Icacinaceae
publication ID |
https://doi.org/ 10.5852/ejt.2020.645 |
DOI |
https://doi.org/10.5281/zenodo.3848622 |
persistent identifier |
https://treatment.plazi.org/id/B7038788-FF90-C355-828F-FBC3FAEB010B |
treatment provided by |
Valdenar |
scientific name |
Icacinaceae |
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Key to genera of Icacinaceae View in CoL s.str.
1. Endocarp wall homogeneous comprised of isodiametric cells .............................. Cassinopsis Sond. View in CoL – Endocarp wall not homogeneous or cells not exclusively isodiametric ........................................... 2
2. Hairs present on the locule surface ................................................................................................... 3 – Hairs absent from the locule surface ................................................................................................ 4
3. Endocarp width ca 40 mm, endocarp wall more than 700 µm thick ........................ Lavigeria Pierre View in CoL – Endocarp width ca 13 mm, endocarp wall less than 400 µm thick ................................ Leretia Vell. View in CoL
4. Locule surface papillate .................................................................................................................... 5 – Locule surface not papillate .............................................................................................................. 6
5. Outer endocarp surface pitted ........................................................................................................... 7 – Outer endocarp surface not pitted ..................................................................................................... 8
6. Hairs-like unit present on the endocarp surface ................................................. Pleurisanthes Baill. View in CoL – Hairs-like unit absent from the endocarp surface ............................................................................. 9
7. Tubercles bullate ....................................................................................................... Miquelia Meisn. View in CoL – Tubercles spiny, cylindrical, peg-shaped or elongate-flattened ........................ Pyrenacantha Hook. View in CoL
8. Endocarp primary vascular bundle embedded within endocarp wall ............................. Iodes Blume View in CoL – Endocarp primary vascular bundle outside endocarp wall or in a channel .................................... 10
9. Outer endocarp surface pitted ..........................................................................................................11 – Outer endocarp surface not pitted ................................................................................................... 12 10. Outer endocarp surface completely smooth ................................................................... Iodes Blume View in CoL – Outer endocarp surface ridged or rugose, irregular ........................................................................ 13
11. Pits within shallow mounds slightly protruding inside the locule .......................... Phytocrene Wall. View in CoL – Pits within tubercles protruding inside the locule ........................................................................... 14
12. Endocarp thickness> 12 mm ..................................................................................... Icacina A.Juss. View in CoL – Endocarp thickness <10 mm .......................................................................................................... 15
13. Endocarp length ca 12 mm .................................................................. Hosiea Hemsl. & E.H.Wilson View in CoL – Endocarp length> 15 mm ............................................................................................................... 16
14. Tubercles bullate ................................................................................................. Stachyanthus Engl. View in CoL – Tubercles spiny, cylindrical, peg-shaped or elongate-flattened ........................ Pyrenacantha Hook. View in CoL
15. Endocarp ridged and reticulate ....................................................................................................... 17 – Endocarp rugose, irregular .............................................................................................................. 18
16. Endocarp almost smooth, irregularly rugose but without clear protuberant structures ...................... .................................................................................................................. Sarcostigma Wight & Arn. View in CoL – Endocarp rugose with clear protuberant structures or ridged ......................................................... 19
17. Endocarp oblong .................................................................................... Alsodeiopsis Oliv. in Benth. View in CoL – Endocarp elliptical .......................................................................................................................... 20
18. Endocarp apex with prominent bulge or pores ............................................................................... 21 – Endocarp apex without ornamentation .......................................................................... Mappia Jacq. View in CoL
19. Endocarp rugose, irregular ....................................................................... Mappianthus Hand. -Mazz. – Endocarp ridged with a reticulate or diffuse ornamentation ................................ Rhyticaryum Becc.
20. Endocarp length ca 9 mm, 4–5 areoles formed by ridges on each face .............................................. ........................................................................................................... Natsiatum Buch. View in CoL -Ham. ex Arn.
– Endocarp length> 11 mm, 20–30 areoles formed by ridges on each face .......................................... .................................................................................................... Vadensea Jongkind & O.Lachenaud View in CoL
21. Endocarp with subapical pores .................................................. Vadensea Jongkind & O.Lachenaud View in CoL – Endocarp with apical bulge ............................................................................................................ 22
22. Ornamentation bullate, occuring in Madagascar............................. Desmostachys Planch. ex Miers View in CoL – Ornamentation more granular, occuring in Asia ............................................... Nothapodytes Blume
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