222 
ORGANOGRAPHY. 
BOOK I. 
143 144 139 
136 Syncarpous Capsule of Euonymus. 137. Apocarpous Capsule of Nigella. 138. Legumen. 
139. Legumen with the two valves opened. 140. Folliculus. 141. Conceptaculum, or 
; Double Folliculus. 142. Apocarpous Capsule of Delphinium. 143. Capsule of Lychnis. 
144. Capsule of Lychnis cut through, and showing the free central placenta. 
145. Samara. 146. Capsule of Rhododendron. 147. Capsule of Rhododendron divided across 
148. Capsule of Staphylea. 149, 150. Cypsela of Compositae. 151. Capsule of Aristo- 
lochia. 152. Capsule of Aristolochia cut across. 153. Capsule of Staphylea cut across. 
the course of the advance of the ovary to maturity, many 
changes often occur which contribute to conceal the real 
structure of the fruit, it is in all cases advisable, and in many 
absolutely necessary, to examine the ovary, in order to be 
certain of the exact construction of the fruit itself. These 
changes are caused by the abortion, non-developement, obli- 
teration, addition, or union of parts. Thus the three-celled 
six-ovuled ovary of the oak and the hazel becomes, by the 
non-developement of two cells and five ovules, a fruit with one 
seed ; the three-celled ovary of the cocoa-nut is converted 
into a one-celled fruit, by the obliteration of two cells and 
