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INDONESIA
REINWARDTIA
Published by Lembaga Ilmu Pengetahuan Indonesia
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Articles 1,467 Documents
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Two new species of Begonia (Begoniaceae) from Bukit Tigapuluh National Park, Sumatra, Indonesia Deden Girmansyah
REINWARDTIA Vol 13, No 3 (2012): Vol. 13 No. 3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v13i3.450

Abstract

Two new species of Begonia (Begoniaceae) from Bukit Tigapuluh National Park, Sumatra, Indonesia are described. Those are Begonia triginticollium Girm. belongs to Begonia section Bracteibegonia and Begonia dolichocarpa Girm. belongs to Begonia section Petermannia.
ETUDE SUR LES RAPPORTS ENTRE LES GENRES UITTIENIA, DANSERA ET DIALIUM (Legum.-Caesaip.) R. L. STEYABRT
REINWARDTIA Vol 2, No 2 (1953): vol.2 no.2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v2i2.1022

Abstract

1. On the basis of a detailed comparison of all characters, the genera Uittienia and Dansera are joined to Dial him as subgenera. This brings the number of subgenera in this genus to four, viz., Dialium, Dansera, Vittievia, and Around.2. Davxeia and Uittienia ate close to the subgenera Dialium and Arouna respectively, but one or two characters of each put them both as intermediates between the latter two.3. Subgenera Dialium and Arouna remain in their previously described geographic distributions, but Uitticnia appears to have a close relationship with Aroiiva. A point of phylogeny is left open here for further consideration when further data will he available.4. The trimery of flowers in Dansera is abnormal for both the genus Dialiuw and the tribe Cassieae, but it might bring proof that the connexion of Dialium hexa nepalmn Harms with the genus was previously unduly questioned by the author.The type and only known specimen of the latter species was destroyed during the war;collections of new specimens would, therefore, be of the highest interest.
ANOTHER NOTE ON PODOCONIS MEGASPERMA BOEDIJN (HYPHOMYCETES) Mien A. Rifai
REINWARDTIA Vol 12, No 4 (2008): Vol. 12, No. 4
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v12i4.51

Abstract

RIFAI, M.A. 2008. Another note on Podoconis megasperma Boedijn (Hyphomycetes). Reinwardtia 12 (4): 277– 279. –– Exosporium megaspermum (Boedijn) Rifai and Exosporium ampullaceum (Petch) M.B.Ellis are transferred to Neopodoconis Rifai, a newly created genus extracted from Exosporium Link based on the nature of the true septation of their rostrate conidia. Two new combinations, Neopodoconis ampullacea (Petch) Rifai and Neopodoconis megasperma (Boedijn) Rifai, accordingly are proposed.
FLORISTIC COMPOSITION AND STRUCTURE OF A PEAT SWAMP FOREST IN THE CONSERVATION AREA OF THE PT NATIONAL SAGO PRIMA, SELAT PANJANG, RIAU, INDONESIA Yusi Rosalina; Kuswata Kartawinata; Nisyawati Nisyawati; Erwin Nurdin; Jatna Supriatna
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.v14i1.416

Abstract

We studied the floristic composition and structure of the logged-over peat swamp forest in the  PT National Sago Prima of PT Sampoerna Agro Tbk. group for future management of the conservation area that has been  set aside by the company.  In January - February 2012, 25 quadrats of 20 m x 20 m were laid out systematically along a transect,  thus covering a sampled area of 1-ha.  The results showed that the study site was a regenerating and developing secondary peat swamp forests having high plant species richness.  The total number of species recorded was 73 species of 38 families, consisting of 49 species (30 families) of trees (DBH? 10 cm ), 42 species (24 families) of saplings (H > 1.5 m and DBH < 10 cm), and 41 species (27 families) of seedlings and undergrowth.  Tree density was 550 individuals/ha, and total tree basal area was 18.32 m2. The Shannon-Wiener’s Diversity Index for trees was high  (3.05)  Two tree species with the highest Importance Values (IV) were Pandanus atrocarpus (IV= 45.86 %) and Blumeodendron subrotundifolium (22.46  %).  The tree families with the highest IV were Pandanaceae (45.86), Myrtaceae (40.37), and Dipterocarpaceae (39.20). Forest structure dominated by trees with a diameter below 20 cm amounting to 408 trees/ha (74.05%). and  D and E strata with height of less than 20 m, and density of 431 trees/ha (78.36%). Jaccard Similarity index among species, showed  strong association between Pandanus atrocarpus and Blumeodendron subrotundifolium  and based on this association combined  with high IVs, the two parameters of species  characterized the forest, hence the forest could be designated as the Pandanus atrocarpus--Blumeodendron subrotundifolium association. Primary forest species with high economic values were still present in the forest. Eleven species can be included in the IUCN Red List, of which Shorea rugosa is in the category of Critically Endangered), Shorea tesymanniana Endangered and  Gonystylus bancanus vulnerable, hence they should  be protected.
SERTULUM DIPTEROCARPACEARUM MALAYENSIUM-VI D. F. VAN SLOOTEN
REINWARDTIA Vol 3, No 3 (1956): vol.3 no.3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v3i3.985

