REINWARDTIA_13-2_7Oct2010 RE IN W AR DT IA 13 (2) A JOURNAL ON TAXONOMIC BOTANY, PLANT SOCIOLOGY AND ECOLOGY ISSN 0034 – 365 X REINWARDTIA A JOURNAL ON TAXONOMIC BOTANY PLANT SOCIOLOGY AND ECOLOGY Vol. 13(2): 95 — 220, November 2, 2010 Chief Editor KARTINI KRAMADIBRATA Editors DEDY DARNAEDI TUKIRIN PARTOMIHARDJO JOENI SETIJO RAHAJOE TEGUH TRIONO MARLINA ARDIYANI EIZI SUZUKI JUN WEN Managing editors ELIZABETH A. WIDJAJA HIMMAH RUSTIAMI Secretary ENDANG TRI UTAMI Lay out DEDEN SUMIRAT HIDAYAT Ilustrators SUBARI WAHYU SANTOSO ANNE KUSUMAWATY Reviewers R. ABDULHADI, SANDY ATKINS, JULIE F. BARCELONA, TODD J. BARKMAN, NICO CELLINESE, MARK COODE, GUDRUN KADEREIT, ROGIER DE KOCK, N. FUKUOKA, KUSWATA KARTAWINATA, ARY P. KEIM, P. J. A. KESSLER, A. LATIFF–MOHAMAD, M. A. RIFAI, RUGAYAH, H. SOEDJITO, T. SETYAWATI, D. G. STONE, WAYNE TAKEUCHI, BENITO C. TAN, J. F. VELDKAMP, P. VAN WELZEN, H. WIRIADINATA, RUI-LIANG ZHU. Correspondence on editorial matters and subscriptions for Reinwardtia should be addressed to: HERBARIUM BOGORIENSE, BOTANY DIVISION, RESEARCH CENTER FOR BIOLOGY– LIPI, CIBINONG 16911, INDONESIA Email: reinwardtia@mail.lipi.go.id REINWARDTIA Vol 13, No 2, pp: 211 − 212 211 IMPATIENS MAMASENSIS (BALSAMINACEAE), A NEW SPECIES FROM WEST CELEBES, INDONESIA Received August 18, 2010; accepted September 16, 2010 NANDA UTAMI & HARRY WIRIADINATA Herbarium Bogoriense, Botany Division, Research Center for Biology-LIPI, Jln. Raya Jakarta-Bogor Km 46, Cibinong 16911. E-mail: utami_16002@yahoo.com ABSTRACT. UTAMI, N & WIRIADINATA H, 2010. Impatiens mamasensis (Balsaminaceae), a new species from West Celebes, Indonesia. Reinwardtia 13(2): 211–212. — Impatiens mamasensis Utami & Wiriad. (Balsaminaceae) is described as a new species. Key Words: Impatiens mamasensis, Balsaminaceae, new species, West Celebes, Indonesia. ABSTRAK UTAMI, N & WIRIADINATA H, 2010. Impatiens mamasensis (Balsaminaceae), sebuah jenis baru dari Sulawesi Barat, Indonesia. Reinwardtia 13(2): 211–212. — Impatiens mamasensis Utami & Wiriad. (Balsaminaceae) yang berasal dari Mamasa, Sulawesi Barat, Indonesia dipertelakan sebagai jenis baru. Kata kunci: Impatiens mamasensis, Balsaminaceae, jenis baru, Mamasa, Sulawesi Barat. INTRODUCTION Impatiens is one of the largest genera among the flowering plants, there are more than 850 species in the world of these annual or perennial herbs. They are usually found in wet areas and on small river banks in mainly mountainous forests in tropical Africa and South East Asia (India, China and Malesia), but they are never recorded for Australia, New Zealand or South America. Impatiens or Balsam usually grows in moist, shady areas, where generally quite a lot of light reaches the forest floor; this can be in primary and secondary forests, margin areas of river heads, along roads and path sides (Grey-Wilson, 1980). The genus Impatiens is present on almost all the islands of Indonesia. So far, 50 species have been recorded, of which there are 35 species on Sumatra (Grey-Wilson, 1989); 8 spp. on Java (Backer & Bakhuizen van den Brink f., 1963); a single species in the Lesser Sunda Island (Lombok) and in Kalimantan, and 2 spp. in Celebes. In order to revise the family Balsaminaceae for the flora of Indonesia, intensive collecting during recent years was carried out and several undescribed species are discovered. In this paper we add one new species from Mamasa, West Celebes, Impatiens mamasensis Utami & Wiriad., which is described below. Impatiens mamasensis Utami & Wiriad. spec. nov. – Figs. 1 & 2. I. platypetala L. affinis, sed foliis margine aristis, calcaratus et petala dorsala