Fig 2

Selected bilobate sub-morphotypes retrieved from the studied grasses. Light microscopic images (1-33) and scanning electron microscopic images (64-61). (Small bilobate with short shank and convex-convex ends – 1. Panicum paludosum), (Small bilobate with medium shank and convex-convex ends – 2. Brachiaria milliformis, 34. Leersia hexandra), (Small bilobate with long shank and convex-convex ends – 3. Digitaria setigera, 35. Chrysopogon aciculatus), (Small bilobate with nodular shank and convex-convex ends – 4. Oplismenus burmanni, 36. Setaria verticillata), (Small bilobate with short shank and concave-concave ends 5. Arundo donax, 37. Digitaria compacta), (Small bilobate with medium shank and concave-concave ends – 38. Oryza sativa), (Small bilobate with long shank and concave-concave ends – 6. Paspalidium geminatum, 39. Digitaria ciliaris), (Small bilobate with nodular shank and concave-concave ends – 7. Setaria barbata, 40. Themeda arundinacea), (Small bilobate with short shank straight-straight ends – 41. Setaria glauca), (Small bilobate with short shank and concave-convex ends – 8, (Small bilobate with medium shank and concave-convex ends – 9. Panicum repens), (Small bilobate with spiny shank and concave-convex ends – 10. Setaria verticillata), (Small bilobate with medium shank and convex-straight ends – 11. Setaria palmifolia), (Small bilobate with long shank and convex-straight ends – 12, Digitaria bicornis, 43. Chrysopogon aciculatus, ), (Small bilobate with short shank and concave-straight ends – 42. Eriochloa procera), (Small bilobate with long shank and concave-straight ends – 13. Digitaria compacta), (Medium bilobate with short shank and convex-convex ends – 14. Panicum flavidium ), (Medium bilobate with medium shank and convex-convex ends – 15. Leptochloa chinensis, (Medium bilobate with long shank and convex-convex ends 16. Imperata cylindrica var. major, 44. Setaria palmifolia), (Medium bilobate with spiny shank and convex-convex ends – 17. Paspalum longifolium), (Medium bilobate with short shank and concave-concave ends – 46. Paspalidium punctatum), (Medium bilobate with medium shank and concave-concave ends – 18.Oryza sativa, 48. Thysanolaena maxima), (Medium bilobate with nodular shank and convex-convex ends – 47. Echinochloa stagnina), (Medium bilobate with short shank and concave-convex ends – 20. Setaria pallide-fusca), (Medium bilobate with medium shank and concave-convex ends – 45. Digitaria violascens), (Medium bilobate with long shank and concave-convex ends 21. Digitaria ciliaris), (Medium bilobate with nodular shank and concave-convex ends – 22. Oplismenus burmanni), (Medium bilobate with medium shank and straight-straight ends – 49. Heteropogon contortus), (Medium bilobate with short shank and convex-straight ends – 50. Saccharum officinarum), (Medium bilobate with medium shank and scooped ends 51. Oryza sativa), (Large bilobate with short shank and convex-convex ends – 23. Panicum flavidium), (Large bilobate with medium shank convex-convex ends – 52. Hymenachne amplexicaulis), (Large bilobate with long shank convex-convex ends – 25. Aristida adscensionis, 53. Heteropogon contortus), (Large bilobate with spiny shank and convex-convex ends – 24. Digitaria timorensis), (Large bilobate with medium shank and concave-concave ends – 26. Tritichum aestivum), (Large bilobate with medium shank and convex-concave ends – 54. Hymenachne amplexicaulis), (Large bilobate with long shank and convex-concave ends – 27. Saccharum spontaneum), (Large bilobate with nodular shank and concave-concave ends – 55. Brachiaria subquadripara), Large bilobate with long shank and convex-straight ends – 28. Heteropogon sp.), (Large bilobate with medium shank and concave-straight ends – 29. Setaria glauca), (Large bilobate with long shank and concave-straight ends – 56. Leptochloa filiformis), (Large bilobate with short shank and scooped ends– 57. Oryza rufipogon), (Very large bilobate with short shank and convex-convex ends – 30. Setaria palmifolia, (Very large bilobate with medium shank and convex-convex ends – 58. Echinochloa crus-galli), Very large bilobate with long shank and convex-convex ends – 31. Heteropogon sp., 59. Digitaria abludens), (Very large bilobate with short shank and concave-concave ends – 32. Echinochloa frumentacea), (Very large bilobate with medium shank and concave-concave ends – 61. Brachiaria milliformis), (Very large bilobate with nodular shank and concave-concave ends – 60. Echinochloa frumentacea), (Very large bilobate with medium shank and convex-concave ends – 33. Eriochloa procera