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  • TITLE
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • CONTENTS
  • ABSTRACT
  • I. INTRODUCTION
  • II. MATERIAL AND METHODS
  • III. REVIEW OF THE LITERATURE
  • REPORTS ON THE FAMILY
  • MORPHOLOGICAL STUDIES
  • ECOLOGICAL STUDIES
  • ANATOMICAL STUDIES
  • PHYTOCHEMICAL STUDIES
  • SEED GERMINATION STUDIES
  • TAXONOMIC REVISIONS
  • CYTOLOGICAL STUDIES
  • POLLEN MORPHOLOGY
  • EMBRYOLOGICAL STUDIES
  • AFFINITIES
  • IV. OBSERVATIONS
  • Key to the Genera
  • 1. INDOTRISTICHA (Wight) Van Royen
  • I. ramosissima
  • Fig. 1 Indotristicha ramosissima (Wt.) van Royen
  • Fig. 2 Indotristicha ramosissima (Wt.) van Royen
  • 2. DALZELLIA Wight
  • a. D. gracilis
  • Fig. 3 Dalzellia gracilis Mathew, Jager-Zurn, Nileena
  • Fig. 4 Dalzellia gracilis Mathew, Jager-Zurn, Nileena
  • PLATE 1Dalzellia gracilis Mathew, Jager-Zurn, Nileena
  • b. D. ceylanica
  • Fig. 5 Dalzellia ceylarzica (Gardn.) Wt.
  • Fig. 6 Dalzellia ceylanica (Gardn.) Wt.
  • Fig. 7 Dalzellia ceylanica (Gardn.) Wt.
  • Fig. 8 Dalzellia ceylanica (Gardn.) Wt.
  • PLATE 2 Dalzellia ceylanica (Gardn.) Wt.
  • PLATE 3 Dalzellia ceylanica (Gardn.) Wt.
  • Intraspecific comparison of D. ceylanica (Table 1)
  • 3. POLYPLEURUM (Taylor ex Tulasne) Warming
  • a. P. stylosum
  • Fig. 9 Polypleurum stylosum (Wt.) Hall.
  • Fig. 10 Polypleurum stylosum (Wt.) Hall.
  • Fig. 11 Polypleurum stylosum (Wt.) Hall.
  • Intraspecific comparison of P. stylosum (Table 2)
  • b. P. prostratum
  • Fig. 12 Polypleurum prostratum Mathew el Nileena
  • Fig. 13 Polypleurum prostratum Mathew et Nileena
  • Fig. 14 Polypleurum prostratum Mathew et Nileena
  • PLATE 4 Polypleurum prostratum Mathew et Nileena
  • Intraspecific comparison of P. pro stratum (Table 3)
  • c. P. minor
  • Fig. 15 Polypleurum minor (Wedd.) Nagendran, Arekal etSubramanyam
  • Fig. 16 Polypleurum minor (Wedd.) Nagendran, Arekal etSubramanyam
  • Fig. 17 Polypleurum minor (Wedd.) Nagendran, Arekal elSubramanyam
  • Intraspecific comparison of P. minor (Table 4)
  • d. P. disciformum
  • Fig. 18 Polypleurum disciformum Mathew et Nileena
  • Fig. 19 Polypleurum disciformum Mathew et Nileena
  • Intraspecific comparison of P. disciformum (Table 5)
  • 4. CLADOPUS H Moller
  • C. hookerianus
  • Fig. 20 Cladopus hookeriallus (Tul.) C. Cusset.
  • Fig. 21 Cladopus hookerianus (Tul.) C. Cusset
  • 5. FARMERIA Willis
  • F metzgeriodes
  • Fig. 22 Farmeria metzgerioides (Trimen) Willis
  • Fig. 23 Farmeria metzgerioides (Trimen) Willis
  • PLATE 5 Farmeria metzgeriodes (Trimen) Willis
  • 6. MAFERRIA C. Cusset, gen. nov.
  • M. indica
  • Fig. 24 Maferria indica (Willis) C. Cusset
  • Fig. 25 Maferria indica (willis) C.Cusset
  • PLATE 6 Maferria indica (Willis) C. Cusset
  • 7. HYDROBRYOPSIS Engler
  • a. H. sessilis
  • Fig. 26 Hydrobryopsis sessilis (Willis) Engl.
  • Fig. 27 Hydrobryopsis sessilis (Willis) Engl.
