Rhizopogon, 175, 176.
Rhizopus, 99.
Rhizosolenia, 20.
Rhodanthe, 573.
Rhodiola, 451, 452.
Rhodochiton, 525.
Rhododendron, 161, 508.
Rhodomela, 83.
Rhodomelaceæ, 83.
Rhodophyceæ, 1, 14, 77.
Rhodophyll, 77.
Rhodophyllidaceæ, 83.
Rhodophyllis, 83.
Rhodoraceæ, 335, 508.
Rhodotypus, 457.
Rhodymenia, 83, 84.
Rhodymeniaceæ, 83.
Rhodymeniales, 82, 84.
Rhœadinæ, 393.
Rhopographus, 131.
Rhubarb, 359.
Rhus, 439.
Rhynchosia, 471.
Rhynchospora, 285, 286.
Rhytisma, 132.
Ribbon-grass, 296.
Ribes, 121, 152, 153, 241, 454, 455.
Ribesiaceæ, 454.
A Handbook of Systematic Botany · The Wunder Library — complete classics, free to read, with narration.