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INDONESIA
REINWARDTIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 1,467 Documents
 85   86   87   88   89 
NOTES ON MORPHOLOGICAL CHARACTERISTICS OF EURYCOMA SPP. AND ITS STATUS IN PENINSULAR MALAYSIA TAN AI LEE; NURNIDA MOHD KAMAL; TAN HOOI POAY; IZLAMIRA ROSLAN
REINWARDTIA Vol 14, No 2 (2015): Vol.14 No.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v14i2.1669

Abstract

TAN, A. L., KAMAL, N. M., TAN, H. P. & ROSLAN, I. 2015. Notes on morphological characteristics of Eurycoma spp. and its status in Peninsular Malaysia. Reinwardtia 14 (2): 259 - 263. - A study had been carried out on the genus Eurycoma Jack that aimed to ascertain the diagnostic characteristics of the two species that occur in Peninsular Malaysia. Samples were collected from 15 localities comprising of forest reserves and plantations throughout Peninsular Malaysia covering the 5 regions i.e. northern, western, eastern, southern and central. The sampling was done to capture the morphological variations from different habitat. In general, morphologically both species were very similar. They could be clearly distinguished using their fertile parts. Eurycoma longifolia Jack had long, drooped inflorescences while in E. apiculata A.W. Benn was usually short, pointed upwards. Small differences were also noted on the leaflet of E. apiculata where the apex of the leaflet was often abruptly pointed while its base was rounded with conspicuous petiolule. On contrary, E. longifolia leaflet apex was usually subacute with its base asymmetrical and decurrent to its petiolule. In addition, anatomical transverse section of E. longifolia leaflet midrib outline and margin were dissimilar with E. apiculata by having convex abaxial surface and blunt tip margin compared to the slightly arc-shape abaxial and tapered margin in E. apiculata. The abundancy of Eurycoma spp. had decreased.
A NEW SPECIES OF ANISOPTERA (Dipterocarpaceae) II ANWARI DILMY
REINWARDTIA Vol 5, No 3 (1960): vol.5 no.3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v5i3.201

Abstract

Some new material of Anisoptera kostermansiana Dilmy, described by the present author in Reinwardtia 3: 347. 1956, was put at his disposal by the kindness of Mr. J. S. Womersley, Chief, Division of Botany at Lae, T.N.G.
SEED BANKS IN A SUBTROPICAL RAIN FOREST Rochadi Abdulhadi
REINWARDTIA Vol 11, No 1 (1992): Vol. 11 No. 1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v11i1.598

Abstract

The seasonal populations and vertical distribution of seed banks in a subtropical rain foirest were assesed. No seasonal variations were indicated in either the species composition or the size of seed bank over a year period. The number of seeds were 550 - 603 m square, and mostly composed of secondari species. This population decreased with increasing soil depths.
NOTES ON MALESIAN FERNS-I On the genus Lemmaphylluin Presl M. A. DONK
REINWARDTIA Vol 2, No 3 (1954): vol.2 no.3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v2i3.1027

Abstract

1. The genera Lepidogrammitis Ching and Weatherbya Copel.are merged in Lemmaphyllum. Presl. The inconstancy of the characters on which these genera have been separated in discussed.2. The following new combinations are proposed: Lemmaphyllum accedens (Bl.)Donk (basinym, Polypodium accedens Bl.) and Lemmaphyllum sect. Phlebodiopsis (Moore) Donk (basinym, Pleopeltis sect. Phlebodiopsis Moore).
A NEW SPECIES OF NEPENTHES (NEPENTHACEAE) FROM SUMATRA Pitra Akhriadi; Hernawati Hernawati; Rusjdi Tamin
REINWARDTIA Vol 12, No 2 (2004): Vol. 12, No. 2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v12i2.56

Abstract

AKHRIADI, PITRA, HERNAWATI & TAMIN, RUSJDI. 2004. A new species of Nepenthes(Nepenthaceae) from Sumatra. Reinwardtia 12 (2): 141 – 144. - A NewSpecies of Nepenthes rigidifolia is described.
A PHYSIOLOGICAL APPROACH TO CONSERVATION OF FOUR PALM SPECIES: ARENGA AUSTRALASICA, CALAMUS AUSTRALIS, HYDRI- ASTELE WENDLANDIANA AND LICUALA RAMSAYI Dian Latifah; Robert A. Congdon; Joseph A. Holtum
REINWARDTIA Vol 14, No 1 (2014): Vol. 14 No. 1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v14i1.421

Abstract

Palms (Arecaceae) are an important component of many tropical rainforests. Many have also been cultivated widely for agricultural commodities with high economic value. They are also important components in rehabilitation of disturbed or marginal lands. Knowledge and application of germination strategies are essential in the cultivation of palms. Many species have seeds that do not germinate readily, even when light conditions are favourable. This research determined the effects of seed coats, light and temperature on germination of Arenga australasica (H. Wendl. & Drude) S. T. Blake ex H. E. Moore, Calamus australis Mart., Hydriastele wendlandiana (F. Muell.) H. Wendl. & Drude and Licuala ramsayi var. tuckeri Barford & Dowe. We examined physical treatments to promote germination or break dormancy, as well as different light and temperature conditions. The results showed that the hard seed coats of the four species slowed imbibition. Scarified seeds germinated best for A. australasica, C. australis and L. ramsayi. The germination of all seeds was inhibited by far red light. The red light requirement suggests that these species prefer to colonise open areas. This implies that dispersal agents, canopy gaps and forest margins may play important roles in promoting regeneration as well as conservation of these palm species.
NEW AND CRITICAL MALAYSIAN PLANTS IV A. J. G. H. KOSTERMANS
REINWARDTIA Vol 4, No 1 (1956): vol.4 no.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v4i1.992

