ey el 
POLYPETALAE. 65 
Seeds exalbuminous. Ovules attached 
to basal or more or less parietal pla- 
centas. Leaves scale-like, exstipulate. 
Flowers spicate or racemose. Sepals and 
petals imbricate. Disc present. Seeds 
with a tuft of hairs at the top. Europe, 
Asia, Africa. Tamarisevnede. 
(0) Petals perigynous, more rarely hypo- 
gynous, and then herbs. Seeds albu- 
minous. Ovules attached to parietal 
placentas. 37. 
37 (a) Anthers extrorse. Herbs with glandular 
hairs. Leaves circinate in bud. Sepals 
and petals imbricate in bud. Stamens 
isomerous. Disc 0. Placentas 2-5, al- 
ternating with the styles. Droseraceae. 
(4) Anthers introrse. — 88. 
38 (a) Styles and placentas 2. Stamens usually 
twice as many as petals. Herbs. 
Saxifrageae. 
(6) Styles and placentas 3-5. Stamens as 
many as petals. 39. 
39 (a) Receptacle (calyx-tube) enlarged to a disc- 
like or fringed corona, more rarely 
without a corona; in the latter case 
flowers unisexual. Petals imbricate 
(and not contorted) or valvate in bud, 
E 
