424:(A) (orig. 425 )
previous:232
Ovule 1 per carpel, rarely accompanied by a second one, which is then early abortive.
next:425
424:(B)
Ovules 2-more per carpel.
next:441
425:(A) (orig. 426 )
previous:424
Stamens hypogynous.
next:426
425:(B)
Stamens perigynous.
next:433
426:(A) (orig. 427 )
previous:425
Perianth-segments 2-6, rarely more, then either stamens more than perianth-segments, or flowers bisexual.
next:427
426:(B)
Perianth-segments 6-more, stamens as many or less. Woody plants. Flowers unisexual.
next:432
427:(A) (orig. 428 )
previous:426
Leaves alternate, when opposite plants woody and leaves usually compound, endosperm not mealy, embryo minute, straight (Clematis)
next:428
427:(B)
Leaves opposite, simple. Herbs. Stipules absent. Flowers in glomerules or cymes. Perianth-segments imbricate. Endosperm mealy. Embryo large, curved. (Gisekia)
428:(A) (orig. 429 )
previous:427
Stipules absent. Perianth-segments usually imbricate, if valvate plant annual, or a shrub, or a liana, and filaments free.
next:429
428:(B)
Stipules present. Perianth-segments valvate. Trees. Flowers unisexual, in panicles. Filaments connate. (Heritiera, Octolobus)
429:(A) (orig. 430 )
previous:428
Fruit dry, if a drupe leaves compound and flowers in umbels. Endosperm fleshy, or cartilaginous, or horny. Embryo small to minute, straight.
next:430
429:(B)
Fruit juicy. Leaves simple Endosperm mealy. Embryo large, curved. Flowers in spikes or in racemes.
430:(A) (orig. 431 )
previous:429
Leaves with an open, dichotomous venation. Himalaya to China.
next:431
430:(B)
Leaves not so veined. (Ranunculoideae)
431:(A) (orig. 432 )
previous:430
Tepals 2 (or 3), sepaloid. Stamens 2, rarely 1 or 3, staminodes absent. (Circaesteraceae)
431:(B)
Tepals 4-7, petaloid. Stamens 11-21, the outer staminodial. (Kingdoniaceae)
Kingdoniaceae
432:(A) (orig. 433 )
previous:426
Leaves usually simple, often 3- or 5-plinerved. Style usually gyno-basic, rarely terminal. Fruit composed of drupelets with a distinctly sculptured endocarp. Pantropical.
432:(B)
Leaves 3-foliolate (rarely simple just below the inflorescences) Style terminal. Fruit composed of berries. China.
433:(A) (orig. 434 )
previous:425
Leaves not tubular.
next:434
433:(B)
Leaves tubular. Herbs. Flowers in panicles. Flowers 6-merous. Stamens 12. Fruits follicular. Endosperm copious.
434:(A) (orig. 435 )
previous:433
Stipules absent. Leaves simple.
next:435
434:(B)
Stipules present.
next:439
435:(A) (orig. 436 )
previous:434
Woody plants. Leaves usually opposite. Fruit dry, indehiscent. Endosperm fleshy. Embryo straight.
next:436
435:(B)
Herbs. Leaves alternate. Fruit a berry. Endosperm mealy. Embryo curved.
436:(A) (orig. 437 )
previous:435
Leaves opposite.
next:437
436:(B)
Leaves alternate. Anthers with introrse, longitudinal slits. Receptacle open. Carpels free, stipitate. New Caledonia. (also in Monimiaceae)
437:(A) (orig. 438 )
previous:436
Anthers with valves.
next:438
437:(B)
Anthers with extrorse, longitudinal slits.
438:(A) (orig. 439 )
previous:437
Flowers with an annular or flask-shaped disk (velum) Receptacle enclosing the carpels. Tropical Africa and America. (Siparunaceae)
Siparunaceae
438:(B)
Flowers without a velum. Ovaries free. New Guinea, Australia to Chile. (Atherospermataceae)
Atherospermataceae
439:(A) (orig. 440 )
previous:434
Leaves alternate. Endosperm scanty or absent.
next:440
439:(B)
Leaves opposite or in whorls. Endosperm copious. Woody plants. Flowers in panicles. Stamens 4-10. Carpels 2-5. New Guinea, Polynesia. (Spiraeanthemum)
440:(A) (orig. 441 )
previous:439
Stipules extra-petiolarily connate. Perianth indistinct. Ovules atropous. Trees. Leaves palmately lobed. Flowers unisexual, in capitules. Connective peltate.
440:(B)
Stipules free, or adnate with the petiole. Perianth-segments 4 or 5. Ovules anatropous. Anthers introrse.
