REINWARDTIA A JOURNAL ON TAXONOMIC BOTANY, PLANT SOCIOLOGY AND ECOLOGY Vol. 14(2): 249-324, December 23, 2015 Chief Editor Kartini Kramadibrata (Mycologist, Herbarium Bogoriense, Indonesia) Editors Dedy Darnaedi (Taxonomist, Herbarium Bogoriense, Indonesia) TukirinPartomihardjo (Ecologist, Herbarium Bogoriense, Indonesia) Joeni Setijo Rahajoe (Ecologist, Herbarium Bogoriense, Indonesia) Marlina Ardiyani (Taxonomist, Herbarium Bogoriense, Indonesia) Topik Hidayat (Taxonomist, Indonesia University of Education, Indonesia) Eizi Suzuki (Ecologist, Kagoshima University, Japan) Jun Wen (Taxonomist, Smithsonian Natural History Museum, USA) Managing Editor Himmah Rustiami (Taxonomist, Herbarium Bogoriense, Indonesia) Lulut Dwi Sulistyaningsih (Taxonomist, Herbarium Bogoriense, Indonesia) Secretary Endang Tri Utami Layout Medi Sutiyatno Illustrators Subari Wahyudi Santoso Anne Kusumawaty Correspondence on editorial matters and subscriptions for Reinwardtia should be addressed to: HERBARIUM BOGORIENSE, BOTANY DIVISION, RESEARCH CENTER FOR BIOLOGY-INDONESIAN INSTITUTE OF SCIENCES CIBINONG SCIENCE CENTER, JLN. RAYA JAKARTA - BOGOR KM 46, CIBINONG 16911, P.O. Box 25 CIBINONG INDONESIA PHONE (+62) 21 8765066; Fax (+62) 21 8765062 E-MAIL: reinwardtia@mail.lipi.go.id http://e-journal.biologi.lipi.go.id/index.php/reinwardtia A C B D E G F H Cover images: Zingiber engganoensis Ardiyani. A. Habit B. Leafy shoot and the inflorescence showing rhizomes, roots and root-tuber C. Leaves D. Ligule and swollen petiole E. Dissection of inflorescence showing fruit F. Spike and flowers G. Dissection of flowers and fruits showing bract, bracteole, two lateral staminodes, two petal lobes, labellum, and the four appendages of the anther H. Flower. Source of materials: E190 (BO). Photo credits: B, C, D by Arief Supnatna. A, E, F, G, H by Marlina Ardiyani. The Editors would like to thank all reviewers of volume 14(2): Abdul Latiff Mohamad, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, Malaysia Abdulrokhman Kartonegoro - Herbarium Bogoriense, Bogor, Indonesia Agus Susatya - University of Bengkulu, Bengkulu, Indonesia Axel D. Poulsen - Royal Botanic Garden Edinburgh, Edinburgh, Scotland, UK Campbell O. Webb - Arnold Arboretum, University of Harvard, USA Edwino Fernando - Dept. of Forest Biological Sciences, University of the Philippines, Los Baños, Philippines Fabian Brambach - Dept. of Ecology & Ecosystem Research, Georg August University, Gottingen, Germany John Mood - Lyon Arboretum, University of Hawaii, USA Kuswata Kartawinata - Integrative Research Center, The Field Museum, Chicago, USA Mark Newman - Royal Botanic Garden Edinburgh, Edinburgh, Scotland, UK Martin Dancak - Faculty of Science, Palacky University, Czech Republic Mien A. Rifai - Akademi Ilmu Pengetahuan Indonesia (AIPI) Ridha Mahyuni - Herbarium Bogoriense, Bogor, Indonesia REINWARDTIA Vol 14, No 2, pp: 323 ‒ 324 323 DESCRIPTION Gymnopetalum pectinatum (W. J . de Wilde & Duyfjes) Rugayah, stat. & comb. nov. Gymnopetalum integrifolium (Roxb.) Kurz var. pectina- tum W. J. de Wilde & Duyfjes, Blumea 51, 2 (2006) 287, fig. 4. — Gymnopetalum scabrum (Lour.) W. J. de Wilde & Duyfjes var. pectinatum (W.J.de Wilde & Duyfjes) W. J. de Wilde & Duyfjes, Reinwardtia 12 (2008a) 268; Fl. Males., Ser. 1, 19 (2010) 78, f. 24: a,b.; 26: b, bˈ; pl. 10: c. — Type: de W ilde & Duyfjes 21692 (L), male fl., E Java. Climbing or creeping herbs, rooting at the nodes, to 4 m long; stem sparsely and densely grey-brown hairy; monoecious. Probract absent or possibly in- conspicuous and caducous. Tendrils sparsely hairy, simple or 2-branched near the base. Leaves: petiole 2–4 cm long; lamina