It has been revealed that Paulownia is characterized by a distinctive combination of palynomorphological characters, which suggests its isolated phylogenetic position and difference from other members of related families, which is consistent with the molecular phylogenetic data that substantiate the recognition of the separate family Paulowniaceae. Original palynomorphological data and their comparison with published data indicated that pollen grains of Pawlownia are 3-colporate, oblate-spheroidal, sometimes spheroidal in shape, in polar view 3-lobed or rounded-triangular, in equatorial view circular; small-sized, sometimes to medium-sized, with reticulate exine sculpture. The generalized palynomorphological data on Paulownia are compared with the features of pollen grains in representatives of Bignoniaceae, Scrophulariaceae, Orobanchaceae, Plantaginaceae, and Phrymaceae.

Keywords: pollen grains, morphology, sculpture, taxonomy, phylogeny, Paulownia, Paulowniaceae, Scrophulariaceae, Bignoniaceae

Full text: PDF (Ukr) 922K

1. Angiosperm Phylogeny Group II (APG II). Bot. J. Linnean Soc., 2003, 141: 399—436. https://doi.org/10.1046/j.1095-8339.2003.t01-1-00158.x
2. Angiosperm Phylogeny Group III (APG III). Bot. J. Linnean Soc., 2009, 161: 105—121. https://doi.org/10.1111/j.1095-8339.2009.00996.x
3. Argue C.L. Amer. J. Bot., 1980, 67(1): 68—87. https://doi.org/10.2307/2442538
4. Argue C.L. Amer. J. Bot., 1981, 68(2): 200—205. https://doi.org/10.2307/2442851
5. Argue C.L. Can. J. Bot., 1983, 61: 53—62. https://doi.org/10.1139/b83-004
6. Argue C.L. Can. J. Bot., 1984, 62: 1287—1297. https://doi.org/10.1139/b84-174
7. Bennet J.R., Mathews S. Amer. J. Bot., 2006, 93(7): 1039—1051. https://doi.org/10.3732/ajb.93.7.1039
8. Buurman J. Pollen et Spores, 1977, 19(4): 447—519.
9. Chadwell T.B., Wagstaff S.J. Syst. Bot., 1992, 17(2): 210—219. https://doi.org/10.2307/2419518
10. Chen Zhiyan. J. Wuhan Bot. Res., 1983, 1: 144—146.
11. Erdtman G. Pollen morphology and plant taxonomy. Angiosperms, Stockholm: Almqvist & Wiksell, 1952, 539 p.
12. Ferguson I.K., Santisuk T. Kew Bull., 1973, 28(2): 187—194. https://doi.org/10.2307/4119778
13. Gentry A.H., Tomb A.S. Ann. Missouri Bot. Gard., 1979, 66: 756—777. https://doi.org/10.2307/2398917
14. Grigor'eva V.V., Tokarev P.I. Palinologiya: teoriya i praktika: Mat-ly XI Vseros. palinolog. konf., M.: PIN RAN, 2005, S. 61—62.
15. Halbritter H. PalDat — a palynological database: Descriptions, illustrations, identification, and information retrieval. http://www.paldat.org
16. Ivanina L.I. Flora evrop. chasti SSSR, L.: Nauka, 1981, T. 5, S. 288—300.
17. Kupriyanova L.A., Aleshina L.A. Pyl'ca i spory rasteniy flory evropeyskoy chasti SSSR, L.: Nauka, 1972, T. 1, 170 s.
18. McNeal J.R., Bennett J.R., Wolfe A.D., Mathews S. Amer. J. Bot., 2013, 100: 971—983. https://doi.org/10.3732/ajb.1200448
19. Mosyakin S.L. Ukr. botan. zhurn., 2013, 70(30): 289—307.
20. Olmstead R. (with the help of: D. Albach, B. Bremer, P. Cantino et al.) A synoptical classification of the Lamiales. Version 2.4 (updated 26 July, 2012) (http://depts.washington.edu/phylo/Classification.pdf)
21. Olmstead R.G., DePamphilis C.W., Wolfe A.D., Young N.D. Elisons W.J., Reeves P.A. Amer. J. Bot., 2001, 88(2): 348—361. https://doi.org/10.2307/2657024
22. Oxelman B., Kornhall P., Olmstead R.G., Bremer B. Taxon, 2005, 54: 411—425. https://doi.org/10.2307/25065369
23. Punt W., Blackmore S., Nilsson S., Le Thomas A. Glossary of pollen and spore terminology, Utrecht: LPP Foundation, 1994, 71 p.
24. Refulio-Rodriguez N.F., Olmstead R.G. Amer. J. Bot., 2014, 101(2): 287—299. https://doi.org/10.3732/ajb.1300394
25. Reveal J.L. Phytoneuron, 2012, 2012-37: 1—221.
26. Schäferhoff B., Fleischmann A., Fischer E., Albach D.C., Borsch T., Heubl G., Müller K.F. BMC Evolutionary Biology, 2010, 10: 352—374. https://doi.org/10.1186/1471-2148-10-352
27. Takhtajan A. Flowering Plants, Springer Verlag, 2009, 871 p. https://doi.org/10.1007/978-1-4020-9609-9
28. Takhtajan A.L. Diversity and classification of flowering plants, New York: Columbia Univ. Press, 1997, 663 p.
29. Takhtajan A.L. Sistema i filogeniya cvetkovykh rasteniy, M.; L.: Nauka, 1966, 611 s.
30. Takhtajan A.L. Sistema magnoliofitov, L.: Nauka, 1987, 439 s.
31. Tokarev P.I. Morfologiya i ul'trastruktura pyl'cevykh zeren, M.: T-vo nauchn. izd. KMK, 2002, 51 s.
32. Tsymbaliuk Z.M. Nauk. zap. NaUKMA. Biol. ta ekol., 2014, 143: 28—33.
33. Tsymbaliuk Z.M., Mosyakin S.L. Atlas pylkovykh zeren predstavnykiv rodyn Plantaginaceae ta Scrophulariaceae, K.: Nash format, 2013, 276 s.
34. Tsymbaliuk Z.M., Mosyakin S.L. Ukr. botan. zhurn., 2013a, 70(5): 600—609.
35. Tsymbaliuk Z.M., Mosyakin S.L. Ukr. botan. zhurn., 2013b, 70(6): 723—731.
36. Tsymbaliuk Z.M., Mosyakin S.L. Ukr. botan. zhurn., 2014, 71(4): 442—448.
37. Wei Z.X. Acta Bot. Yunnan, 1989, 1: 65—70.
38. Zhou Q.-M., Liu G.-L., Wang S., Li H.-Q. Plant Syst. Evol., 2014, 300(9): 2009—2017. https://doi.org/10.1007/s00606-014-1029-5