TYPE 10. GRAINS COMPOUND, MANY COMPONENTS. 285 



Fcstuca riyida Kunth.; Sdcrochloa rigida Piinz. {Graminacem.) Dry c7idosperm. — Comijouud grains 

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

 almost homogeneous, consisting of over 2000 components. Size; about 27^4. Separatod- 

 gi-ains almost roimd or rounded-angular; size 1 to 3/j. 



Fesluca divaricata Desf. (Gramiiiacew.) Dry endosperm. — Compound grains almost round or ellip- 

 tical, granular. Size about 21^. Separated-grains rounded-angidar; size 0.7 to 2 and 3ai. 



Fesluca tenuiflora Schrad. (Graminacca;.) Dry endosperm. — Compound grains almost round or 

 oval, frequently somewhat irregidar, homogeneous or finely granular. Size about 20/(. 

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



Festuca delicatula Lagasc. ; Vulpia delicatula Link. (Graminacew.) Dry endosperm. — Compound grains 

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

 granular or almost homogeneous, containing over 3000 components. Size about 16 to 22/i. 

 Separated-grains round or rounded angular. Size 0.7 to 2.5/i. 



Festuca ciliata Link. (GraminacecB.) 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 2.5//. 



Festuca genicuhia Willd. {Graminacece.) Dry endosperm. — Compound grains round or oval, fre- 

 quently angular, also granular. Size about 18ju. Separated-grains rounded, size 0.8 to 2/i. 



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

 eUiptical, homogeneous or finely granulated. Size about 15^. Separated-grains rounded, 

 size 0.8 to 2ix. 



Fesluca macrophijlla Hochst. (Graminacece.) Dry endosperm. — Compoinid grains roimd to oblong, 

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

 grains rounded. Size 0.7 to 2fi. 



Brcnnus lilloralis Hort. {Graminacece.) Dry endosperm. — Compound grains spherical or oval, reticu- 

 lated-granular, finely granular or homogeneous. Size about 17yu. Separated-grains roimded- 

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



Diarrhena americana Beauv. {Gra^ninacecc.) Dry endosperm. — Compound gi-ains spherical or oval, 

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

 larger ones have a cavity. Size 2 to 6/.1. 



Lolium canadense Michx. {Graminacca;.) Dry endosperm. — Compound grains rouTided or oval, half 

 to as thick as long; granular, consisting of 20 to over 4000 components. Length 40 to 15yu; 

 thickness about 30^. Separated-grains rounded-angiilar to acute polyhedral. Size 1.5 to (lyu. 



Lolium temulentutn Liim., var. speciosum Link. {Graminacece.) Dry endosperm. — Compound grains 

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

 42/i. Separated-grains polyhedral; the larger ones have a small cavity. Sii;e 1.5 to (V. 



Fsilurus nardoides Trin. {Graminacece.) Dry endosperm. — 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 4ju. 



Leplurus incurvatus Trin.; Ophiuru^ incurvalus Beauv. {Graminacece.) 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//; thiclmess about 18//. Separated-grains round. Size 1 to 2/j. 



Leplurus fdiformis Trin.; Ophiurus filijormis Roem and Schult. {Graminacece.) Dry endosperm. — 

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

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



Cenlrolepis Jascicularis Labil.; Desvauria billardieri R. Br. {Ccnlrolepidece.) Dry endosperm. — 

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

 18/1. Separated-grains semi-spherical with one or more pressure facets, or polyhedral with 

 one cm-ved surface, or exactly polyhedral (only bounded by pressure facets), usually with 

 a large or small cavity and several radial fissiu'es. 



Aphelia cyperoides R. Br. {Centrolepidece.) Dry endosperm. — Separated-grains angular or i)oly- 

 hecb-al, more or less irregular, usually compressed. Size 2 to 9/i. Compound grains could 

 not be positively distinguished. 