subcoriaceous, slightly bullate, scabrous and sparsely hairy above, more densely hairy below, sparsely black-dotted, broadly ovate, circular or 3- or 5-angular, or reniform in outline, 2 –7 cm long, base deeply cordate, margin subentire or dentate-mucronate, apex broadly rounded to acute, mucronate; cystoliths in older leaves present above. Male flowers solitary or in erect bracteate racemes 4–15 cm long; bracts hairy, minutely black -dotted, ± obtriangular, 15–20 mm long, sessile, INTRODUCTION Gymnopetalum Arn. in Malesia and Thailand has recently received much attention in connection with the flora treatments of the Cucurbitaceae for both areas (de Wilde & Duyfjes, 2006; 2008a; 2008b; 2010). With the description of Gymnopetalum in- tegrifolium var. pectinatum (2006) only two collec- tions were known, from a locality in E Java, near Pasuruan, at sea level, viz. de Wilde & Duyfjes 21692 (flowers), 21693 (fruits), both in L. Recently a third collection in BO became known, from distant Sumbawa, Nakano & Kahono 99111, containing male flowers and fruit, collected at Alas, 5–10 m alt., beside the road near the sea, dated June 26, 1999. This latter specimen, matching the E Java collec- tions in the male bract and fruit and seed details, indicated that a good species rather than a variety is concerned. This raises the number of Malesian Gymnopetalum species from 3 to 4, and with the Sri Lanka species G. tubiflorum to 5 for the genus as a whole. For clarity a key to the species, alternative to that presented in Flora Malesiana and a species de- scription compatible to those in Flora Malesiana (de Wilde & Duyfjes, 2010) is presented. GYMNOPETALUM PECTINATUM (W. J. DE WILDE & DUYFJES) RUGAYAH: RANK OF SPECIES FOR GY MNOPETALUM SCABRUM VAR. PECTINA- TUM (CUCURBITACEAE) Received September 14, 2015; accepted October 02, 2015 W. J. J. O. DE WILDE & B. E. E. DUYFJES Naturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands. E-mail:b.wilde- duyfjes@naturalis.nl RUGAYAH Herbarium Bogoriense, Botany Division, Research Center for Biology-LIPI, Cibinong Science Center, Jln. Raya Jakarta-Bogor Km. 46, Cibinong 16911, Bogor, Indonesia. E-mail: titikrugayah@yahoo.com ABSTRACT DE WILDE, W. J. J. O., DUYFJES, B. E. E. & RUGAYAH. 2015. Gymnopetalum pectinatum (W. J. De Wilde & Duyfjes) Rugayah: rank of species for Gymnopetalum scabrum var. pectinatum ( Cucurbitaceae). Reinwardtia 14(2): 323 ‒ 324. — With Gymnopetalum pectinatum (W.J.de Wilde & Duyfjes) Rugayah, stat. nov.& comb. nov., a coastal species, four species in Gymnopetalum are now recognized in Malesia. Key words: Cucurbitaceae, Gymnopetalum, new species, SE Asia. ABSTRAK DE WILDE, W. J. J. O., DUYFJES, B. E. E. & RUGAYAH. 2015. Gymnopetalum pectinatum (W. J. De Wilde & Duyfjes) Rugayah: tingkat jenis Gymnopetalum scabrum var. pectinatum (Cucurbitaceae). Reinwardtia 14(2): 323 ‒ 324. — Adanya perubahan status Gymnopetalum scabrum var. pectinatum sebagai varietas Gymnopetalum menjadi jenis tersendiri Gymnopetalum pectinatum (W. J. de Wilde & Duyfjes) Rugayah, menambah jumlah jenis Gymnopetalum yang ada di Malesia menjadi empat jenis. Kata kunci: Asia Tenggara, Cucurbitaceae, Gymnopetalum, jenis baru. REINWARDTIA Vol 14, No 2, pp: 323 � 324 323 DESCRIPTION Gymnopetalum pectinatum (W. J . de Wilde & Duyfjes) Rugayah, stat. & comb. nov. Gymnopetalum integrifolium (Roxb.) Kurz var. pectina- tum W. J. de Wilde & Duyfjes, Blumea 51, 2 (2006) 287, fig. 4. — Gymnopetalum scabrum (Lour.) W. J. de Wilde & Duyfjes var. pectinatum (W.J.de Wilde & Duyfjes) W. J. de Wilde & Duyfjes, Reinwardtia 12 (2008a) 268; Fl. Males., Ser. 1, 19 (2010) 78, f. 24: a,b.; 26: b, b�; pl. 10: