142 



LESSONS WITS PLANTS 



¥ia.U\. 



Pig. 142. 



Cross-section of 

 ovary of tulip. 



as employed by anatomists and physiologists. Loeule is an- 

 glicized from loculus, diminutive of Latin locus, "a place." 



157. In the hepatica (Figs. 

 131, 132), there are several dis- 

 tinct pistils in a head. Each 

 one contains but a single loeule, 

 and ripens but a single seed 

 (Fig. 141). The pistil of the 

 Ripened ^'^^^V, howcver (Fig. 142), has 

 h^epatica. ^^^^ loculcs. Corresponding to as many sides 

 or angles. Pistils contain different num- 

 bers of locules, according to the kind of plant of 

 which they are a part. 



157a. Pistils with one loeule are unilocular or 1-loouled; those 

 with two are bilocular or 2-loouled; those with three, trilocular or 

 3-loculed; those with four, quadrilocular or 4-loouled; those with 

 five, quinquelooular, or 5-loouled; those with several or many, mul- 

 tilocular, or oo-loculed. 



158. The ovary is not only variously divided 

 into compartments, but the ovules (or bodies which 

 mature into seeds) a];e attached to different parts 

 of the loeule. In the mustard they are attached 

 to the central partition of the ovary, in the tulip 

 to the interior walls of the locules, in the corn- 

 cockle (Fig. 143) to a columnar central portion, 

 and in the plum (Fig. 144, o) to the outward side 

 of the loeule. In general, there is a more or less 

 distinct elevation or thickening of tissue at the 



