for the Microscope. II 



73. STIGMA OF CORN CHAMOMILE (Anthemis arvemis}. 

 The stigmas of the florets of composite plants are very 

 variable and often curious. That of the present plant is 

 twice forked and erect, (PI. I., fig. 30.) 



74. STIGMA OF GOAT'S-BEARD (Tragopogon pratense), 

 The stigmas of the florets are forked once, and each divi- 

 sion is gracefully recurved. (PI. I., fig. 31.) 



75. STIGMA OF MAYWEED (Anthemis cotula). The 

 stigmas resemble the last, except that each division of the 

 fork is again subdivided near the tip, and the ultimate 

 subdivisions are also recurved. (PI. I., fig. 32.) 



76. STIGMA OFWILLOW (Satix repens, &c.) This stigma 

 is bifurcate, with spreading segments nearly in the form of 

 a cross. 



77. MALLOW STAMENS (Malva sylvcstris). These sta- 

 mens are united round the stigma, and, when mounted 

 entire, with the pollen just escaping, there is scarcely a 

 more beautiful object for a low power to be found in the 

 vegetable world. 



78. FLORET OF COLTSFOOT (Tussilago farfar). The 

 entire floret of Coltsfoot, with the pappus attached, is a 

 very good object, as are also the florets of the daisy and 

 many other composite flowers. 



79. PAPPUS OF GOAT'S-BEARD (Tragopogon pratense). 

 The star-like parachute which surmounts the seed of the 

 Goat's-beard is a pretty object. 



STARCH may be readily obtained from the tubers and 

 roots of some plants, the fruit or seed of some, and the 

 stems or rhizomes of others. If the portion containing 

 starch is rasped down or grated into water, the granules 

 of starch will be liberated from the cells, and in a little 

 time subside at the bottom of the water. After washing 

 two or three times in distilled water, the deposit may be 

 mounted dry or in silicate of soda. 



80. WHEAT STARCH consists chiefly of large and small 

 grains, with a few of intermediate size. The smaller are 

 nearly globose, the larger rounded and flattened. In some 

 granules concentric lines are faintly traced. 



8 1. RICE STARCH. The granules are angular and very 