c. — Type: de W ilde & Duyfjes 21692 (L), male fl., E Java. Climbing or creeping herbs, rooting at the nodes, to 4 m long; stem sparsely and densely grey-brown hairy; monoecious. Probract absent or possibly in- conspicuous and caducous. Tendrils sparsely hairy, simple or 2-branched near the base. Leaves: petiole 2–4 cm long; lamina subcoriaceous, slightly bullate, scabrous and sparsely hairy above, more densely hairy below, sparsely black-dotted, broadly ovate, circular or 3- or 5-angular, or reniform in outline, 2 –7 cm long, base deeply cordate, margin subentire or dentate-mucronate, apex broadly rounded to acute, mucronate; cystoliths in older leaves present above. Male flowers solitary or in erect bracteate racemes 4–15 cm long; bracts hairy, minutely black -dotted, ± obtriangular, 15–20 mm long, sessile, INTRODUCTION Gymnopetalum Arn. in Malesia and Thailand has recently received much attention in connection with the flora treatments of the Cucurbitaceae for both areas (de Wilde & Duyfjes, 2006; 2008a; 2008b; 2010). With the description of Gymnopetalum in- tegrifolium var. pectinatum (2006) only two collec- tions were known, from a locality in E Java, near Pasuruan, at sea level, viz. de Wilde & Duyfjes 21692 (flowers), 21693 (fruits), both in L. Recently a third collection in BO became known, from distant Sumbawa, Nakano & Kahono 99111, containing male flowers and fruit, collected at Alas, 5–10 m alt., beside the road near the sea, dated June 26, 1999. This latter specimen, matching the E Java collec- tions in the male bract and fruit and seed details, indicated that a good species rather than a variety is concerned. This raises the number of Malesian Gymnopetalum species from 3 to 4, and with the Sri Lanka species G. tubiflorum to 5 for the genus as a whole. For clarity a key to the species, alternative to that presented in Flora Malesiana and a species de- scription compatible to those in Flora Malesiana (de Wilde & Duyfjes, 2010) is presented. GYMNOPETALUM PECTINATUM (W. J. DE WILDE & DUYFJES) RUGAYAH: RANK OF SPECIES FOR GY MNOPETALUM SCABRUM VAR. PECTINA- TUM (CUCURBITACEAE) Received September 14, 2015; accepted October 02, 2015 W. J. J. O. DE WILDE & B. E. E. DUYFJES Naturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands. E-mail:b.wilde- duyfjes@naturalis.nl RUGAYAH Herbarium Bogoriense, Botany Division, Research Center for Biology-LIPI, Cibinong Science Center, Jln. Raya Jakarta-Bogor Km. 46, Cibinong 16911, Bogor, Indonesia. E-mail: titikrugayah@yahoo.com ABSTRACT DE WILDE, W. J. J. O., DUYFJES, B. E. E. & RUGAYAH. 2015. Gymnopetalum pectinatum (W. J. De Wilde & Duyfjes) Rugayah: rank of species for Gymnopetalum scabrum var. pectinatum ( Cucurbitaceae). Reinwardtia 14(2): 323 � 324. — With Gymnopetalum pectinatum (W. J. de Wilde & Duyfjes) Rugayah, stat. nov.& comb. nov., a coastal species, four species in Gymnopetalum are now recognized in Malesia. Key words: Cucurbitaceae, Gymnopetalum, new species, SE Asia. ABSTRAK DE WILDE, W. J. J. O., DUYFJES, B. E. E. & RUGAYAH. 2015. Gymnopetalum pectinatum (W. J. De Wilde & Duyfjes) Rugayah: tingkat jenis Gymnopetalum scabrum var. pectinatum (Cucurbitaceae). Reinwardtia 14(2): 323 � 324. — Adanya perubahan status Gymnopetalum scabrum var. pectinatum sebagai varietas Gymnopetalum menjadi jenis tersendiri Gymnopetalum pectinatum (W. J. de Wilde & Duyfjes) Rugayah, menambah jumlah jenis Gymnopetalum yang ada di Malesia menjadi empat jenis. Kata kunci: Asia Tenggara, Cucurbitaceae, Gymnopetalum, jenis baru. REINWARDTIA 324 [VOL.14 upper margin regularly, finely, densely laciniate, the lobes linear, 2–4 mm long; flowers sparsely or densely brown