a44 T R I N I u s, 



Lanceolatls, pl. min. aculis, bifloris: flosculo allero i-valvi, 



altero bi-valvi Saccharum. 



Oblongis, obtusis, inverse unifloris vel bifloris: flosculo 



altero i — , allero bi-valvi Eriochrysis. 



b) Articulo in radiolis terminali, solltario, 



a) Libero : 



Spicula in apice radiorum solilaria Arthropogon. 



Spiculis in apice radioloram ternis: duabus pedicellalls . Chrysopogon. 

 jT) Spatha involucrato: 



Spiculis (praeter squamas sterlles intra spatham) in arli- 



culo binis: utraque pedlcellata Apluda. 



Spiculls (practer squamas steriles inlra spalham) septem, 



fasclculalis : media hermaphrodlta . . . . . . Anthesteria. 



IL Spicuhic ad axln contlnuum (non articulatum) sessiles vel pe- 

 dlcellatae , 



i) Heterogeneae Sorghum. 



2) Ilomogcneae , 

 o) Pedlcellatae ; 



In radlolls jubae thyrsiformis, muticae Imperata. 



In racemis fasciculatis jubatisve, aristatae Eulalla. 



b) Sessiles ; 



Axi accumbentes, aristatae Dimeria. 



Axl excavato immersae, mutlcae . Oropetium. 



