ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 491. 
Sabah, Lahad Datu, Ulu Sungei Segamat, 16.i.1976, 
500 m. 
Riverside vegetation. 
Common rheophytic tree or bush to 5 m. tall; outer 
bark brown, smooth; the inner surface brown; under 
bark reddish; inner bark reddish; leaves dark shiny 
green above, paler below; flowers whitish; fruit 
brownish. 
Meliaceae - Aglaia 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Halesia 
P. F. Stevens et al. 662. 
Sabah, Ranau, Kinabalu National Park, Silam-Silam 
trail, 23.i.1976, 1630 m. 
Montane forest. 
Damp places, local; herb c. 25 cm. tall, the stem 
prostrate at the base; leaves mid green above, 
paler below; calyx, ovary and pedicels reddish; 
corolla purple. 
Rubiaceae - Acranthera atropella Stapf 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 665. 
Sabah, Ranau, Kinabalu National Park, Silam-Silam 
trail 23.i.1976, 1630 m. 
Montane forest. 
Local; leaves mid shiny green above with purple- 
red spots, paler below, unmarked; stems reddish; 
tepals white tinged pink; anthers yellow; fruit 
green. 
Begoniaceae - Begonia 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 686. 
Sabah, between Tuaran and Tamparuli, near Tuaran 
river, 25.i.1976, 10 m. 
Shrub 2 m. tall, with erect branches; leaves dark 
shiny green above, pale green below; calyx green; 
corolla white; anthers yellow; fruit green. 
Flowers sweetly scented. 
Rutaceae 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F e Stevens et al. 759. 
Papua New Guinea, Morobe Province, Markham Point, 
3.iii.1976, 518 m. 
Colline forest. 
Locally common, all individuals in flower; leaves 
mid shiny green above, paler below; calyx pale 
green; corolla pink at base, white at tips, anther 
whitish, the processes bright yellow. 
Melastomataceae - Medinilla 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 761. 
Papua New Guinea, Morobe Province, Markham Point, 
3.iii.1976, 518 m. 
Colline forest. 
Locally common pendulous epiphytic herb; stems 
yellowish; leaves bright shiny green; flowers 
yellow. Spirit material. 
Orchidaceae - Dendrobium 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 844. 
Papua New Guinea, Western Province, Rumginae Road 
8 km. from Kiunga, 12.iii.1976, 40 m. 
Forest on undulating ground. 
Tree c. 5m. tall, the branches pendulous; leaves 
dark shiny green above, slightly paler below; 
inflorescence yellow, scented. 
Euphorbiaceae - Aporusa 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 765. 
Papua New Guinea, Morobe Province, Markham Point 
3.iii.1976, 518 m. 
Colline forest. 
Tree e. 6m. tall; leaves bright shiny green above, 
paler and shiny below; flowers white, apart from 
yellow stigma. Spirit material. 
Guttiferae - Garcinia 
ARNOLD ARBORETUM, HARVARD UNIVERSITY 
Plants of Malesia 
P. F. Stevens et al. 945. 
Papua New Guinea, Morobe Province, near Lae, 2 km. 
beyond Sankwep turnoff, 23.iv.1976 
Well-drained forest, rather rocky 
Tree 5 m. tall; outer bark grayish brown; leaves 
mid shiny green above, paler below, fleshy; fruit 
green. 
Nyctaginaceae - Pisonia 