differt, alae 0.8 cm longa. Typus: Indonesia, West Celebes, Mamasa, 4 Sept. 2009, Harry Wiriadinata 13810 (Holotype BO), Herb up to 40 cm tall, stems erect, brownish, glabrous. Leaves opposite; lamina lanceolate, 3 – 5 by 0.7–1.5 cm, apex acute, base acute, margin finely aristate, lateral veins indistinct; petiole slender, 0.5–1 cm long with the stipule on the axil; stipule caducous. Inflorescences axillary, 1–or 2– flowered. Flowers white with a violet spot on the base of the two lateral united petals. Pedicel ca. 3 cm long, glabrous. Lateral sepals 2, ovate, ca. 0.4 by 0.2 cm long, green. Lower sepal navicular, ca. 0.5 by 0.2 cm, glabrous, with a very minute spur of ca. 0.01 cm. Dorsal petal cucullate, ca. 0.5 by 0.4 cm wide, white. Lateral united petals obcordate, ca. 0.8 by 0.3 cm, the upper of each pair ca. 0.5 by 0.3 cm; lower of each pair ca. 0.4 by 0.2 cm. Stamens 5. Ovary glabrous. Fruit a capsule, fusiform, ca. 0.8 by 0.2 cm diam., glabrous. Distribution: Endemic in Sulawesi. Additional specimen examined: Celebes: Mamasa, 1000 m, 1937, Monod de Froideville 258 (BO); Galoeng- REINWARDTIA 212 [VOL.13 Galoeng, 1913, Docters van Leeuwen 528 (BO). Habitat. Growing in mountain forest, near small river; ca. 1572 m a.s.l. Conservation status. Data Deficient (DD); only few specimen collected Phenology. Flowers in September. Etymology. The specific epithet refers to the collecting locality where this species was first recognized, Mamasa, West Celebes, Indonesia. Notes. Impatiens mamasensis Utami & Wiriad. is similar to Impatiens platypetala Lindl. in general appearance, but it differs in the spur and the dorsal petal shape. The spur in I. mamasensis is very minute and curves, while in I. platypetala the spur is long and filliform. The shape of the two dorsal petals is also quite different. The lateral united petals of I. mamasensis are much smaller than those of I. platypetala. ACKNOWLEDGEMENTS We would like to thank Prof. Dr. Peter van Welzen of the Netherlands Centre of Biodiversity Naturalis, for reviewing this manuscript. The second author also thanks the Research Centre for Biology, Indonesian Institute of Sciences for their support of this trip to Celebes. REFERENCES BACKER, C. A. & R. C. BAKHUIZEN VAN DEN BRINK f., 1963. Flora of Java 1. Noordhoff, Groningen. GREY-WILSON, C. 1989. A revision of Sumatran Impatiens. Studies on Balsaminaceae VII. Kew Bull. 44: 67-106. UTAMI, N. & WIRIADINATA, H. 2002. A new species of Impatiens (Balsaminaceae) from central Sulawesi. Blumea 47: 391-393. Fig. 1. Habit of Impatiens mamasensis Utami & Wiriad. Fig. 2. Floral organs of Impatiens mamasensis Utami & Wiriad. spec nov. a. Two pairs of lateral united petals. b. Two small lateral petals. c. Dorsal petal. d. Lower sepala and spur. a b c d INSTRUCTION TO AUTHORS Reinwardtia is a scientific journal on plant taxonomy, plant ecology, and ethnobotany. Manuscript intended for a publication should be written in English represent an article which has not been published in any other journal or proceedings. Every manuscript will be sent to two blind reviewers. Two printed copies (on A4 paper) of the manuscript of not more than 200 pages together with an electronic copy prepared on Word Processor computer program using Time New Romance letter type and saved in Rich Text File must be submitted. For the style of presentation, authors should follow the latest issue of Reinwardtia very closely. Title of the article should be followed by author’s name and mailing address in one-paragraphed English abstract of not more than 250 words. Keywords should be given below each abstract. On