282:(A) (orig. 283 )
previous:234
Ovules 2.
next:283

282:(B)
Ovules 3 - more.
next:300

283:(A) (orig. 284 )
previous:282
Flowers unisexual.
next:284

283:(B)
Flowers bisexual or polygamous.
next:287

284:(A) (orig. 285 )
previous:283
Flowers not in catkins. Perianth present. Fruits not capsular. Endosperm usually present.
next:285

284:(B)
Flowers in catkins. Perianth absent, replaced by a disk, either consisting of scales, or cupuliform. Fruit a capsule. Endosperm absent. Stigmas 2-4. Placentas 2. Ovules ascending.

285:(A) (orig. 286 )
previous:284
Perianth imbricate. Ovules anatropous.
next:286

285:(B)
Perianth valvate. Ovules atropous. Stamens 3-5.Stigma 1, sessile. Ovules collateral, pendulous. Fruit a drupe.

286:(A) (orig. 287 )
previous:285
Fruit dry, indehiscent, or a drupe. Ovules pendulous, collateral. (Drypetes; Stilaginaceae: Antidesma)
Stilaginaceae
286:(B)
Fruit a berry. Flowers solitary or fascicled. Stamens 10-more. Styles 2. Placentas 2. (Doryalis)

287:(A) (orig. 288 )
previous:283
Leaves opposite or in whorls.
next:288

287:(B)
Leaves alternate.
next:290

288:(A) (orig. 289 )
previous:287
Herbs or undershrubs. Tepals 5. Stamens 5, then alternitepalous, or epitepalous, or numerous.
next:289

288:(B)
Shrubs or trees. Tepals 4. Stamens 4, epitepalous.

289:(A) (orig. 290 )
previous:288
Stigma 1. Stipules absent. (Acrosanthes, Trianthema)

289:(B)
Stigmas 2. (incl. Illecebraceae)

290:(A) (orig. 291 )
previous:287
Stipules present, sometimes reduced, or early fugacious, or adnate with the petiole. Embryo straight.
next:291

290:(B)
Stipules absent.
next:295

291:(A) (orig. 292 )
previous:290
Ovules basal. Endosperm scanty or absent.
next:292

291:(B)
Ovules parietal.
next:294

292:(A) (orig. 293 )
previous:291
Tepals imbricate. Style gynobasic.
next:293

292:(B)
Tepals valvate. Style terminal. Stamens perigynous, outside the disk. (Condalia)

293:(A) (orig. 294 )
previous:292
Flowers slightly zygomorphic. Stamens perigynous. Anthers introrse, usually partly sterile. Disk present. Not in Australia. (Licania)

293:(B)
Flowers actinomorphic. Stamens hypogynous. Anthers 10, all fertile. Disk absent. S.W. Australia. (also in Chrysobalanaceae or Rosaceae)

294:(A) (orig. 295 )
previous:291
Disk extra-staminal. Placentas 2. Fruit a berry or a fleshy capsule. Endosperm present. Aril present. Stamens 6-12. (Euceraea, Casearia)

294:(B)
Disk absent, Placenta 1. Fruit a drupe. Endosperm scanty or absent. Aril absent. Perianth apert or imbricate. Stigma 1.

295:(A) (orig. 296 )
previous:290
Tepals 5. Stamens 5 or 10.
next:296

295:(B)
Tepals 4 or 6. Stamens 1 or 4. Fruit not dehiscing transversally. Embryo straight.
next:297

296:(A) (orig. 297 )
previous:295
Herbs or undershrubs. Stigmas 2-4, sessile, apical. Fruit with a transverse suture. Endosperm copious. Embryo curved. (Celosia)

296:(B)
Shrubs. Style gynobasic; stigma 1, peltate. Fruit a nut or a drupe. Endosperm scanty. Embryo straight. S.W. Australia. (also in Chrysobalanaceae or Rosaceae)

