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Issue: Vol. 694 No. 2: 20 Mar. 2025
Type: Article
Published: 2025-03-20
DOI: 10.11646/phytotaxa.694.2.1
Page range: 109-118
Abstract views: 188
PDF downloaded: 98

Tessmannia princeps (Fabaceae), a new rainforest tree from the Udzungwa Mountains, Tanzania

Muse – Museo delle Scienze, Corso della Scienza 3, Trento 38122, Italy; Udzungwa Corridor LTD, P.O. Box 386, Iringa, Tanzania
Muse – Museo delle Scienze, Corso della Scienza 3, Trento 38122, Italy
Udzungwa Corridor LTD, P.O. Box 386, Iringa, Tanzania
Via Grazia Deledda 25, Gossolengo 29020, Italy
East African Herbarium. National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya
Eastern Arc Fabaceae Detarieae new species taxonomy Eudicots

Abstract

Tessmannia princeps, a new canopy emergent rainforest tree species from the Udzungwa Mountains, Tanzania, is described and illustrated. It is a montane, unarmed tree distinguished by its large stature, extensively buttressed bole, and high number of leaflets. Tessmannia princeps shows morphological affinities with another Tanzanian species, T. densiflora, nevertheless the two species can be distinguished by morphological characters as well as by ecology and geography. A diagnostic key to the East African species of Tessmannia is provided. Due to its restricted range and small number of recorded mature individuals, the conservation status of T. princeps is assessed as Vulnerable under the IUCN criteria.

