. It is compared with its nearest allies, D. foveolatus (Philippines) and D. fumatus (Indo-China to the Philippines, Borneo, and Java). This is also a new generic record for Australia.
Tipo: Article / Letter to the editor
Ano: 1973 URL: http://www.repository.naturalis.nl/record/525532
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A new Strychnos from Borneo (Loganiaceae) Naturalis
Leenhouts, P.W..
A subsp. maingayi praecipue characteribus sequentibus differt: Folia 13 cm longa, 5½ cm lata. Inflorescentiae praecipue axillares, tenerae, 1½—2 cm longae, 3—11-florae, glabrae. Flores 4- vel 5-meri. Calyx heterosepalus, sepala dua 1.2 mm longa, tria 0.8 mm longa, omnia ovata, obtusa, extus glabra, ciliolata, intus sparse adpresse brevepilosa. Corolla 4 mm longa; petala sublibera, lanceolata, acuta, apice papillosa. Filamenta 3 mm longa; antherae deltoideae, ½ mm longae, glabrae, thecis lateraliter longitudinaliter dehiscentibus. Pistillum 2¾ mm altum, glabrum. BORNEO. Sarawak: Bt Mersing, Anap, c. 200 m alt., fl. 24-8-1964, Sibal ak Luang S. 21957 (L, Typus) river bank, 15 ft tall climber with pale yellow flowers.
Tipo: Article / Letter to the editor
Ano: 1966 URL: http://www.repository.naturalis.nl/record/525802
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A new subspecies of Jagera Javanica (Sapindaceae) Naturalis
Leenhouts, P.W..
On comparing Australian collections of Jagera javanica (Blume) Kalkman with Malesian material, I was struck by some slight but constant differences in the flower. This led me to the recognition of a new subspecies, as follows: Jagera javanica (Blume) Kalkman, Blumea 7 (1953) 470 subsp. australiana Leenh., subsp. nov. Folia 9-15-jugata. Petala intus squama lata incurvata dense villosa 2 cristis grandiusculis latis glabris ornata instructa. Filamenta staminum plene dense candide villosa. – Typus: B. Gray 1455, Queensland, Cook Dist., Little Mossman, State Forest Res. 143, 16° 32' S, 145° 22' E, male fl. (BRI; iso in L, QRS).
Tipo: Article / Letter to the editor
Ano: 1987 URL: http://www.repository.naturalis.nl/record/525304
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A revision of Alectryon (Sapindaceae) in Malesia Naturalis
Leenhouts, P.W..
The genus Alectryon occurs with some 30 species in E. Malesia, Australia, New Zealand, New Caledonia, the New Hebrides, the Solomon Islands, Fiji, Samoa, and the Sandwich Islands. Radlkofer (in Engl., Pflanzenr. 98, 1933: 983-1002) divided the genus into six sections. As a whole these sections are mostly well recognisable, but a clear demarcation between at least some of them appears impossible. Preference is given here to a division into three or four subgenera, which seems more justified. As Mr. George K. Linney, Honolulu, is working on the Pacific representatives of this genus and as Ms. S.T. Reynolds, Brisbane, recently completed a revision of the Australian species, I restricted myself in the present paper to the Malesian taxa.
Tipo: Article / Letter to the editor
Ano: 1988 URL: http://www.repository.naturalis.nl/record/526067
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A revision of Crossonophelis (Sapindaceae) Naturalis
Leenhouts, P.W..
Tress or shrubs, exceptionally scandent; monoecious or dioecious; indument either consisting of solitary simple hairs, sometimes intermingled with some pairs or small tufts, or mainly consisting of small stellate tufts; neither glandular-capitate hairs nor glandular scales present. Leaves either all spiral or partly decussate, unifoliolate or paripinnate, 1—6-jugate, the lowermost pair sometimes stipule-like; neither petiole nor rachis winged. Leaflets opposite to alternate, beneath smooth, glabrous or variably hairy, mostly with hair tufts in (part of) the nerve axils beneath; base equalsided to slightly oblique; margin entire to undulate, exceptionally (in C. africanus) coarsely dentate towards the apex; nerves usually looped and joined in the upper part...
Tipo: Article / Letter to the editor
Ano: 1973 URL: http://www.repository.naturalis.nl/record/525913
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A revision of Dimocarpus (Sapindaceae) Naturalis
Leenhouts, P.W..