pubescent, hairs ± curly, 2–3 mm long; pedicel 50–80 mm long in solitary flowers, 10 (–15) mm long in the racemes, persistent, at apex articulate; receptacle tube ca. 25 mm long, ca. 6 mm wide, narrowed below insertion of stamens about the middle; sepals narrowly triangular to linear, en- tire, acute, 3–4 mm long; petals at anthesis not seen; stamens, synandrium and disc-segments not investi- gated. Female flowers solitary on the node or soli- tary at base of the male raceme; bracts ca. 20 × 25 mm, finely laciniate; sepals linear, ca. 8 × 1 mm; ovary densely hairy, ca. 15 mm long. Fruits orange- red, sparsely hairy, rather juicy, ellipsoid, 4–4.5 × ca. 2.8 cm, base and apex obtuse, not ribbed; fruit- ing pedicel hairy, 1–3 cm long. Seeds numerous, brown or blackish, in green pulp, ellipsoid-oblong, ± compressed, 7–8 × 3–3.5 mm, faces slightly raised, somewhat rugose, margin broad, rounded. Distribution. E J ava, W Sumbawa. Ecology. Coastal flat-land on clayey soil; low alti- tudes. Notes. Fully open male flower s ar e still un- known. As suggested with the original description of the variety the overall characters, i.e. in the general habit of the plant, this species seems inter- mediate between Gymnopetalum scabrum (with globose fruit, not ribbed) and G. chinense (with ellipsoid fruit, ribbed). Possibly the present Gymnopetalum pectinatum is a coastal species as all three collections are from near the sea. The probract is possibly absent in Gymnopetalum pec- tinatum. In Gymnopetalum scabrum it is 1–2.5 mm long or absent, in G. chinense minute, caducous, or absent. In Flora Malesiana (de Wilde & Duyfjes, 2010) the probract of G. scabrum (G. integrifolia) erroneously was indicated as to 2.5 cm long. In Gymnopetalum orientale W. J. de Wilde & Duyfjes the probract is absent or various in size, (ob)ovate, to 1 cm long. Key to the Malesian species of Gymnopetalum ACKNOWLEDGEMENTS The help of the botanical garden at Purwodadi for facilitating a cucurbit-collecting fieldtrip to the area in E Java where Gymnopetalum pectinatum was found is acknowledged. We would like to thank the curators of BO and L for allowing us to study their holdings. REFERENCES DE WILDE, W. J. J. O. & DUYFJES, B. E. E. 2006. Review of the genus Gymnopetalum (Cucurbitaceae). Blumea 51: 281−296. DE WILDE, W. J. J. O & DUYFJES, B. E. E. 2008a. Miscellaneous South East Asian Cucurbit news. Reinwardtia 12: 267−274. DE WILDE, W. J. J. O. & DUYFJES, B. E. E. 2008b. Cucurbitaceae. In: T. Santisuk & K. Larsen (Eds.), Flora of Thailand 9: 411−546. Niran Hetrakul, Prachachon Co. Ltd., Thailand. DE WILDE, W. J. J. O. & DUYFJES, B. E. E. 2010. Cucurbitaceae. Fl. Males. Ser. 1, Spermat. 19: 1−333. Foundation Flora Malesiana. 1 a. Leaves densely coarsely hairy below …………….. 2 b. Leaves sparsely scabrous- pubescent below ………... 3 2 a. Male bract in raceme ir- regularly few lobed or in- cised. Fruit globose, gla- brescent …………………………. G. scabrum b. Male bract in the raceme with apex ± truncate, regu- larly finely laciniate. Fruit ellipsoid, sparsely hairy…… G. pectinatum 3 a. Flowers in the male ra- ceme with distinct pedicel. Fruit 2.5–5 mm long, 10- ribbed ……… G. chinense b. Flowers in the male ra- ceme (sub)sessile. Fruit 5– 6 cm long, unribbed .