ANALYTICAL KEY 



TO THE PLANTS DESCRIBED IN THIS WORK. 



Series I. PH^ENOGAMIA, Flowering Plants. 



Plants having true flowers, with stamens and pistils, producing genuine seeds, which 

 contain an embryo. 



Class I. EXOGrEX^. The stem composed of bark, wood, and pith ; the bark increas- 

 ing every year by concentric layers from within, the wood in the same manner from 

 without. Leaves generally netted-veined. Eloral envelopes usually in fours and fives. 



Subclass I. ANGIOSPERM.E. DICOLYLEDONS. The pistil consisting of a true ovary 

 containing ovules, the cotyledons two, or in CERATOPHYLLEiE four. 



Division- I. POLTPETAL^. Flowers having both calyx and corolla, the latter of 

 separate petals, 



A. The stamens more than 10, or more than twice as many as petals. 

 1 , The calyx free from the pistil or pistils. 

 Pistils generally numerous, separate or united in flower, separate 



in fruit. Page 



Implanted on inner aspect of calyx-tube ~" . Eosa, 308 



Implanted on the torus (receptacle or thalamus). 



Stamens implanted on calyx, separate Eosace.e, 299 



Stamens adnate to base of petals, ladelphous Malvacejs, 174 



Stamens implanted on torus. Eanunculace^, 34 



Pistils 3-12, united by ovaries, or 1, with 3-6 lobes. 



Placenta in axis. RANUNcuLACE.ffi:, 34 



Placenta parietal Eesedace^, 110 



Pistil 1, but styles or stigmas sometimes multiple. 



Ovary 8-30 celled; ovules on septa; aquatics Nymphjeaceje, 48 



Ovary 5-celled ; stamens 1-adelphous ; anthers reniform Hibiscus, 179 



Ovary of 5 cells united (at maturity) by twisted styles. . . ... Monsonia, 190 



Ovary 2-5-celled. 

 Leaves with pellucid or black dots. 



Stamens 3-o-adelphous HvpERicijfEa;, 169 



Stamens 12-15, separate Peganum, 199 



Leaves without dots. 



Calyx of 2, fugacious sepals ; fruit a silique Glaucium, 52 



Calyx imbricated in bud; sepals 5; fruit a capsule. .... Glinus, 165 



Calyx valvate in bud, 5-fid ; fruit a drupe or capsule. . . , Tiliace^, 180 



Ovary of 1 true or oo false cells ; sepals 2-3, hood-like, caducous. . Papaverace.e, 49 

 Ovary of 1-2 perfect or 3 imperfect cells; placentse 3, parietal. . . Cistine.k, 114 



Ovary 1-celled; placentae 2-8, parietal. 

 Desert shrubs, leaves not dotted ; fruit an ovate, 1-celled pod . . . Cleome, 108 

 Shrubs, leaves not dotted ; stamens separate ; fruit a berry . Crataeva, Capparis, 106 

 Shrubs or herbs ; leaves usually dotted ; stamens 3-5-adelphous ; 

 fruit a capsule. 

 Placentae fixed at base and tip, otherwise free .... Eeaumuria, 168 



Placentae parietal. Hypericine.e, 169 



Ovary 1-celled, placenta 1, parietal. 

 Herbs with palmate, dissected leaves ; fruit a follicle . . Delphinium, 44 



Shrubs or trees, with 2-3-pinnate leaves Acacia, 298 



Shrubs or trees, with undivided leaves Amvgdaleje, 299 



2. Calyx more or less adherent to compound ovary. 



Ovary in two tiers, lower of 3, upper of 5 cells Granate^, 319 



Ovary 2-5-celled. 

 Leaves pellucid-dotted. MrRTACEiE, 318 