References

  1. Alston, A.H.G. (1925) XXVIII. Revision of the genus Cassipourea. Bulletin of Miscellaneous Information, Royal Gardens, Kew 1925 (6): 241–276. https://doi.org/10.2307/4107470
  2. Andrella, G.C., Burgos, M.A., Sartori, A.L.B., Balan, A., Bandyopadhyay, S., Pinto, R.B., Barrett, R., Boatwright, J.S., Borges, L.M., Bortoluzzi, R., Broich, S.L., Brullo, S., Bruneau, A., Cardinal-McTeague, W., Cardoso, D., Silva, I.C.C., Cervantes, A., Choo, L.M., Clarke, R., Monteiro, T.C.E., Compton, J., Crameri, S., De la Estrella, M., De Lima, H.C., De Sousa, F., Delgado-Salinas, A., Dorado, Ó., Duan, L., Egan, A.N., Falcão, M., Farruggia, F., Fortuna-Perez, A.P., Fortune-Hopkins, H., Fritsch, P., Gagnon, E., de Lima, A.G., del Galdo, G.G., Goncharov, M., Gregório, B.S., Grether, R., Ho, B.C., Hughes, C., Javadi, F., Jordão, L., Klitgaard, B.B., Kramina, T., Lachenaud, O., Atunes, L.L.C., Lavin, M., Le Roux, M., Linares, J.L., Lewis, G.P., Li, S.J., Mansano, V., Mashego, K.S., Maslin, B., Mattapha, S., Valls, J.F.M., Moteetee, A., Murphy, B., Ohashi, H., Ohashi, K., de Queiroz, L.P., Pandey, A., Pennington, R.T., Phillipson, P., Morim, M.P., Povydysh, M., Rakotonirina, N., Ramos, G., Rando, J., Filardi, F.R., Sanjappa, M., Santos-Guerra, A., Schley, R., Schrire, B., Rodrigues, R.S., Seijo, G., Seleme, E.P., Şentürk, O., Shimizu, G., de Carvalho, C.S., Flores, A.S., Simon, M.F., Simpson, C.E., Sirichamorn, Y., Gissi, D.S., Sokoloff, D., Sotuyo, S., Stirton, C.H., Straub, S., Subramaniam, S., Thulin, M., Torke, B.M., Van der Burgt, X., Vatanparast, M., Wilding, N., Winitsky, S., Wojciechowski, M., Yi, T. & Zhang, R. (2024) The World Checklist of Vascular Plants (WCVP): Fabaceae. In: Govaerts, R. (Ed.) The World Checklist of Vascular Plants (WCVP), version 5. Royal Botanic Gardens, Kew, Richmond, United Kingdom. Available from: https://doi.org/10.15468/mvhaj3 (accessed 12 January 2024)
  3. Baker, J.G. (1894) Garcinia Buchanani Baker. In: CCCCXII.–Decades Kewense. Plantarum Novarum in Herbario Horti Regii Conservatarum. Decas X. Bulletin of Miscellaneous Information, Kew 1894 (94): 354. [https://www.biodiversitylibrary.org/item/127108#page/357/mode/1up]
  4. Baker, J.G. (1897) Weihea malosana Baker. In: DLXXV. Diagnoses africanae, X. Bulletin of Miscellaneous Information, Kew 1897 (128–129): 267. [https://www.biodiversitylibrary.org/item/127162#page/273/mode/1up]
  5. Beentje, H. (2016) The Kew plant glossary. An illustrated dictionary of plant terms. 2nd Edn.. Royal Botanic Gardens, Kew, 184 pp.
  6. Brenan, J.P.M. (1967) Leguminosae: subfamily Caesalpinioideae. In: Milne-Redhead, E. & Polhill, R.M. (Eds.) Flora of Tropical East Africa. Crown Agents for Oversea Governments and Administrations, London, United Kingdom, 230 pp.
  7. Brummitt, R.K., Chikuni, A.C., Lock, J.M. & Polhill, R.M. (2007) Leguminosae subfamily Caesalpinioideae. In: Timberlake, J.R., Pope, G.V., Polhill, R.M. & Martin, E.S. (Eds.) Flora Zambesiaca 3 (2). 218 pp.
  8. Candolle, A.C.P. de. (1878) Meliaceae. In: Candolle, A.L.P.P. de & Candolle, A.C.P. de (Eds.) Monographiae Phanerogamarum Prodromi nunc Continuato, nunc Revisio Auctoribus Alphonso et Casimir de Candolle Aliisque Botanicis Ultra Memoratis. Vol. 1. Masson & Cie, Paris, 783 pp. + 9 plates. https://doi.org/10.5962/bhl.title.45961
  9. Dawe, M.T. & Sprague, T.A. (1906) Pseudocedrela excelsa (n.sp.) In: Stapf, O., Sprague, T.A., Rolfe, R.A., Clarke, C.B., Dawe, M.T. & Wright, C.H. (Eds.) Plantae Novae Daweanae in Uganda Lectae. Botanical Journal of the Linnean Society, London 1906 (37): 511. [https://academic.oup.com/botlinnean/article-abstract/37/262/495/2897887?redirectedFrom=fulltext]
  10. Engler, H.G.A. (1894) Über die Gliederung der Flor Usambaras und der angrenzenden Gebiete. Abhandlungen der Koniglichen Akademie der Wissenschaften in Berlin 1894: 1–86. [https://www.biodiversitylibrary.org/page/29240986#page/53/mode/1up]
  11. Engler, H.G.A. (1897) Guttiferae. In: Engler, H.G.A. (Ed.) Naturlichen Pflanzenfamilien. Nachträge zum II bis IV Teil. Wilhelm Engelmann, Leipzig, pp. 247–250. [https://bibdigital.rjb.csic.es/viewer/10967/?offset=#page=247&viewer=picture&o=bookmark&n=0&q=]
  12. Engler, H.G.A. (1899) Lauraceae africanae. In: Engler, H.G.A. (Ed.) Beiträge zur Flora von Afrika XVII. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 26 (3–4): 385–392. [https://www.biodiversitylibrary.org/item/686#page/399/mode/1up]
  13. Engler, H.G.A. (1900) Berichte über die botanischen Ergebnisse der Nyassa-See- und Kinga-Gebirgs-Expedition der Hermann- un Elise- geb. Heckmann-Wentzel-Stiftung. III. Die von W. Goetze und Dr. Stuhlmann um Ulugurugebirge, sowie die von W. Goetze in der Kisaki- und Khutu-Steppe und in Uhehe gesammelten Pflanzen. In: Engler, H.G.A. (Ed.) Beiträge zur Flora von Afrika XX. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 28 (4): 332–510. [https://www.biodiversitylibrary.org/item/689#page/347/mode/1up]
