A JOURNAL ON TAXONOMIC BOTANY PLANT SOCIOLOGY AND ECOLOGY REINWARDTIA Editors SOEDARSONO RISWAN MIEN A. RIFAI ELIZABETH A. WIDJAJA Published by HERBARIUM BOGORIENSE BALAI PENELITIAN DAN PENGEMBANGAN BOTANI PUSAT PENELITIAN DAN PENGEMBANGAN BIOLOGI - LIPI BOGOR, INDONESIA Reinwardtia Vol. 11, Part 3, 153 - 225 25 March 1998 10 I S S N 0 0 3 4 - 3 6 5 X REINWARDTIA Vol. 11, part 3, pp. 191 - 193 (1998) ADDITIONAL NOTES ON PLANCHONIA BREVISTIPITATA KUSW. (LECYTHIDACEAE) KUSWATA KARTAWINATA John D. & Catherine T. MacArthur Foundation, Chicago, IL 60603 & Field Museum Of Natural History, Chicago, IL 60605, USA ABSTRACT Planchonia brevistipitata Kusw. is re-described and Barringtonia belagaensis P. Ghantaranothai is reduced to a synonym of this species. ABSTRAK Planchonia brevistipitata Kusw. dipertelakan kembali dan Barringtonia belagaensis P. Chantaranothai dijadikan sinonim jenis tersebut. Planchonia brevistipitata Kusw. was based only on a single fruiting collection from Northeast Kalimantan, Indonesia. As more flowering and fruiting specimens are now available, I feel that it is appropriate to redescribe this species. The redescription was based on the specimens investigated at the Rijksherbarium Leiden, the Netherlands. The dupli- cates of these specimens were deposited in various herbaria, but were not seen. Barringtonia belagaensis P. Chantaranothai (Kew Bull.. 50 (4): 695- 697. 1995) has been reduced to a synonym., as its characters, particu- larly its fruits, agree with those of P. brevistipitata. Numerous seeds contained in each fruit distinguish Planchonia from Barringtonia, which has one-seeded fruit. I am grateful to Dr. Dan M. Martin, Director of World Environment and Resources Program, John D. & Catherine T. MacArthur Foundation for encouraging me to continue research in Malesian botany and Prof. Dr. P. Baas, the Director of the Rijks-herbarium and Hortus Botanicus, Leiden, the Netherlands, for allowing me to use the facilities and to study the specimens at the Rijksherbarium. 191 192 REINWARDTIA [VOL.11 PLANCHONIA BREVISTIPITATA Kuswata Kartawinata Bull. Bot. Surv. India 7: 179. 1965. Type: Amdjah 256 (BO, holo; L, iso), Northeast Kalimantan, Indonesia. Barringlonia belagaensis P. Chantaranothai, Kew Bull. 50(4): 695. 1995. Type: Othman et al. S43541 (K, holo; A, KEP, L, SAN , iso), Sarawak, Malaysia. Small tree up to 15 m tall, branchlets grayish brown, -5 mm in diam., finely grooved, leaf-scars conspicuous. Leaves obovate, elliptic to oblanceolate, papyraceous (4.-)8-25 x (2-)6 cm; base decurrent, margin serrulate, apex acuminate, acumen up to 2 cm long, slender, tip sharp; midrib strongly prominent beneath, prominulous above; lateral nerves (8-) 14-18 pairs, making an angle of ca. 60° with the midrib, prominent on the lower surface, prominulous above, arcuately and faintly anastomosing near the margin; reticulation dense, distinct beneath, faint above; petiole 5-10 mm. Raceme (l-)2-5 cm long, 2-3 mm thick, 7-9 flowered, pedicel 2-10 mm long, 1-3 mm thick. Calyx tube obconical, 8-10 mm long, base stipitate; lobe ovate, 3-6 x 3-8 mm, apex rounded; rim of disc about 2 mm high. Corolla obovate to oblong, 2.5—3.5 x 1—1.7 m, papyraceous, apex rounded, Staminal tube 5—10 mm long, stamens 5-8 cm,; anther oblong, 0.5 x 0.8 mm. Style up to 7 cm long, stigma capitate. Ovary 4-celled, up to 20 ovules per cell. Infructescence terminal, rachis up to 5 cm long, sometimes angular. Pedicel 3-10 mm long, 1-3 mm