Abstract

1. Sixteen new species are described in Guttiferae : Garcinia longipedicellata, G. segmentata; Kayea laevis, K. paludosa.Lauraceae:Alseodaphne data, A. gigaphylla, A. obovata ; Beilschmiedia argentea, B.dilmyana, B. gigantocarpa,B.kinabaluensis, B. myrmecophila, B. rufolanata,B. rufoperulata,B. wieringae;Dehaasia novoguineensis. 2. Seven new combinations are coined in Lauraceae : Alseodaphne archboldiana (Allen) (basonym : Nothaphoebe archboldiana Allen),A. reticulata (Gamble) (basonym : Nothaphoebe reticulata Gamble) ; Beilschmiedia cuneata (Meissn.) (basonym : Persea cuneata Meissn.) ; Beilschmiedia palembanica (Miq.)(basonym : Cryptocarya palembanica Miq ) ; Dehaasia longipedicellata (Ridley) (basonym :Beilschmiedia longipedicellata Ridley), D. oblanceolata (Merr.) (basonym : Beilschmiedia oblanceolata Merrill) ; D. titanophytta (Airy Shaw) (basonym : Beilschmiedia titanophylla Airy Shaw). 3. Two new names are coined in Lauraceae : Dehaasia membranacea Kosterm. (based on Dehaasia longipedicellata (non Ridley) Merrill).Sterculiaceae : Sterculia perryae Kosterm. (based on Sterculia clemensiae (non Ridley) Merr. & Perry).
NOTES ON FIMBRIBAMBUSA WIDJAJA, WITH A NEW SPECIES FROM THE LESSER SUNDA ISLANDS Elizabeth Anita Widjaja
REINWARDTIA Vol 19, No 1 (2020): Vol.19 No.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v19i1.3838

Abstract

WIDJAJA, E. A. 2020. Notes on Fimbribambusa Widjaja, with a new species from the Lesser Sunda Islands. Reinwardtia 19(1): 55‒59. ‒‒ A new species, Fimbribambusa rifaiana Widjaja from Alor Island (Lesser Sunda Islands), is described and F. soejatmiae Widjaja & Ervianti, previously described contrary to Art. 40.7 of the ICN (2018), is validated. An improved generic concept of Fimbribambusa and an identification key to the Indonesian species are presented. 
BULBOPHYLLUM TRINERVOSUM, A NEW SPECIES OF SECTION MACROCAULIA (ORCHIDACEAE: BULBOPHYLLINAE) FROM WEST JAVA, INDONESIA Malcolm Victoriano; Yuda Rehata Yudistira
REINWARDTIA Vol 19, No 1 (2020): Vol.19 No.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v19i1.3850

Abstract

VICTORIANO, M. & YUDISTIRA, Y. R. 2020. Bulbophyllum trinervosum, a new species of section Macrocaulia (Orchidaceae: Bulbophyllinae) from West Java, Indonesia. Reinwardtia 19(1): 67‒73. ‒‒ A new species of Bulbophyllum (Orchidaceae: Bulbophyllinae) in section Macrocaulia from West Java, Indonesia is described as Bulbophyllum trinervosum Victoriano & Y.R.Yudistira spec. nov. This miniature orchid is found around Cakrabuana mountain range at an elevation of 1,300–1,550 m. The key characteristic of this species is unique among section Macrocaulia in having three nerves on its median sepal instead of five like the other species in this section. 
TOWARDS A FLORA OF NEW GUINEA: OLEACEAE. PART 1. JASMINUM, LIGUSTRUM, MYXOPYRUM AND OLEA. Ruth Kiew
REINWARDTIA Vol 19, No 1 (2020): Vol.19 No.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v19i1.3799

Abstract

KIEW, R. 2020. Towards a Flora of New Guinea: Oleaceae. Part 1. Jasminum, Ligustrum, Myxopyrum and Olea. Reinwardtia 19(1): 1‒25. ‒‒ Oleaceae in New Guinea is represented by five genera and about 32 species, namely Chionanthus (about 16 species), Jasminum (10 species), Ligustrum (3 species), Myxopyrum (2 species) and Olea (1 species). A key to genera as well as descriptions of and keys to species of Jasminum, Ligustrum, Myxopyrum and Olea are provided. Of the three Ligustrum species, L. glomeratum is widespread throughout Malesia, L. novoguineense is endemic and L. parvifolium Kiew is a new endemic species. Six species of Jasminum are endemic (J. domatiigerum, J. gilgianum, J. magnificum, J. papuasicum, J. pipolyi and J. rupestre). Jasminum turneri just reaches the northern tip of Australia; of the two species from the Pacific Islands J. simplicifolium subsp. australiense just reaches SE Papua New Guinea and J. didymum, a coastal species, reaches into Malesia as far north as E Java; J. elongatum is widespread from Asia to Australia. Neither Myxopyrum species is endemic: M. nervosum subsp. nervosum extends from Peninsular Malaysia to Indonesian New Guinea, and M. ovatum from the Philippines to the Admiralty Islands. The sole species of Olea, O. paniculata, stretches from Java to Australia and New Caledonia. 

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