Leguminosae of Philippines in the Vidal herbarium at Real Jardı ´n Bota ´nico, Madrid Manuel de la Estrella, Graciela M. Calabrese, Beatriz Ca ´mara and Mauricio Velayos M. de la Estrella (mestrella@rjb.csic.es), G. M. Calabrese, B.Ca´mara and M.Velayos, Real Jardı´n Bota´nico, CSIC, Plaza de Murillo 2,ES Á 28014, Madrid, Spain. This study provides a checklist of the specimens kept in the Real Jardı ´n Bota ´nico herbarium (MA) belonging to the family Leguminosae and collected by Sebastia ´n Vidal in Philippines, during the period 1876 to 1887. More than 750 specimens were studied. In the subfamily Caesalpinioideae we found 39 species (14 genera); Mimosoideae 24 species (10 genera) and Papilionoideae 85 species (40 genera). Twenty six species collected by Vidal should be considered introduced in the country. Although this collection is dated from the 19th century, five species are reported for the first time from the country: Albizia splendens, Bauhinia ferruginea, Caesalpinia andamanica, Sindora coriacea and Sindora wallichii. The whole Vidal collections (series 1, 2 and M) were studied and a map of localities with coordinates is provided. A statistical summary is presented at the end of the checklist. Leguminosae is the third largest plant family in the world, comprising about 730 genera and ca 19 300 species (Lewis et al. 2005). It is one of the most important families, not only by its ecological but also for its economic importance. In the Philippines, many taxa of this family were collected by Sebastia ´n Vidal and colleagues (J. F. Quadras, R. Garcı ´a, J. Pe ´rez Maeso, J. Sainz de Baranda, M. Ramos and others) during the period from 1876 to 1887. Vidal was chief of the Commission for the forest flora of the Philippines since 1876 and then became director of the Manila Bot. Gard. from 1878 to 1889. The Philippines is an archipel- ago formed by 7 107 islands, and has a surface of over 300 000 km 2 . The territory is volcanic and it is covered by tropical forest in its most part. The better surveyed islands by Vidal and colleagues. were: Luzo ´n, Palawan, Samar, Balabac, Alabat, Marinduque and Gimaras. The Commision collected over 14 000 specimens; 9800 belongs to the family Leguminosae. The first set of the collection was deposited in Manila; unfortunately it was destroyed by fire in 1897. The second set was sent to Madrid and it is stored in the Real Jardı ´n Bota ´nico herbarium (MA). From MA some duplicates were sent as exchange to different herbaria: Kew (K 94000 specimens), Leiden (L 92000 specimens), G, P, FI and PNH. The Vidal herbarium in MA is arranged in three series: Series 1 (no. 1Áno. 2000), Series 2 (no. 2001Áno. 4062), and Series 3 (named M), in which specimens not identified were stored. A list of the plants comprising Series 1 was published by Vidal (1886). Contrastingly Series 2 were partially published by Cero ´n (1892), later on specimens from Series 1 and 2 were studied by Quisumbing in 1954, 1958 and 1959 during his different visits at MA. He renumbered Vidal’s specimens, apparently giving the same number to all sheets belonging to the same species, without taking in con- sideration the localities and dates of each collection. This procedure brought additional difficulties in the recognition of the material (Calabrese and Velayos 2007). However, the numbers included by Quisumbing have been used by different authors as if they were Vidal’s numbers. K. Larsen and S. S. Larsen, while visiting MA in 1983, revised the three series and classified them by families. However, the material included in the Series M has never been published. The aim of this work is to review and compile all the Leguminosae specimens from the Vidal Herbarium (MA), including Series M. A checklist followed by a table of localities with coordinates and a map are provided. Material and methods This work is based on 9750 specimens belonging to the family Leguminosae from the Vidal herbarium (MA). For comparative purposes some specimens from neighbouring countries were also studied. As compared to Lock and Ford (2004), five species that we have found in the Vidal herbarium appear to be new reports from the Philippines, and these are marked with an asterisk (*). Endemic or introduced species are quoted Nordic Journal of Botany 25: 41Á52, 2007 doi: 10.1111/j.2007.0107-055X.00102.x, # The Authors. Journal compilation # Nordic Journal of Botany 2007 Subject Editor: Henrik Ærenlund-Pedersen. Accepted 12 September 2007 41