The _Martagons_ fall naturally into several groups. The first group, which we might call the swamp lilies,[7] includes _L. Superbum_, _L. Canadense_, _L. Pardalinum_, _L. Roezlii_, and one or two new species. All these lilies have but slightly recurved flowers and rhizomatose bulbs. They are all natives of North America. Another group which we might call the true _Martagons_ would include _L. Martagon_, _L. Pomponium_, _L. Pyrenaicum_, _L. Avenaceum_, _L. Tenuifolium_, _L. Callosum_, _L. Chalcedonicum_, and _L. Hansoni_, etc. _L. Humboldti_ is different from any other lily in many points. Its bulb somewhat resembles that of _L. Washingtonianum_. _L. Polyphyllum_ and _L. Monadelphum_ much resemble each other in the form of their flowers. _L. Testaceum_ is a hybrid. _L. Ponticum_ is a variety of _L. Monadelphum_. _L. Lucidum_ is unknown to us. We are not going to adhere to this division. The one we are about to tabulate seems to us to be more useful. It is tentative, and is subject maybe to grave objections; but on the whole we think that it will be more generally useful to the lily grower. Obviously it is founded on the former classification, and we have used the names of the groups which are generally accepted. We append no description to each group, for, though we could do so if we were pressed, we wish it to be clearly understood that the division is purely experimental, as what classification is not? GROUP I.—_Cardiocrinum._ 1. _Giganteum._ 2. _Cordifolium._ GROUP II.—_Eulirion._ _Longiflorum_ Section: 3. _Longiflorum._ 4. _Formosanum._ 5. _Philippinense._ 6. _Wallichianum._ 7. _Neilgherrense._ _Japonicum_ Section: 8. _Japonicum Odorum._ 9. _Brownii._ _Candidum_ Section: 10. _Candidum._ _Washingtonianum_ Section: 11. _Washingtonianum._ 12. _Parryi._ 13. _Nepaulense._ 14. _Lowi._ GROUP III.—_Archelirion._ _Auratum_ Section: 15. _Auratum._ 16. _Speciosum._ _Krameri_ Section: 17. _Krameri._ 18. _Rubellum._ _Tigrinum_ Section: 19. _Tigrinum._ 20. _Leichtlini._ 21. _Maximowiczi._ 22. _Henryi._ GROUP IV.—_Isolirion._ 23. _Bulbiferum._ 24. _Catesbaei._ 25. _Batmanniae._ 26. _Wallacei._ 27. _Philadelphicum._ 28. _Elegans._ 29. _Croceum._ 30. _Davuricum._ GROUP V.—_Martagon._ True _Martagon_ Section: 31. _Martagon._ 32. _Pomponium._ 33. _Pyrenaicum._ 34. _Hansoni._ 35. _Medeoloides._ 36. _Avenaceum._ 37. _Callosum._ 38. _Tenuifolium._ 39. _Carniolicum._ 40. _Chalcedonicum._ Swamp-lily Section: 41. _Columbianum._ 42. _Humboldti._ 43. _Canadense._ 44. _Parvum._ 45. _Maritimum._ 46. _Superbum._ 47. _Roezlii._ 48. _Pardalinum._ 49. _Californicum._ 50. _Grayi._ _Monadelphum_ Section: 51. _Monadelphum._ 52. _Polyphyllum._ GROUP VI. 53. _Concolor._ 54. _Davidii._ GROUP VII. 55. _Oxypetalum._ 56. _Roseum._ 57. _Hookeri._ There are therefore fifty-seven distinct species of lilies; but of these there are over one hundred and twenty varieties. Besides these there are four double-flowered varieties, and four definite hybrids.