42 AN INTRODUCTION 
The Diffepiments are either parallel to the 
Valvules, as in Luxaria and Draba; or 
placed the contrary Way, as in Bifcutella 
and Th/afpi. 
The moft confiderable Differences in the 
FIGURE of the Pericarpium, with the 
Names affigned for each, have been explain-~ 
ed in Chap. 6. It varies farther, in being 
Turbinate, narrowing like a Child's Top, as in 
Pyrus; Inflate, puffed, as in Cardiofpermum 
and Staphylea; Membranaceous, compofed of 
thin Membranes, asin Ulmus; Triquetrous, 
Tetragonous, Pentagonous, of three, four, or 
five Sides, as in Averrhoa, Zygophyllum, &c. 
or Articulate, jointed, as in Ormithopus, 
Hedyfarum and Raphanus, 
The OPENING of the Pericarpium for 
difcharging the Seeds when the Fruit is ripe, 
is either at the Apex, which may be Quadri- 
dentate, [plit into four Segments, asin Dian- 
thus ; Quinquedentate, into five, as in Aljfine ; 
or Decemdentate, into ten, asin Ceraftium; 
opening at the Bae Trifariam, into three 
Parts, as in Triglochin, and Campanula; or 
Quinquefariam, into five Parts, as in Ledum ; 
at the Angles, Corners, longitudinally, length- 
ways, as in Oxalis and Orchis; through a 
Pore, Hole, as in Campanula ; or horizontally 
acrofs 
