459:(A) (orig. 460 )
previous:E
previous:231
Ovary one, 1-locular, sometimes incompletely more-locular.
next:460
459:(B)
Ovary completely 2-more-locular or nearly so,, or ovaries several per flower.
next:508
460:(A) (orig. 461 )
previous:459
Ovules quite distinct, at least in the older flowers.
next:466
460:(B)
Ovules not clearly distinct from the ovary-tissue. Parasites.
next:461
461:(A) (orig. 462 )
previous:460
Fleshy, yellowish to brownish or red herbs without chlorophyll.
461:(B)
Parasitic shrubs with green leaves. Male flowers without perianth, or perianth segments valvate; when stamens epipetalous, then as many as the segments. Stigma 1.
next:462
462:(A) (orig. 463 )
previous:461
Flowers unisexual, the male flowers consisting of a group of up to 3 stamens. Fruit dry, with 3 feather-like bristles. Epiphytic, shrubby, green parasites on Nothofagus. Temperate S. America.
462:(B)
Flowers bisexual or unisexual, in the latter case the male flowers either with a perianth, or (Antidaphne) consisting of a group of 4 stamens. Fruit usually fleshy, without feather-like bristles.
next:463
463:(A) (orig. 464 )
previous:462
At least the bisexual or female flowers with a rim-like calyx (calyculus) below the corolla. Flowers usually brightly coloured and usually bisexual, if flowers unisexual then plants dioecious.
463:(B)
Calyx or calyculus absent. Plants monoecious or dioecious. Flowers usually inconspicuous, greenish; unisexual.
next:464
464:(A) (orig. 465 )
previous:463
Leaves usually decussate. Flowers in cymes or produced from the stem, not the leaf-axils (Tropical America, West Indies: Dendrophtora, Phoradendron) Anthers usually sessile or cohering.
464:(B)
Leaves usually alternate. Flowers in axillary or terminal racemose inflorescences. Anthers neither sessile, nor cohering.
next:465
465:(A) (orig. 466 )
previous:464
Plants attached by means of large, distinct primary haustoria, sometimes also with secondary haustoria on creeping roots. Fruitwall without conspicuous longitudinal fibres. S. America, Mexico, Caribbean.
465:(B)
Plants without a distinct primary haustorium. Branches either leafy or with scales and then originating from endophytic parts. Fruitwall with conspicuous longitudinal fibres. S. E. Asia, New Guinea.
466:(A) (orig. 467 )
previous:460
Ovule 1.
next:467
466:(B)
Ovules 2 -more.
next:486
467:(A) (orig. 468 )
previous:466
Ovule more or less basal.
next:468
467:(B)
Ovule more or less apical.
next:474
468:(A) (orig. 469 )
previous:467
Ovule atropous. Shrubs or trees. Flowers unisexual. Perianth calycoid.
next:469
468:(B)
Ovule hemitropous or anatropous.
next:470
469:(A) (orig. 470 )
previous:468
Leaves undivided. Stipules present. Flowers in glomerules. Stigma 1. Endosperm present.
469:(B)
Leaves usually pinnately compound. Stipules absent. Flowers in spikes or in catkins. Stigmas 2. Endosperm absent.
470:(A) (orig. 471 )
previous:468
Perianth calycoid. Stamens as many as the perianth-segments, epitepalous, or more, or less. Ovule hemitropous. Embryo curved.
next:471
470:(B)
Perianth corolloid. Stamens as many as the perianth-segments, alternitepalous. Ovule usually anatropous. Embryo straight.
next:473
471:(A) (orig. 472 )
previous:470
Perianth-segments imbricate. Stamens 1-5. Stigmas 2-5. Fruit a capsule or a nut.
next:472
471:(B)
Perianth-segments valvate. Stamens 10-30. Stigma 1. Fruit a drupe. Herbs. Leaves alternate. Stipules present.
472:(A) (orig. 473 )
previous:471
Stipules absent. Stamens 1-5. Stigmas 2-5.
472:(B)
Stipules present. Herbs. Leaves opposite. Flowers in capitules, bisexual. Stamens 5. Stigmas 2. (Paronychioideae)
473:(A) (orig. 474 )
previous:470
Flowers solitary or in cymes, rarely in spikes or in racemes, or in capitules. Stigma 1, surrounded by a cup-shaped involucre. Endosperm present. Flowers bisexual.
473:(B)
Flowers usually in capitules. Stigmas 2, involucre absent. Endosperm absent.
474:(A) (orig. 475 )
previous:467
Fleshy, herbaceous, red-brown root-parasites. Leaves scale-like. Leaves alternate. Stipules absent. Flowers in a terminal, clavate spike. Stamen 1. Fruit a nut.
