Pleroma D. Don 1823
| Autor: | Meyer, Fabrício Schmitz, Brotto, Marcelo Leandro, Goldenberg, Renato |
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| Rok vydání: | 2022 |
| Předmět: | |
| DOI: | 10.5281/zenodo.6839790 |
| Popis: | Identification key for the native species of Pleroma in the state of Paraná ( adapted from Meyer et al. 2010a). 1. Flowers solitary................................................................................................................................................................................. 2 - Flowers arranged in inflorescences, from cymes with few flowers (3–7 flowers) to thyrsoids with more than 15 flowers........... 4 2. Shrubs; leaves with the adaxial surface glabrous..................................................................................................... P. setosociliatum - Trees; leaves with the adaxial surface covered by indumentum...................................................................................................... 3 3. Leaves with three main veins; style glabrous............................................................................................................. P. sellowianum - Leaves with five main veins; style pilose..................................................................................................................... P. raddianum 4. Branches, leaves (both surfaces), and hypanthium covered with eglandular, dendritic or stellate trichomes................................. 5 - Branches, leaves (both surfaces), and hypanthium covered with glandular or eglandular trichomes, these devoid of lateral ramifications..................................................................................................................................................................................... 6 5. Leaves slightly discolorous; young branches, petioles, and inflorescence branches covered with dendritic trichomes; antesepalous stamens with pedoconnective appendages 0.9–1.2 mm long......................................................................................... P. joelsilvae - Leaves strongly discolorous; young branches, petioles, and inflorescence branches covered with stellate trichomes; antesepalous stamens with pedoconnective appendages 1.5–3 mm long............................................................................................ P. oleifolium 6. Anthers with a truncate apex........................................................................................................................................... P. hospitum - Anthers with an attenuate apex.......................................................................................................................................................... 7 7. Leaves strongly discolorous, distinctly whitish on the abaxial surface............................................................................................ 8 - Leaves concolorous or slightly discolorous, not whitish on the abaxial surface.............................................................................. 9 8. Leaves with the adaxial surface covered by glandular trichomes; petals purple.................................................................. P. molle - Leaves with the adaxial surface covered by eglandular trichomes; petals white............................................................... P. dusenii 9. Leaves whorled on proximal branches, opposite on distal branches............................................................................. P. frigidulum - Leaves always opposite, both on proximal and distal branches..................................................................................................... 10 10. Bracteoles six, persistent at the base of the hypanthium in mature flowers.............................................................. P. hatschbachii - Bracteoles two, early deciduous..................................................................................................................................................... 11 11. Anthers white...................................................................................................................................................................... P. ursinum - Anthers purple to lilac.................................................................................................................................................................... 12 12. Hypanthium sericeous.................................................................................................................................................................... 13 - Hypanthium setose or strigose........................................................................................................................................................ 17 13. Trees; flowers 7–8 cm in diameter................................................................................................................................... P. caissara - Shrubs; flowers 3.5–6 cm in diameter............................................................................................................................................ 14 14. Leaves sessile or with very short petioles, less than 2 mm long; blade apex obtuse...................................................... P. clavatum - Leaves with petioles longer than 3.8 mm long; blade apex acute.................................................................................................. 15 15. Leaves strigose on the adaxial surface; sepals ca. 10 mm long................................................................................. P. goldenbergii - Leaves sericeous on the adaxial surface; sepals 5.5–7.5 mm long................................................................................................. 16 16. Bracteoles 9.4–10.5 × 5.7–6.7 mm; plants occurring in Paraná’s coastal region....................................................... P. urvilleanum - Bracteoles 6.4–7.2 × 3.9 mm; plants occurring on Paraná’s highlands..................................................................... P. guartelaense 17. Filaments villose, with trichomes 1–3 mm long.............................................................................................................. P. martiale - Filaments glabrous or puberulous, setose, setulose, with trichomes 0.2–0.5 mm long.................................................................. 18 18. Leaves with the adaxial surface covered by trichomes distributed in longitudinal bands along the space between the veins........................................................................................................................................................................................................ P. dubium - Leaves with the adaxial surface covered with trichomes distributed over the entire surface........................................................ 19 19. Bracteoles 4–7.5 mm long.............................................................................................................................................................. 20 - Bracteoles 10–20 mm long............................................................................................................................................................. 21 20. Leaves elliptic, with 5 veins; plants occurring in Paraná’s coastal plain.................................................................. P. trichopodum - Leaves ovate to ovate-lanceolate, with 7 veins; plants occurring in Paraná’s highlands..................................................... P. kleinii 21. Branches hirsute; leaves with reticulation visible on the abaxial surface with reticulate veins; bracteoles ovate............ P. pilosum - Branches strigose; leaves with reticulation not visible on the abaxial surface; bracteoles orbiculate.................................. P. reitzii Published as part of Meyer, Fabrício Schmitz, Brotto, Marcelo Leandro & Goldenberg, Renato, 2022, Pleroma joelsilvae (Melastomataceae): a new and endemic species from Paraná, Brazil, pp. 257-268 in Phytotaxa 554 (3) on page 265, DOI: 10.11646/phytotaxa.554.3.4, http://zenodo.org/record/6831544 {"references":["Meyer, F. S., Guimaraes, P. J. F. & Goldenberg, R. (2010 a) Tibouchina (Melastomataceae) do estado do Parana, Brasil. Rodriguesia 61: 615 - 638. https: // doi. org / 10.1590 / 2175 - 7860201061405"]} |
| Databáze: | OpenAIRE |
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