884 LV. GRAMINE^. 



TEIBE VIII. ARUNDINEM. 



Spikelets all fertile, in a branched or spicate panicle, sometimes with 1 $ flower, 

 with or without the pedicellate rudiment of an upper flower; sometimes many- 

 flowered. Glumes equalling or longer than the flowers. Glmnelles usually sur- 

 rounded at the base with long hairs, membranous-herbaceous, as are the glumes ; 

 the lower awned or muticous, and facing the lower glume. Stamens 3, or rarely 2. 

 Stigmas usually sessile or sub-sessile, protruding from the sides or towards the base 

 of the spikelet. Caryopsis with a punctiform or linear hilary spot. 



PRINCIPAL GENERA. 



* Calnrangrostis. * Arundo. Phragmites. Deyeuxia. 



Ampelodc'sraos. * Gynerium. * Animophila. 



TRIBE IX. CHLORIDES. 



Spikelets all fertile, in unilateral digitate or panicled spikes, sessile on the inner 

 face of a continuous rachis, laterally compressed ; sometimes with several flowers, 

 the 1-3 lowest , the upper rudimentary ; sometimes with 1 $ flower, with or with- 

 out the rudiment of a second flower. Glumes more or less unequal, usually shorter 

 than the flowers. Glumelles membranous, the lower answering to the lower glume. 

 Stamens 3. Stigmas usually elongated, erect, protruding towards the top or above 

 the middle of the flower. Caryopsis with a punctiform hilary spot. 



PRINCIPAL GENERA. 



Cynodon. Cliloris. Leptocliloa. 



Dactvloteniiim. * Klensine. Spartiim. 



TRIBE X. FAPPOPHOREM. 



Spikelets all fertile, in cylindric-globose spikes, or in a panicle ; more or less 

 laterally compressed, with 2 or several flowers, the lower 1-5 5, the upper usually 

 imperfect. Glumes more or less unequal. Glumelles membranous or sub-coriaceous, 

 the lower with 9-13 nerves, often prolonged into bristles or teeth ; lower glurnelle 

 of the base of the spikelet answering to the lower glume. Stamens 3, rarely 2. 

 Stigmas erect, protruding at the top of the flower. Caryopsis with a punctiform 



or oblong hilarv spot. 



PRINCIPAL GENERA. 



Ecliinaria. Sesleria. 



TRIBE XI. AVENE&. 



Spikelets all fertile, pedicelled or sub-sessile, in a branched spreading or spicate 

 panicle, more rarely in a raceme or spike, 2-many-flowered, the upper or lower 

 flower often # or rudimentary. Glumes large, sub-equal or unequal, usually almost 



