BLUMEA

The genus Zehneria Endl. is split into 5 genera, of which 4 are new: Indomelothria, Neoachmandra, Scopella, and Urceodiscus. Apart from several new combinations and taxa of subspecific rank, the following species are described as new: I. chlorocarpa, N. backeri, N. lancifolia, N. macrantha, N. nesophila, N. platysperma, U. arfakensis, U. carrii, U. hippocrepicus, U. parviflora, U. scabridula, U. viridis, Z. elbertii, Z. erythrobacca, Z. immarginata, Z. neocaledonica, Z. pedicellata, Z. pisifera, Z. tahitensis, and Z. trullifolia. The New World genus Melothria was introduced in Asia where it is represented by one species, M. pendula L.

[Top of this page] [Catalogue of publications] [NHN]

Two new species of Beilschmiedia (Lauraceae) from Borneo

Sachiko Nishida

Two new species of Beilschmiedia Nees (Lauraceae) from Borneo, B. crassa and B. microcarpa, are described and illustrated. Beilschmiedia crassa is distinguished from the other Bornean Beilschmiedia species by its thick and strongly coriaceous, narrowly ovate leaves and flowers with a thick receptacle. Beilschmiedia microcarpa is distinct in the combination of the following characters: its glabrous narrow buds, opposite, elliptic, chartaceous leaves with raised veins on the upper surface, flowers with short filaments, and relatively small fruits.

[Top of this page] [Catalogue of publications] [NHN]

Systematic studies of Bornean Zingiberaceae V. Zingiberoideae of Lambir Hills, Sarawak

Shoko Sakai & Hidetoshi Nagamasu

This paper reports the subfamily Zingiberoideae (Zingiberaceae) of Lambir Hills National Park, Sarawak, Malaysia. Twelve species representing Boesenbergia, Globba, and Zingiber are recorded. Systematic and ecological notes are provided, and the key to the Bornean species of Boesenbergia is updated. Four species, B. flabellata, B. ischnosiphon, B. lambirensis, and B. lysichitoides, and one variety, Z. longipedunculatum var. lambirense are described as new to science. The lectotype of B. grandifolia is designated. In addition, new combinations of Scaphochlamys and Haplochorema are reported.

[Top of this page] [Catalogue of publications] [NHN]

Five new species of Guatteria (Annonaceae) from French Guiana, Guyana and Suriname

Uwe Scharf, Paul J.M. Maas & Wilfried Morawetz

As a precursor to a taxonomic treatment of Annonaceae for the Flora of the Guianas project, five new species of Guatteria Ruiz & Pav. from French Guiana, Guyana and Suriname (Northern South America) are described here.

[Top of this page] [Catalogue of publications] [NHN]

Acmena, Acmenosperma, Cleistocalyx, Piliocalyx and Waterhousea formally transferred to Syzygium (Myrtaceae)

L.A. Craven, E. Biffin & P.S. Ashton

Based on morphological and molecular data, we have concluded that Acmena, Acmenosperma, Cleistocalyx, Piliocalyx and Waterhousea should be combined with Syzygium. The five genera are formally transferred to Syzygium and new names provided for those of their accepted representatives for which names are as yet not available in Syzygium, with the exception of the New Caledonian members of Piliocalyx as these currently are being revised.

[Top of this page] [Catalogue of publications] [NHN]

A new species of Microsorum (Polypodiaceae) from Thailand

Thaweesakdi Boonkerd

A new species, Microsorum siamensis, is described and illustrated.

[Top of this page] [Catalogue of publications] [NHN]

The subdivision of Ficus subgenus Pharmacosycea section Pharmacosycea (Moraceae)

C.C. Berg

The two subsections of Ficus sect. Pharmacosycea, subsect. Bergianae and subsect. Petenenses, are supplementary described and discussed.

[Top of this page] [Catalogue of publications] [NHN]

Comparative leaf morpho-anatomical studies of two South American species of Cardiospermum (Sapindaceae) with special reference to adaxial domatia

Stella Maris Solís & Maria Silvia Ferrucci

Morphological and anatomical studies of leaves of two closely related Cardiospermum species from South America, C. procumbens and C. pterocarpum, were assayed. Both species have amphistomatic leaves, anomocytic stomata, non-glandular and glandular trichomes, secretory cells present in the epidermis and mesophyll, bifacial structure, and the cuticle showing concentric striae around the stomata. Tunnel-type domatia were found in C. procumbens, at laminar base at the junction of the three principal veins on the adaxial surface. These domatia are interpreted as an apomorphic character for the genus and tribe within the Sapindaceae. In C. pterocarpum domatia are exceptionally present. This is the first record of adaxial domatia in Sapindaceae.

[Top of this page] [Catalogue of publications] [NHN]

Analysis of generic relationships in Anacardiaceae

B.S. Wannan

Cladistic analyses were undertaken of Anacardiaceae using non-sequence data (30 genera and 81 characters from morphology, anatomy, palynology and chemotaxonomy), sequence data (26 genera – rbcL) and a combined dataset of 16 genera. All analyses supported a group of genera which can be recognised at the subfamily level: Anacardioideae. Sequence data and combined datasets supported the recognition of a second subfamily: Spondiadioideae Kunth emend. Wannan. Both datasets also suggested that Buchanania lies outside both subfamily groups.

[Top of this page] [Catalogue of publications] [NHN]

Last modified juni 26, 2007 by P. Hovenkamp.