2 GENERAL KEY 
PAGE 
Flowers regular; stamens three to six, free from style and 
stigma. IRIDALES, --58 
Flowers irregular; stamens one or two, united to the style. 
ORCHIDALES. --59 
Class DICOTYLEDONEZ. 
Ovary superior, perianth when present attached at its base, calyx 
often persisting at base of fruit. 
A. Corolla present. 
Petals distinct, or if slightly united, separate at the base. 
Carpels solitary or several and distinct, or but slightly united 
at the base, not forming a compound ovary. 
Stamens attached at the base of the ovary; leaves without 
stipules. RANALES. __61 
Stamens attached to the margin of a disk or cup-shaped 
hypanthium; leaves usually with stipules, but these 
may soon fall off. ROSALES. .131 
Carpels several and united into a compound ovary. 
Petals more numerous than the sepals. 
Aquatics, petals numerous, leaves peltate or with a deep 
sinus. (See also Elatine, a minute aquatic.) 
Nympheacez. --66 
Terrestrial plants, sepals two (or three). 
Flowers regular, plants succulent, without latex. 
Portulacacez. --79 
Flowers irregular or latex present. RHCEODALES. -_67 
Petals usually not more numerous than the sepals, sepals 
usually four or five. 
Ovary one-celled, styles and stigmas often several. 
Ovary with one basal ovule; shrubs with compound 
leaves; fruit a drupe. Anacardiacee. -161 
Ovary with several to many ovules, placentas central or 
parietal. 
Placentas central; leaves opposite; stem with swollen 
nodes. Caryophyllacee --75 
Placentas parietal, 2-5; sometimes intruded so as to 
make the ovary appear several celled. 
Sepals and petals four each, stamens six or more. 
Capparidacez. -_68 
Sepals five, petals five (or three). GUTTIFERALES. --96 
Ovary two to several-celled. (Carpel separate above in 
some Saxifragacez.) 
Flowers irregular. 
Herbs with simple leaves. GERANIALES. - -90 
Trees with palmately compound leaves. 
Hippocastanacee. -160 
Flowers regular. ; 
Stamens united into several clusters or into a tube 
surrounding the style. MALVALES. --98 
Stamens separate. (Slightly united in Oxalis.) 
Leaves evergreen or without green color. 
ERICALES. .104 
