100 FLORA OF SOUTH AUSTRALIA. 
Exocarpos. 
1. Spikes cylindrical, usually shortly pedunculate. 
Leaves minute, scale-like ; a small tree with erect branch- 
lets ; fruit-stalks bright-red, very succulent, longer 
than broad... ian hed es i HP ... Cupressiformis 
Leaves linear-subulate; a small tree with pendent 
branchlets ; fruit-stalks almost dry, green ... ... Sspartea 
11. Spikes very short and scarcely pedunculate, 
the rhachis pubescent. 
A shrub with robust hardly angular branchlets; leaves in 
form of scales; fruit-stalks very succulent, bright 
red: j..% a _ i =i on ha .. aphylla 
1. Spikes reduced to sessile clusters of 2 or few 
flowers. 
. 
A shrub with angular branchlets ; leaves minute, linear ; 
fruit-stalks very succulent, pale-lilac, or whitish ... strict 
ORDER HALORAGEAE. 
Flowers with calyx; petals present at least in the males. 
Fruit usually 1-seeded ; flowers in corymbose pani- 
cles ; petals 2 to 4, large, yellow; stamens 4 to 
8; stigmas 2 to 5. Somewhat shrubby, erect 
herbs of a somewhat bluish tinge, with scattered, 
narrow, entire leaves... Sie a SH .. Loudonia 
Fruit 2- to 4-seeded, not separating into fruitlets ; 
flowers solitary, or clustered within each bract 
forming a simple or paniculate terminal raceme ; 
petals and stigmas 4, rarely 2 or 3, small; stamens 
twice as many as petals. Herbs, or somewhat 
shrubby oa ae a a ee ... Haloragis 
Fruit of 2 or 4 separable nut-like fruitlets ; flowers 
very small, axillary, the upper ones usually males, 
the lower ones females. Aquatic, the submerged 
leaves usually capillary-divided _... sie ... Myriophyllum 
Flowers without calyx and corolla, within two bracte- 
oles; stamen 1; styles 2; ovary 4-celled with 1 
ovule in each cell. Aquatic or mud plants with 
opposite simple leaves ... Po me fh ... Callitriehe 
Loudonia. 
Petals usually 2; stamens 4, styles 2, fruit 2-winged ... Behrii 
Petals 4; stamens 8, styles 4, fruit with 4 broad wings aurea 