……... G. orientale . . . INSTRUCTION TO AUTHORS Scope. R einwardtia is a scientific ir r egular jour nal on plant taxonomy, plant ecology and ethnobotany published in December. Manuscript intended for a publication should be written in English. Titles. Titles should be br ief, infor mative and followed by author ’s name and mailing address in one- paragraphed. Abstract. English abstr act followed by Indonesian abstr act of not mor e than 250 wor ds. Keywor ds should be given below each abstract. Manuscript. Manuscr ipt is or iginal paper and r epr esent an ar ticle which has not been published in any other journal or proceedings. The manuscript of no more than 36 pages by using Times New Roman 11, MS Word for Windows of A4 with double spacing, submitted to the editor through . New paragraph should be indented in by 5 characters. For the style of presentation, authors should follow the latest issue of Reinwardtia very closely. Author(s) should send the preferred running title of the article submitted. Every manuscript will be sent to two blind reviewers. Identification key. Taxonomic identification key should be pr epar ed using the aligned couplet type. Nomenclature. Str ict adher ence to the Inter national Code of Botanical Nomenclatur e is obser ved, so that taxonomic and nomenclatural novelties should be clearly shown. English description for new taxon proposed should be provided and the herbaria where the type specimens area deposited should be presented. Name of taxon in taxonomic treatment 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/photograph. Map, line dr awing illustr ation, or photogr aph pr efer ably should be prepared in landscape presentation to occupy two columns. Illustration must be submitted as original art accompanying, but separated from the manuscript. 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. References. Bibliogr aphy, list of liter atur e cited or r efer ences follow the Har var d system as the following examples. Journal : KRAENZLIN, F. 1913. Cyrtandraceae novae Philippinenses I. Philipp. J. Sci. 8: 163–179. MAYER, V., MOLLER, M., PERRET, M. & WEBER, A. 2003. Phylogenetic position and generic differentiation of Epithemateae (Gesneriaceae) inferred from plastid DNA sequence data. American J. Bot. 90: 321–329. Proceedings :TEMU, S. T. 1995. Peranan tumbuhan dan ternak dalam upacara adat “Djoka Dju” pada suku Lio, Ende, Flores, Nusa Tenggara Timur. In: NASUTION, E. (Ed.). Prosiding Seminar dan Lokakarya Nasional Etnobotani II. LIPI & Perpustakaan Nasional: 263–268. (In Indonesian). SIMBOLON, H. & MIRMANTO, E. 2000. Checklist of plant species in the peat swamp forests of Central Kalimantan, Indonesia. In: IWAKUMA, T. et al. (Eds.) Proceedings of the International Symposium on: Tropical Peatlands. Pp.179-190. Book : RIDLEY, H. N. 1923. Flora of the Malay Peninsula 2. L. Reeve & Co. Ltd, London. Part of Book : BENTHAM, G. 1876. Gesneriaceae. In: BENTHAM, G. & HOOKER, J. D. Genera plantarum 2. Lovell Reeve & Co., London. Pp. 990–1025. Thesis : BAIRD, L. 2002. A Grammar of Kéo: An Austronesian language of East Nusantara. Australian National University, Canberra. [PhD. Thesis]. Website : http://www.nationaalherbarium.nl/fmcollectors/k/KostermansAJGH.htm). Accessed 15 February 2012. REINWARDTIA Author Agreement Form Title of article : Name of Author(s) : I/We hereby declare that:  My/Our manuscript was based on my/our original work.  It was not published or submitted to other journal for publication.  I/we agree to publish my/our manuscript and the copyright of this article is owned by Reinwardtia.  We have obtained written permission from copyright owners for any excerpts from copyrighted works that are included and have credited the sources in our article. Author signature (s) Date ___________________________________________________________________________________________ Name Reinwardtia Published by Herbarium Bogoriense, Botany Division, Research Center for Biology, Indonesian Institute of Sciences Address: Jln. 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