STARCH. Et} 
(4) Farinaceous endosperm (Fig. 48): granules more round- 
ish, occasionally without a cleft. They do not completely fill 
the cell, and therefore are not sharply flattened polyhedrically 
against each other. 
7. Rice Starcu (Oryza sativa, Fig. 50), only typical forms ; 
very sharply angular, almost crystal-like, fractured granules, 
occasionally several still connected, without a nucleus cleft. 
Fie. 50.—Rice starch (Tschirch). 
8. Oat StarcH (Avena sativa, Fig. 51). Type: large, oval 
aggregations, as much as 73°; mm. (50 yu) in size, composed of 
from two to three hundred granules and their components 
(Fig. 51 6). The latter are polyhedric and sharply angular, 
without a distinct nucleus. ‘ 
Fig. 51.—Oat starch. a, Secondary form—filling granules ; b, component granules 
of the aggregation (Tschirch). : 
Secondary form: small, roundish, spindle-shaped,’ similar to 
the fractured granules, the so-called ‘‘ filling starch.” 
Like the cell-membrane, the starch granules, in consequence 
1 Moeller (‘Die Mikroskopie der Cerealien,” in- the Pharm. Central- 
halle, 1884, No, 44-48) declares these to be the characteristic forms. 
