276 DIFFERENTIATION AND SPECIFICITY OF STARCHES. 



Urochloa deprcssa Steiid. (Graminacccc.) Dry endosperm. Conijioiind grains isodiametric to oblong, 

 more or less polyhedral as the result of pressure, reticulated-granular or granular; size about 

 20]U. Separated-grains round or rounded-angular; size 0.7 to 2.5^. 



ArundineUa nepalensis Trin. {Graminaeeee .) Dry endosperm.- Compound grains spherical, or oval, 

 or low cone-shaped (not angular) ; two-fifths to as thick as long; reticulated-gTauular or almost 

 homogeneous; consisting of 4 to 1000 or more components; size about .30/i. Separated- 

 grains size 2 to Gfi; the larger ones poljdiedral, and have a cavity. 



Dichelachne vulgaris Trin. (Graminacew.) Dry endosperm. Compound grains rounded, elliptical, 

 oblong, conical; delicately granular; consisting of 1000 or more components; size about 18;:. 

 Separated-grains roinided; size 0..5 to 2,u. 



Urachnc parviflora Trin.; Piplatherum midtiflorum Beauv. {Graminacea.) Dry endosperm. Com- 

 pound grains round or oval, consisting of 6 to 1000 or more equal components; size about 18m. 

 Separated-grains rounded-angular, the larger ones polyhedral, usually with a central cavity; 

 size 2 to 7yu. 



Stipa papposa Nees. (Graminacece.) Dry endosperm. Separated-grains rounded-angular, the larger 

 ones polyhedral, and have a cavity; size 2 to 6 and 7ix. Of compound grains only fragments 

 and a few complete ones remain. 



Stipa gigantea Lagasc. (Graminacew.) Dry endosperm. Separated-grains rounded-angular, the 

 larger ones with a small cavity ; size 1 to 4;u. Only a few compound grains are present. Simple 

 centric-lenticular grains are also found. 



Stipa pennata Linn. (Graminacea;.) Dry endospcr7n. Separatcd-gi'ains rounded-angular or poly- 

 hedral; size 2 to 4yu. Compound grains are only observed within the cells. 



Lasiagrostis calamagrostis; Stipa calamagrostis Whlbrg. (Graminacece.) Dry endosperm. Com- 

 pound gi-ains round or oval, frequently slightly angular, as a result of pressure; reticulated- 

 granular; falling apart easily; size about \5ti. Separated-grains usually polyhedral, fre- 

 quently have a cavity; size 2 to 9 and ll;u. Grains which are probably simple are found among 

 the above; size 9 to 11 and 13^; with central cavity and occasionally single rachal fissures. 



Aristida hystrix Linn. (Graminacece.) Dry endosperm. Separated-grains, size 1..5 to 6/k; the smaller 

 ones roimded, larger ones polyhecbal, and have a cavity. Compound grains embedded in 

 protoplasm are only observed wthin the cells of thin sections of the tissue; they are rounded 

 or rounded-angular; size about 15 to 20^. 



Ari.'stida amplissima Trin.; Aristida stipifnrmis Lam. (Graminacece.) Dry endosperm. Separated- 

 grains polyhedral, antl have a cavity; size 2 to lOyu. A few free compound grains which in 

 thin sections can be distinctly seen within the protoplasm, which latter takes a yellow color 

 when treated with iodine. Grains spherical, oval, or rounded-angular; reticulated; size 

 about 28(U. 



Aristida plumosa Linn. (Graminacea;.) Dry endosperm. Separated-grains ]3olyhedral; the larger 

 ones have a cavit}'; size 2 to 8/i. Not many distinct compound grains; round, oval, or ellip- 

 tical; reticulate, or reticulated-granular; size about 26^. 



Aristida funiculata Trin.; Aristida kotschyi Hochst. (Graminacea;.) Dry endosperm. Separated- 

 grains, size 1 to 5m; smaller ones rounded, larger ones polyhedral, and have a cavity. 

 Compound grains few, round or oval. 



Nardus stricta Linn. (Graminacea;.) Dry endosperm. Compound grains spherical or oval (not an- 

 gular), three-fifths to as thick as long, and consisting of 4 to 300 components; size about 

 18/i. Separated-gi'ains rounded-angular, the larger ones polyhedral, and have a cavity; 

 size 1.5 to dfjL. 



Mgopogon cenchroides Willd. (Graminacea;.) Dry endosperm. Separated-grains polyhedral, the 

 larger ones have a cavity; size 2.5 to 7fx. A few compound grains are free and some are 

 indistinctly observed ^vithin the cells; round or o^'al and more or less angular as a result of 

 pressure; size about 20^. 



JEgopogon multisetus Trin. (Graminacece.) Dry endosperm. Starch as in the preceding. Size of 

 the separated-grains 2 to 6^. 



Lycurus phalaroides Humb. Bonpl. (Graminacece.) Dry enrfosperm. Separated-grains polyhedral, 

 and have a cavity; size 2 to lO/i. Compound grains are observed indistinctly within the 

 cells, and also a few free grains; isodiametric or oval, more or less polyhedral due to pressure; 

 size about 25^. 



