firamine(S.'\ 
CHINA. 
239 
habeo. Cl, R. Brown, Saccharum paniceum, Lam. citans, valvulam flosculi hermaphroditi superiorem de- 
ficientem notat. An itaque plures hie species, nescio an plura fors genera, latent ? 
[In Prof. Nees V. Esenbeck’s MS. to Dr. Lindley, and more lately in a letter to ourselves, we find that he now 
inclines to consider the species from Dr. Wight, also from Ceylon and China, as a distinct one, and he thus 
characterises it : — “ P. refractum; gluma inferiori breviori truncata, superior! apicem versus hirta, seta flosculi 
fertilis basi refracta. — Differt e P. polystachyo (scil. plantse, cui nomen hoc reliquimus) spiculis duplo fere 
minoribus, vix lineam longis, cum isti 1 J lineam sint long®, opacis; gluma inferiori breviori et ratione longi- 
tudinis latiori, fere recta truncata ; superior! apicem versus hirsuta, seta flosculi ab origine fere arcu parvo 
refracta qu® isti leniter retrovergens subtortuosaque. Reliqua utrisque conveniunt. Flosculus inferior uni- 
valvis, superior bivalvis, valvis ciliatis. Folia angusta valde scabra, magis tamen in P. refracto, ad os vagin® 
longe barbata. — P. polystachi diagnosis h®c est : P. glumis mqualibus Imvibus apice barbatis, seta recurva 
flexuosa.” — The direction of the seta, however, is perhaps inconstant : it is erect in Roxburgh’s figure (in E. I. 
C. mus. tab. 875.) of his Andropogon monandrus, and in some of Dr. Wight’s younger specimens; but Rox- 
burgh’s plant is certainly P. refractum, for although in his description he states the glumes to be equal, he 
represents them unequal, and the lower one of the sessile spikelet truncated in his drawing, and besides, the 
lower floret appears to have been so minute as to have escaped his notice. In the specimen of P. poly- 
stachyum, N. ab E., which we possess, we are uncertain from what part of India, the lower floret of the 
sessile spikelet is conspicuously 2-valved, as in Beauvois’ figure, and contains a single apparently imperfect 
stamen, which falls out as soon as the florets expand, and is therefore only to be observed in an early 
stage : the bisexual floret contains two fertile stamens. The pedicelled spikelet has the lower floret, so far 
as we have observed, always neuter, and with one conspicuous valvelet, and the upper one with or without 
one unfertile stamen. When Mr. Brown speaks of Saccharum paniceum, Lam., not having an upper valve- 
let to the upper floret, he probably merely alluded to Lamarck’s figure, where it is erroneously represented so.] 
7. Homoeatherhm. N. ab E, 
SpiculcB in axi articulata gemin® heterogam®; altera sessilis hemigama, altera pedicellata neutra. Hemi- 
GAM.E: glumcB du®, membranaceo-chartace®; inferior angustior minorque canaliculata, 2-4-nervis; nervis 
lateralibus in dentes setasque excurrentibus; superior cymbiformis compressa ad apicem bifidum e nervo 
medio longe setigera. Flosculi duo membranacei tenues : inferior univalvis, valvula lanceolata ciliata 
m Utica aut in setulam subtilem extenuata: superior bivalvis; valvula inferior lanceolato-cymbiformis inter 
lacinias apicis latiusculas eiliatas setam emittens validam, inferius tortam in medio reflexam; valvula superior 
minor, linearis, binervis, bidentata, dorso concava lateribus inflexis. Lodiculce subcarnos®, colorat® (flav®), 
truncato-bidentat®. Stamen (in unica specie) unum. {Anther ce fulv®.) Styli discreti; stigmata aspergil- 
liformia. Neutm: gluma du®; inferior subherbacea, plana, multinervis, ex apice bidentato bisetove longhis 
setigera; superior angustior, submembranacea, margine inflexa, ex apice ciliato brevi-dentato setam parvam 
emittens. Flosculi inferioris neutriusque valvula plus minus evoluta. Flosc. superior omnino deest. — In- 
florescentia : spic® geminata, in pedunculis vagina microphylla involutis subfasciculatce. Racheos articuli 
cuneiformes, apice oblique truncati et excavati, oblique trigoni, latere exteriore latiori convexo. Pedicelli 
spicul® imperfect® articulis racheos similes, hinc convexi, inde concavi. Habitus omnino Andropogonis e 
sections Cymbopogonum. 
Est genus intermedium inter Pogonatheram P. de B. et Andropogones, illis tamen revera magis propin- 
quum. Differt a Pogonathero genere spiculis singuli paris non modo heterogamis, sed etiam forma diversis, 
gluma utraque spicul® pedicellat® setigera, inferiori quoque spicul® sessilis s®pe biseta; turn vero lodiculis 
distinctis carnosisve. 
1. H. Chinense. N. ah E. in Herb. Lindl. 
Hab. In China circum Macao et in insulis adjacentibus a Julio in Septembrem 1829, legit G. H. 
Vachell, n. 52. 