474:(B)
Autotrophic herbs or woody plants. Leaves well-developed.
next:475
475:(A) (orig. 476 )
previous:474
Ovule anatropous or hemitropous.
next:476
475:(B)
Ovule atropous. Leaves opposite. Stipules present. Stamens 1-3, connate and adnate to the ovary. Stigma 1. Fruit a drupe. Endosperm present.
476:(A) (orig. 477 )
previous:475
Stipules absent 1.
next:477
476:(B)
Stipules present. Flowers unisexual. Stamens 1-6. Ovule hemitropous.
477:(A) (orig. 478 )
previous:476
Leaves opposite, or in whorls, or radical, then sometimes spirally so. Anthers with longitudinal slits. Ovule anatropous. Embryo straight.
next:478
477:(B)
Leaves alternate, cauline.
next:480
478:(A) (orig. 479 )
previous:477
Usually herbaceous terrestrials. Leaves opposite or radical. Perianth distinct.
next:479
478:(B)
Aquatics. Leaves in whorls. Perianth an indistinct ridge. Flowers solitary, bisexual. Stamen 1. Endosperm present.
479:(A) (orig. 480 )
previous:478
Leaves radical, spirally arranged. Tepals 2 or 3, calycoid, apert. Styles or stigmas 2. Endosperm fleshy. Stamens 1 or 2. (Gunneraceae)
Gunneraceae
479:(B)
Leaves opposite, also when radical. Perianth-segments (3-)5, corolloid, imbricate. Style 1. Stigma 1, or 2- or 3-partite. Endosperm absent. Stamens 1 - 4.
480:(A) (orig. 481 )
previous:477
Anthers with valves. Endosperm absent. Woody plants. Perianth calycoid. Stigma 1. Embryo straight.
next:481
480:(B)
Anthers not with valves. Endosperm present. Leaves pinninerved.
next:483
481:(A) (orig. 482 )
previous:480
Leaves tripli- or palmatinerved. Stamens in 1 whorl. Anthers 2-locular.
next:482
481:(B)
Leaves pinninerved. Stamens in 3 whorls. Anthers 4-locular. Flowers unisexual. Tepals and stamens 6. W. Africa. (Hypodaphnis)
482:(A) (orig. 483 )
previous:481
Leaves without cystoliths. Tepals in 2 whorls, valvate. Stamens as many as the outer tepals. Cotyledons wrinkled.
482:(B)
Leaves with cystoliths. Tepals in 1 whorl, imbricate. Stamens less than the tepals. Cotyledons plicate or convolute. (Gyrocarpaceae)
Gyrocarpaceae
483:(A) (orig. 484 )
previous:480
Flowers bisexual, solitary or in fascicles, or in spikes. Ovule hemi-tropous. Embryo curved. Herbs or undershrubs. Tepals 3-5. Endosperm mealy. (Tetragoniaceae)
Tetragoniaceae
483:(B)
Flowers arranged differently, if solitary flowers female and plants woody, dioecious. Ovule anatropous. Embryo straight.
next:484
484:(A) (orig. 485 )
previous:483
Woody plants. Flowers unisexual, in racemes, or in panicles, or in capitules, rarely the male in umbels. Style 1, or 3, rarely 2. Fruit a drupe, or a berry, or samara-like.
next:485
484:(B)
Woolly herbs. Flowers polygamous, in involucrate capituliform umbels, the outer flowers often male. Styles 2. Fruit woody, indehiscent. Tepals 5, sepaloid, stamens 5, epitepalous. Endosperm cartilaginous. Australia, New Zealand. (Hydrocotylaceae: Actinotus)
485:(A) (orig. 486 )
previous:484
Plants usually epiphytic or climbing, branches glabrous. Male flowers with calyx and corolla; stamens 5, alternitepalous. Female flowers in racemes or panicles; tepals sepaloid; style 1 with 3 stigmas, or style 3. Fruit a berry. ( Griseliniaceae)
Griseliniaceae
485:(B)
Plants terrestrial, branches silky-pubescent. Male flowers with corolloid tepals; stamens usually 10, diplostemonous. Female flowers solitary or in capitules, with calyx and corolla; style 1, rarely 2, each with 1 stigma. Fruit a drupe or samara-like.
486:(A) (orig. 487 )
previous:466
Ovules 2.
next:487
486:(B)
Ovules 3 -more.
next:494
487:(A) (orig. 488 )
previous:486
Stamens as many as the tepals, alternitepalous. Ovules ascending.
next:488
487:(B)
Stamens as many as the perianth-segments, epitepalous, or more. Ovules pendulous.
next:489
488:(A) (orig. 489 )
previous:487
Stipules present. Perianth calycoid. Stigma without an involucre. (Condalia)
488:(B)
Stipules absent. Perianth corolloid. Stigma with a cup-shaped involucre. (Scaevola)
489:(A) (orig. 490 )
previous:487
Stipules present, usually very distinct. Flowers in spikes or in catkins. Male flowers without a perianth. Styles 2. Fruit dry. Endosperm absent. (incl. Corylaceae)
Corylaceae
489:(B)
Stipules absent.
next:490
490:(A) (orig. 491 )
previous:489
Styles 2. Leaves opposite. Flowers in spikes or in catkins. Male and female flowers with a perianth. Fruit juicy. Endosperm present. Sub(tropical) America.