  • Intraspecific comparison of H. sessilis (Table 6)
  • 8. WILLISIA Warming
  • a. W. selaginoides
  • Fig. 28 Willisiu seluginoides (Bedd.) Warm. ex Willis
  • PLATE 7 Willisin selaginoides (Bedd.) Warm. ex Willis
  • PLATE 8 Willisia selaginoides (Bedd.) Warm. ex Willis
  • b. W. arekaliana
  • 9. PODOSTEMUM Michx.
  • a. P. subulatum
  • Fig. 29 Podostemum subulaturm Gardn.
  • Fig. 30 Podostemum subulatum Gardn.
  • Fig. 31 Podostemum subulatum Gardn.
  • PLATE 9 Podostemum subulatum Gardn.
  • Intraspecific comparison of P. subulatum (Table 7)
  • b. P. munnarense
  • Fig. 32 Podostemum munnarense (Nag & Arekal) Mathew & Satheesh
  • Fig. 33 Podostemum munnarense (Nag & Arekal Mathew & Satheesh
  • 10. ZEYLANIDIUM (Tul.) Engler
  • a. Z. olivaceum
  • Fig. 34 Zeylanidium olivaceum (Gardn.) Engl.
  • Fig. 35 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 10 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 11 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 12 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 13 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 14 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 15 Zeylanidium Olivaceum (Gardn.) Engl.
  • PLATE 16 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 17 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 18 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 19 Zeylanidium olivaceum (Gardn.) Engl.
  • PLATE 20 Zeylanidium olivaceum (Gardn.) Engl.
  • Intraspecific comparison of Z olivaceum (Table 8)
  • b. Z. maheshwarii
  • Fig. 36 Zeylanidium maheshwarii Mathew & Satheesh
  • c. Z. lichenoides
  • Fig. 37 Zeylanidium lichenoides (Kurz) Engl.
  • Fig. 38 Zeylanidium lichenoides (Kurz) Engl.
  • Fig. 39 Zeylanidium lichenoides (Kurz) Engl.
  • PLATE 21 Zeylanidium lichenoides (Kurz) Engl.
  • Intraspecific comparison of Z. lichenoides. (Table 9)
  • V. DISCUSSION AND CONCLUSIONS
  • Dalzellia
  • Polypleurum
  • Evolutionary trends in the genus Polypleurum
  • Cladopus
  • Farmeria and Maferria
  • Podostemum
  • Comments regarding the transfer of Asian Podostemum to Zeylanidium
  • Zeylanidium
  • Hydrobryopsis
  • Evolutionary trends in the family Podostemaceae
  • Scope for further research and need for preservation of Podostemaceae
  • Interspecific comparison table of Dalzellia gracilis and D. ceylanica. (Table 10)
  • Interspecific comparison of Polypleurum spp. (Table 11)
  • Intergeneric comparison of Farmeria and Maferria (Table 12) Interspecific comparison of Podostemum spp. (Table 13)
  • Intergeneric comparison of Podostemum and Zeylanidiuin. (Table 14)
  • Intergeneric Comparison of Podostemum and Zeylanidium
  • VI. DETAILS OF SPECIMENS USED FOR RESEARCH
  • 1. INDOTRISTICHA RAMOSISSIMA
  • 2. DALZELLIA GRACILIS
  • 3. DALZELLIA CEYLANICA
  • 4. POLYPLEURUM STYLOSUM
  • 5. POLYPLEURUM PROSTRATUM
  • 6. POLYPLEURUM MINOR
  • 7. POLYPLEURUM DISCIFORMUM
  • 8. CLADOPUS HOOKERIANUS
  • 9. FARMERIA METZGERIOIDES
  • 10. MAFERRIA INDICA
  • 11. HYDROBRYOPSIS SESSILIS
  • 12. WILLISIA SELAGINOIDES
  • 13. WILLISIA AREKALIANA
  • 14. PODOSTEMUM SUBULATUM
  • 15. PODOSTEMUM MUNNARENSE
  • 16. ZEYLANIDIUM OLIVACEUM
  • 17. ZEYLANIDIUM MAHESHWARII
  • 17. ZEYLANIDIUM LICHENOIDES
  • List of specimens received from Prof. C. Thomas Philbrick
  • VII. LIST OF REFERENCES
  • PAPER PUBLISHED