TYPE 16. GRAINS COMPOUND, MANY COMPONENTS. 285 



Fcstuca rigida Kuuth.; Sclcrockloa ri(jida Panz. {Graminacece.) Dry endosperm. Compound grains 

 round to oblong usually somewhat irregular, half to almost as thick as long, granular or 

 almost homogeneous, consisting of over 2000 components. Size aliout 27/u. Scparated- 

 grains almost roimd or rounded-angular; size 1 to 3/u. 



Festuca diraricata Desf. {Gravrrnacem.) Dry endospervi. Compound grains almost round or ellip- 

 tical, granular. Size about 21(U. Soparated-grains rounded-angiilar; size 0.7 to 2 and 3^. 



Festuca tenuiflora Schrad. {Graminacece.) Dry endosperm. Compound grains almost round or 

 oval, frequently somewhat irregular, homogeneous or finely granular. Size about 20/^. 

 Separated-grains rounded-angular; size 1 to 2, rarely 3^. 



Festuca delicatida Lagasc. ; Vulpia dclicaluln Link. {Graminacem.) Dry endosperm. Coznpound grains 

 rounded-oval to oblong, occasionally somewhat irregular, two-fifths to almost as broad as long, 

 granvilar or almost homogeneous, containing over 3000 components. Size about 16 to 22ji:. 

 Separated-graius round or rounded angular. Size 0.7 to 2.bii. 



Festuca ciliata Link. {Graminacece.) Dry endosperm. Compound grains rounded, elliptical, oblong, 

 conical, frequently angular by means of pressure, finely reticulate or almost homogeneous. 

 Size about 16.. Only a few separated-grains rounded or rounded-angular are present. Size 

 0.7 to 2.5m. 



Festuca geniculata Willd. {Graminacca:.) Dry endosperm. Compound grains round or oval, fre- 

 quently angular, also gi-anular. Size about 18//. Separated-gi-ains rounded, size 0.8 to 2/i. 



Festuca memphitica Boiss. {Graminacece.) Dry endosperm. Compound grains spherical, oval, 

 elliptical, homogeneous or finely granulated. Size about 15//. Separated-grains rounded, 

 size 0.8 to 2/1. 



Festuca mocrophylla Hochst. {Graminacece.) Dry endosperm. ComY,o\i\\A gi-ains round to oblong, 

 frequently angular as a result of pressure, reticulated-granular or granular. Separated- 

 grains rounded. Size 0.7 to 2^. 



Bromus littoralis Hort. {Graminacew.) Dry endosperm. Corn-pound grains spherical or oval, reticu- 

 lated-granular, finely granular or homogeneous. Size about 17//. Separated-grains rounded- 

 angular or acute polyhedral, size 1.5 to 5//. This starch is related to the genus Festuca. 



Diarrhena americana Beauv. {Graminacem.) Dry endosperm. Compound grains spherical or oval, 

 reticulated. Size about 24/t. Separated-grains polyhedral with acute angles and margins; 

 larger ones have a cavity. Size 2 to 6/:. 



Loliurn canadense Michx. {Graminacew.) Dry endosperm. Compound grains rounded or oval, half 

 to as thick as long; granular, consisting of 20 to over 4000 components. Length 40 to 45/t; 

 thickness about 30//. Separated-grains rounded-angular to acute polyhedral. Size 1.5 to 6//. 



Loliurn temulentum Liim., var. speciosum Link. {Graminacece.) Dry endosperm. Compound grains 

 spherical, oval, or somewhat irregular, homogeneous, or reticulated-granular. Size about 

 42//. Separated-gi-ains polyhedral; the larger ones have a small cavity. Size 1.5 to 6/i. 



Psilurus nardoides Trin. {Graminacew.) Dry e7idosper7n. Compound grains rounded to oblong, 

 frequently irregularly angular, half to almost as thick as long, granular to homogeneous, 

 consisting of over 2000 components. Size about 15//. Separated-grains round or rounded- 

 angular. Size 0.5 to 4//. 



Lepiurus incurvalus Trin.; Ophiurus incurvatus Beauv. {Graminacew.) Dry endosperm. Compound 

 grains rounded-oval to oblong (not at all angular), two-thirds to almost as thick as long; 

 slightly granular or almost homogeneous, consisting of 20 to 8000 components. Length 

 about 33//; thickness about 18//. Separated-grains round. Size 1 to 2//. 



Lepturus filiformis Trin.; Ophiurus fdiformis Roem and Schult. {Graminacew.) Dry endosperm. 

 Compound grains rounded-oval to oblong, usually more or less angular by means of pressure, 

 homogeneous, rarely finely granular. Size about 16//. Separated-grains round. Size 0.5 to 2/i. 



Centrolepis fascicidaris Labil.; Desvauxia biUardieri R. Br. {Centrolepidew.) Dry endosperm. 

 Compound grains spherical or oval, consisting of 2 to over 16 equal components. Size about 

 18//. Separated-grains semi-spherical with one or more pressure facets, or polyhedral wth 

 one curved surface, or exactly polyhecbal (only bounded by pressure facets), usually with 

 a large or small cavity and several radial fissures. 

 Aphelia cyperoides R. Br. {Centrolepidew.) Dry endosperm. Separated-grains angular or poly- 

 hedral, more or less irregular, usually compressed. Size 2 to 9//. Compoimd grains could 

 not be positively distinguished. 



