Emmotum nitens Miers 1852
- 1. CR 2 P - Centre de Recherche en Paléontologie - Paris, CNRS - MNHN - Sorbonne Université, CP 38, 57 rue Cuvier, 75231 Paris Cedex 05, France. & ISYEB - Institut de Systématique, Évolution, Biodiversité, CNRS - MNHN - Sorbonne Université - EPHE, CP 39, 57 rue Cuvier, 75231 Paris Cedex 05, France. & CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China.
- 2. Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, China. & Department of Botany, Smithsonian Institution, Washington, DC 20013, USA.
- 3. CR 2 P - Centre de Recherche en Paléontologie - Paris, CNRS - MNHN - Sorbonne Université, CP 38, 57 rue Cuvier, 75231 Paris Cedex 05, France.
Description
Emmotum nitens (Benth.) Miers
Fig. 35.18–35.27
Material examined
Specimen used for endocarp and fruit description
BRAZIL • 1968; R.M. Harley & R. Souza 10028; P [MNHN-P-P05279304].
Other material
BRAZIL • 1969; M. Claussen 1838; P [MNHN-P-P04513313] • 1974; R.M. Harley et al. 15081; P [MNHN-P-P04513269] • 1894; A. Glaziou 22041; P [MNHN-P-P04513276].
BOLIVIA • 1993; R. Quevedo 927; P [MNHN-P-P04513320].
Description
FRUIT. Black when dry, globose. Epicarp glabrous. Calyx persistent. Length 10–15 mm, width 10– 15 mm, thickness 15–18 mm.
ENDOCARP. Cream, bilaterally symmetrical, trilocular, three-seeded, globose in lateral view and transverse section, flattened in the apex-base axis, length ca 10.4 mm, width ca 14.9 mm, thickness ca 15 mm. Keel surrounding the endocarp on dorsal side only. Apex and base flattened in lateral view. Outer surface of the endocarp rugose with long and brittle rugosities. Endocarp wall of two parts: the outer part, ca 400 µm thick (930–1230 µm with rugosities), surrounds the three inner locule walls (350–390 µm thick), which surround the seeds. The outer surface of the endocarp with circular pores piercing the wall, ca 110 µm in diameter. Endocarp wall with sclerotic, isodiametric and homogeneous cells (inner and outer walls), 59.4–111.9 µm in diameter. Cells pitted and with spikes inside.
Remarks
The pores piercing the outer part of the wall might offer a means of gas exchange between the outer and inner parts of the locules. The significance of the spikes inside the endocarp cells is currently unclear.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5852/ejt.2020.645 (DOI)
- Journal article: http://zenodo.org/record/3829651 (URL)
- Journal article: http://publication.plazi.org/id/4B3AFFF0FF98C35C8232FFABFF9D0760 (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/B7038788FFF7C333806AFD4AFAFF018E (URL)
- https://www.gbif.org/species/164160241 (URL)
Biodiversity
- Collection code
- P
- Family
- Icacinaceae
- Genus
- Emmotum
- Kingdom
- Plantae
- Material sample ID
- MNHN-P-P04513269 , MNHN-P-P04513276 , MNHN-P-P04513313 , MNHN-P-P04513320 , MNHN-P-P05279304
- Order
- Icacinales
- Phylum
- Tracheophyta
- Scientific name authorship
- Miers
- Species
- nitens
- Taxon rank
- species
- Taxonomic concept label
- Emmotum nitens Miers, 1852 sec. Rio, Stull & Franceschi, 2020