Description of 11 new Astiella (Spermacoceae, Rubiaceae) species endemic to Madagascar

Inge Groeninckx, Steven Janssens, Erik Smets, Brecht Verstraete

Abstract


Astiella is an herbaceous genus endemic to Madagascar, originally described with a single species A. delicatula Jovet. Molecular and morphological evidence place it in the tribe Spermacoceae s. lat. of Rubiaceae. During herbarium studies and fieldwork in Madagascar, 11 new Astiella species were identified and these are described here: A. antongilensis Groeninckx sp. nov., A.antsalovansis Groeninckx sp. nov., A. confusa Groeninckx sp. nov., A. deblockiae Groeninckx sp. nov., A.desseinii Groeninckx sp. nov., A. homolleae Groeninckx sp. nov., A. latifolia Groeninckx sp. nov., A.longifimbria Groeninckx sp. nov., A. perrieri Groeninckx sp. nov., A. pulla Groeninckx sp. nov., and A.tsaratanensis Groeninckx sp. nov. The genus Astiella now holds 12 species in total that are all endemic to Madagascar.


Keywords


Astiella; endemism; Madagascar; Rubiaceae; Spermacoceae s. lat.

Full Text:

PDF PDF/A


DOI: https://doi.org/10.5852/ejt.2017.312

References


Anonymous 1962. Systematics association committee for descriptive biological terminology. II. Terminology of simple symmetrical plane shapes (chart 1). Taxon 11: 145–156. http://dx.doi.org/10.2307/1216718

Bachman S., Moat J., Hill A.W., De la Torre J. & Scott B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: Smith V. & Penev L. (eds) e-Infrastructures for data publishing in biodiversity science. ZooKeys 150: 117–126. https://doi.org/10.3897/zookeys.150.2109

Beentje H. 2012. The Kew Plant Glossary, an illustrated dictionary of plant terms. Revised edition. Royal Botanic Gardens, Kew.

Callmander M.W., Schatz G.E. & Lowry P.P. 2005. IUCN Red List assessment and the global strategy for plant conservation: taxonomists must act now. Taxon 54: 1047–1050.

Dessein S., Ntore S., Robbrecht E. & Smets E. 2003. Pollen and seeds reveal that Spermacoce thymoidea s.l. (African Rubiaceae, Spermacoceae) represents three endemic or disjunct species from the Zambesian high plateaus. Systematic Botany 28: 130–144. http://www.jstor.org/stable/3093943

Govaerts R., Ruhsam M., Andersson L., Robbrecht E., Bridson D., Davis A., Schanzer I. & Sonké B. 2016. World Checklist of Rubiaceae. The Board of Trustees of the Royal Botanic Gardens, Kew. Available from http://apps.kew.org/wcsp [accessed 29 Jul. 2016].

Groeninckx I., Dessein S., Ochoterena H., Persson C., Motley T.J., Karehed J., Bremer B., Huysmans S. & Smets E. 2009. Phylogeny of the herbaceous tribe Spermacoceae (Rubiaceae) based on plastid DNA data. Annals of the Missouri Botanical Garden 96: 109–132. http://dx.doi.org/10.3417/2006201

Groeninckx I., Briggs M., Davis A., De Block P., Robbrecht E., Smets E. & Dessein S. 2010a. A new herbaceous genus endemic to Madagascar: Phialiphora (Spermacoceae, Rubiaceae). Taxon 59: 1815–1829.

Groeninckx I., De Block P., Robbrecht E., Smets E. & Dessein S. 2010b. Amphistemon and Thamnoldenlandia, two new genera of Rubiaceae (Spermacoceae) endemic to Madagascar. Botanical Journal of the Linnean Society 163: 447–472. http://dx.doi.org/10.1111/j.1095-8339.2010.01060.x

IUCN 2001. IUCN Red List Categories: Version 3.1. IUCN Species Survival Commission, Cambridge. Available from http://www.iucnredlist.org/technical-documents/categories-and-criteria/2001-categories-criteria [accessed 24 Jan. 2017].

Janssens S., Groeninckx I., De Block P., Verstraete B., Smets E. & Dessein S. 2016. Dispersing towards Madagascar: biogeography and evolution of the Madagascan endemics of the Spermacoceae tribe (Rubiaceae). Molecular Phylogenetics and Evolution 95: 58–66. http://dx.doi.org/10.1016/j.ympev.2015.10.024

Jovet P. 1941. Astiella delicatula, espèce nouvelle d’un genre nouveau malgache (Rubiacées-Oldenlandiées). Notulae Systematicae 9: 146–156.

Moat J. & Smith P. 2007. Atlas of the vegetation of Madagascar. Royal Botanic Gardens, Kew.

Punt W., Hoen P.P., Blackmore S., Nilsson S. & Le Thomas A. 2007. Glossary of pollen and spore terminology. Review of Palaeobotany and Palynology 143: 1–81. http://dx.doi.org/10.1016/j.revpalbo.2006.06.008

Reitsma T. 1969. Size modifications of recent pollen grains under different treatments. Review of Palaeobotany and Palynology 9: 175–202. http://dx.doi.org/10.1016/0034-6667(69)90003-7

Schols P., Dessein S. & Smets E. 2001. iMap version 2.0. Available from www.biovolution.com

Schols P., Dessein S., D’hondt C., Huysmans S. & Smets E. 2002. Carnoy: a new digital measurement tool for palynology. Grana 41: 124–126. http://dx.doi.org/10.1080/001731302760156936

Thiers B. Continuously updated. Index Herbariorum, a global directory of public herbaria and associated staff. Available from http://sweetgum.nybg.org/ih/ [accessed 24 Jan. 2017].


Refbacks

  • There are currently no refbacks.


License URL: https://creativecommons.org/licenses/by/3.0/

 

 

royal_museum_for_central_africablank_spaceroyal_belgian_institute_of_natural_sciencesnatural_history_museum_of_londonnatural_history_museum_of_denmark

 

 

    

 

Credits for header's photographs