88 STUDY OF COMMON PLANTS. 



VII. FRUITS. 



MATERIAL KEQUIRED. 



Mature fruits of sugar maple. Pods of common locust. 



Capsules of opium poppy and of Linaria vulgaris. Mill. 



Fruits of climbing bitter-sweet, Celastrus scandens, L. Cranberries. 



A miscellaneous collection of fruits from the market and elsewhere. 

 Among the most easily procurable are the following: Peanut, 

 acorn, common plantain, coriander, colocynth, milkweed, black 

 pepper, juniper berries, raisins, sumac "berries," rose hip, iig, 

 date, banana, star anise, cardamom, cocoanut, apple, plum, mul- 

 berry, catalpa, spiraea, evening primrose, and mullein. 



COMMON LOCUST. Robinia Pseudacacia, L. 



I. Taking dry, unopened specimens, note all the ex- 

 ternal features, as form, surface, color, and texture. Are 

 there any remains of floral structures ? 



II. Open the pod and draw in outline the inner surface 

 of one of the halves, showing the position, attachment, 

 and form of the seeds. Locate the funiculus and micropyle, 

 and indicate their position by letters and dotted lines. 



III. Describe the structure and mode of dehiscence of 

 the fruit and classify it. How many carpels are there ? 



POPPY. Papaver somniferum, L. 

 I. With uninjured commercial specimens note 



1. The general external characters. 



2. The peculiar stigma. Count the number of divisions. 



3. Mode of dehiscence. 