a separated paper, author(s) should send the preferred running title of the article submitted. Taxonomic identification key should be prepared using the aligned couplet type. Strict adherence to the International Code of Botanical Nomenclature is observed, so that taxonomic and nomenclatural novelties should be clearly shown. Latin description for new taxon proposed should be provided and the herbaria where the type specimens area deposited should be presented in the long form that is name of taxon, author’s name, year of publication, abbreviated journal or book title, volume, number and page. Map, line drawing illustration, or photograph preferably should be prepared in landscape presentation to occupy two columns. Illustration must be submitted as original art accompanying, but separated from the manuscript. On electronic copy, the illustration should be saved in jpg or gif format at least 350 pixels. Legends or illustration must be submitted separately at the end of the manuscript. Bibliography, list of literature cited or references follow the Harvard system. REINWARDTIA Vol. 13. No. 2. 2010 CONTENTS Page HARRY WIRIADINATA & RISMITA SARI. A new species of Rafflesia (Rafflesiaceae) from North Sumatra ………………………………………………………………………..……………….. 95 ARY P. KEIM. A new species of Freycinetia (Pandanaceae) from Papua New Guinea………………… 101 ROBERT GRADSTEIN et al. Bryophytes of Mount Patuha, West Java, Indonesia……………………... 107 ABDULROKHMAN KARTONEGORO & J. F. VELDKAMP. Revision of Dissochaeta (Melastomataceae) in Java, Indonesia………………………………………………………...…………… 125 NURSAHARA PASARIBU. Two new species of Freycinetia (Pandanaceae) from Sumatra, Indonesia………………………………………………………………………………………………….... 147 ARY P. KEIM. & M. RAHAYU. Pandanaceae of Sumbawa, West Nusa Tenggara, Indonesia................ 151 K. MAT-SALEH, RIDHA MAHYUNI, AGUS SUSATYA, J. F. VELDKAMP. Rafflesia lawangensis (Rafflesiaceae), a new species from Bukit Lawang, Gunung Leuser National Park, North Sumatra, Indonesia.............................................................................................................................. 159 J. F. VELDKAMP & R. M. K. SAUNDERS. Goniothalamus tripetalus (Lam.) Veldk. & R. M. K. Saunders (Annonaceae), comb. nov. .......................................................................................... 167 M. M. J. VAN BALGOOY. An updated survey of Malesian Seed Plants Families..................................... 171 NURHAIDAH IRIANY SINAGA. Two new species of Freycinetia (Pandanaceae) from Manokwari, West Papua ............................................................................................................................... 183 NURHAIDAH IRIANY SINAGA, RITA MEGIA, ALEX HARTANA & ARY PRIHARDHYANTO KEIM. The ecology and distribution of Freycinetia Gaud. (Pandanaceae; Freycinetoideae) in the Indonesian New Guinea................................................................................................................................ 189 EIZI SUZUKI. Tree flora on freshwater wet habitats in lowland of Borneo: Does wetness cool the sites.. 199 NANDA UTAMI & HARRY WIRIADINATA. Impatiens mamasensis (Balsaminaceae), a new Species from West Celebes, Indonesia.......................................................................................................... 211 M. ARDIYANI, A. D. POULSEN, P. SUKSATHAN, F. BORCHSENIUS. Marantaceae in Sulawesi..... 213 Reinwardtia is a LIPI acredited Journal (258/AU 1/P2MBI/05/2010) Herbarium Bogoriense Botany Division Research Centre for Biology – LIPI Cibinong, Indonesia 13_1-1 13_2-2 13_4-4 13_5-5 13_6-6 13_7-7