setisque rigidis patentibus conspersæ. Ligula brevissima, truncata, denticulata, fusca. Folia 2-2^ poll,
longa, vix lineam lata, plana, acuminata, ad modiim vaginarum hispida. Racemus compositus, 4-6-[in forma
Chinensi 8-10-]-pollicaris subnutans, ramis 1^2 [in Chineusi 8-4] poli, longis alternis, erectis [in Chinensi
patentibus], ad basin usque fasciculatim divisis. Rachis undata, striata, glabra. Spiculoe inferiorcs geminæ,
superiores alternæ, erectæ, lanceolatæ, glabræ aut apicem versus in costis setis raris conspersæ, omnes pedicellate.
Pedicelli graciles, scabri, geminatorum alter alter lineas longus. Glumæ glabræ, c basi
oblongo-lanceolata caudato-acuminatæ, apice convoluto, lutescentes ; inferior lin. longa, 5-ncrvis ; superior
2 | lin. longa, 7-nervis. Flosculus inferior magnitudine glumæ inferioris, abortu neuter, mem-
branaceo-chartaceus, bivalvis ; valvulæ æquales, lanceolatæ, muticæ, læves. albæ; inferior dorso plana, obtusa,
apice autem convoluta proptereaque ad speciem attenuata 5-nervis, nervis obsoletis; superior plana, marginibus
inflexis. Genitalia, præsertim ovarium, incompleta cemuntur. Flosculus superior hermaphroditus,
è hn. longus, bivalvis, chartaceus; valvula inferior lanceolata, attenuata, apicem versus muriculata, apice
biseta et inter setas proferens aristam geniculatam valde tortilem, 4 lin. longam, basi purpuream apice pal-
lidam; setæ albæ; valvula superior minor, lanceolata, obtusa. Lodiculæ magnæ generis. Stamina tria,
antheris violaceis. Caryopsis lutea. Tempore maturescentis fructus durescunt valvulæ et colore saturate
fusco tinguntur.
T rib. I I I . SA C C H A R IN EÆ .
SuBTRiB. L S O R G H EÆ .
5 . C h r y so po g o n . Host. Trin.— R a p h is , Lour, ( n o n Linn. fil.)
I . C. aciculatus ; culmo stricto simplici, foliis vaginis brevioribus lanceolatis obtusiusculis
margine scaberrimis, seta spicula sua subtriplo longiore, gluma superiori breviseta, spiculis
coloratis, paniculæ ramis strictis tristachyis.— TVîh. in Act. Petrop. 7. p . 316.—Raphis tri-
viaÜs. Lour. Fl. Cock. 2. p . 676. T rin . ic. Gram. t. 8, 9.—Andropogon acicularis. Willd.
Sp. 4. p . 906. Kunth, En . 1. p . S05. Hook, et Arn. supr. p . 72, et 102.—A. aculeatus. Roxb.
Fl. Ind. 1. p . 2 6 2 ; {ed Wall.) I. p . 266.— Rumph. Herb. Amb. 6. t. h.— Rheed. Hort.
Mal. 12. t. 43.
H ab . Circa Macao et in insulis adjacentibus; Millett. G. H. Vachell, n. 4 9 .
Spiculæ 2 lin. longæ. Glumæ pectinalo-hispidæ, lanceolatæ, æquales. Valvula flosculi fertilis inferior
oblongo-lanceolata, villoso-ciliata. Barba ad basin spicularum brevis.
S u E T R iB . I I . A N D R O PO G O N EÆ .
6. P o g o n a t h e e om . P . de .Seawv.—Homoplitis. Trin.
1. Y.polystachyum. R . et Sch. S y s t Veg. 2. p . 497. N. ab E . in Herb. Wight. Wight
Cat. n. 1679.—P . saccharoideum. P . de Beauv. Agr. t. 1 0 . / 7.—P . crinitura. Trin. Fund,
p . 166. Kunth, E n . p . 478.—Saccharum paniceum. L am . Enc. Meth. 1. p . 549 ; III. t. 40.
