Ajello, L. (1941): Cytology and cellular interrelations of cystolith formation in Ficus elastica.–Amer. J. Bot. 28(7): 589–594.

• Crossref
Ajello, L. (1941): Cytology and cellular interrelations of cystolith formation in Ficus elastica.–Amer. J. Bot. 28(7): 589–594. 10.1002/j.1537-2197.1941.tb10981.x)| false
• Search Google Scholar
• Export Citation

Arnott, H. (1980): Carbonates in higher plants, mechanisms of biomineralization in animals and plants.–Tokai University Press, pp. 211–218.

Arnott, H. (1980): Carbonates in higher plants, mechanisms of biomineralization in animals and plants.–Tokai University Press, pp. 211–218.)| false
• Search Google Scholar
• Export Citation

Assaf, H. K., Nafady, A. M. and Kamel, M. S. (2016): Botanical investigation of the leaf and stem of Forsskaolea tenacissima Linn., family Urticaceae, growing in Egypt.–Int. J. Pharm. Sci. 1(1): 12–19.

Assaf, H. K., Nafady, A. M. and Kamel, M. S. (2016): Botanical investigation of the leaf and stem of Forsskaolea tenacissima Linn., family Urticaceae, growing in Egypt.–Int. J. Pharm. Sci. 1(1): 12–19.)| false
• Search Google Scholar
• Export Citation

Boufford, D. E. (1992): Urticaceae, nettle family.–J. Ariz. Nev. Acad. Sci. 26(1): 42–49.

Boufford, D. E. (1992): Urticaceae, nettle family.–J. Ariz. Nev. Acad. Sci. 26(1): 42–49.)| false
• Search Google Scholar
• Export Citation

Burn, M. J. and Mayle, F. E. (2008): Palynological differentiation between genera of the Moraceae family and implications for Amazonian palaeoecology.–Rev. Palaeobot. Palynol. 149: 187–201.

• Crossref
Burn, M. J. and Mayle, F. E. (2008): Palynological differentiation between genera of the Moraceae family and implications for Amazonian palaeoecology.–Rev. Palaeobot. Palynol. 149: 187–201. 10.1016/j.revpalbo.2007.12.003)| false
• Search Google Scholar
• Export Citation

Carr, S. G., Milkovits, L. and Carr, D. J. (1971): Eucalypt phytoglyphs: the microanatomical features of the epidermis in relation to taxonomy.–Aust. J. Bot. 19: 173–190.

• Crossref
Carr, S. G., Milkovits, L. and Carr, D. J. (1971): Eucalypt phytoglyphs: the microanatomical features of the epidermis in relation to taxonomy.–Aust. J. Bot. 19: 173–190. 10.1071/bt9710173)| false
• Search Google Scholar
• Export Citation

Choi, B., Ryu, J. and Jang, T. S. (2022): Can pollen exine ornamentation contribute to species delimitation in Korean Iris L. taxa (Iridaceae)?–Palynology 46(4): 1–9.

• Crossref
Choi, B., Ryu, J. and Jang, T. S. (2022): Can pollen exine ornamentation contribute to species delimitation in Korean Iris L. taxa (Iridaceae)?–Palynology 46(4): 1–9. 10.1080/01916122.2022.2061064)| false
• Search Google Scholar
• Export Citation

Christenhusz, M. J. and Byng, J. W. (2016): The number of known plants species in the world and its annual increase.–Phytotaxa 261: 201–217. doi:

• Crossref
Christenhusz, M. J. and Byng, J. W. (2016): The number of known plants species in the world and its annual increase.–Phytotaxa 261: 201–217. doi: 10.11646/phytotaxa.261.3.1)| false
• Search Google Scholar
• Export Citation

Davis, P. H. and Heywood, V. H. (1963): Principle of angiosperms taxonomy. – Van Nostrand, Princeton, NJ.

Davis, P. H. and Heywood, V. H. (1963): Principle of angiosperms taxonomy. – Van Nostrand, Princeton, NJ.)| false
• Search Google Scholar
• Export Citation

Dopazo, A., Mendez, J. and Seijo, C. (2000): Aplicación de los estudios morfológicos y biométricos a la caracterización de tipospolınicos. – Primera Reunión de la Red de Investigación Aerobiológica de Galicia.

