3 
laterally much compressed spikelets, its similarly compressed fertile 
floret and its thin valve and valvule. e awns are also less developed 
respects. 
In the Kew collections 5 species referable to Poecilostachys are present. 
k 
Their characters are set out in the following key :-— 
Spiculae omnes vel saltem nonnullae aristatae, glumae (saltem 
superior) spiculam mediam plane superantes. 
Laminae lanceolatae vel lineari-lanceolatae, 13-22 mm. latae ; 
culmi robustiores. ee ee ag 
Folia uti tota planta glaberrima ; laminae nervi ultimi ordinis 
fere 0-5 mm. inter se distantes ; ligula firma, 2-3 mm. longa cum 
vaginae auriculis aequilongis nervoso-striatis fusa. 
1. P. Baronis, Stapf (n. sp.). 
2. P. Hildebrandtii, Hack. 
Foliorum laminae lineari-lanceolatae, ad 15 cm. longae, 
circiter 10-ies longiores quam latae; folia ubique molliter 
pilosa, vaginarum pilis ad 8 mm. ongis ; ligula brevissima, 
chartacea, a argines vaginae exauriculatae decurrens , 
glumae et valva inferior leviter nervoso-striatae ; gluma 
inferior interdum spiculam mediam haud superans vel ea 
paullo brevior, superior semper plane longior. 
3. P. mollis, Stapf (n. sp.). 
Laminae lineares vel lanceolato-lineares, ad 6 mm. latae ; culmi 
debiles. 
4. P. bromoides, Stapf (n. comb.). 
Spiculae omnes exaristatae ; glumae ad spiculam mediam attingentes 
vel paullo breviores ; folia, praeter vaginarum margines densissime 