297:(A) (orig. 298 )
previous:295
Tepals 4. Disk absent. Stamens 4. Placenta 1.
next:298

297:(B)
Tepals 6. Extra-staminal disk present. Stamen 1. Placentas 2 (or 3) (Lacistemataceae)
Lacistemataceae
298:(A) (orig. 299 )
previous:297
Stamens epitepalous. Endosperm absent.
next:299

298:(B)
Stamens alternitepalous. Endosperm present. Stamens 4. Fruit a drupe. (Pyrenacantha)

299:(A) (orig. 300 )
previous:298
Leaves not translucent-glandular punctate. Stamens usually adnate to the tepals, epigynous, rarely free and hypogynous (Bellendena, Tasmania) Style and stigma 1.

299:(B)
Leaves translucent-glandular punctate. Stamens free from the tepals, hypogynous. Stigmas sessile, 2. S. Africa. (Empleurum)

300:(A) (orig. 301 )
previous:282
Ovules basal or central, or laterally attached to the ovary-wall and subbasal in 2 rows.
next:301

300:(B)
Ovules parietal, or laterally attached to the ovary-wall and then sometimes subapical and in 1 or 2 rows.
next:315

301:(A) (orig. 302 )
previous:300
Stigma 1. Fruit a capsule or a follicle.
next:302

301:(B)
Stigmas 2 - 5.
next:308

302:(A) (orig. 303 )
previous:301
Terrestrial plants.
next:303

302:(B)
Aquatic, torrential herbs. Leaves alternate. Perianth of 2 or 3 scales, apert. Stamens hypogynous. Endosperm absent. Embryo straight.

303:(A) (orig. 304 )
previous:302
Leaves alternate.
next:304

303:(B)
Leaves opposite. Perianth 5 - more-merous, valvate or imbricate.
next:306

304:(A) (orig. 305 )
previous:303
Flowers bisexual. Bracts, if any, not tubular.
next:305

304:(B)
Flowers unisexual, dioecious. Bracts tubular. N.W. Borneo.

305:(A) (orig. 306 )
previous:304
Perianth 4-merous, valvate.

305:(B)
Perianth 4- or 5-merous, imbricate, usually dry and chaffy. Flowers in spikes, or in racemes, or in panicles. Stamens usually connate at base. (Celosieae)

306:(A) (orig. 307 )
previous:303
Perianth imbricate. Endosperm copious. Perianth 5-partite.
next:307

306:(B)
Perianth valvate. Endosperm absent. Stamens perigynous. Embryo straight.

307:(A) (orig. 308 )
previous:306
Stamens perigynous. Capsules dehiscing with a lid. Placentas axillary. Embryo curved. (Trianthema)

307:(B)
Stamens hypogynous. Capsule dehiscing with valves. Placenta central. Embryo straight. (Glaux)

308:(A) (orig. 309 )
previous:301
Stem woody. Embryo straight.
next:309

308:(B)
Stem herbaceous, sometimes woody at base, rarely entirely woody, but then embryo curved (Amaranthaceae: Deeringia)
next:311

309:(A) (orig. 310 )
previous:308
Leaves opposite. Perianth 5-partite, imbricate. Stamens 5, hypogynous, epitepalous.

309:(B)
Leaves alternate.
next:310

310:(A) (orig. 311 )
previous:309
Perianth 4-7 lobed, valvate. Stamens 4-7, perigynous, alternitepalous.

310:(B)
Tepals 5, imbricate. Stamens about 12, hypogynous. Ovules 6 on 3 placentas. Fruit 3-winged. Mexico, Guatemala. (Neopringlea, of uncertain position, probably not belonging to:)

311:(A) (orig. 312 )
previous:308
Terrestrials. Perianth 4-6-partite, imbricate. Endosperm present. Embryo curved.
next:312

311:(B)
Aquatic, torrential herbs. Perianth of 2 or 3 scales, apert. Endosperm absent. Embryo straight. Leaves alternate. Stamens hypogynous, 1 - 3.