Dopazo, A., Mendez, J. and Seijo, C. (2000): Aplicación de los estudios morfológicos y biométricos a la caracterización de tipospolınicos. – Primera Reunión de la Red de Investigación Aerobiológica de Galicia.)| false
• Search Google Scholar
• Export Citation

Erdtman, G. (1952): Pollen morphology and plant taxonomy: Angiosperms (Vol. 1).–Chronica Botanica, Waltham, Massachusetts.

Erdtman, G. (1952): Pollen morphology and plant taxonomy: Angiosperms (Vol. 1).–Chronica Botanica, Waltham, Massachusetts.)| false
• Search Google Scholar
• Export Citation

Fahn, A. (1988): Secretory tissues in vascular plants.–New Phytol. 108: 229–257.

• Crossref
Fahn, A. (1988): Secretory tissues in vascular plants.–New Phytol. 108: 229–257. 10.1111/j.1469-8137.1988.tb04159.x)| false
• Search Google Scholar
• Export Citation

Fernández Honaine, M., de Rito, M. V. and Osterrieth, M. L. (2018): Análisis de los silicofitolitos presentes en especies de las familias Cannabaceae, Moraceae y Urticaceae del SE bonaerense y estudio comparativo de los cistolitos.–Bol. Soc. Argent. Bot. 53(2): 227–237.

• Crossref
Fernández Honaine, M., de Rito, M. V. and Osterrieth, M. L. (2018): Análisis de los silicofitolitos presentes en especies de las familias Cannabaceae, Moraceae y Urticaceae del SE bonaerense y estudio comparativo de los cistolitos.–Bol. Soc. Argent. Bot. 53(2): 227–237. 10.31055/1851.2372.v53.n2.20580)| false
• Search Google Scholar
• Export Citation

Friis, I. (1993): Urticaceae. – In: Flowering plants. Dicotyledons. Springer, pp. 612–630.

Friis, I. (1993): Urticaceae. – In: Flowering plants. Dicotyledons. Springer, pp. 612–630.)| false
• Search Google Scholar
• Export Citation

Gangadhara, M. and Inamdar, J. (1977): Trichomes and stomata, and their taxonomic significance in the Urticales.–Plant Syst. Evol. 127: 121–137.

• Crossref
Gangadhara, M. and Inamdar, J. (1977): Trichomes and stomata, and their taxonomic significance in the Urticales.–Plant Syst. Evol. 127: 121–137. 10.1007/bf00984146)| false
• Search Google Scholar
• Export Citation

Gifford, E. M. and Foster, A. S. (1989): Morphology and evolution of vascular plants. 3rd edn. – W. Freeman, New York.

Gifford, E. M. and Foster, A. S. (1989): Morphology and evolution of vascular plants. 3rd edn. – W. Freeman, New York.)| false
• Search Google Scholar
• Export Citation

Hammer, Ø., Harper, D. and Ryan, P. (2001): PAST-palaeontological statistics, ver. 1.89.–Pal. Electron. 4: 1–9.

Hammer, Ø., Harper, D. and Ryan, P. (2001): PAST-palaeontological statistics, ver. 1.89.–Pal. Electron. 4: 1–9.)| false
• Search Google Scholar
• Export Citation

Hesse, M., Halbritter, H., Zetter, R., Weber, M., Buchner, R., Frosch-Radivo, A. and Ulrich, S. (2009): Guidelines pollen terminology: an illustrated handbook. – New York, Springer Wien.

Hesse, M., Halbritter, H., Zetter, R., Weber, M., Buchner, R., Frosch-Radivo, A. and Ulrich, S. (2009): Guidelines pollen terminology: an illustrated handbook. – New York, Springer Wien.)| false
• Search Google Scholar
• Export Citation

Huang, T. (1972): Pollen flora of Taiwan. – Botany Department Press, National Taiwan Univ.

Huang, T. (1972): Pollen flora of Taiwan. – Botany Department Press, National Taiwan Univ.)| false
• Search Google Scholar
• Export Citation

Jafari, Z. and Dehghan, M. (2012): Anatomical structure study of aerial organs in four populations of Urtica dioica L.–Acta Hortic. 964: 33–38.

