282 DIFFERENTIATION AND SPECIFICITY OP STARCHES. 



Molinia cacridca Mocnch. (Graminacece.) Dry endosperm.— Separated-grains rounded-angular or 

 jjolyhcdral, witli comparatively large cavity; size 2 to 5^- ConipoTind grains have nearly 

 all fallen a])art. 



Kceleria laxa Link. {Graminacece.) 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 15/i. Separated-grains round or slightly angular; size 1 to "in. 



Schi.'imus marginalus Beauv. {Graminacece.) Dry endosperm. — Compound grains spherical or oval, 

 frequently somewhat irregular, reticulated-granular; size aliout 21/;^. Separated-grains angu- 

 lar, mostly polyhedral, frecjuently have a cavity; size 2 to 6/^. 



Scslcria eloiujaia Host. (Graminacece..) Dry endosperm. — Compound grains, spherical or oval, fre- 

 quently irregular, reticulated-granular; size 24 to 28ju. Separated-grains, rounded-angular, 

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



Cynosurus echinalus Linn.; Chrysurus cchinatus Beauv. {Graminacece.) Dry endosperm. — Com- 

 pound 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;u. 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/i. Separated-grains, rounded; size 0.5 to 1.5/i. 



Harpachne schimperi Hochst. {Graminacem.) Dry endosperm. — Separated-grains size 1.7 to 8/j; 

 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 

 lO/x; 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 articulatus Beauv. {Graminacece.) Dry endosperm. — Compound grains round or oval, 

 by means of pressiue they become more or less polyhedral, consisting of over 300 compo- 

 nents; size about 25 to 'SO/x. Separated-grains polyhedral, with a small round or a large 

 angular cavity, occasionally with several radial fissures; size 2 to IQ/i. 



Festucafascicularis Lam. ; Diplachne Jascicularis 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/i. 

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

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

 seeds (of North American plants) the sizes of the compound grains were about 30 to 40/j 

 and of the separated-grains 2.5 to 7ju. 



Festuca Jlavescens Bellard; Festuca varia Haenk; Festuca var. flavescens. (Graminacew.) Dry endo- 

 sperm. — Separated-grains, size 2 to 8;u; 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 filled with polyhedral part- 

 grains which frequently lie in groups. 



Festuca arundinacea Schreb.; Festuca elatior Linn. {Graminacew.) Dry endosperm. — Compound 

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

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

 polyhedi-al; simple grains few, almost round or oval; size about Q/jl. 



Festuca diversifoUa Balansa. {Graminaceie.) Dry endosperm. — Comjjoiaul grains, round or oval, 

 reticulated; size about 20fi. Separated-grains polyhedral, the larger ones sometinies hollow; 

 size 2 to 7yLi. 



Festuca elatior Linn.; Festuca pratensis Huds. {Graminacece.) Dry endosperm.- — Compound grains 

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

 G to over 2000 comjiouents. Size about 21ju. Separated-grains, size 1.5 to In ; the larg<;r ones 

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

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



