NATURAL ORDERS, Ixxvii 
XXVIII. Onagracez. Perianth in twos or fours. Stamens definite, 
Ovary inferior. One style. 
XXVIII. Lytharies. Stamens usually definite, inserted with the 
petals at the top of the calyx-tube. Ovary syncarpous within the base 
of the tube. One style. Lower leaves opposite. 
XXIX. Cuburbitacez. Climbers with tendrils. Flowers unisexual. 
Ovary inferior. 
XXX. Crassulacez. Leaves succulent. Sepals, petals, stamens of 
one or two rows, and free carpels, all isomerous. 
XXXI. Ribesiacee. Shrubs. Flowers regular. Stamens definite, 
Ovary inferior. Placentas parietal. One style. 
XXXII. Saxifragacee. Flowers regular. Stamens definite. Ovary 
syncarpous at the base, but a separate style for each carpel. 
XXXIII. Droseracee. Herbs with radical leaves covered with 
long glandular hairs. Flowers regular. Stamens definite. Placentas 
parietal. Styles distinct. 
XXXIV. Halorages. Aquatic herbs with very small flowers. Calyx- 
lobes and petals 4, 2, ornone. Stamens definite. Ovary inferior. Styles 
or stigmas distinct. 
** Petals and stamens epigynous (round an epigynous disk). 
XXXV. Umbellifere. Leaves alternate, Fruit dry, separating from 
the axis into seed-like carpels. — 
XXXVI. Araliacez. Leaves alternate. Fruit succulent. Carpels 
often more than 2, and not separating. 
XXXVII. Loranthacee. Parasites. Stamens on, or opposite to the 
petals. Leaves usually opposite. Ovary 1-celled. 
XXXVIII. Cornacez. Leaves usually opposite. Stamens alternate 
with the petals. Style one. 
Subclass 3. MONOPETALZ.—Petals united (at least at the base) into a 
single corolla. [The petals are absent in some Primulacez and Oleacee, 
and are free in some Hricaceze and Plumbaginee. | 
§ 1. Corolla epigynous, bearing the stamens. 
XXXIX. Caprifoliacese. Leaves opposite. No stipules. Ovary 2- 
or more-celled. 
XL. Stellate (a tribe of Rubiacex). Stipules like the leaves in 
appearance, and forming whorls with them round the stem. Ovary 
2-celled, with 1 seed in each cell. 
XLI. Valerianee. Stamens fewer than the lobes = the corolla, 
Ovary and fruit 1-seeded. 
XLII. Dipsacee. Florets in compact heads or spikes. Stamens 
isomerous. Anthers free. Ovary and fruit 1-seeded. 
XLIII. Composite. Florets in compact heads. Stamens isomerous, 
Anthers united in a ring round the style. Ovary and fruit 1-seeded., 
§ 2. Stamens free from the corolla. 
XLIV. Campanulacee. Herbs. Stamens as many as the corollas 
lobes. Anthers opening longitudinally, 
XLV. Ericacee. Shrubs. Stamens usually twice as many as the 
corolla-lobes. Anthers opening in pores or cross-valves. 
