ium 7 ,,
18. Lipochaeta 11 ,,
19. Campylotheca 12 ,,
20. Argyroxiphium 2 ,,
21. Wilkesia 2 ,,
22. Dubautia 6 ,,
23. Raillardia 12 ,,
24. Hesperomannia 2 ,,
25. Brighamia 1 Lobeliaceae.
26. Clermontia (berry) 11 ,,
27. Rollandia 6 ,,
28. Delissea 7 ,,
29. Cyanea 28 ,,
30. Labordea 9 Loganiaceae.
31. Nothocestrum 4 Solanaceae.
32. Haplostachys (nucules dry) 3 Labiatae.
33. Phyllostegia (nucules fleshy) 16 ,,
34. Stenogyne (nucules fleshy) 16 ,,
35. Nototrichium 3 Amarantaceae.
36. Charpentiera 2 ,,
37. Touchardia 1 Urticaceae.
38. Neraudia 2 ,,
----
Total 254 species.
The great preponderance of the two orders Compositae and Lobeliaceae are
what first strike us in this list. In the former case the facilities for
wind-dispersal afforded by the structure of so many of the seeds render it
comparatively easy to account for their having reached the islands at an
early period. The Lobelias, judging from Hildebrand's descriptions, may
have been transported in several {328} different ways. Most of the endemic
genera are berry-bearers and thus offer the means of dispersal by
fruit-eating birds. The endemic species of the genus Lobelia have sometimes
very minute seeds, which might be carried long distances by wind, while
other species, especially Lobelia gaudichaudii, have a "hard, almost woody
capsule which opens late," apparently well adapted for floating long
distances. Afterwards "the calycine covering withers away, leaving a
fenestrate woody network" enclosing the capsule, and the seeds themselves
are "compressed, reniform, or orbicular, and margined," an
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