xviii KEY TO THE ORDERS 
Calyx deciduous as a lid: stamens numerous. 
Calyptranthes in Order TE 
Calya n valvate or imbricated sepals: sta- 
ns few 
Mens as many as the perianth-members 
and alternate with them, or fewer. 
Herbs, with succulent stems and leaves, 
2 or woody below: boni Dee 
Tetragoniacea 
face CH ORO DIIEES. 
Trees or shrubs: flowers dioecious. 
yssaceae in Order AMMIALES. 
Stamens as many as the perianth-members 
and opposite them, or twice as many. 
Styles present. 
Ovules mostly on basal placentae, 
sometimes pendulous: eotyledons 
not convolute : ree- 
S Ae 
on bas 
eptyledons | a CE not para- 
itic 
Fhm ilies in Order MYRTALES. 
Styles wild. stigmas sessile. 
Gunneraceae in Order MYRTALES. 
Fruit a capsule, 
Sepals as many as the ovary-cavities or one 
half as many. 
cd regular and the sepals half as 
as the cavities in the ovary, or 
r rder ARISTOLOCHIALES. 
Calyx regular and the a as many as 
the cavities in the o 
"Order MYRTALES. 
Sepals 4-5) at least twice as many as the 
e cavities ( 
axifragaceae in Order ROSALES. 
Flowers, at least the staminate, in involucrate heads. 
Am brosiaceae in Order CARDUALES. 
Corolla present. 
Petals distinct, at least at the bas 
*Carpels solitary, or several and distinct: or united only at the base. 
at the bas e of the receptacle, i. ae hypogyn ous. 
ers in iBoHoecIOUe Platanaceae in Order ROSALES. 
Flowers not in aY heads 
ants with relatively firm Stems and leaves, not succulent. 
Order RANALES. 
Plants with succulent stems and e 
as in Order ROSALES. 
Stamens on the margin of a hypanthium (the hypanthium very small 
in some Saxifragaceae). 
Plants without secreting glands in the bark Order ROSALES. 
Plants with secreting glands in the bark. 
Surianaceae in Order GERANIALES. 
ug dus several and united. 
vary superior 
amens Inserted at the base of the ovary or receptacle. 
. Stam numerous. 
Sepals s imbricate d. 
“alyx deciduous. Order PAPAVERALES. 
Calyx. persistent. 
Stigmas pinnatifid : insectivorous plants 
Di wT in Order Scene: 
Stigmas not pinnatifid: plants not insectivorous 
(except in Sarraceniales): 
Styles or stigmas distinct or united, but not dis- 
coid. 
Leaves glandular or pellucid-punctate. 
acentae axile. 
utaceae in Order GERANIALES. 
Placentae parietal. 
anellaceae in Order HYPERICALES 
Leaves not glandular. 
Placentae parietal: gynoecium with a 1- 
celled ovary. . 
Anther-sacs opening lengthwise. 
Capparidaceae in Order PAPAVERALES. 
1297 
756 
e 
=! 
e 
