, on the germination of the seeds of Megarrhiza Californica, 82
Relation between circumnutation and heliotropism, 435
Reseda odorata, hypocotyl of seedling slightly heliotropic, 454
Reversion, due to mutilation, 190
Rhipsalis cassytha, rudimentary cotyledons, 97
Ricinus Borboniensis, circumnutation of arched hypocotyl, 53
Robinia, effect of bright sunshine on its leaves, 445
-- pseudo-acacia, leaflets vertical at night, 355
Rodier, M., on the movements of Ceratophyllum demersum, 211
Royer, Ch., on the sleep-movements of plants, 281, n.; on the sleep of
leaves, 318; the leaves of Medicago maculata, 345; on Wistaria Sinensis,
354
Rubus idaeus (hybrid) circumnutation of stem, 205
--, apogeotropic movement of stem, 498
Ruiz and Pavon, on Porlieria hygrometrica, 336
S.
SACHS on "revolving nutation," 1; intimate connection between turgescence
and growth, 2, n.; cotyledon of the onion, 59; adaptation of root-hairs,
69; the movement of the radicle, 70, 72, 73; movement in the hypocotyls of
the bean, etc., 91; sensitiveness of radicles, 131, 145, 198; sensitiveness
of the primary radicle in the bean, 155; in the common pea, 156; effect of
moist air, 180; of killing or injuring the primary radicle, 186, 187;
circumnutation of flower-stems, 225; epinasty, 268; movements of leaflets
of Trifolium incarnatum, 350; action of light in modifying the periodic
movements of leaves, 418; on geotropism and heliotropism, 436, n.
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