TYPE If). GRAINS COMPOUND, MANY COMPONENTS. 275 



Leersia oryzoides Swartz. {Graminacecv.) Dry endosperm. Compound grains round or oval, fre- 

 quently somewhat anp;uhir as a result of pressure, sometimes almost polyhedral, consisting 

 of about (iOOO or more; components; size about 25 and 30/u. Separated-gi-ains rounded- 

 angular, or i)olyhedral; the larger ones with a small cavity; size 2 to 7fi. 



Oryza sativa Linn, ((rrnminacew.) Dry endosperm. Compound grains spherical or oval, consisting 

 of 4 to 101) or mor(> almost cqiuil comjionents; size about 25/^. Separated-grains polyhedral; 

 fretiuently with a rather large cavity; size 3.5 to 8/x. 



Hydropyrum esadenlum Linn. ; Zizania aqiialica Linn. {Grammacew.) Dry endosperm. Compound 

 grains, polyhedral as a result of pressure; with numerous components; size 25 and 28;u. Sep- 

 arated-grains rounded-angular; size L5 to 4/u. 



Zinzania davulosa Michx. {Graminacece) probably belongs to this type. The compound grains 

 consist of numerous components; they are isodiametric to oblong, and polyhedral as a result 

 of pressure; size about 30/u. Separated-grains; size 2 to 5/i; the smaller ones rounded-angular, 

 the larger ones polyhedral and hollow. 



Ehrharta panicea Smith. {Graminacecr.) Dry endosperm. Compound grains spherical to elon- 

 gated-oval, occasionally somewhat irregular, homogeneous, or reticulate and granular, con- 

 sisting of more than 3000 components. Size about 40 and 45/x. Separated-grains poly- 

 hedral, usually with sharp borders and angles; frequently hollow; size 2 to 6yu. 



Microlwna stipoides R. Br. {Graminacece.) Dry endosperm. Compound grains almost round or 

 oval, frequently' angidar as a result of pressure, numerous components; about 20/x. Sepa- 

 rated-grains, size 2 to 5 and 7^; the smaller ones are rounded-angular, the larger ones poly- 

 hedral, and have a cavity. 



Cormicopice cucullatum Linn. {Graminacece.) Dry endosperm. Compound grains rounded to elon- 

 gated-lanceolate, sometimes slightly irregular; two-fifths to as thick as long; reticular-granu- 

 lated; size about 54/^. Separated-grains rounded-angular or polyhedral, usually wth a 

 cavity; size L5 to 6/j. 



Phalaris canariensis Linn. (Graminacece.) Dry endosperm. Compound grains spherical to oblong, 

 rarely angular, half to as thick as long, reticulate-granulated, rarely almost homogeneous, 

 consisting of 4 to 2000 components; length about 36ai, thickness about 25/j. Separated- 

 grains rounded-angular or polyhedral; size 2 to B/x. 



Phalaris bulbosa Cav.; Phalaris cccndescens Desf. (Gramiiuicew.) Dry endosperm. Starch as in the 

 preceding. Compound grains consisting of 3000 and more components; size about 48/i. 



Antho.Tanthnm amarum Brot. {Graminacem.) Dry endosperm. Compound grains spherical or oval, 

 reticulate-granulated; size about 25yu. Separated-grains rounded-angular; size 1 to 4/i. 



Hierochloa borealis Roem. and Schult. {Graminacece.) Dry endosperm. Compound grains spherical 

 or oval, sometimes slightly irregular; consisting of 1000 or more components; size about 30 

 to 40jLi. Separated-gi-ains with rather sharp borders and angles; size 2 to 7^. 



Holcus lanalus Linn. {Graminacece.) Dry endosperm. Compound grains round or oval, homo- 

 geneous or distinctly granular, consisting of 1000 or more components; size about 14/i. Size 

 of the separated-grains 1 to 2n. 



Bechmannia erucccformis Hochst. {Graminacece.) Dry endosperm. Compound grains rounded-oval 

 to oblong, finely granular; size about 28 to 35iU. Separated-grains round or polyhedral; size 

 1 to 3 and 4/a. 



Lygeum spartum Liim. {Graminacece.) Dry endosperm. -Compoimd grains spherical to elongated- 

 oval, reticulated-granular; size about 24>i. Separated-grains rounded angular or poly- 

 hedral; size 1 to 4m . 



Milium effusum Linn. {Graminacece.) Dry endosperm. Componnd grains spherical or oval, reticu- 

 lated-granular; size about 24/i. Separated-grains rounded to polyhedral, frequently with a 

 small cavity; size 1.5 to 5/i. 



Milium vernale Biebrst. Dry endosperm. Compound grains spherical or oval; homogeneous, or 

 granulated by delicate reticulations; size about 14yu. Separated-grains rounded-angular; 

 size 1 to 3ju. 



Panicum commelincefolium Rudge. {Graminacece.) Dry endosperm. Compound grains rounded 

 or oval, frequently more or less angular as the result of pressure, granular; size about 12 to 

 15^1. Separated-grains roimded; size 1 to 2.5yLi. Starches of the seeds from Brazil and Guate- 

 mala agree perfectly with those above described. 



