O.
- Orchids, andrœcium of, [380]
- prolification in, [153]
- Organs, rudimentary, see Atrophy
- Ovary, inferior, nature of, [394], [482]
- Ovules, abortion of, [466]
P.
- Parasitical plants, [55]
- Peduncles, elongation of, [435]
- Peloria, [207], [228]
- Perianth, abortion of, [460]
- Persistence, [xxxvi] adnot., [217]
- Petalody, [283]
- Petals, cohesion of, [28]
- Phyllode, [328]
- Phyllody, [240] (see Virescence, Chloranthy)
- Phyllomania, [352]
- Phyllomorphy, see Phyllody
- Phyllotaxy, [1], [320]
- Pistil, abortion of, [464]
- Pistillody, [302]
- Pitchers, [30], [313], [509], see Ascidia
- Placentation, changes in, [96], [508]
- Placenta, elongation of, [439]
- enlargement of, [421]
- Pleiomorphy, [228]
- Pleiophylly, [353]
- Pleiotaxy, [371]
- Plien, [346]
- Plymouth Strawberry, [275]
- Polyadelphia, [29]
- Pollen in ovules, [183]
- Polyclady, [346]
- Polycotyledony, [370]
- Polyembryony, [369]
- Polymorphy, [328]
- Polyphylly of andrœcium, [361]
- Polyphylly, bibliography, [364]
- plants subject to, [364]
- Position, changes of, [83]
- relative, [485]
- Prolification, [100]
R.
- Receptacle, abortion of, [457]
- Reflexion, [209]
- Regularity, [213]
- Rhizotaxy, [1]
- Rose Willow, [166], [168]
- Roots, adventitious, [156]
- elongation of, [434]
- Rudimentary organs, [469]
S.
- Saint Valery Apple, [135], [282], [304], [375], [388]
- Savoys, [426]
- Scales, formation of, [164], [448], [470]
- Scape, leaves on, [163]
- Seeds, abortion of, [407]
- union of, [50]
- Sepals, adhesion of, to petals, [34]
- Sepalody, [282]
- Separation, [58]
- Sex, changes of, [190], [509]
- Shamrock, four-leaved, [356]
- Shoots below cotyledons, [167]; see Leaders
- Size, alterations in, [411]
- Solenaidie, [21], [316]
- Solution, [59], [76]
- Spathes, increased number of, [357]
- Speiranthy, [91], [325]
- Spiral torsion, [319]
- Spines, [456]
- Sports, [336]
- Spurs, formation of, [228], [315]
- Stamens, see Andrœcium
- Staminody, of accessory organs, [301]
- Stasimorphy, [216]
- Stem, see axes
- Stipules, increased number of, [357]
- Strawberry, Plymouth, [275]
- blind, [195]
- Suppression, [393]
- Suppression of ovules, [407]
- Symmetry, [213]
- Synanthy, [37]
- Syncarpy, [45]
- Syngenesia, [29]
- Synophty, [57]
- Synspermy, [50]
T.