Dimocarpus Lour., Fl. Coch. (1790) 233. — Lectotype: D. lichi Lour. ( D. longan). Euphoria Auct. non Comm. ex Juss., Gen. (1789) 247, nom. illeg.: Gmel., Syst. Nat. 2 (1791) 611; Radlk., Pfl. R. Heft 98 (1932) 894—910.
Tipo: Article / Letter to the editor
Ano: 1971 URL: http://www.repository.naturalis.nl/record/524499
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A revision of Haplolobus (Burseraceae) Naturalis
Leenhouts, P.W..
The written history of Haplolobus is still less than one century old. O. Beccari, the great Italian naturalist, was the first to collect a specimen of this genus, June 1866 in Borneo, the only Haplolobus ever collected in W. Malesia! He, too, was apparently the first to recognize this genus as separate from Santiria, probably in 1872, but he never published it and his annotation became forgotten in his herbarium in FI (see Husson & Lam, Blumea 7, 1953. 456). The first species were described in 1889 by K. Schumann (in K. Sch. & Hollr., Fl. Kais. Wilh. Land) under Santiria. Only in 1931 the genus was split off from Santiria and formally described by H. J. Lam. The first revision appeared in 1932 (H. J. Lam, Bull. Jard. Bot. Btzg III, 12, pp....
Tipo: Article / Letter to the editor
Ano: 1972 URL: http://www.repository.naturalis.nl/record/525709
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A taxonomic revision of Harpullia (Sapindaceae) Naturalis
Leenhouts, P.W.; Vente, Magda.
The present taxonomic revision of Harpullia was started by the second author as the main part of her work for a M. Sc. in biology at Leiden University. She concentrated on a revision of the species occurring in New Guinea, paid only a more superficial attention to the rest of the genus. The first author supervised her work, completed it, and worked it up for publication. It is hoped that this taxonomic revision will be followed by two more papers, one on the pollen-morphology by Dr. J. Muller, secondly one on the systematics of the genus by the first author of the present paper. The system that will probably emanate from the last named paper is already used in the present one and, accordingly, will be sketched here. The genus is, as with Radlkofer...
Tipo: Article / Letter to the editor
Ano: 1982 URL: http://www.repository.naturalis.nl/record/525564
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A taxonomic revision of Nephelium (Sapindaceae) Naturalis
Leenhouts, P.W..
In the present revision of Nephelium 22 species are recognised, 6 of which are new (1 unnamed). Nephelium cuspidatum is subdivided into 6 varieties and 4 subvarieties; N. lappaceum comprises 3 varieties. The systematic connections within the genus are unclear.
Tipo: Article / Letter to the editor
Ano: 1986 URL: http://www.repository.naturalis.nl/record/525996
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A taxonomic revision of Xerospermum (Sapindaceae) Naturalis
Leenhouts, P.W..
Xerospermum Blume, Rumphia 3 (1847) 99; Radlk. in Engl., Pflanzenr. 98 (1932) 936-950. – Xerospermum sect. Tetrasepalum Radlk. (in Th. Dur., Index Gen. Phan. (1887) 76, nom. nud.) in Engl. & Prantl, Nat. Pflanzenfam. 3, 5 (1895) 331, nom. illeg. (I.C.B.N. ed. 1978, art. 22.1). – Type: X. noronhianum Blume. Xerospermum sect. Pentasepalum Radlk. [in Th. Dur., Index Gen. Phan. (1887) 76, nom. nud.] in Engl. & Prantl, Nat. Pflanzenfam. 3, 5 (1895) 331. — Syntypes: X. acuminatum Radlk., X. laevigatum Radlk.
Tipo: Article / Letter to the editor
Ano: 1983 URL: http://www.repository.naturalis.nl/record/526069
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Additional notes on Lepisanthes (Sapindaceae) Naturalis
Leenhouts, P.W..
After the completion of my revision of Lepisanthes (Blumea 17, 1969, p. 33—91) I paid a visit to the herbaria at London (BM) and Kew (K). This led to a few alterations and additions, the main of which are the following.
Tipo: Article / Letter to the editor
Ano: 1970 URL: http://www.repository.naturalis.nl/record/525294
Registros recuperados: 73
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