441:(A) (orig. 442 )
previous:424
Ovules 3 -more per carpel.
next:442
441:(B)
Ovules 2 per carpel.
next:445
442:(A) (orig. 443 )
previous:441
Stamens perigynous (when flowers unisexual try also other lead)
next:443
442:(B)
Stamens hypogynous.
next:452
443:(A) (orig. 444 )
previous:442
Perianth-segments 4- or 5-partite. Stamens 4 - 10. Carpels 2 - 5.
next:444
443:(B)
Perianth connate into a calyptra. Stamens and carpels many. New Guinea, E. Australia.
444:(A) (orig. 445 )
previous:443
Stem herbaceous, woody at base only.
next:422
444:(B)
Stem woody. Leaves opposite or in whorls. Flowers in panicles. Perianth-segments valvate. Stamens 4-10. Carpels 2-5. Fruit dehiscent. New Guinea, Polynesia. (Spiraeanthemum)
445:(A) (orig. 446 )
previous:441
Stamens hypogynous.
next:446
445:(B)
Stamens perigynous. Filaments free.
next:450
446:(A) (orig. 447 )
previous:445
Terrestrials. Leaves not peltate.
next:447
446:(B)
Aquatics. Floating leaves peltate, submerged ones finely divided. Flowers solitary, bisexual. Perianth-segments 6, imbricate. (Cabombaceae)
Cabombaceae
447:(A) (orig. 448 )
previous:446
Shrubs or trees. Perianth-segments apert or valvate.
next:449
447:(B)
Herbs or shrubs. Perianth-segments imbricate, 3-5. Leaves lobed, or incised, or pinnately compound.
next:448
448:(A) (orig. 449 )
previous:447
Nectaries absent. Fruit a red, fleshy berry. Tepals 3. Japan, E. N. America. (Hydrastidaceae)
Hydrastidaceae
448:(B)
Nectaries present. Fruit a dry capsule. Tepals 3-5. (Helleboraceae: Callianthemum, Xanthorrhiza)
449:(A) (orig. 450 )
previous:447
Trees. Leaves not glandular-punctate. Flowers in panicles. Flowers unisexual or polygamous. Perianth-segments valvate.
next:451
449:(B)
Shrubs. Leaves with translucent glandular dots. Flowers solitary or in capitules (Diplolaena) Leaves simple. Perianth-segments 5, valvate or apert (Diplolaena)
450:(A) (orig. 451 )
previous:445
Leaves alternate. Endosperm scanty or absent. Fruit indehiscent.
450:(B)
Leaves opposite or in whorls. Fruit dehiscent. Endosperm copious. Leaves opposite or in whorls. Filaments free, 4-10. Carpels 2-5. New Guinea, Polynesia. (Spiraeanthemum)
451:(A) (orig. 452 )
previous:449
Leaves opposite or in whorls. Filaments free. S. America, West Indies.
451:(B)
Leaves alternate. Filaments more or less connate. (Sterculieae)
452:(A) (orig. 453 )
previous:442
Stem herbaceous, woody at base only. Filaments free, usually many.
next:453
452:(B)
Woody plants.
next:455
453:(A) (orig. 454 )
previous:452
Terrestrials, rarely aquatics with peltate, floating leaves, then submerged ones', if any, similar, flowers 2-6 together, tepals 5 and ovules many per carpel (Caltha) Endosperm fleshy, or cartilaginous, or horny.
next:454
453:(B)
Aquatics with peltate floating leaves and finely divided submerged ones. Endosperm mealy. Flowers solitary. Tepals 6. Ovules 3 or 4 per carpet. (Cabombaceae)
Cabombaceae
454:(A) (orig. 455 )
previous:453
Leaves 2, cauline. Carpels dehiscent along the ventral and dorsal sutures. Rhizomatous herb. Flowers solitary. Nectaries absent. Tepals 4. Japan. (Glaucidiaceae)
Glaucidiaceae
454:(B)
Leaves several, usually at least a few basal. Carpels dehiscent along the ventral , suture. Flowers usually in inflorescences. Nectaries present. (Helleboraceae)
455:(A) (orig. 456 )
previous:452
Leaves alternate.
next:456
455:(B)
Leaves opposite. Leaves undivided. Stipules absent. Flowers solitary, unisexual. Tepals (or bracteoles) 2-8, apert or imbricate. Filaments numerous, connate at base.
456:(A) (orig. 457 )
previous:455
Flowers unisexual or polygamous.
next:457
456:(B)
Flowers bisexual. Leaves undivided. Stipules absent. Flowers in catkin-like spikes. Tepals and stamens 4. (also in Magnoliaceae)
457:(A) (orig. 458 )
previous:456
Stipules present 1.
next:458
457:(B)
Stipules absent. Leaves compound. Flowers solitary or in racemes. Tepals 3 or 6. Stamens 6. Fruit juicy.
458:(A) (orig. 459 )
previous:457
Flowers solitary, or 2 or 3 together, Tepals 3, imbricate. Filaments free. Leaves undivided. Stamens 6. Carpels 3. Fruit dry. Juan Fernandez.
458:(B)
Flowers in panicles. Perianth-segments 3-5. connate at base, valvate. Filaments more or less connate 1.