Restio, 309.
Restrepia, 332.
Retama, 472.
Reticularia, 8.
Retinospora, 268.
Rhamnaceæ, 447, 449.
Rhamnus, 151, 448.
Rhaphidophora, 305.
Rhatany, 468.
Rheum, 151, 359, 360.
Rhinanthaceæ, 153.
Rhinantheæ, 525, 526.
Rhinanthus, 526.
Rhingia, 320.
Rhipidium, 320.
Rhipsalis, 375, 376, 377.
Rhizidiaceæ, 103.
Rhizoboleæ, 415.
Rhizocarpeæ, 205, 215.
Rhizoclonium, 58.
Rhizoids, 4, 10.
Rhizomorpha, 169, 170.
Rhizopaceæ, 99.
Rhizophora, 482, 486, 487, 513.
Rhizophoraceæ, 482, 486.
Rhizophyllidaceæ, 84.
Rhizophyllis, 84.
Rhizopods, 5.
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