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Floribunda
Published by BRIN Publishing
ISSN : 02154706     EISSN : 24606944     DOI : https://doi.org/10.55981/floribunda
Core Subject :
Floribunda is published both in Bahasa Indonesia and English, covers wide range of plant diversity, Taxonomy and sistematics of Malesian flora particulary from Indonesia.
Arjuna Subject : -
Articles 42 Documents
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THE GENUS LOROPETALUM R.BR. EX RCHB. (HAMAMELIDACEAE) IN JAVA, INDONESIA Arifin Surya Dwipa Irsyam
Floribunda Vol. 8 No. 2 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2025.12891

Abstract

The Genus Loropetalum R.Br. ex Rchb. (Hamamelidaceae) in Java, Indonesia. — Loropetalum represents an additional genus of Hamamelidaceae recently introduced to Java. It is currently represented by a single species and variety on the island, namely L. chinense var. rubrum Yieh. This taxon has been cultivated as an ornamental plant by both horticulturists and plant enthusiasts in Java, owing to its striking red foliage and deep pink floral characteristics.  
COVER FLORIBUNDA Admin Floribunda
Floribunda Vol. 8 No. 1 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

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Abstract

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MARASMIUS TENUISSIMUS (AGARICALES, MARASMIACEAE): MARASMIOID THREAD BLIGHT DISEASE FROM SORONG, WEST PAPUA, INDONESIA Atik Retnowati; Anis Sri Lestari
Floribunda Vol. 8 No. 2 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2025.13529

Abstract

Marasmius tenuissimus is one of the marasmoid thread blight diseases that infects commercial, such as cacao and coffee, and non-commercial plants. The species is characterized by a medium fruiting body, an irregular convex to plano-convex pileus; remote, interwoven, and anastomosing lamellae; absence of stipe; Siccus-type broom cells of cheilocystidia and pileipellis. As part of an inventory of the genus Marasmius in Indonesia, this study aims to document the species diversity of the genus within the region. Field exploration was conducted in Sorong, followed by specimen drying, herbarium processing, and identification using both morphological and molecular analyses. Observation and phylogenetic analyses using nrDNA ITS highlighted the taxon placement of our new collected marasmioid species as M. tenuissimus and also provided the nucleotide sequence data which will be valuable for future study of fungal diversity in Indonesia.
MORPHOLOGICAL VARIATION IN ASPLENIUM TRUNCATUM BLUME (ASPLENIACEAE) Winda Nurul Fajriah; Agung Sedayu; Wenni Setyo Lestari; Wita Wardani
Floribunda Vol. 8 No. 2 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2025.14466

Abstract

Asplenium   truncatum Blume exhibits considerable morphological variation across its distribution in Malesia, which cause the name is used interchangeably with closely related taxa i.e. A. caudatum. This study examines the range of morphological characters within populations of A. truncatum specimens and evaluates diagnostic value of them. We used 91 herbarium specimens for 12 quantitative character measurements and three qualitative characters scoring that included in the morphometric analyses. Variations were found in frond architecture, pinna shape, and scale characters, which historically led to the recognition of morphotypes or varieties, including var. lobulatum and var. crenulatum. Principal Component Analysis (PCA) revealed that the variation among these  morphotypes forms a continuous spectrum without clear morphological boundaries. These results indicate that the observed diversity represents phenotypic plasticity within a single species rather than distinct taxonomic entities.  
EXPANDING THE FLORA OF JAVA: AN ADDITIONAL ORNAMENTAL COLEUS (LAMIACEAE) SPECIES Arifin Surya Dwipa Irsyam
Floribunda Vol. 8 No. 2 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2025.14638

Abstract

Coleus Lour. is an Old-World genus widely cultivated as ornamental and medicinal plants, with seven species previously documented from Java. However, the regional flora continues to change due to ongoing horticultural introductions, and recently introduced cultivated taxa remain under-documented. This study aims to document the occurrence of an additional ornamental Coleus species in Java and to clarify its taxonomic and floristic significance. Field observations and specimen collections were conducted in West Java, and taxonomic identification was based on morphological examination and comparison with relevant literature. As a result, Coleus prostratus (Gürke) A.J.Paton is recorded here for the first time from Java, where it occurs exclusively in cultivated settings as a hanging ornamental plant. The species is readily distinguishable from other Coleus taxa in Java by its prostrate habit, small fleshy leaves, and characteristic vegetative morphology. This record increases the documented diversity of Coleus in Java and highlights the importance of documenting cultivated ornamental plants as part of contemporary floristic inventories, particularly in relation to future assessments of naturalization and biodiversity change.  
COVER FLORIBUNDA Admin Floribunda
Floribunda Vol. 8 No. 2 (2025): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

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Abstract

Updated Diversity of Costaceae in Java with the First Record of Monocostus K.Schum. Muhammad Hisyam Baidlowi; Arifin Surya Dwipa Irsyam; Muhammad Rifqi Hariri
Floribunda Vol. 9 No. 1 (2026): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2026.15431