• Crossref
Jafari, Z. and Dehghan, M. (2012): Anatomical structure study of aerial organs in four populations of Urtica dioica L.–Acta Hortic. 964: 33–38. 10.17660/ActaHortic.2012.964.3)| false
• Search Google Scholar
• Export Citation

Janighorban, M. (2001): Flora of Iran: Urticaceae. Vol. 36.–Research Institute of Forests and Rangelands.

Janighorban, M. (2001): Flora of Iran: Urticaceae. Vol. 36.–Research Institute of Forests and Rangelands.)| false
• Search Google Scholar
• Export Citation

Judd, W. S. and Olmstead, R. G. (2004): A survey of tricolpate (eudicot) phylogenetic relationships.–Amer. J. Bot. 91: 1627–1644.

• Crossref
Judd, W. S. and Olmstead, R. G. (2004): A survey of tricolpate (eudicot) phylogenetic relationships.–Amer. J. Bot. 91: 1627–1644. 10.3732/ajb.91.10.1627)| false
• Search Google Scholar
• Export Citation

Kadiri, A. B., Oboh, B. and Oha, C. (2011): Systematic value of foliar epidermal morphology in some taxa of the tribes: Urticeae and Parietariae of the West African Urticaceae.–Thaiszia J. Bot. Košice 21: 73–83.

Kadiri, A. B., Oboh, B. and Oha, C. (2011): Systematic value of foliar epidermal morphology in some taxa of the tribes: Urticeae and Parietariae of the West African Urticaceae.–Thaiszia J. Bot. Košice 21: 73–83.)| false
• Search Google Scholar
• Export Citation

Kadluczka, D., Sliwinska, E. and Grzebelus, E. (2022): Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae).–BMC Plant Biol. 22: 382.

• Crossref
Kadluczka, D., Sliwinska, E. and Grzebelus, E. (2022): Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae).–BMC Plant Biol. 22: 382. 10.1186/s12870-022-03743-1)| false
• Search Google Scholar
• Export Citation

Klimko, M. and Truchan, M. (2006): Morphological variability of the leaf epidermis in selected taxa of the genus Ficus L. (Moraceae) and its taxonomic implications.–Acta Soc. Bot. Pol. 75: 309–324.

• Crossref
Klimko, M. and Truchan, M. (2006): Morphological variability of the leaf epidermis in selected taxa of the genus Ficus L. (Moraceae) and its taxonomic implications.–Acta Soc. Bot. Pol. 75: 309–324. 10.5586/asbp.2006.038)| false
• Search Google Scholar
• Export Citation

Kohl, F. G. (1889): Anatomisch-physiologische Untersuchung der Kalksalze und Kieselsäure in der Pflanze: Ein Beitrag zur Kenntnis der Mineralstoffe im lebenden Pflanzenkörper. – éditeur non identifié.

Kohl, F. G. (1889): Anatomisch-physiologische Untersuchung der Kalksalze und Kieselsäure in der Pflanze: Ein Beitrag zur Kenntnis der Mineralstoffe im lebenden Pflanzenkörper. – éditeur non identifié.)| false
• Search Google Scholar
• Export Citation

Lersten, N. and Curtis, J. (1991): Laminar hydathodes in Urticaceae: survey of tribes and anatomical observations on Pilea pumila and Urtica dioica. –Plant Syst. Evol. 176: 179–203.

• Crossref
Lersten, N. and Curtis, J. (1991): Laminar hydathodes in Urticaceae: survey of tribes and anatomical observations on Pilea pumila and Urtica dioica. –Plant Syst. Evol. 176: 179–203. 10.1007/bf00937906)| false
• Search Google Scholar
• Export Citation

Metcalfe, C. R. (1960): Anatomy of the monocotyledons. 1. Gramineae Anatomy of the monocotyledons 1. Gramineae. – Clarendon Press, London.

Metcalfe, C. R. (1960): Anatomy of the monocotyledons. 1. Gramineae Anatomy of the monocotyledons 1. Gramineae. – Clarendon Press, London.)| false
• Search Google Scholar
• Export Citation

Metcalfe, C. R. and Chalk, L. (1950): Anatomy of the dicotyledons: leaves, stem, and wood, in relation to taxonomy, with notes on economic uses anatomy of the dicotyledons: leaves, stem, and wood, in relation to taxonomy, with notes on economic uses. – Clarendon Press, London.

