2 
angustata lanceolatae, acute acuminatae, ad 7 cm. longae, 10-14 mm. 
latae, rigidulae, e emarcidae rufescentes, subglabrae vel minores parce 
et —— pubescentes, nervis numerosis approximatis ultimi ordinis 
0- mm. inter se distantibus. Paniculae terminales vel nonnullae 
e foliorum superiorum axillis additae, angustae, quae culmos terminant 
longe pedunculatae et ad 15 cm. longae, caeterae multo breviores, 
erectae, rhachi gracili ews laevi inferne et ad nodos rere 
pubescente ; ; tami solitarii, 1-4 cm. distantes, subsecundi, ad 5 
longi, graciles, a basi apioditer, angulati, laeves. Spiculae ete 
terminales eminatae, subsecundae, altera  subsessilis, altera 
pedicellata, pedicello ad 3 mm. — apice obsolete cupulato, poiec 
lanceolatae, a latere compressae, 6-7 mm. longae, virides. Gluma 
a latere visae anguste lanceolatae, carinatae, nervoso-striatae, 7-nerves, 
glabrae vel parce pilosae, inferior quam spicula triente brevior, acuta 
vel saepe (pedicellata) in aristam gracilem rectam ad 8 mm. longam 
producta, superior paullo longior, acuta, exaristata. Valva anthoeci 
inferioris glumis simillima, spiculam aequans, omnino vacua. Valva 
anthoecii superioris anguste lanceolata, acuta, 5-5-6 mm. longa, eclias 
laevis, tenuissime 5-nervis, cum valvula nee breviore. Anther 
4 mm. longae 
Mapacascar: Imerina ; Andrangoloaka, in primeval forest, Hilde- 
brandt, 3759 (in part in the Kew specimen). 
The genus Poecilostachys was considered by its author to be allied 
to Lophatherum, and one of Hackel’s species, viz. P. geminata, was in 
fact described “originally as Lophatherum geminatum. There is, no 
doubt, a considerable superficial resemblance between the two genera ; 
but the former has panicoid and the latter typically poaoid spikelets, 
as was pointed out by Hackel himself. The affinity of Poecilostachys 
lies clearly with Oplismenus, Beauv., from which it differs in its slender, 
