Surirayeæ, 21.
Suspensor, 233, 246, 247.
Swamp cypress, 267.
Swarmspores, 10, 87.
Swede, 405.
Sweet Cicely, 498.
Sweet-flag, 303.
Sweet-gale, 351.
Sweet oil, 547.
Sweet-pea, 470.
Sweet-potato, 517.
Sweet-vernal, 295, 296.
Swertia, 542.
Swietenia, 436.
Swine’s-succory, 571.
Sycamore, 133, 442.
Symbiosis, 85.
Sympetalæ, 336, 504.
Symphoricarpus, 554, 556.
Symphyandra, 562.
Symphyllodium, 257.
Symphytopleura, 387.
Symphytum, 533, 535.
Symploca, 24.
Synalissa, 139.
Synandrium, 306.
Synangium, 212.
Syncarp, 278.
A Handbook of Systematic Botany · The Wunder Library — complete classics, free to read, with narration.