The Manual of the Botany of the Northern United States - novelonlinefull.com
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Ovary 2--several-celled.
Anthers opening by pores at the apex; style 1.
MELASTOMACEae, 183
Anthers not opening by pores.
Stamens on a flat disk which covers the ovary.
CELASTRACEae, 109
Stamens inserted on the calyx.
Eight or four (rarely five); style 1. ONAGRACEae, 186
Five or ten; styles 2--3, distinct. SAXIFRAGACEae, 168
Ovules and seeds only one in each cell.
Stamens 10 or 5 (instead of many),-- rarely in Crataegus, in ROSACEae, 165
Stamens 2 or 8; style 1; stigma 2--4-lobed; herbs.
ONAGRACEae, 186
Stamens 4 or 8; aquatics; styles or sessile stigmas 4.
HALORAGEae, 180
Perfect stamens 4; styles 2; shrub. HAMAMELIDEae, 179
Stamens 4; style and stigma 1; chiefly shrubs. CORNACEae, 213
Stamens 5; flowers in umbels, or rarely in heads.
Fruit dry, splitting in two at maturity; styles 2.
UMBELLIFERae, 193
Fruit berry-like; styles 2--5, separate or united.
ARALIACEae, 212
Division II. GAMOPETALOUS calyx and corolla both present; the latter with its petals united more or less into one piece.
[A.] _Stamens more numerous than the lobes of the corolla._
Ovary 1-celled with one parietal placenta. LEGUMINOSae, 122
Ovary 1-celled with two parietal placentae.
Adlumia, &c., in Fumariaceae, 60
Ovary 1-celled with the ovules at the centre or base. STYRACACEae, 333
Ovary 2-celled with a single ovule in each cell. POLYGALACEae, 120
Ovary 3--many-celled.
Stamens free or nearly free from the corolla; style single.
ERICACEae, 309
Stamens free from the corolla; styles 5. Oxalis, in GERANIACEae, 105
Stamens inserted on the base or tube of the corolla.
Filaments monadelphous; anthers 1-celled, kidney-shaped.
MALVACEae, 96
Filaments 1--5-adelphous at base; anthers 2-celled.
Calyx free from the ovary. TERNSTRMIACEae, 96
Calyx coherent with the ovary or with its base. STYRACACEae, 333
Filaments wholly distinct; calyx free, persistent. EBENACEae, 333
Filaments in pairs at each sinus; anthers 1-celled.
CAPRIFOLIACEae, 216
[B.] _Stamens (fertile ones) as many as the lobes of the corolla and opposite them._
Ovary 5-celled; corolla appendaged with scales inside. SAPOTACEae, 332
Ovary 1-celled; pod several--many-seeded; style 1. PRIMULACEae, 328
Ovary 1-celled; utricle 1-seeded; styles 5. PLUMBAGINACEae, 327
[C.] _Stamens as many as the lobes of the corolla and alternate with them, or fewer._
[1.] _Ovary adherent to the calyx-tube (inferior)._
Tendril-bearing herbs; anthers often united. CUCURBITACEae, 194
Tendrils none.
Stamens united by their anthers into a ring or tube.
Flowers in an involucrate head. COMPOSITae, 230
Flowers separate, not involucrate; corolla irregular.
LOBELIACEae, 305
Stamens separate, free from the corolla or nearly so, as many as its lobes; stipules none; juice milky. CAMPANULACEae, 307
Stamens separate, inserted on the corolla,