Abstract

The genus Balanocarpus has been regarded as distinct by reason of its calyx lobes, which do not exceed the wooden nut but which enclose the very base of it,forming a five-lobed wooden cup by the equally though slightly enlarged strongly imbricate segments of the flowering calyx.Symington has called particular attention to the fact that it seemed to lack natural generic characters,viz.satisfactory and sharply marked distinctions from other groups, as was already superficially realised by his predecessorsIn agreement with earlier suggestions by Symington, Balanocarpus is.given up,it being an artificial genus.Many of its species are referable to Shorea.Of the latter,12 species are treated,7 of which are described as new.Editor's Note.-Dr D. F. van Slooten was steadily continuing his revision of the Dipterocarpaceae when his untimely death put a stop to this most useful and painstaking task. During the last few years of his life I had the privilege to be consulted by Dr van Slooten regarding certain aspects of his work and this has made me somewhat familiar with the present paper and some of its problems. As this valuable contribution was not yet ready for the press, I ventured to put it into a definite shape to make it available rather than to leave it unpublished. Therefore, the errors that it may contain are wholly my own responsibility.-M. A. Donk.
TYPIFICATION OF TECTARIA PARADOXA (POLYPODIACEAE SUB-FAM. TECTARIOIDEAE) Jaideep Mazumdar
REINWARDTIA Vol 16, No 2 (2017): Vol 16 No. 2
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v16i2.3383

Abstract

MAZUMDAR, J. 2017. Typification of Tectaria paradoxa (Polypodiaceae subfam. Tectarioideae). Reinwardtia 16(2): 93-95. — Aspidium paradoxum has not yet been lectotypified, because the original material is ambiguous. A specimen from the collections of A. Fée, the author of the species, was located in the herbarium of Montpellier (MPU), which is here designated as the lectotype for this species. It is now known as Tectaria paradoxa, a fern species widely distributed across tropical Asia.
A REVISION OF MALESIAN GIGANTOCHLOA (POACEAE - BAMBUSOIDEAE) Elizabeth A. widjaja
REINWARDTIA Vol 10, No 3 (1987): vol. 10 No.3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v10i3.274

Abstract

Eighteen species of Gigantochloa are recognized from the Malesian area, of which ten species are wild and the rest are known only in cultivation. Besides morphological and anatomical evidences, data derived from chemotaxonomical analyses are also utilized in the systematic study of these species. A new combination (G. pseudoarundinacea) and four new species (G. achmadii, G. atroviolacea, G. manggong and G. pruriens) are proposed. Moreover a doubtful species (G. heteroclada) is also mentioned. Full illustrated descriptions, complete list of synonymy and typification aa well as sundry notes for each species treated are presented. Keys to all species and varieties recognized (based on the inflorescence and vegetative characters) are given and an index of all specimens examined is also appended.
A REVISION OF PLETHIANDRA (MBLASTOMATACEAE) M. P. NAYAR
REINWARDTIA Vol 9, No 1 (1974): Vol.9 no.1
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v9i1.905

Abstract

Seven species are described and a key to the species is presented.The genus is recorded foe the first time from Central Sumatra and this record is an extension of its generic distribution,known previously from Borneo and Malaya. Plethiandra acaminata Merr.and Plethiandra sahebii Burkill are reduced to synonymy and the following new com- binations are proposed: Plethiandra robusta (Cogn.)Nayar,Plethiandra seesiliflora (Cogn.) Merr. var.sessilis (Stapf) Nayar.
ON GENERIC TYPE SPECIES INDICATED BY MISAPPLIED NAMES M. A. DONK
REINWARDTIA Vol 1, No 4 (1952): vol.1 no.4
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v1i4.1046

Abstract

When the type method was introduced in the "International Rules of Botanical Nomenclature," it was stated that "a nomenclatural type is that constituent element to which the name of a group is permanently attached" and, further, that "the type of ..a generic name is a species and that of a species ..is usually a specimen or preparation. In some species, however, the type is a description or figure given by a previous 1 author" (Art. 18).No doubt, the type of a generic name is a species and that of a specific name a specimen (or its substitute). A species may be variously interpreted as to its limits; it may be narrowly or broadly conceived. It may receive a name, but it remains a species even if it has no name. It frequently occurs that a specific name is misapplied to a quite different species. Hence it is also evident that a species and a specific name are two intrinsically different notions, not at all identical and interchangeable. As quoted above, Art. 18 positively says that the type of a generic name is a species and does not refer to specific names. I believe this article really states what it wanted to convey in this respect, and is not an instance of unfortunate wording. A species comprises a vast number of 'individuals plants' and of these some are preserved often only in part, or are subject to taxonomic study without preservation,and represent the 'specimens' of the Rules; when the species is given a name, one of these is or afterwards becomes the 'type specimen.' Thus a (type) species and a (type) specimen are different notions. In the binomial system a specific name is a combination of two words. The first part, or generic appellation, stands for a generic description,2 the second part, or specific epithet, for a specific description : a specific name roots in two different descriptions.Far more often than not these two are published on different occasions by different authors.
NOTES ON BOTHRIOCHLOA KUNTZE (GRAMINEAE: ANDROPOGONEAE) IN MALESIA Alex Sumadijaya; Jan Frits Veldkamp
REINWARDTIA Vol 12, No 5 (2009): Vol. 12, No. 5
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v12i5.78

Abstract

SUMADIJAYA, A. & VELDKAMP, J.F. 2009. Notes on Bothriochloa Kuntze (Gramineae: Andropogoneae) in Malesia. Reinwardtia 12(5): 415 – 417. — The note is preliminary part for studies of Bothriochloa Kuntze in Malesia. Special caution should be given to Bothriochloa intermedia (R. Br.) A. Camus, now B. bladhii (Retz.) S.T. Blake, because of the variation, synonyms, and natural hybridization to generic level.

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