22 ANALYTICAL KEY. 



Pistils more tftafl Oine, or several-lobed, the ovaries united below 



the middle. RESEDACEJE, 76 



PLst'is several, their ovaries cohering in a ring around an axis, 



. but separating iii fruit. MALVACEAE, 98 



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

 Leaves punctate under a lens with transparent dots. HYPERICACE.E, 83 



Leaves not punctate with transparent dots. 



Ovary simple, 1 -celled, with one parietal placenta. 



Leaves 2 - 3-ternately compound or dissected. RANUNCULACE^E, 34 



Leaves peltate, simply lobed. Podophyllum, in BERBERIDACE^E, 52 

 Ovary compound, 1-celled, with a central placenta. PORTULACACE.E, 97 

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



Calyx caducous. Juice milky or colored. . . PAPAVERACE.E, 58 

 Calyx deciduous, of 4 sepals. . . . . , CAPPARIDACE^E, 75 



Calyx persistent, of 3 or 5 sepals CISTACE^E, 80 



Ovary compound, several-celled. 

 Calyx valvate in the bud, and 



Persistent : stamens monadelphous : anthers 1-celled. MALVACEAE, 98 

 Deciduous : anthers 2-celled. ' . . . TILIACE^E, 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 placentas in the axis. . . .' SARRACENIACE^J, 57 

 On the 8-24 partitions NTMPH^ACE^, 54 



2. Calyx more or less coherent with the surface of the (compound) ovary. 



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



Ovary 2 - 5-celled. 



Leaves alternate, with stipules Pomeae, in ROSACES, 146 



Leaves opposite, without stipules. Philadelphus, in SAXIFRAGACE^E, 163 

 Leaves alternate, without stipules. . . . STYRACACE^:, 309 



Ovary one-celled, with the ovules parietal. 



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

 Rough-leaved plants : petals 5 or 10 LOASACE^:, 184 



Ovary one-celled, with the ovules rising from the base. PORTULACACE^E, 97 



B. Stamens of the same number as the petals and opposite them. 



Pistils 3 - 6, separate. Flowers dioecious. Woody vines. MENISPERMACE^E, 51 

 Pistil only one. 



Ovary one-celled : anthers opening by uplifted valves. BERBERIDACE.E, 52 

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



Style and stigma one : ovules more than one. . PRIMTJLACE^), 313 

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



Styles 5 : ovule and seed only one. . . . PLUMBAGINACE^;, 312 

 Ovary 2-4-celled. 



Calyx-lobes minute or obsolete : petals valvate. . . VITACE^;, 112 

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