Metcalfe, C. R. and Chalk, L. (1950): Anatomy of the dicotyledons: leaves, stem, and wood, in relation to taxonomy, with notes on economic uses anatomy of the dicotyledons: leaves, stem, and wood, in relation to taxonomy, with notes on economic uses. – Clarendon Press, London.)| false
• Search Google Scholar
• Export Citation

Metcalfe, C. R. and Chalk, L. (1979): Anatomy of dicotyledons. systematic anatomy of leaf and stem, with a brief history of the subject. 2nd ed., Vol. 1. – Clarendon Press, Oxford.

Metcalfe, C. R. and Chalk, L. (1979): Anatomy of dicotyledons. systematic anatomy of leaf and stem, with a brief history of the subject. 2nd ed., Vol. 1. – Clarendon Press, Oxford.)| false
• Search Google Scholar
• Export Citation

Mete, D., Şahin, A. A., Hamzaoğlu, E. and Pinar, N. M. (2021): Pollen morphology applied to species delimitation of Turkish Dianthus L. (Caryophyllaceae).–Palynology 45(4): 599–625.

• Crossref
Mete, D., Şahin, A. A., Hamzaoğlu, E. and Pinar, N. M. (2021): Pollen morphology applied to species delimitation of Turkish Dianthus L. (Caryophyllaceae).–Palynology 45(4): 599–625. 10.1080/01916122.2021.1879304)| false
• Search Google Scholar
• Export Citation

Moore, P. D., Webb, J. A. and Collison, M. E. (1991): Pollen analysis. – Blackwell Scientific Publications.

Moore, P. D., Webb, J. A. and Collison, M. E. (1991): Pollen analysis. – Blackwell Scientific Publications.)| false
• Search Google Scholar
• Export Citation

Murugesan, K. and Dan, M. (2019): Intraspecific variability in foliar micro-morphology of Pellionia heyneana Wedd. (Urticaceae), from Western Ghats.–Phytomorphology: Int. J. Plant Morphol. 69: 101–112.

Murugesan, K. and Dan, M. (2019): Intraspecific variability in foliar micro-morphology of Pellionia heyneana Wedd. (Urticaceae), from Western Ghats.–Phytomorphology: Int. J. Plant Morphol. 69: 101–112.)| false
• Search Google Scholar
• Export Citation

Patel, R. and Inamdar, J. (1971): Structure and ontogeny of normal and abnormal stomata in vegetative and floral organs of Physalis minima L.–Aust. J. Bot. 19: 85–97.

• Crossref
Patel, R. and Inamdar, J. (1971): Structure and ontogeny of normal and abnormal stomata in vegetative and floral organs of Physalis minima L.–Aust. J. Bot. 19: 85–97. 10.1071/bt9710085)| false
• Search Google Scholar
• Export Citation

Patil, A. and Patil, D. (2011): Occurrence and significance of cystoliths in Acanthaceae.–Curr. Bot. 2: 4.

Patil, A. and Patil, D. (2011): Occurrence and significance of cystoliths in Acanthaceae.–Curr. Bot. 2: 4.)| false
• Search Google Scholar
• Export Citation

Perveen, A., Grafström, E. and El-Ghazaly, G. (2004): World pollen and spore flora 23. Malvaceae Adams. P.p. Subfamilies: Grewioideae, Tilioideae, Brownlowioideae.–Grana 43: 129–155.

• Crossref
Perveen, A., Grafström, E. and El-Ghazaly, G. (2004): World pollen and spore flora 23. Malvaceae Adams. P.p. Subfamilies: Grewioideae, Tilioideae, Brownlowioideae.–Grana 43: 129–155. 10.1080/00173130410000730)| false
• Search Google Scholar
• Export Citation

Pole, M. (2010): Cuticle morphology of Australasian Sapindaceae.–Bot. J. Linn. Soc. 164: 264–292.

• Crossref
Pole, M. (2010): Cuticle morphology of Australasian Sapindaceae.–Bot. J. Linn. Soc. 164: 264–292. 10.1111/j.1095-8339.2010.01086.x)| false
• Search Google Scholar
• Export Citation

Punt, W. and Malotaux, M. (1984): Cannabaceae, Moraceae and Urticaceae. – In: Punt, W. and Clarke, G. C. S. (eds): The northwest European pollen flora, IV. Elsevier, Amsterdam.

