Jan-Frits Veldkamp

Naturalis Biodiversity Center | NCB · Department of Botany

The history of Haplochorema K.Schum. (Zingiberaceae) is reviewed, its morphology is compared to Boesenbergia Kuntze and the molecular phylogenetic position is shown in relation to other Zingiberaceae. Based on a comparative analysis of molecular and morphological data, Haplochorema is reduced to Boesenbergia with eight new combinations. A lectotype...

Boesenbergia bella Mood & L.M.Prince, B. phengklaii Mood & Suksathan, and B. putiana Mood & L.M.Prince are described with photographs and a comparative table. The description of Boesenbergia petiolata Sirirugsa is revised to include morphology not previously noted. Molecular phylogenetic analyses of the relevant taxa using plastid and nuclear DNA s...

Biophytum poterioides (Oxalidaceae), an enigmatic species, erroneously has been considered as synonymous with B. nervifolium Thwaites in recent treatments. Upon examining the types and other related specimens we prefer to treat it as an independent species. The name is reinstated and aA lectotype is designated here.

We confirm that Thalia dealbata (Marantaceae), the name that has been in use for more than two centuries for this ornamental species from the southern USA, was first validated in association with a plate published by John Fraser in 1794 which conforms to the requirements of an illustration with analysis. The name is lectotypified to the published p...

Georg Eberhard Rumphius (1627–1702), author of the monumental work Herbarium Amboinense (1741–1755) is seen as the undisputed patriarch of Malesian Natural Sciences. Until recently, it was thought that if Rumphius had collected any specimens, they all had been lost. The recent digitisation and revision of two book herbaria in Leiden collected by Pa...

VELDKAMP, J. F. & KARTONEGORO, A. 2017. New species of Catanthera and Medinilla (Melastomataceae) from Halmahera, Indonesia and a new name for a Medinilla from Madagascar. Reinwardtia 16(1): 25 - 30. - One new species of Catanthera and four of Medinilla (Melastomataceae) from Halmahera, Moluccas, Indonesia, are described. One also occurs in Morotai...

The contribution made by Martinus Houttuyn (1720-1798) to systematic botany has been widely underestimated. Fourteen volumes of the second part of his Natuurlijke Historie of Uitvoerige Beschrijving der Dieren, Planten en Mineraalen, published between 1773 and 1783, dealt with botany. Houttuyn popularized the Linnaean system and published more than...

In Malesia there are 4 species of Dimeria (Gramineae). A brief history of the genus with a key, nomenclature, descriptions, and notes is provided. Dimeria ciliata, D. dipteros, and D. fuscescens are reduced to D. chloridiformis, D. leptorhachis and its var. velutina to D. gracilis, D. monostachya to D. kurzii. Dimeria ornithopoda var. gracillima is...

VEDKAMP, J. F. 2016. A revision of Iseilema (Gramineae) in Malesia. Reinwardtia 15(2): 123 – 127. — There are three very rare and localized species in Malesia; one from Java is new. Notes on some other Southeast Asian species are given.

The genus Schumannianthus Gagnep. (Marantaceae) is typified by S. dichotomus Gagnep. This is a new genus and species for the material of Phrynium dichotomum auct. non Roxb. Phrynium dichotomum Roxb. and derivatives are superfluous names for Donax canniformis (G. Forst.) K. Schum. The correct name for S. dichotomus is Schumannianthus benthamianus (K...

Themeda Forssk. (Gramineae) has 11 taxa in Malesia. A revision is provided with keys, synonymy, where necessary lectotypifications, descriptions, and notes. Themeda gigantea nearly is a Philippine endemic, but with a single collection from Halmahera, and one as far away as the Solomon Islands. Themeda caudata is reduced to T. villosa var. caudata,...

VELDKAMP, J. F. & SULISTYANINGSIH, L. D. 2015. Nomenclature and typification of Musa salaccensis Zoll. ex Kurz (Musaceae). Reinwardtia 14(2): 299 - 302. - A nomenclatural history is given for Musa salaccensis (Musaceae) from Java and Sumatra, Indonesia. Previous typifications are rejected and a lectotype is designated here from original material.