  14. De la Estrella, M., Forest, F., Klitgård, B., Lewis, G.P., Mackinder, B.A., De Quiroz, L.P., Wieringa, J.J. & Bruneau, A. (2018) A new phylogeny-based tribal classification of subfamily Detarioideae, an early branching clade of florally diverse tropical arborescent legumes. Scientific Reports 8: a6884. https://doi.org/10.1038/s41598-018-24687-3
  15. Gilbert, G.C.C. & Boutique, R. (1952) Mimosaceae. Flore du Congo Belge et du Ruanda-Urundi, vol. 3. Publications de l’Institut National pour l’Étude Agronomique du Congo, Bruxelles, pp. 137–233.
  16. Gilg, E.F. (1893) Loganiaceae africanae. In: Engler, H.G.A. (Ed.) Beiträge zur Flora von Afrika VI. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 17 (5): 559–584. [https://www.biodiversitylibrary.org/item/675#page/728/mode/1up]
  17. Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8: a215. https://doi.org/10.1038/s41597-021-00997-6
  18. Harms, H.A.T. (1901) Leguminosae africanae. In: Engler, H.G.A. (Ed.) Beiträge zur Flora von Afrika XXI. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 30: 75–94. [https://www.biodiversitylibrary.org/page/211299#page/81/mode/1up]
  19. Harms, H.A.T. (1910) Leguminosae africanae V. In: Engler, H.G.A. (Ed.) Beitäge zur Flora von Afrika XXXVII. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 45 (2): 293–316. [https://www.biodiversitylibrary.org/item/707#page/308/mode/1up]
  20. Harms, H.A.T. (1915) Fam. Leguminosae. In: Engler, H.G.A. & Drude, O. (Eds.) Die vegetation der Erde: sammlung plflanzengeographischer monographien. Vol. 9, part 3, no. 1. Leipzig, pp. 327–698. [https://www.biodiversitylibrary.org/page/34578722#page/334/mode/1up]
  21. Hutchinson, J. & Dalziel, J.M. (1963) Flora of West Tropical Africa. Crown Agents for Oversea Governments and Administrations, London, 2300 pp.
  22. IUCN. (2012) IUCN Red List Categories and Criteria: Version 3.1, 2nd ed. IUCN, Gland, Switzerland and Cambridge, UK, iv + 32 pp. Available from: https://portals.iucn.org/library/node/10315 (accessed 17 May 2019)
  23. Léonard, J. (1957) Genera des Cynometreae et des Amherstieae africaines (Leguminosae-Caesalpinioideae). Essai de blastogenie appliqué à la systématique. Mémoires de l’Académie Royale des Sciences, Belgique 30 (2): 1–314.
  24. Linnaeus, C. filius. (1782) Supplementum Plantarum Systematis Vegetabilium Editionis Decimae Tertiae, Generum Plantarum Editiones Sextae, et Specierum Plantarum Editionis Secundae. Editum a Carolo a Linné. Orphanotrophei, Brunsvigae [Braunschweig]. https://doi.org/10.5962/bhl.title.555
  25. Lovett, J.C., Bridson, D.M. & Thomas, D.W. (1988) A preliminary list of the moist forest angiosperm flora of Mwanihana Forest Reserve, Tanzania. Annals of the Missouri Botanical Garden 75 (3): 874–885. https://doi.org/10.2307/2399376
  26. Micheli, M. (1897) Baikiaea anomala (n. sp.). In: Duran, T. & De Wildeman, E. (Eds.) Matériaux pour la Flore Du Congo. Bulletin de la Société Royale de Botanique de Belgique 36 (comptes-rednus des Séances) 1897: 47–97. [https://www.biodiversitylibrary.org/item/33979#page/275/mode/1up]
  27. Pierre, J.B.L. (1897) Sur quelques Olacacées du Gabon. Bulletin Mensuel de la Société Linnéenne de Paris 2: 1290–1296. [https://www.biodiversitylibrary.org/page/47210987#page/594/mode/1up]
  28. Sabine, J. (1824) LXX. Some account of the edible fruits of Sierra Leone. Transactions of the Horticultural Society of London 5: 439–466. [https://www.biodiversitylibrary.org/item/152459#page/481/mode/1up]
  29. Sprague, T.A. (1910) Entandrophragma, Leioptyx and Pseudocedrela. Bulletin of Miscellaneous Information, Royal Gardens, Kew 1910 (6): 177–182. https://doi.org/10.2307/4113300
  30. Trofimov, D. & Rohwer, J.G. (2020) Towards a phylogenetic classification of the Ocotea complex (Lauraceae): an analysis with emphasis on the Old World taxa and description of the new genus Kuloa. Botanical Journal of the Linnean Society 192 (3): 510–535. https://doi.org/10.1093/botlinnean/boz088
  31. Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Koeltz Botanical Books, Glashütten, xxxviii + 254 pp. https://doi.org/10.12705/Code.2018
  32. Van der Burgt, X.M. (2016) Didelotia korupensis and Tessmannia korupensis (Leguminosae, Caesalpinioideae), two new tree species from Korup National Park in Cameroon. Blumea 61 (1): 51–58. https://doi.org/10.3767/000651916X691402

How to Cite

BIANCHI, ANDREA, LAURA TOMASI, ALOYCE MWAKISOMA, MATTEO BARBIERI, and QUENTIN LUKE. 2025. “<em>Tessmannia princeps</Em> (Fabaceae), a New Rainforest Tree from the Udzungwa Mountains, Tanzania”. Phytotaxa 694 (2):109-18. https://doi.org/10.11646/phytotaxa.694.2.1.