Melobesia, 80, 84.
Melocactus, 375, 377.
Melochia, 422.
Melogrammataceæ, 130.
Melon, 481.
Melosira, 19.
Melosireæ, 21.
Menispermaceæ, 390.
Menispermum, 390.
Mentha, 47, 536, 539, 541.
Menthol, 541.
Mentzelia, 476.
Menyantheæ, 542, 543.
Menyanthes, 240, 543, 550.
Menziesia, 509.
Mercurialis, 431, 434.
Mercury, 431.
Merendera, 310.
Mericarp, 492.
Meridieæ, 21.
Merismopedium, 10, 24.
Merismopedium form, 27.
Mertensia, 533.
Merulius, 166.
Mesembrianthemeæ, 375.
Mesembrianthemum, 375.
Mesocarpaceæ, 46.
Mesomycetes, 1, 95, 108.
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