MAHYUNI, R., KUSUMA,Y. W. C., WIHERMANTO & VELDKAMP, J. F. 2015. Notes on Rafflesia (Rafflesiaceae) in Sumatra with a new record Rafflesia gadutensis Meijer. Reinwardtia 14(2): 317 - 322. Pulau Mursala is a small island west of the Sibolga, Tapanuli Tengah District, North Sumatra, Indonesia. The occurrence of the genus Rafflesia (Rafflesiaceae) the...

Asplenium tenerum G. Forst. var. pallidum (Blume) Veldk. & Wardani, comb. nov. (Aspleniaceae), is the correct name for what usually is known as A. thunbergii Kunze var. belangeri (Bory) Kunze. Types are designated.

The genus Garnotia (Gramineae) in Malesia and Thailand has eight taxa, one new, and with one new combination. Garnotia tenella also occurs in Oman. A nomenclatural history, key, descriptions, and notes are provided.

The four sections of the little known genus Dimeria R. Br. of the rather anomalous paleotropical subtribe Dimeriinae Hack. (Poaceae–Panicoideae–Andropogoneae) are revised. A key is provided. Three Peninsular Indian species, viz. Dimeria sivarajanii, D. idukkiensis and D. borii are treated here as subspecies of D. bialata, D. kurumthotticalana and D...

Molecular research has shown that Ficaria (Ranunculaceae) is not closely related to Ranunculus. In this study I regard the genus as monospecific with 7 subspecies. It is an arbitrary choice to regard these taxa as species or subspecies. In most of the recent literature a choice has been made for the latter and this is followed here. The type is Fic...

Arundinella Raddi (Gramineae) is revised for Malesia. There are seven species. A survey of the complicated taxonomic and nomenclatural history of the genus is given. A new species for Taiwan is described and notes are provided on sundry other ones. There is a key to the Malesian and some non-Malesian species. Some species are aluminium accumulators...

Dimeria raviana, a new species of Poaceae from the Southern Western Ghats of Kerala, India is described and illustrated. It closely resembles D. fuscescens, but strikingly differs in having a flattened and winged raceme rachis of 1.0–1.25 mm in width with smooth margins.

A new species of Juncus (Juncaceae) from Mt Kinabalu, Borneo, is described and its presumed origin is discussed.

Wallich published Monolophus Wall. (Zingiberaceae) in 1832 for two taxa he had described previously in 1820 as Kaempferia linearis Wall. and K. secunda Wall. He also mentioned M. ? elegans Wall., but the " ? " indicates that he was not certain that this species belonged to this new genus. Consequently, Monolophus elegans, while validly published, c...

Boesenbergia purpureorubra Mood & L.M.Prince is described and illustrated. Boesenbergia longipes (King & Prain ex Ridl.) Schltr. is noted as a new record for Thailand based on C. Maknoi T38 (PSU, QBG).

Recent molecular research has confirmed that Cenchrus and Pennisetum (Gramineae) should be united. For nomenclatural, not practical, reasons, Cenchrus is accepted as the correct name. In Malesia there are 16 species. A key, descriptions, and notes are provided. Observations on the nomenclature are given. Some typifications are discussed, e.g. of Ce...

A new species of Clausena, C. agasthyamalayana is described and illustrated from the southern Western Ghats, Kerala, India. It is similar to C. indica but differs from it being of dwarf habit, and having greenish–black bark, smaller and fewer leaflets, obovate and coriaceous leaves with obtuse or emarginated apex, elliptic and obtuse petals, oblong...

Notes on the taxonomy and nomenclatural status of Eugenia gracilis O. Berg, Eugenia gracilis Bedd., Eugenia mooniana Gardner, Eugenia mooniana Wight and Eugenia phillyreoides Trimen (Myrtaceae) are provided. The new name Eugenia anamalaiensis is proposed for E. gracilis Bedd. from the Anamalai Hills, Kerala, India.

A sedge widespread in the Old World tropics is generally but erroneously known as Bulbostylis puberula. A new combination B. thouarsii is proposed here and the lectotype is designated.

A taxonomic revision of the Malesian genus Creochiton (Melastomataceae) is presented. Twelve species are recognized, although one is based on the original description only. Creochiton turbinatus (comb. nov.) is raised to specific rank from a variety of C. ledermannii. A key to the species, descriptions, ecological habitats, distributions (with maps...

A revision of Mnesithea (Gramineae – Rottboelliinae) in Malesia and Thailand showed that 11 species and 2 varieties occur. The suggestion that there would be a drought plant refuge in SE Borneo near Banjarmasin is supported.

