222 MATERIAL, APPARATUS, AND SUPPLIES 



Seeds. With endosperm : buckwheat, castor bean, four-o'clock, all grasses, 

 morning-glory, honey locust ; without endosperm i : all Cucurhitacece, most 

 Leguniinosoe, many Eosaceoe. 



Sieve tubes. Stems of CucurbitaceoB, young stems of grapevine. 



Starch. Rootstocks of arrowroot (Maranta), of Canna ; seeds of beans, 

 buckwheat, corn, oats, rice, wheat ; stems of Euphorbias; tubers of potato. 



Stem, dicotyledonous. See Bundles, open. Very young twigs of most hard- 

 wood shrubs and trees. 



Stem, monocotyledonous. See Bundles, closed. Rootstocks of grasses and 

 sedges ; stem of bamboo and of rattan. 



Stomata. Leaves of Aloe, of CrassulacecE, Cycas revoluta, Ficus clastica, 

 Iris, Liliaceoe, oleander. 



Stone cells. Allspice fruit, clove flower stalk, oak bark, pear-fruit stalk. 



Tracheids. Wood of any coniferous shrub or tree. 



Vessels. Leaf of banana ; peduncle of banana, of yucca ; root of 

 Acorus, of Iris; stem of corn, evening primrose, grapevine, rattan, Ricinus, 

 sunflower. 



Water-storage system. Leaves of Agave, Aloe, Ficus elastica, Mesembryan- 

 thaceoi, Peperomia ; stems of Cactacew. 



Wood fibers. Fibrous hard wood, as alder, birch, hickory, linden, locust, 

 magnolia, poplar (Populus). 



Wood parenchyma. Wood of apple, bladder nut, hawthorn, linden, pear, 

 red cedar, rose. 



References. Strasburger-Hillhouse, 6 ; Strasburger, Noll, Schenck, 

 Karsten, 1 ; Tschirch, 74. 



APPAEATUS FOE THE LABOEATOEY 



215. Apparatus. The stocking of a laboratory with apparatus is a matter 

 of time and experience, depending upon the character of the work given. 

 The following list is therefore merely suggestive : 



Aquarium jars. Large battery jars or museum jars are also good. 



Balances, large, capacity yL gram to 2 kilograms, with weights. 



Balances, small, capacity 1 milligram to 100 grams, with weights. 



Battery jars, glass, quarts and gallons. 



Bell jars from five to six inches high, and one or more tall ones. 



Blotting paper. 



Bottles, dropping. 



Bottles, glass stoppered, assorted. 



Bottles, ordinary wide mouthed, assorted. 



Boxes, small, wooden, for germination experiments. 



1 I.e. with the reserve-material practically all contained in the embryo, even 

 if traces of endosperm remain. 