/ 3.?— Perotis polystachya. WiUd. Sp. 1. p. 324.—A ndropogon monandrus. Roxb. Fl. Ind.
p. 260 ; {ed. Wall.) 1. p . 264. (flde Wight et Arn.)
H ab. Circa Macao; Vachell, n. 36.
Quod ad figuram in universum nostra exempla dcscriptioni Willdenowianæ et iconi Paüsotianæ respondent.
Sed flosculus inferior in speciminibus Wightianis [atque Chincnsibus] vel deest omnino vel adest
neuter univalvis, valvula exigua lineari, gluma inferiori multo minore. Reliqua ut apud Belvisium; hie
autem flosculum neutrum distincte bivalvem majusculum cxbibet, qualera et in speciminibus Roylcanis coram
habeo. Cl. R. Brown, Saccharum paniceum, Lam. citans, valvulam flosculi hermaphroditi superiorem de-
ficicntem notât. 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 inferior! breviori truncata, superiori apiccm versus hirta, seta flosculi
fertilis basi refracta.—Differt e P . polystackxjo (scil. plantæ, cui nomen hoc reliquimus) spiculis duplo fere
minoribus, vix lineam longis, cum isti 1J lineam sint longæ, opacis; gluma inferiori breviori et ratione longi-
tudinis latiori, fere recta truncata; superiori apicem versus hirsuta, seta flosculi ab origine fere arcu parvo
refracta quæ isti leniter retrovergens subtortuosaque. Reliqua utrisque conveniunt. Flosculus inferior univalvis,
superior bivalvis, valvis ciliatis. Folia angusta valde scabra, magis tamen in P . refracto, ad os vagmæ
longe ba rb a ta .~ P . polystachi diagnosis hæc est : P . glumis æqualibus lævibus 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 Roxburgh’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 contmns 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. Tho 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 valvelet
to the upper floret, he probably merely alluded to Lamarck’s figure, where it is erroneously represented so.]
7. H om o ea th e eum . N. ab E.
Spiculoe in axi articulata geminæ hcterogamæ; altera sessilis hemigama, altera pedicellata neutra. H em i-
GAMÆ: glumæ duæ, membranaceo-chartaccæ; 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
mutica aut in setulam subtilem extenuata: superior bivalvis; valvula inferior lanceolato-cymbiformis inter
lacinias apicis latiusculas ciliatas setam emittens validam, inferius tortam iu medio reflexam; valvula superior
minor, linearis, binervis, bidentata, dorso concava lateribus inflexis. Lodiculæ subcarnosæ, coloratæ (flavæ),
truncato-bidentatæ. Stamen (in unica specie) unum. {Antheræ fulvæ.) Stigli discreti; stigmata aspergil-
liformia. N e u t r i : glumæ duæ; inferior subherbacea, plana, multinervis, ex apice bidentato bisetove longius
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-
floresccntia: spicæ geminatæ, inpedunculis vagina microphylla involutis subfasciculatoe. Racheos articuli
cuneiformes, apice oblique truncati et ezcavati, oblique trigoni, latere exteriore latiori convexo. Pedicelli
spiculæ imperfecto articulis racheos similes, hinc convexi, inde concavi. Habitus omnino Andropogonis e
sectione Cyrabopogonum.
Est genus intermedium inter Pogonatheram P. de B. et Andropogones, illis tamcn revera magis propinquum.
Differt a Pogonathero genere spiculis singuli paris non modo hcterogamis, sed etiam forma diversis,
gluma utraque spiculæ pedicellate setigera, inferiori quoque spiculæ sessilis sæpe biseta; turn vero lodiculis
distinctis carnosisve.
I. H. Chinense. N. ab E . in Herb. Lindl.
H ab. In China circum Macao ct in insulis adjacentibus a Julio in Septembrem 1829, legit G. H.
Vachell, n. 52.