A nomenclatural survey of Boesenbergia rotunda (L.) Mansf. (Zingiberaceae) is presented. The binomial, Boesenbergiaphyllostachya (Gagnep.) K. Larsen, is validated. Comment on the inaccurate lectotypification of Boesenbergia loerzingii is provided.

An endemic species of Renealmia (Zingiberaceae) was treated under the illegitimate name R. sylvestris in Flora Neotropica (Maas, 1977). The new combination Renealmia striata (Stokes) Govaerts ex Maas is published for this species.

A taxonomic revision is presented of the new genus Heteroblemma (Dissochaeteae – Melastomataceae), formerly a section of Medinilla which occurs in Malesia and Vietnam with 14 species, 3 new, and 11 new combina- tions. Descriptions, illustrations, a key, and an index to collectors are provided.

The new genus Nanooravia Kiran Raj & Sivad. (Poaceae–Andropogoneae–Dimeriinae) from the southwestern Ghats in India is described and illustrated, and the new combination N. santapaui (M. R. Almeida) Kiran Raj & Sivad. is made. The genus is characterized by its usually unequal and intertwined racemes, triquetrous rachis, extremely oblique and glabro...

The history of Boesenbergia longiflora (Wall.) Kuntze (Zingiberaceae) is reviewed, its identity is discussed and a lectotype designated. Five new, related taxa are described and illustrated: B. collinsii Mood & L.M.Prince, B. hamiltonii Mood, S.Dey & L.M.Prince, B. kerrii Mood, L.M.Prince & Triboun, B. kingii Mood & L.M.Prince, and B. maxwellii Moo...

Microstegium excl. Leptatherum ( Andropogoneae , Poaceae ) is revised. There are at least 16 species and one variety. By lack of type materials eight names could not be placed, while, moreover, another three were invalidly published. An identification key is provided, synonymy, descriptions, and notes are given. A new combination is proposed.

In examining specimens of the family Poaceae deposited in major herbaria of Taiwan for the study of its diversity, we identified three specimens deposited at herbarium of Department of Forestry, National Pingtung University of Science and Technology (PPI) as Microstegium brandisii (Hook. f.) Rhind, a species newly recorded to the flora of Taiwan. I...

In examining specimens of the family Poaceae deposited in major herbaria of Taiwan for the study of its diversity, we identified three specimens deposited at herbarium of Department of Forestry, National Pingtung University of Science and Technology (PPI) as Microstegium brandisii (Hook. f.) Rhind, a species newly recorded to the flora of Taiwan. I...

An attempt is made to discover the identity and correct name for Uvaria tripetala Roxb., Uvaria tripetala Blanco, Phaeanthus nutans Hook. f. & Thomson and Uvaria ophthalmica Roxb. ex G. Don (Annonaceae). It is concluded that all but one belong to what has been called Phaeanthus ebracteolatus (C. Presl) Merr., which must now be referred to correctly...

Further investigation into the evolutionary relationships of the vireya group of Rhododendron, utilising nuclear DNA sequence data, has demonstrated that this group of species is monophyletic, and a revised classification is presented. The name Vireya is predated at sectional level by several other valid names and the correct name for the section i...

A new species of Ischaemum, I. sayajiraoi Raole & R. J. Desai (Poaceae) is described and illustrated from Gujarat state, western India. A detailed morphological description and line drawing of the new species are provided.

Microstegium glabratum (Brongn.) A. Camus (Poaceae, Andropogoneae) is a new record for Taiwan, Japan (SW Ryukyus), and China (Hainan). Many specimens have been collected since its first discovery in 1915, but these were misidentified as M. ciliatum (Trin.) A. Camus or M. glaberrimum (Honda) Koidz. Its existence in Taiwan is confirmed by the phyloge...

For the genus Microstegium Nees (Poaceae: Andropogoneae) of Taiwan, four known species have been verified. They are Microstegium ciliatum (Trin.) A. Camus, Microstegium fauriei (Hayata) Honda, Microstegium geniculatum (Hayata) Honda and Microstegium vimineum (Trin.) A. Camus. This paper described additional two species, Microstegium spectabile (Tri...