312:(A) (orig. 313 )
previous:311
Leaves alternate. Stipules absent. Stamens epitepalous.
next:313

312:(B)
Leaves opposite.
next:314

313:(A) (orig. 314 )
previous:312
Lax herbs or undershrubs. Leaves well-developed, distant. Flowers in spikes, or in racemes, or in panicles. Filaments usually connate at base, 5 or more (Celosieae)

313:(B)
Densely cushion-forming perennials. Leaves small, densely imbricate. Flowers solitary. Filaments free at base, usually 3. Kerguelen Isl. (Lyallia)

314:(A) (orig. 315 )
previous:312
Stamens hypogynous, rarely perigynous, then 4-more. Placenta central. Perianth 4-6-partite.

314:(B)
Stamens perigynous, 1-3. Placenta basal. Perianth 5-partite. Styles 2. (Cypselea)

315:(A) (orig. 316 )
previous:300
Placenta 1, or ovules laterally attached to the ovary-wall in 1 row.
next:316

315:(B)
Placentas 2-more, or ovules laterally attached to the ovary-wall in 2 rows.
next:321

316:(A) (orig. 317 )
previous:315
Leaves undivided, dentate or crenate. Trees or shrubs.
next:317

316:(B)
Leaves usually compound, rarely unifoliolate, or reduced to a leaflike petiole, or digitately lobed or -sect, exceptionally simple, then plant herbaceous, leaves palmatinerved, stamens many (Beesia) Fruit dry or a berry.
next:319

317:(A) (orig. 318 )
previous:316
Stamens many.
next:318

317:(B)
Stamens 4, 3 staminodial. Ovules laterally attached to the ovary-wall in 1 row. (Placospermum)

318:(A) (orig. 319 )
previous:317
Ovules parietal, exceptionally subbasal.

318:(B)
Ovules apical. S. America. (Peridiscus, Whittonia, also included in Flacourtiaceae)

319:(A) (orig. 320 )
previous:316
Leaves digitately or pedately nerved, usually lobed or -sect. Stipules absent, petioles often sheathing. Stamens many, hypogynous. Nectaries, when present, between the stamens and the tepals. Herbs.
next:320

319:(B)
Leaves pinninerved, usually compound, rarely unifoliolate, or reduced to a leaf-like petiole. Stipules usually present. Stamens usually more or less perigynous. Nectaries, when present, between the stamens and the ovary.

320:(A) (orig. 321 )
previous:319
Leaves 2, cauline. Carpels dehiscent along the ventral and dorsal sutures. Rhizomatous herbs. Flowers solitary. Nectaries absent. Tepals 4. Japan. (Glaucidiaceae)
Glaucidiaceae
320:(B)
Leaves several, usually at least some basal. Carpels dehiscent along the ventral suture or a berry. Flowers usually in inflorescences. Nectaries present. (Helleboraceae)

321:(A) (orig. 322 )
previous:315
Ovary sessile, when stipitate stigmas 2-6.
next:322

321:(B)
Ovary stipitate. Leaves alternate. Tepals 4. Stigma 1. Ovules campylotropous. Endosperm absent. Embryo strongly curved or involute.

322:(A) (orig. 323 )
previous:321
Ovary initially apically open, closed after pollination. Tepals 5 or 6. Stamens 10-30. Stigmas 3, sessile. (Ochradenus)

322:(B)
Ovary completely closed.
next:323

323:(A) (orig. 324 )
previous:322
Stamens 2 -more.
next:324

323:(B)
Stamen 1. Shrubs or trees. Stipules absent. Flowers bisexual, in spikes. Style 1. Stigmas 2 or 3. Ovules few. C. America, West Indies. (Lacistemataceae: Lacistema)
Lacistemataceae
324:(A) (orig. 325 )
previous:323
Perianth well-developed.
next:325

324:(B)
Perianth actually absent, replaced by either a cupular, lobed disk, or 1 or 2 scales, which resemble a perianth. Woody plants. Flowers dioecious, in spikes, or in racemes, or in catkins. Stigmas 2-4. Endosperm absent.