Abstract

Muhammad Hisyam Baidlowi, Arifin Surya Dwipa Irsyam, Muhammad Rifqi Hariri 2026. Updated diversity of Costaceae in Java with the first record of Monocostus K.Schum. Floribunda 9(1) 9—13 — Costaceae Nakai comprises eight genera distributed throughout tropical regions, but in Java the family was previously represented by only two genera, Costus and Hellenia. Recent studies have updated the diversity of Costaceae in Java, particularly within Costus, by documenting newly cultivated, naturalized, and escaped introduced species based on field surveys, herbarium studies, and morphological analyses, increasing the number of recorded species to 15. Field investigations conducted between 2023 and 2025 further revealed the occurrence of an additional genus, Monocostus, in Java, currently known only from cultivated specimens. This finding expands the generic representation of Costaceae on the island and provides an important baseline for monitoring introduced ornamental taxa, assessing their potential for naturalization, and supporting  future floristic, taxonomic, and conservation studies.  
A New Verified and Vouchered Record of Torenia polygonoides (Linderniaceae) from Kalimantan Septian; Arifin Surya Dwipa Irsyam
Floribunda Vol. 9 No. 1 (2026): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2026.15840

Abstract

Septian, Arifin Surya Dwipa Irsyam 2026. A new verified and vouchered record of Torenia polygonoides (Linderniaceae) from Kalimantan. Floribunda 9(1) 1—8 — This study reports the occurrence of Torenia polygonoides Benth. (Linderniaceae) in Kalimantan, based on fieldwork conducted in West Kalimantan in March 2026. This represents the first verified and vouchered record of the species from the island and extends its known distribution within Malesia. In Indonesia, the species was previously recorded only from Sumatra and New Guinea, although it has also been reported from Kalimantan in ethnobotanical studies lacking voucher-based confirmation. This record also highlights the limited state of taxonomic knowledge of Torenia in Kalimantan and provides baseline data for future taxonomic and biodiversity studies. It further underscores the importance of continued botanical exploration, particularly in under-explored habitats and among understudied taxa in the region.  
A Vouchered Record of Rhipsalis baccifera (J.S.Muell.) Stearn (Cactaceae) in Bandung, Indonesia Arifin Surya Dwipa Irsyam
Floribunda Vol. 9 No. 1 (2026): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2026.15868

Abstract

Arifin Surya Dwipa Irsyam 2026. A vouchered record of Rhipsalis baccifera (J.S.Muell.) Stearn (Cactaceae) in Bandung, Indonesia. Floribunda 9(1) 14—21 — This study provides the first   vouchered record of Rhipsalis baccifera in Bandung, West Java, Indonesia, based on herbarium  specimens housed at Herbarium Bandungense. Previous reports lacked voucher specimens and complete metadata, limiting independent verification. Herbarium examination combined with targeted fieldwork in urban habitats yielded well-documented specimens following standard procedures.  A  historical specimen collected in 1951, together with recent collections, indicates long-term persistence of the species in the region and suggests that it is well established. The Bandung population is here assigned to the subspecies level, providing improved taxonomic resolution for previously reported records. These findings establish a reliable basis for species verification and contribute to a better understanding of the species’ distribution in Malesia, with implications for long-distance dispersal and the naturalization of non-native epiphytic species in urban tropical  environments.  
DNA Barcoding and Taxonomic Placement of Alocasia flemingiana Yuzammi & A. Hay Based on trnL-trnF Intergenic Spacer Region Siti Latipah; Miftahul Jannah; Muhammad Rifqi Hariri
Floribunda Vol. 9 No. 1 (2026): Floribunda
Publisher : Penerbit BRIN (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/floribunda.2026.15889

Abstract

Siti Latipah, Miftahul Jannah & Muhammad Rifqi Hariri 2026. DNA Barcoding and Taxonomic Placement of Alocasia flemingiana Yuzammi & A. Hay based on trnL-trnF intergenic spacer region. Floribunda 9(1) 27—33 — Alocasia flemingiana Yuzammi & A. Hay is a species of the family Araceae for which molecular data remain limited. The high morphological similarity among Alocasia species often complicates species identification and taxonomic classification. This research tended to characterize the trnL-trnF intergenic spacer (IGS) sequence of A. flemingiana and examine its phylogenetic position employing DNA barcoding. A 450 bp trnL-trnF IGS sequence was successfully amplified and examined. BLAST analysis revealed high sequence similarity with several Alocasia species, with query coverage ranging from 98% to 100%, E-values of 0.0, and percent identities of 99.12% to 100%. The highest similarity was observed with Alocasia sp. PSA280 (100% identity, 98% query coverage), while several accessions of A. longiloba also showed high sequence similarity (>99% identity). Phylogenetic reconstruction using the Maximum Likelihood method under the Tamura 3-parameter model with 1,000 bootstrap replicates placed A. flemingiana in a well-supported clade with A. longiloba (ON777914.1), supported by a bootstrap value of 92%. These results demonstrate that the trnL-trnF IGS region is useful for species identification and phylogenetic inference in Alocasia, while providing molecular evidence supporting the taxonomic placement of A. flemingiana. This study contributes to the molecular characterization of A. flemingiana and highlights the value of DNA barcoding in plant taxonomy and biodiversity research.  

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