Zonneveld (Pl Syst Evol 281:217–245, 2009) proposed an infrageneric classification of Tulipa (Liliaceae) based on the nuclear content determined by flow cytometry and available morphological data. The nomenclatural consequences of this are discussed here, involving the typification of generic and infrageneric names. Additional notes on some species...

A new species of Medinilla (Melastomataceae) from Celebes, Indonesia, is described. It is a terrestrial shrub or treelet with specialised leafless inflorescence-bearing, many-branched branches at the base of the boles. It is clearly distinct in habit, branch–, leaf–, flower–, and fruit morphology from the few other species that are reported to have...

The date and method of publication of Lindenia Benth. (Rubiaceae) are discussed.

The date and method of publication of Lindenia Benth. (Rubiaceae) are discussed.

Pecteilis rawatii, sp. nov. (Orchidaceae) is described and compared to its nearest ally, P. triflora.

SUMADIJAYA, A. & VELDKAMP, J. F. 2009. Vulpia (Gramineae) in Malesia. Reinwardtia 12(5): 343–346. ⎯ A brief account of Vulpia (Gramineae) in Malesia is which consisting of V. bromoides and V. myuros is provided here, based on material seen primarily by JFV in BO, K, L, CANB. ABSTRAK SUMADIJAYA, A. & VELDKAMP, J. F. 2009. Vulpia (Gramineae) di Males...

Phylogenetic analyses of Microstegium (Andropogoneae, Poaceae) and some other Andropogoneae species were conducted inferred from the ITS/5.8S sequences. As a result of this study, Microstegium is polyphyletic. There are two rather distant monophyletic clades, one with Microstegium nudum (type of Leptatherum), M. japonicum and M. somae, the other on...

In the Saint Louis Code (Greuter & al. in Regnum Veg. 138. 2000) Art. 37.4 allowed the type of a name of a new species or infraspecific taxon of non-fossil plants to be an il-verrucosa Baker" could be translated as "Hoc genus simile Arthropogoni Nees", "Ab Adianto petiolato Desv. differt" and "Haec species affinis Selaginellae verrucosae Baker", re...

The author of Bromus pubescens is Sprengel (1807), not Muhl. ex Willd. (1809). A neotype is designated.

The correct name for Aegilops × triticoides Req. ex Bertol. (1834), non Link (1833) (Gramineae), is Ae. × requienii Ces., Pass. & Gibelli. The hybrid name Aegilotriticum × triticoides Van Slageren is therefore to be corrected to Aegilotriticum × requienii (Ces., Pass. & Gibelli) Veldk., comb. nov. Il nome corretto per Aegilops × triticoides Req. ex...

Silene fortunei Vis. (Caryophyllaceae), a species from Continental China and Taiwan, was originally invalidly published (De Visiani, 1847) and subsequently validated (Rohrbach, 1868), but then was a later homonym of Silene fortunei Hort. ex Regel (1863). It was also superfluous for Silene fissipetala Turcz. (1854) as their holotypes are isotypes of...

Geranium aequale (Bab.) Aedo (Geraniaceae) is an overlooked species in The Netherlands. It is very similar to G. molle L., but differs by having smooth fruit valves with a row of cilia at their base and a relatively longer seed, which is clearly protruding beyond the valves. Moreover, it seems that the species often has white flowers. Some addition...

Maesa velutina Mez (Maesaceae/ Myrsinaceae) is rediscoverd after more than a century. It is described and illustrated with a brief history.

Urochloa supervacua (C.B. Clarke) Noltie, a member of the Poaceae - Panicoideae - Paniceae, possessing 3-flowered spikelet has been collected from Sindhudurg district of Maharashtra, which forms a new state record. Since only brief descriptions exist, a detailed one with illustrations is provided. In addition, a new combination in Urochloa P. Beauv...

Based on phylogenetic studies with DNA sequence data, the formerly monotypic genus Cordemoya was recently expanded with 16 additional species previously assigned to Mallotus. However, the earliest legitimate generic name available is Hancea, and, therefore, Cordemoya is here reduced to Hancea (20 new combinations are proposed). Subsequently, the su...

New insights in the evolutionary relationships. between the species of tribe Senecioneae show that at least 27 species currently assigned to Senecio sect. Jacobaea should be segregated from Senecio L. and are better placed in the genus Jacobaea MILL. In this paper, these species are listed and 19 new combinations in Jacobaea are published.

