22 ANALYTICAL KEY. 



Pistils more than one, or several-lobed, the ovaries united below 



the middle Besedace.e, 76 



Pistils several, their ovaries cohering in a ring around an axis, 



but separating in fruit MiLVACEiE, 98 



Pistils strictly one as to the ovary : the styles or stigmas may be several. 



Leaves punctate under a lens with transparent dots. HvPEKiCACEiE, 83 



Leaves not punctate )vith tra,uspareut dots., j , . . 



Ovaty simple, i-celled, with one parietal placenta. 



Leaves 2 - 3-ternately compound or dissected. RANUNCTlLACEiE, 34 



Leaves peltate, simply lobed. Podophyllum, in Bekberidace/e, 52 



Ovary compound, 1-ceUed, with a central placenta. Poktdlacace.e, 97 

 Ovary compound, 1-celled, with 2 or more parietal placentae. 



Calyx caducous. Juice milky or colored. . . PapaveeacezE, 58 



Calyx deciduous, of 4 sepals Cappakidace/e, 75 



Calyx persistent, of 3 or 5 sepals CiSTACEiE, 80 



Ovary compound, several-celled. 

 Calyx valvate in the bud, and 

 Persistent : stamens mouadelphous : anthers 1-celled. Malvaceae, 98 



Deciduous : anthers 2-celled Tiliace^, 103 



Calyx imbricated in the bud, persistent 



Shrubs : stamens borne on the base of the petals. Camelliace^, 103 

 Aquatic or marsh herbs : ovules many, 

 On 5 placenta; in the axis. . . . SAERACENiACEiE, 57 

 On the 8 - 24 partitions. . . . NYMPH^A0Ea:,^4 



2. Cali/x more or less coherent with the surface of the {compound) ovary. 



Ovary 10-30-celled : ovules many, on the partitions : aquatic. Ntmph^ace^, 54 



Ovary 2 - 5-celled. ' 



Leaves alternate, with stipules Pomese, in Rosaoe.e, 146 



Leaves opposite, without stipules. Philadelphus, in Saxifragace.e, 163 



Leaves alternate, without stipules. . . . Sttbacace.e, 309 



Ovary one-celled, with the ovules parietal. 

 Fleshy plants with no true foliage : petals many. . . Cactace.^, 184 

 Rongh-leaved plants : petals 5 or 10 Loasace2e, 184 



Ovary one-celled, with the ovules rising from the base. PoKTULAOAOEiE, 97 



IS* Stamens of the same number as the petals and opposite them. 

 Pistils 3 - 6, separate. Flowers dioecious. Woody vines. MENispERMACEiE, 51 

 Pistil only one. 



Ovary one-celled : anthers opening by uplifted valves. Berberidace^, 52 

 Ovary one-celled : anthers not opening by uplifted valves. 



Style and stigma one : ovules more than one. . PKiMULACEiE, 313 



Style one : stigmas 3 : sepals 2 : ovules several. Portulacacb^, 97 



Styles 5 : ovule and seed only one. . . . Plumbaginaceje, 312 

 Ovary 2 - 4-celled. 



Calyx-lobes minute or obsolete : petals valvate. . . Vitaces, 112 

 Calyx 4-5-cleft, valvate in the bud : petals involute. EnAMNACEiE, 113 