490:(B)
Style 1. Flowers usually bisexual.
next:491
491:(A) (orig. 492 )
previous:490
Leaves opposite. Perianth-segments valvate. Endosperm present.
next:492
491:(B)
Leaves alternate.
next:493
492:(A) (orig. 493 )
previous:491
Stamens 3-6, as many as the perianth-segments. S.E. Asia, Australia.
492:(B)
Stamens 8, twice as many as the perianth-segments. S. Africa.
493:(A) (orig. 494 )
previous:491
Perianth-segments (3-)5(-8), valvate or imbricate. Stamens 10. Endosperm absent.
493:(B)
Perianth-segments 3-6, valvate, as many as the stamens. Endosperm present.
494:(A) (orig. 495 )
previous:486
Ovules 3-5.
next:495
494:(B)
Ovules 6 -more.
next:500
495:(A) (orig. 496 )
previous:494
Style 1.
next:496
495:(B)
Styles 2-4, free. Herbs or undershrubs. Tepals 3 or 4, stamens twice as many. Endosperm present. (Haloragis, Laurembergia)
496:(A) (orig. 497 )
previous:495
Ovary incompletely 3-locular. Woody plants. Flowers in spikes or in racemes. Perianth 4-6-lobed, corolloid. Stamens 4-6.
next:497
496:(B)
Ovary locular.
next:498
497:(A) (orig. 498 )
previous:496
Flowers unisexual. Stigma 3-5-lobed, lobes bifid. (Octoknemataceae)
497:(B)
Flowers bisexual. Stigma shortly 3-lobed, lobes entire. (Schoepfia)
498:(A) (orig. 499 )
previous:496
Stamens 1 - 6. Ovules pendulous from a central, sometimes parietal placenta. Integuments and testa absent. Endosperm present.
next:499
498:(B)
Stamens 4-more, usually 8 or 10. Ovules apical, pendulous. Integuments and testa present. Endosperm absent. Stigma 1.
499:(A) (orig. 500 )
previous:498
Male flowers without a perianth. Female flowers with 3 feathery appendages. Epiphytic, shrubby, green parasites on Nothofagus. Flowers in spikes or in capitules. Temperate S. America.
499:(B)
Perianth present in all flowers, segments 3-6. Stigma 1, undivided or lobed.
500:(A) (orig. 501 )
previous:494
Ovary 1-locular, or incompletely more-locular with more than 2 ovules per locule.
next:501
500:(B)
Ovary, at least in the older flowers, incompletely 3-6-locular, ovules 2 per 'locule'. Stem woody. Stipules present. Flowers unisexual or polygamous. Styles 3. Endosperm absent.
501:(A) (orig. 502 )
previous:500
Flowers unisexual or polygamous.
next:502
501:(B)
Flowers bisexual.
next:504
502:(A) (orig. 503 )
previous:501
Autotrophic, green plants. Leaves well developed. Styles 2-more, free. Endosperm absent.
next:503
502:(B)
Coloured, non-green parasites. Leaves scale-like. Style 1. Endosperm present. Stamens numerous.
503:(A) (orig. 504 )
previous:502
Stipules absent. Placentas parietal. (incl. Tetramelaceae)
Tetramelaceae
503:(B)
Stipules present. Placentas axillary.
504:(A) (orig. 505 )
previous:501
Autotrophic, green plants. Leaves well developed. Stamens epitepalous, as many as the perianth-segments or more.
next:505
504:(B)
Parasites, non-green, leafless. Stamens 3 or 4, as many as the tepals, alternitepalous. Flowers solitary. Tepals valvate. Style 1. Placentas numerous.
505:(A) (orig. 506 )
previous:504
Perianth 2-5-lobed, or undivided, nearly entire.
next:506
505:(B)
Tepals 7 or 8. Woody plants. Stamens numerous. Placentas 2 or 3. (Bembicia)
506:(A) (orig. 507 )
previous:505
Perianth-segments 2 or 3 , rarely 6, valvate, or perianth undivided, nearly entire. Placentas 4-6. Styles connate into a column with radiating stigmas. (Aristolochia)
506:(B)
Perianth-segments 4 or 5, imbricate. Placentas 2 or 3. Styles 2-4. Herbs.
next:507
507:(A) (orig. 508 )
previous:506
Staminodes absent. Stamens 4 - 10.Styles 2 or 3. (Saxifragoideae)
507:(B)
Staminodes 5. Stamens 5. Styles 3 or 4, short. S. N. America, Chile. (Lepuropetalaceae)
Lepuropetalaceae