325:(A) (orig. 326 )
previous:324
Stamens as many as the perianth-segments.
next:326

325:(B)
Stamens more than the perianth-segments, rarely as many, then style and stigma 1. Ovary sessile, rarely shortly stipitate then stamens numerous.
next:327

326:(A) (orig. 327 )
previous:325
Stamens 4. Style 1.

326:(B)
Stamens 5 or 6, rarely 8 or 9. Styles 3. Stem usually climbing. Leaves alternate. Stipules present. Flowers bisexual, solitary or in cymes. Perianth-segments 5 or 6, imbricate. Stamens perigynous. Styles free, or connate at base. Ovaries stipitate, rarely sessile, then stem herbaceous or woody at base only. (Passiflora, Tryphostemma)

327:(A) (orig. 328 )
previous:325
Plants autotrophic. Leaves well developed.
next:328

327:(B)
Herbaceous root-parasites. Leaves scale-like. Perianth undivided or 4-lobed. Stamens numerous, connate. Style 1. Stigma undivided.

328:(A) (orig. 329 )
previous:327
Stem herbaceous.
next:329

328:(B)
Stem woody.
next:332

329:(A) (orig. 330 )
previous:328
Leaves lobed to compound, the upper cauline sometimes simple and dentate, unarmed. Tepals 2 or 4. Stamens either 6 or many. Style 1 or stigma sessile.
next:330

329:(B)
Leaves simple, serrate, underneath thorny on the nerves. Tepals 5 - 7. Stamens 10 - 14. Styles 2. ( Oresitrophe)

330:(A) (orig. 331 )
previous:329
Leaves lobed to dentate. Flowers actinomorphic. Stamens many, free.
next:331

330:(B)
Leaves compound. Flowers zygomorphic. Stamens 6, connate into 2 bundles of 3. Tepals 4, persistent during flowering. (Fumariaceae)
Fumariaceae
331:(A) (orig. 332 )
previous:330
Flowers in panicles. Tepals 2, deciduous before flowering. (Macleaya)

331:(B)
Flowers solitary. Tepals 4, persistent during flowering. (Glaucidiaceae)
Glaucidiaceae
332:(A) (orig. 333 )
previous:328
Perianth-segments 4 or more, rarely 3, imbricate, rarely valvate, but then tepals 3. (incl. Neumanniaceae and Passifloraceae: Physena, Trichostephanus)
Neumanniaceae
332:(B)
Perianth-segments 3 - 8, valvate.
next:333

333:(A) (orig. 334 )
previous:332
Style 1. Stigma 1, or 4-6.
next:334

333:(B)
Styles 3 or 4, subulate with indistinct stigmas. Trees. Leaves 3-plinerved. S. America. (Flacourtiaceae: Peridiscus, Whittonia)

334:(A) (orig. 335 )
previous:333
Stipules absent. Stamens perigynous. Leaves opposite.
next:335

334:(B)
Stipules present, but sometimes minute and early fugaceous. Stamens hypogynous.
next:336

335:(A) (orig. 336 )
previous:334
Ovary incompletely 10-20-locular. Stamens numerous. Fruit a berry. Endosperm absent. S.E. Asia. (Sonneratia)

335:(B)
Ovary apparently 2-locular with the septs touching each other. Stamens 5 (rarely 6) S. America. (Crypteroniaceae: Alzatea)

336:(A) (orig. 337 )
previous:334
Stamens on a cushion-shaped disk. Leaves usually alternate, rarely opposite. Fruit a loculicide capsule, opening from the apex. (Sloanea)

336:(B)
Disk absent. Leaves alternate. Fruit a capsule, opening from the base and from the apex, fruit wall zigzag and intact. (Itoa)