Stigma morphological study and numerical taxonomy of genus Pedicularis L. (Orobanchaceae) in Iran

Authors

University of Guilan, Rasht

Abstract
Pedicularis L. (Orobanchaceae) is a large hemiparasitic genus, distributed mostly over boreal and arctic-alpine regions of the northern hemisphere. In the present study 9 species of the genus that are reported in flora of Iran, were undertaken for stigma morphological study and numerical analysis. The stigmatic surface is even in P. pycnantha and P. wilhelmsiana, is expanded into a subspherical shape in P. cabulica, P. caucasica, P. rechingeri, P. sibthorpii, P. condensata and P. strausii and is conical form in P. rhinanthoides. To determine the relationship between species, numerical analysis was carried out using 45 quantitative and qualitative morphological, anatomical and palynological characters. UPGMA and PCA dendrograms were drawn. According to the results some characters such as the thickness of pericarp, the thickness of spongy parenchyma, the length of stem, the thickness of bark, the thickness of stem and the length of midrib are the most variable, and can be used for identification and determination of relationship between species.

Keywords


Linnaeus, C. 1737. – Genera Plantarum, Leiden. Mill, R.R. 2001. Notes relating to the flora of Bhutan: XLIII. Scrophulariaceae (Pedicularis). – Edinburgh J. Bot. 58:57-98.
Olmstead, R.G., dePamphilis, C.W., Wolfe, A.D., Young, N.D., Elisens, W.J. and Reeves, P.J. 2001. Disintegration of Scrophulariaceae. – American Journal of Botany 88: 348–361.
Ree, R.H. 2005. Phylogeny and the evolution of floral diversity in Pedicularis (Orobanchaceae). – Int. J. Plant Sci. 166:595–613.
Rohlf, F.J. 2000. – NTSYS-pc, Numerical Taxonomy and Multivariate Analysis System, Version 2.1. Exeter Publications, New York, USA.
Saeidi Mehrvarz, Sh. 2006. Notes of the genus Pedicularis (Scrophulariaceae) in Iran. – Iran. J. Bot. 11: 241-245.
Saiedi Mehrvarz, Sh., Parsapanah, S. and Beygom Faghir, M. 2013. A palynological study of the genus Pedicularis (Orobanchaceae) in Iran. – Wildenowia 43: 279-285.
Saeidi Mehrvarz, Sh., Sobhani, S. and Bakhshi Khaniki, G. 2006b. Fruit anatomy of the genus Pedicularis (Scrophulariaceae) from Iran. OT Sistematik Botanik Dergisi 13: 17- 22.
Sneath, P.H.A. and Sokal, R.R. 1973. – Numerical taxonomy the principles dpractice of numerical classification. (W.H. Freeman: San Francisco).

Wang, H. and Li, D.Z. 2005. Pollination biology of four Pedicularis species (Scrophulariaceae) in northwestern Yunnan, China.
Ann. Missouri Bot. Gard. 92: 127–138.
Wang, H., Mill, R.R. and Blackmore, S. 2003. Pollen morphology and infrageneric evolutionary relationships in some Chinese species of Pedicularis (Scrophulariaceae). – Pl. Syst. Evol. 237:1–17.
Wendelbo, P. 1981. Pedicularis L. in K.H. Rechinger (ed.). – Flora Iranica 147: 25-165. Yang, C.F., Guo, Y.H., Giture, R.W. and Sun, S.G. 2002. Variation in stigma morphology—how does it contribute to pollination adaptation in Pedicularis (Orobanchaceae). – Pl. Syst. Evol. 236: 89–98.
Yang, F.S. and Wang, X.Q. 2007. Extensive length variation in the cpDNA trnT-trnF region of hemiparasitic Pedicularis and its phylogenetic implications. – Pl. Syst. Evol. 264: 251-264.
Yu, W.B. and Wang, H. 2008. Pollen morphology of Pedicularis sect. Cyathophora, a group endemic to the eastern Himalaya-Hengduan mountains region. – J. Integr. Pl. Biol. 50: 224– 252.
Zhang, L., Wang, X. and Du, G. 2011. Primary floral allocation per flower in 12 Pedicularis (Orobanchaceae) species: significant effect of two distinct rewarding types for pollinators. – J. Plant Res. 124: 655-661.
Zhang, Z.X., Xie, W.D. and Jia, Z.J. 2007. Glycosides from two Pedicularis species. – Biochemical Systematics and Ecology 36: 462- 464.

  • Receive Date 08 June 2026
  • Publish Date 08 June 2026