REINWARDTIA

A SYNOPSIS OF CALAMUS (ARECACEAE) IN SULAWESI

HIMMAH RUSTIAMI, Andrew Henderson — Tue, 19 Dec 2017 13:13:27 +0700

RUSTIAMI, H. & HENDERSON, A. 2017. A synopsis of Calamus (Arecaceae) in Sulawesi. Reinwardtia 16 (2): 49-63. - A synopsis of the rattan genus Calamus in the Indonesian island of Sulawesi is given. Twenty-three species are recognized, including two new species that are described and illustrated: Calamus posoanus and C. sandsii. Nomenclature, including designation of 17 lectotypes, is given for each species, as well as notes on distribution, habitat, vernacular names, specimens examined, uses, and systematics.

A NEW SPECIES OF APPENDICULA SECTION PODODESME (ORCHIDACEAE) FROM INDONESIA

Aninda Retno Utami Wibowo, Lina Susanti Juswara — Tue, 19 Dec 2017 13:13:29 +0700

WIBOWO, A.R.U. & JUSWARA, L.S. 2017. A new species of Appendicula section Pododesme (Orchidaceae) from Indonesia. Reinwardtia 16 (2): 65–71. - A new species, Appendicula cordata (sect. Pododesme) from eastern Indonesia, is described and illustrated. Its habit is similar to that of Appendicula infundibuliformis J. J. Sm., but it differs in having flowers with a cordate appendage and a lip reflexed to the right. An identification key to the species of Appendicula sect. Pododesme, a distribution map, photos and line drawing are also provided.

POA OPINATA (GRAMINEAE), A NEW SPECIES FROM G. BINAIYA, CERAM, MOLUCCAS, INDONESIA

VELDKAMP J.F. — Tue, 19 Dec 2017 13:13:29 +0700

VELDKAMP, J. F. 2017. Poa opinata (Gramineae), a new species from G. Binaiya, Ceram, Moluccas, Indonesia. Reinwardtia 16 (2): 73–75. — Poa species is described from Ceram, Moluccas and compared to Poa languidior from New Guinea.

PHYTOSOCIOLOGY OF A LOWER MONTANE FOREST ON MT. BATULANTEH, SUMBAWA, INDONESIA

Muhammad Mansur, Kuswata Kartawinata — Tue, 19 Dec 2017 13:13:29 +0700

MANSUR, M & KARTAWINATA, K. 2017. Phytosociology of a Lower Montane Forest on Mt. Batulanteh, Sumbawa, Indonesia. Reinwardtia 16 (2): 77-92. — While Indonesia’s forests are globally known for their high species diversity but many regions remain little known to investigate the tree community in a lower montane forest at Mt. Batulanteh in Sumbawa. We subjectively laid out plots of 1,800 m2 each, two in secondary forests and one in a disturbed primary forest. All stems over 5 cm diameters were measured and identified. In the plot of 0,54 hectare, we recorded 723 individuals, representing 78 species, 60 genera and 33 families. Estimated volume of boles was 183.2 m3/0.54 ha, biomass was 220.1 tons/0.54 ha, carbon stock was 110.0 tons/0.54 ha and CO2 sequestration was 403.1 ton/0.54 ha. The forest at Mt. Batulanteh is classified as Garcinia-Cryptocarya association consisting of Micromelum-Cinnamomum subassociation. Dipterocarpus-Calophyllum subassociation and Garcinia-Syzygium subassociation. Dominant species were Micromelum minutum (IV=27.24), Mallotus philippensis (IV=26.2), Cryptocarya ferrea (IV=24.71) and Cinnamomum burmanni (IV=23.81) in Plot 1, Dipterocarpus retusus (IV=77.4) and Calophyllum soulattri (IV=24.21) in Plot 2, and Garcinia celebica (IV=34.86) and Syzygium sp. 1 (IV=34.76) in Plot 3. Dipterocarpus retusus was unique of having restricted distribution. Fagaceae, typical family in montane forests, was absent. Shannon’s diversity index was low (H '= 1.61). It can be concluded that the plots do not constitute a representative of Mt. Batulanteh and the surrounding forests, but they were sufficient to provide an illustration of the forests locally. The diameter class distribution indicated that the forests were regenerating. They were developing secondary forest and regenerating disturbed primary forest; slow successions were in the process and could be enhancedby ecological restoration. Further botanical explorations in poorly known regions of Sumbawa should be intensified further.

TYPIFICATION OF TECTARIA PARADOXA (POLYPODIACEAE SUB-FAM. TECTARIOIDEAE)

Jaideep Mazumdar — Tue, 19 Dec 2017 13:13:30 +0700

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.

THE GENUS LASIANTHUS (RUBIACEAE) IN WAWONII ISLAND, SOUTHEAST SULAWESI, INDONESIA

T.Rugayah Rugayah, Siti Sunarti — Tue, 19 Dec 2017 13:13:30 +0700

RUGAYAH & SUNARTI, S. 2017. The genus Lasianthus (Rubiaceae) in Wawonii Island, Sountheast Sulawesi, Indonesia. Reinwardtia 16 (2): 97–101. — Recent botanical excursions carried out at Wawonii island, Southeast Sula-wesi yielded two Lasianthus novelties distinct from other Lasianthus species enumerated for Sulawesi. These two new species are described here as Lasianthus wawoniiensis Rugayah & Sunarti and L. macrobracteatus Rugayah & Sunarti. Descriptions and illustrations of the two new species are provided, including an identification key to all Lasianthus species occurring in the area.

DENDROBIUM TINUKARIENSIS, A NEW SPECIES OF SECTION CALYPTROCHILUS FROM THE MEKONGGA MOUNTAINS, SOUTHEAST SULAWESI, INDONESIA

Diah Sulistiarini, Daniel Potter, Peter O'Byrne — Tue, 19 Dec 2017 13:13:30 +0700

SULISTIARINI, D., POTTER, D. & O’BYRNE, P. 2017. Dendrobium tinukariensis, a new species of section Calyptrochilus from Mekongga Mountains, South East Sulawesi, Indonesia. Reinwardtia 16 (2): 103–106. — A new species of Dendrobium (Orchidaceae), D. tinukariensis is described and illustrated from Mekongga, Southeast Sulawesi, Indonesia. It belongs in Dendrobium sect. Calyptrochilus.

TRICHOTOSIA GABRIEL-ASEMIANA (ORCHIDACEAE), A NEW SPECIES FROM TAMBRAUW, WEST PAPUA PROVINCE, INDONESIA

Yasper Michael Mambrasar, ANDRÉ SCHUITEMAN — Tue, 19 Dec 2017 13:13:30 +0700

MAMBRASAR, Y. M. & SCHUITEMAN, A. 2017. A new species of Trichotosia (Orchidaceae: Epidendroideae: Podochileae) from Tambrauw, Papua New Guinea, Indonesia. Reinwardtia 16(2): 107-110. - Trichotosia gabriel-asemiana Mambrasar & Schuiteman. Its description and illustration was presented.