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  1. Indigo and Ochre I
  2. Indigo and Ochre II
  3. Watercolor Herbs V
  4. Herb Chart on Black
  5. Watercolor Herbs IV
  6. Very old olive tree, Kefalonia, Ionian Islands, Greece
  7. Dandelion - Botanical Illustration
  8. Herb Chart
  9. Typical Animal Cell and Plant Cell
  10. Mushroom Chart I
  11. Redwood forest, Ventana, Big Sur, California
  12. My Greenhouse Botanical I
  13. Volvox colony, light micrograph
  14. Spirogyra algae, light micrograph
  15. Cumberland Gap, Kentucky
  16. Watermark Foliage III
  17. Winter flowers and almond trees in blossom in Lower Galilee, Israel, Middle East
  18. Horse Chestnut - Botanical Illustration
  19. My Greenhouse Botanical IV
  20. Ocho Rios, Jamaica, West Indies, Caribbean, Central America
  21. In the Forest IX
  22. My Greenhouse Botanical II
  23. Window with shutters and window box, Italy
  24. Cell
  25. Cell
  26. Orchid, Antigua, West Indies, Caribbean
  27. Apple Tree - Botanical Illustration
  28. Watermark Foliage IV
  29. Sunflower - Botanical Illustration
  30. Botanical Floral Chart I Black And White
  31. Bluebird Branch II
  32. Bracken rhizome, light micrograph
  33. In the Forest VIII
  34. Plant cell
  35. Fall Bouquet
  36. Heroic Peony
  37. Sub-tropical forest and coastline, Hunting Island State Park, South Carolina
  38. My Greenhouse Botanical III
  39. Castor oil stem, light micrograph
  40. Geraniaceae Plate 319
  41. Cherry Tree - Botanical Illustration
  42. Wood. Scanning electron microscope (SEM)
  43. Growth rings of a scots pine tree
  44. Neutral Botanical III
  45. Wild Flowers
  46. Geraniaceae Plate 306
  47. Mistletoe - Botanical Illustration
  48. Magnolia Flowers, 19th-Century Artwork