thick. Fruit globular to ovoid, 2-3 x 1.5-2 cm, crowned with persistent calyx and style (up to 7 cm long), base with 2-3 mm long neck, slightly ribbed, 4-celled, septa thin. Seed 4-11 in each cell, ovoid to pyramidal, slightly curved, tetragonous, sides concave, 7—9 x 3— 5 mm; seedcoat coriaceous, silvery brown, about 0.5 mm thick; embryo coiled covered by very thin membrane. ECOLOGY. Common in riverine forest and streamside on sandy and rocky soils (frequently growing together with Dipterocarpus oblongifo- lius), rheophytic zone and in low undulating terrain. FIELD NOTES. Low-spreading small tree up to 20 m tall, up to 8 cm in diameter, crown up to about 8 m in diameter, old leaves withering red. Outer bark smooth to flaky, brownish gray; inner bark up to 2.5 cm thick, pinkish to smooth brown, laminated. Sapwood soft, whitish, yellow to yellowish pink. Inflorescence, terminal, few to many-flowered, bracts distinct. Flowers white to pale green, with numerous stamens to 8 cm long, opening at night, young bud greenish. Fruits yellowish green to greenish. Specimens Examined - Borneo. Sabah, Danum Valley, St., May, C.E. Ridsdale 2039A (L); fl., fr., May, C.E. Ridsdale 2049 (L); Lahad Datu District, Sg. Danum, fr., Aug., P.F. Cockburn, SAN 85108 (L; duplicates at K, KEP, KLU, SAN, SAR, SIN, not seen ); Beaufort, northeast of Rayoh, fl., fr., June, Saikeh L. SAN 72168 (L; duplicates at A, K, SAR, SIN not seen); Beaufort district, Mile 70 Railway F. Res., Rayoh, fl., May, Dewol & Karim, SAN 77587 (L, duplicates at K, SAN, SAR, SING not seen); Sandakan, Tongod, Kinabatangan. River bank, fl., fr., Nov., W. Meijer SAN 23297 (SAN, L); Tongod, Kg. Ulu Menanam, alt.: 500 ft., fr., Dewol S & 1998 ] KUSWATA K.: Addditional notes on Planchonia brevistipitata Kusw. 193 Patrick L. SAN 89287 (L; d u p l i c a t e s at L, SAN, SAR not seen); T a w a u , Mile 27 Sepulot, L u a s o n g River b a n k , fr., J u l y , F. Krispinus SAN 89872 (L; duplicates at K, SAN, SAR not seen); T e n o m District, Mile 75.33, Beaufort Tenom rail Line, n e a r river P a d a s , fr., J u l y , Aban Gibot, SAN 64340 (L; d u p l i c a t e s at K, K E P , SAN not seen); T e n o m District, L u m a k u F o r e s t Reserve, mile 80, Pangi, fr., May, Francis Sadau SAN 50458 (L; d u p l i c a t e s at K, SAN not seen). S a r a w a k . B a r a m (IV Division), a r o u n d Long S e l a t o n g Lepo Ga', fl., fr., Aug., S.C. Chin 2887 (L; d u p l i c a t e at K L U not seen); B a r a m District, Sungei Tutoh, Lat. 4 N, Long 114 48' E, alt: below 200 ft., fr., Feb., Chew Wee-left CWL. 1071 (L; duplicate at K not seen), Ulu Sg. Belaga, 7 t h Division, Oct., Olhman et al. S. 43451 (L, isotype of B. belagaensis P. C h a n t a r a n o t h a i ; holotypes at K a n d isotypes at A, K E P , SAN not s e e n ) . X- < V > , CONTENTS Page RATNA WIDURI & PETER VAN WELZEN. A revision of the genus Cephalomappa (Euphorbiaceae) in Malesia 153 ALAKA PANDE & V.G. RAO. TWO new species of Sphaerulina from India 185 KUSWATA KARTAWINATA. Additional notes on Planckonia brevistipitata Kusw. (Lecythidaceae) 191 A.J.G.H. KOSTERMANS. The Burmese Cimiamomum (Lauracee) 195 RUGAYAH & W.J.J.O. DE WlLDE. New taxa in Malesian Cucurbitaceae.. 215 The Publication of this issue of Reinwardtia is assisted by a grant from the Faculty of Science, Osaka City University (Japan) to which an acknowledgement is gratefully made. Printed by 78 Cover depan Rein. vol 11, Part 3, 153-225_Page_20 tmapakbelkng