TYPE 1. GTIAINR RT1\TPT,E, TENTRTC, SPTTKTUCAL. 201 



Uniola latifvlia Michx. {Graminaccxr.) Dry seed. — Oniius rounded, risually more or loss polyhedral 

 owing to pressure, slitfhtly if at all compressed, usually hollow. Size about 20p. 



Chusquea cumingii Nees. (Graminacece.) Dry seed. — Grains rounded, angular with rounded corners 

 to polyhedral; the larger ones with central cavity and some with radial fissures. Size about 

 loti. No indications of compound grains within the cell. 



Orihoclada laxa Beauv. (Graminacea.) Dry seed. — Grains angular with rounded corners, or poly- 

 hedral; lamella;, if any, dehcate, homogeneous, or very slight. Size about 35 to 40ju. The 

 j)rotoplasmic cells, the outlines of which are often quite indistinct, are filled with two kinds 

 of grains of tmequal size, the smaller Ij'ing in between the larger. 



Hemarlhria fascicidala Kimth. {Graminacece.) Dry seed. — Grains sphcricid or oval-spherical, usually 

 polyhedral, or sometimes angular owing to pressure; the larger ones with usually a small 

 central cavity and several radial fissures. Size about 15//. 



Rotlbcella arundinacea Hochst. {Graminacece.) Dry seed. — Grains spherical or oval-spherical, some- 

 times angular owing to pressure; the larger ones usually ^vith a small central cavity, and 

 frequently with several radial fissures. Size about lOyu. Some comiDOund grains of few com- 

 ponents (tyjje 14). 



Manisuris granularis Swartz. {Graminacece.) Dry seed. — Grains rounded or angular with rounded 

 corners, frequently spherical or oval-spherical; the larger ones with a central cavity, and 

 usually with a few radial fissures. Size about 12fi. 



Andropogon dissitijiorus Michx. {Graniinacew.) Dry seed. — Grains spherical or oval-spherical, ami 

 angular with rounded corners; with a central cavity and radial fissures. Size about IB/x. 

 Single separated-grains with one cm-ved surface and one to three pressure facets indicate 

 the former existence of compound grains. 



Andropogon contortus Liim.; Hcteropogen contorius R. and S. {Gi'aminacece.) Dry seed. — Grains 

 rounded or angular to polyhedral owing to pressure; with a small central cavity, and some 

 radial fissiu-es. Size about 15 to 21/^. 



Andropogon diversiflorus Steud. {Graminacece.) Dry seed. — Grains angular, with rounded corners, 

 to polyhedral; with small central cavity and a few radial fissures. Size about 10 to 21/Li. 



Andropogon leucostachyus Humb., Bonp.; HypogyniumcampestreNecs. {Graniinacece.) Dry seed. — 

 Grains spherical, rounded-oval, or angular with rounded corners; with central cavity and 

 radial fissiues. Size about 20yu. Among them isolated compound grains consisting of a few 

 components may be found; also separated-grains with one curved and 1 to 3 jilane surfaces; 

 cavity with single ratlial fissures. 



Andropogon ischcemum Linn. {Graminacece.) Dry seed. — Grains spherical, or with rounded corners, 

 or polyhedral; with small central cavity and a few radial fis.sures. Size about 13ai. No 

 compound grains; a few separated-grains, as in Andropogon leucostachyus, appear to be present. 



Andropogon umbrosus Hochst. {Graminacece.) Dry seed. — Grains rounded, more or less angular 

 to polyhedral, owing to pressm-e; with small central cavity and single radiating fissures. 

 Size about 15 to 19/x. 



Andropogon laguroides DC. {Graminacece.) Dry seed. — Grains spherical, oval-spherical, and angu- 

 lar with rounded corners; with large or small cavity and radial fissures. Size about 15;^. 

 Some separated grains with 1 to 3 pressure facets appear to 1 )e present. 



Andropogon argenteus DC. {Graminacece.) Dry seed. — Grains spherical, frequently somewhat 

 angular owing to pressure; with rather large cavity. Size about 14/^. Seeds not entirely 

 ripe. 



Andropogon cernus Roxb.; Sorghum cernus Willd. {Graminacece.) Dry seed. — Grains as in above, 

 solid or with small central cavity and single radiating fissure; sometimes split by the fissures 

 into what appear to be separate grains. Size about 13(U. Some grains have a granular siuface. 



Andropogon sorghum Brot.; Sorghum vulgare Pers. {Graminacece.) Dry and fresh seed. — Grains 

 sjiherical or oval-spherical, sometimes more or less polyhedral owing to pressure; fresh, 

 with distinct central hilum, rarely with radial fissures; dry, usually with central cavity from 

 which fissures radiat(^ Size about 11 to 15/:. According to Payen, the diameter is 30^1. 

 Among these are found compounil grains of 2 to 4 or 5 part-grains. 



Andropogon adculalus Retz. ; Chrysopogon aciculatus Trin. {Graminacece.) Dry seed. — Grains s])her- 

 ical or rounded-oval; with large or small central cavity from which fre(iU(^iitly fissures radiate. 

 Size about 14^. Among these are found some doublets and triplets. 