Punt, W. and Malotaux, M. (1984): Cannabaceae, Moraceae and Urticaceae. – In: Punt, W. and Clarke, G. C. S. (eds): The northwest European pollen flora, IV. Elsevier, Amsterdam.)| false
• Search Google Scholar
• Export Citation

Punt, W., Hoen, P., Blackmore, S., Nilsson, S. and Le Thomas, A. (2007): Glossary of pollen and spore terminology.–Rev. Palaeobot. Palynol. 143: 1–81.

• Crossref
Punt, W., Hoen, P., Blackmore, S., Nilsson, S. and Le Thomas, A. (2007): Glossary of pollen and spore terminology.–Rev. Palaeobot. Palynol. 143: 1–81. 10.1016/j.revpalbo.2006.06.008)| false
• Search Google Scholar
• Export Citation

Rodriguez-Damian, M., Cernadas, E., Formella, A., Fernández-Delgado, M. and De SaOtero, P. (2006): Automatic detection and classification of grains of pollen based on shape and texture.–IEEE Transactions on Systems, Man, and Cybernetics, Part C (Applications and Reviews) 36(4): 531–542.

• Crossref
Rodriguez-Damian, M., Cernadas, E., Formella, A., Fernández-Delgado, M. and De SaOtero, P. (2006): Automatic detection and classification of grains of pollen based on shape and texture.–IEEE Transactions on Systems, Man, and Cybernetics, Part C (Applications and Reviews) 36(4): 531–542. 10.1109/tsmcc.2005.855426)| false
• Search Google Scholar
• Export Citation

Rost, T. L. (1969): Vascular pattern and hydathodes in leaves of Crassula argentea (Crassulaceae).–Bot. Gaz. 130: 267–270.

• Crossref
Rost, T. L. (1969): Vascular pattern and hydathodes in leaves of Crassula argentea (Crassulaceae).–Bot. Gaz. 130: 267–270. 10.1086/336503)| false
• Search Google Scholar
• Export Citation

Scott, F. M. (1946): Cystoliths and plasmodesmata in Beloperone, Ficus, and Boehmeria.–Bot. Gaz. 107: 372–378.

• Crossref
Scott, F. M. (1946): Cystoliths and plasmodesmata in Beloperone, Ficus, and Boehmeria.–Bot. Gaz. 107: 372–378. 10.1086/335360)| false
• Search Google Scholar
• Export Citation

Selim, M. A. F. (2020): Systematic study on some Urticaceae Juss. species from Egypt.–Taeck holmia 40: 112–129.

• Crossref
Selim, M. A. F. (2020): Systematic study on some Urticaceae Juss. species from Egypt.–Taeck holmia 40: 112–129. 10.21608/taec.2020.38666.1023)| false
• Search Google Scholar
• Export Citation

Setoguchi, H., Okazaki, M. and Suga, S. (1989): Calcification in higher plants with special reference to cystoliths. – In: Origin, evolution, and modern aspects of biomineralization in plants and animals. Springer, pp. 409–418.

Setoguchi, H., Okazaki, M. and Suga, S. (1989): Calcification in higher plants with special reference to cystoliths. – In: Origin, evolution, and modern aspects of biomineralization in plants and animals. Springer, pp. 409–418.)| false
• Search Google Scholar
• Export Citation

Shokefun, E. O., Orijemie, E. A. and Ayodele, A. E. (2014): Foliar epidermal and pollen characters of some species in the genus Microcos Linn. in Nigeria.–Am. J. Plant Sci. 5(26): 3904–3913.

• Crossref
Shokefun, E. O., Orijemie, E. A. and Ayodele, A. E. (2014): Foliar epidermal and pollen characters of some species in the genus Microcos Linn. in Nigeria.–Am. J. Plant Sci. 5(26): 3904–3913. 10.4236/ajps.2014.526409)| false
• Search Google Scholar
• Export Citation

Solereder, H. (1908): Systematic anatomy of the dicotyledons: a handbook for laboratories of pure and applied botany. Vol. 2.–Clarendon Press.

