248 CHINA. [Graminea. 



cum seta majori 9 lineas longis, minus divaricatis, turn glumis magis adhuc lenissimeque in setam acutatis pro 

 longitudine angustioribus. Flosculus glumis triplo brevior ; valvula inferior membranacea, satis firma, 

 trinervis, ovato-lanceolata, in acumen mucroniforme producta ; superior brevior, linearis, apice bidentata. 

 Stamina tria, antheris luteis. Stigmata purpurea. Glumm seabrse, cum setis suis pallida?. Folia rigidula, 

 densa, glauca, margine basin versus calloso-denticulata ciliataque. — Species dua; alise sic distinguendae : — P. 

 hordeiformis ; spiculis fructiferis florentibus erectis subsessilibus, valvulis flosculi sequalibus — P. patula ; 

 spiculis fructiferis patentissimis pedicellatis, valvulis flosculi insequalibus. 



[With P. hordeiformis we are unacquainted. Between P. latifolia (for we are still inclined to retain 

 that name instead of patula) and P. longiflora, there are some obvious differences in the foliage : in both 

 the leaves are of the same general shape; but in P. latifolia they are waved, and have a cartilaginous 

 discoloured (in our specimens) margin, which is armed with rigid, close, sometimes bristle-bearing teeth, from 

 the base to near the apex : in P. longiflora, they are flat or involute towards the apex, decidedly glaucous, 

 and the margin toothed only near the base. In P. latifolia the sheaths are strongly striated ; in P. longi- 

 flora, scarcely at all. In P. latifolia the leaves are scattered at equal distances on the lower half of the 

 culm ; in our specimens of P. longiflora they are crowded for about one-fourth from the root ; but as in 

 both the two upper leaves are remote, we are disposed to regard the approximation of the lower ones as the 

 effect of a greater or less development of the whole plant.] 



Trib. VI. AGROSTIDEiE. 

 20. VILFA. Adans. — Spohobolus. R. Br. 



1. V. elongata, N. ab E. — Var. panicula sesquipedali strictissima valde attenuata, 

 spiculis albicantibus. 



Hab. Ad Macao et in insulis vicinis ; Millett ; G. H. Vachell, n. 53. 



[Athough our friend has not sent the specific character, we presume he here means V. elongata, Trin. 

 unifl. p. 154, or Sporobolus elongatus, Brown: but our specimens do not altogether agree with Brown's 

 observations, in as far as he states the branches of the panicle to be alternate and the lower ones distant ; 

 whereas here they are more or less fascicled or verticillate, and the lower ones are not more remote than in 

 V. tenacissima .- the glumes are ovate, the upper one between twice and thrice, and the lower nearly four 

 times shorter than the floret. The leaves are convolute. On the whole, therefore, we do not see why our 

 plant ought not to be rather referred to V. tenacissima, Humb. and Kunth ; perhaps, however, as Trinius 

 says, V. elongata is too closely allied to it. In both, the branches of the panicle are floriferous from their 

 very base or nearly so. 



Trib. VII. ARUNDINE^. 



21. ARUNDO. Linn. N. ab E. 



1. [A. Henslowiana ; culmo tenui foliisque convoluto-subulatis glabris, vaginis glabris 

 ore barbatis, panicula subcontracta oblonga ramis fasciculatis compositis gracilibus, spiculis 

 5-7-floris, glumis spicula duplo brevioribus subulata acutatis, flosculis patulis, valvula 

 inferiori dorso glabra versus marginem longe lanata, seta recurvo-patula flosculo fere 

 duplo breviore. 



Hab. In Insula " Danorum" dicta, infra Cantonem ; G. H. Vachell, in Herb. Henslow, n. " U." 

 Panicula (in exemplo unico tantum nobis obvio) tripollicaris. Valvula floseulorum inferior apice bifida, 

 inter lobos subulatos breves setam proferens. 