Bilimbia [Rheede] Rchb. (Oxalidaceae) is not validly published, whereby Bilimbia De Not. (Lichenes) is not a later homonym and must replace Myxobilimbia Hafellner. In an Appendix, the nomenclatural implications are acted upon: Bilimbia De Not. is re-instated and the new combination Bilimbialobulata (Sommerf.) Hafellner & Coppins is made.

VELDKAMP, J.F. 2004. The correct name for Pyrrosia hastate Ching (Polypodiaceae, Pteridophyta). Reinwardtia 12 (2): 191 -193. Pyrrosia hastata Ching (Polypodiaceae, Pteridophyta) is based on Acrostichum hastatum Thunb. (1784) non Houtt. (1783). Its correct name is P. tricuspis (Sw.) Tagawa. ABSTRAK VELDKAMP, J.F. 2004. Nama yang benar untuk Pyrrosi...

Survey with key of the 4 species of Tripogon (Gramineae) of Thailand with an emended description of T. thorelii.

In recent collections of herbaceous grasses from Thailand some novelties were detected: Eremochloa maxwellii Veldk. and Parahyparrhenia laegaardii Veldk. New records for Thailand are: Eragrostis tenuifolia (Hochst.) Steud., Eulalia tetraseta Ohwi, Germainia thorelii A. Camus, Sporobolus tenuissimus (Schrank) Kuntze. A second collection after the ty...

Guide to the microfiche edition of the Van Royen herbarium

A survey of Lepturus R.Br. (Gramineae) in Malesia is given. Monerma P. Beauv. is superfluous, and hence Monermeae an illegitimate tribal name. One new variety of L. repens (G. Forst.) R. Br. is described.

A revision is presented of the four genera of the SE Asian Chionachninae Clayton (Gramineae: Andropogoneae). Twelve species are recognised: nine (with two new combinations) in Chionachne R.Br. (incl. Sclerachne R.Br.) with an emended circumscription, one in the reinstated Cyathorhachis Nees ex Steud., one in Polytoca R.Br., and one in Trilobachne M...

P. Durand (1808) described three species of Chloris Sw. (Poaceae) for the Philippines. In fact they are American: C. hispida P. Durand is Bouteloua hirsuta Lag., C. peregrina P. Durand is C. rufescens Lag., and C. procumbens P. Durand is Bouteloua prostrata Lag. The likely modern identities of the other six Chloris species treated in the work are n...

The Parnassia (Parnassiaceae) from Mt Leuser in N Sumatra, provisionally known as Parnassia aff. wightiana, is described as Parrassia procul.

A revision is presented here of a group of mainly Papua New Guinea species of Medinilla Gaudich. ex DC. (Melastomataceae) peculiar for possessing a feature nearly unique for the family: leaf blades with a pair of lateral lobes at the base ('pseudo-stipules'), This character was previously recorded for Astronidium miraculum-dei J.F. Maxwell & Veldk....

The genus Eremochloa Buse (Gramineae) is revised. Eleven species (2 new) and two varieties are recognized. For one species a new name was necessary. The genus appears to be most similar to Rhytachne Desv. of the Andropogoneae-Rottboelliinae.

A taxonomic revision is given of Hemarthria R.Br. (Gramineae-Andropogoneae-Rottboelliinae) occurring in the warm to tropical areas of the Old World (mainly in SE Asia), with one introduced in the New. Fourteen taxa are recognised, including a variety and a new species from Vietnam proposed here. A neotype for the lectotype species had to be designa...

Pennisetum advena Wipff and Veldkamp, a common ornamental grass in the southern United States, is described and illustrated. A key is provided to separate it from similar taxa (P. macrostachys, P. orientale, and P. setaceum). Pennisetum advena is readily distinguished from P. setaceum, its closest putative relative, by vegetative, inflorescence, fa...

Random amplified polymorphic DNAs (RAPDs) were used to examine accessions of vetiver (Vetiveria zizanioides (L.) Nash, Gramineae) from around the world. It appears that only one genotype, ‘Sunshine’, accounts for almost all the germplasm utilized. Screening of numerous accessions of vetiver revealed only a few nonfertile germlines. Analysis of V. z...

Three new species of Festuca L. (Gramineae) from Malesia are described. A key and collector's list to all Malesian species are provided.