Solereder, H. (1908): Systematic anatomy of the dicotyledons: a handbook for laboratories of pure and applied botany. Vol. 2.–Clarendon Press.)| false
• Search Google Scholar
• Export Citation

Sorsa, P. and Huttunen, P. (1975): On the pollen morphology of the Urticaceae.–JSTOR, pp. 165–182.

Sorsa, P. and Huttunen, P. (1975): On the pollen morphology of the Urticaceae.–JSTOR, pp. 165–182.)| false
• Search Google Scholar
• Export Citation

Stace, C. A. (1984): The taxonomic importance of the leaf surface. – In: Heywood, V. H. and Moore, D. M. (eds): Current concepts in plant taxonomy. Systematic Association Special Volume, No. 25. Academic Press, London, pp. 67–94.

Stace, C. A. (1984): The taxonomic importance of the leaf surface. – In: Heywood, V. H. and Moore, D. M. (eds): Current concepts in plant taxonomy. Systematic Association Special Volume, No. 25. Academic Press, London, pp. 67–94.)| false
• Search Google Scholar
• Export Citation

Stuessy, T. F. (2009): Plant taxonomy: the systematic evaluation of comparative data. – Columbia University Press.

Stuessy, T. F. (2009): Plant taxonomy: the systematic evaluation of comparative data. – Columbia University Press.)| false
• Search Google Scholar
• Export Citation

Sultani, A. H. and Al-shemarri, K. A. (2016): Morphological study of the pollen grains of some species belong to genera Urtica L. and Parietaria L. (Urticaceae) in Iraq.–Iraqi J. Sci. 57: 871–877.

Sultani, A. H. and Al-shemarri, K. A. (2016): Morphological study of the pollen grains of some species belong to genera Urtica L. and Parietaria L. (Urticaceae) in Iraq.–Iraqi J. Sci. 57: 871–877.)| false
• Search Google Scholar
• Export Citation

Ullah, F., Gao, Y. D., Zaman, W. and Gao, X. F. (2022): Pollen morphology of Rosa sericea complex and their taxonomic contribution.–Diversity 14(9): 705.

• Crossref
Ullah, F., Gao, Y. D., Zaman, W. and Gao, X. F. (2022): Pollen morphology of Rosa sericea complex and their taxonomic contribution.–Diversity 14(9): 705. 10.3390/d14090705)| false
• Search Google Scholar
• Export Citation

Ummu-Hani, B. and Noraini, T. (2013): The structure of cystoliths in selected taxa of the genus Ficus L. (Moraceae) in Peninsular Malaysia. – In: AIP Conference Proceedings, vol 1. American Institute of Physics, pp. 372–376.

Ummu-Hani, B. and Noraini, T. (2013): The structure of cystoliths in selected taxa of the genus Ficus L. (Moraceae) in Peninsular Malaysia. – In: AIP Conference Proceedings, vol 1. American Institute of Physics, pp. 372–376.)| false
• Search Google Scholar
• Export Citation

Weddell, H. A. (1856): Monographie de la famille des Urticées. Vol. 9.–Gide et J. Baudry, Hugues Algernon Weddell.

Weddell, H. A. (1856): Monographie de la famille des Urticées. Vol. 9.–Gide et J. Baudry, Hugues Algernon Weddell.)| false
• Search Google Scholar
• Export Citation

Wodehouse, R. P. (1935): Pollen grains. Their structure, identification and significance in science and medicine. – McGraw-Hill.

Wodehouse, R. P. (1935): Pollen grains. Their structure, identification and significance in science and medicine. – McGraw-Hill.)| false
• Search Google Scholar
• Export Citation

Wu, Z. Y., Monro, A. K., Milne, R. I., Wang, H., Yi, T. S., Liu, J. and Li, D. Z. (2013): Molecular phylogeny of the nettle family (Urticaceae) inferred from multiple loci of three genomes and extensive generic sampling.–Mol. Phyl. Evol. 69: 814–827.

• Crossref
Wu, Z. Y., Monro, A. K., Milne, R. I., Wang, H., Yi, T. S., Liu, J. and Li, D. Z. (2013): Molecular phylogeny of the nettle family (Urticaceae) inferred from multiple loci of three genomes and extensive generic sampling.–Mol. Phyl. Evol. 69: 814–827. 10.1016/j.ympev.2013.06.022)| false
• Search Google Scholar
• Export Citation