282 DIFFERENTIATION AND SPECIFICITY OF STARCHES. 



Molinia cwrvlcn Mocnch. {draminacca'.) Dry cndospam. Soiiaratod-grains rouiuled-anftiilar or 

 polj'licdral, with coniptiiatively large cavity; size 2 to 5yu. Cuinixjuuil grains have nearly 

 all fallen apart. 



Koeleria laxa Link. [Graminacfce .) Dry endosperm. Compound grains spherical, oval or elliptical 

 (not at all angular), three-fifths to as thick as long, granulated, consisting of 5 to over 2500 

 components; size about 15yu. Separated-grains round or slightly angular; size 1 to 3(U. 



Schismus marginatus Beauv. (Graminacew.) Dry endosperm. Compound giains spherical or oval, 

 frequently somewhat irregular, reticulated-granular; size about 21/i. Separated-grains angu- 

 lar, mostly polyhedral, frequently have a cavity; size 2 to G/x. 



Sesleria eloiigala Host. {Graminacca;.) Dry endosperm. Compound grains, spherical or oval, fre- 

 quently irregular, reticulated-granular; size 24 to 28/i. Separatetl-grains, rounded-angular, 

 or mostly acute-polyhedral, very frequently have a cavity; size 2 to 6 and 7yu. 



Cynosurus echinatus Limi.; Chrysurus echinatus Beauv. {Graminacece.) Dry endosperm. Com- 

 jiound grains spherical to oblong and conical, frequently irregular, two-fifths to just as 

 thick as long, granular or homogeneous, consisting of 10 to over 13,000 almost equal com- 

 ponents; length about 42 to 51;u, thickness about 30 to 36//. Separated-grains, round or 

 rounded-angular; size 0.7 to 2, rarely 3//. 



Lamarkia aurea Moench. (Graminacece.) Dry endosperm. Compound grains rounded-oval to ob- 

 long, half to almost as thick as long, homogeneous or finely granular, consisting of 30 to over 

 8000 components; length about 14//. Separated-grains, rounded; size 0.5 to 1.5yu. 



Harpachne schimperi Hochst. {Graniinaceve.) Dry endosperin. Separated-grains size 1.7 to 8//; 

 the smaller ones rounded-angular, the larger ones polyhedral, and usually with a central 

 cavity which is rounded-angular, or provided with single radial fissures. The compound 

 grains are indistinctly observed within the cells, and only a few are found free. 



Ectrosia leporina R. Br. {Graminacece.) Dry endosperm. Separated-grains polyhedral; size 2 to 

 10//; the larger ones have an angular cavity, also occasionally with several radial fissures. 

 The compound grains are only indistinctly observed within the cells; more or less polyhedral; 

 size about 24//. A few free forms are also found. 



Elytrophorus articulalus Beauv. (Graminacece.) Dry endosperm. Compound grains round or oval, 

 bj' means of pressure they become more or less polyhedral, consisting of over 300 compo- 

 nents; size aljout 25 to 30//. Separated-grains polyhedi-al, with a small roinid or a large 

 ang-ular cavity, occasionally with several radial fissures; size 2 to 10//. 



Festuca fascicularis Lura.; Diplachne fascicularis Beauv. (Graminacece.) Dry endosperm. Compound 

 grains, rounded-oval, elliptical, oblong, conical; most of them by reason of pressure become 

 angular or even polyhedral; reticulated or almost homogeneous. Size about 18 to 22//. 

 Separated-grains usually acute-polyhedral; the larger ones with a central cavity. Size 2 to 

 8 and 9//. The grains above described came from seeds of cultivated specimens; in other 

 seeds (of North American plants) the sizes of the compound gi-ains were aliout 30 to 40/i 

 and of the separated-grains 2.5 to 7//. 



Festuca Jlavescens Bellard; Festuca varia Haenk; Festuca var. jlavescens. (Graminacece.) Dry endo- 

 sperm. Separated-grains, size 2 to 8//; the smaller ones rounded-angular, larger ones acute 

 polyhedral, and frequently have a cavity. No free compound grains are observed. The 

 rather thick-walled endosperm cells separate easily; they are fiUetl with polyhedral part- 

 grains which frequently lie in groups. 



Festuca arundinaeea Schreb.; Festuca elatior Linn. (Graminacece.) Dry endosperm. Compound 

 grains, spherical or oval, reticulated, consisting of 2 to over 1000 components. Size about 

 35/1. Separated-grains, size 2 to 8/i; the smaller ones rounded-angular, the larger ones acute- 

 polyhedral; simple grains few, almost round or oval; size about 9//. 



Festuca diversifolia Balansa. (Graminacece.) Dry endosperm. Compound grains, round or oval, 

 reticulated; size about 20//. Separated-grains polyhedral, the larger ones sometimes hollow; 

 size 2 to 7/1. 



Festuca ehdior Linn.; Festuca prcdcnsis Iluds. (Graminacece.) Dry endosperm. Cornpountl grains 

 almost round or elliptical, reticulated-granular or with distinct ilividing lines, consisting of 

 to over 2000 components. Size aljout 21//. Separated-grains, size 1.5 to 7//; the larger ones 

 polyhedral with a central cavity. In other specimens Niigeli found the size of compound 

 grains to be 28//, and of the separated-grains 1 to 4 and 5;/. 



