SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Details of a palynological record of Ulmus in North Sumatra extending from c. 15,700-c. 1,500 B.P. are presented.

Borassodendron (Palmae) in the Southeast Asian fossil pollen record

Ano: 1984

URL: http://www.repository.naturalis.nl/record/525249

Borassodendron machadonis pollen occurred throughout the Holocene pollen record of Nong Thale Song Hong, Thailand, until about 4000 BP. It was also present in one sample from Khok Phanom Di, Thailand, and in the Mahakam Delta, Kalimantan, records, but B. machadonis has not been reported from the modern flora of Kalimantan. Borassodendron machadonis pollen differs greatly from that of B. borneense, which is found on the island of Borneo.

Ulmus pollen at Sibisa Swamp, North Sumatra (Ulmaceae)

Palavras-chave: Borassodendron; Fossil pollen; Indonesia; Thailand.

Ano: 2000

URL: http://www.repository.naturalis.nl/record/525380

Ulmus pollen characterised by a four-pored morphology was reported from samples of various ages taken from the radiocarbon dated pollen sites of Pea Sim-sim and Tao Sipinggan and in one sample from the undated Pea Sijajap record (Maloney, 1984). All these sites are located on the Toba Plateau, south of Lake Toba, over 50 km away from the nearest existing sources (Touw & Van Steenis, 1968) of Ulmus lancaeafolia Roxb. ex Wall. Sibisa Swamp is situated east of Lake Toba, at 98°58'E, 2°33'N, near the tourist resort of Prapat and much closer to the Karo Highlands source. It is in an area of fresh-looking volcanic topography at an altitude of c. 1300 m. The site was discovered and cored by Flenley and Morley in 1972 (cf. Morley et al., 1973). They described...

That elm again! Ulmus at Pea Bullok, North Sumatra, and regional comparisons

Ano: 1985

URL: http://www.repository.naturalis.nl/record/526258

Details of a palynological record of Ulmus in North Sumatra extending from c. 21,250 B.P. are presented and compared with recent findings from Java and Sulawesi (Table 1).