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culmo adscendente ramosissimo, vaginis foliisque lanceolato-linearibus glabris. Trin. MSS.
N ab E . Agrost. Bras. 2. p . 199. Kunth, E n . 1. p . lO O .-P . ramosum. Kom. in Herb. Banks.
(fide h erb. TVm.)—P . virgatum. Boxb. (fide ejusd.)
H ab. Circa Macao urbem ; Millett.
Est species distinctissima, habitu e capillarium et virgatorum indole mixto. Culmus 1-2 pedcs altus.
Nodi glabri. Vaginoe glabræ, etiam margine, ore solo barbato, cingalo luteo infra laminam, ut in P . miliari,
notatæ. Foba A: pollices longa, glabra, margine scabriuscula. Paniculæ ram" graciles, spatio quodam suprà
basm ramificati, compressi. Ramuli adprcssi, demum patuli. Pedicelli uniflori, spicula lineam longa duplo
sæpe longiores, uti ramuli flexuosi, primum pallidi, ætate purpurascentes. Quod ad spiculas, si demis mag-
nitudinem, accedit P . miliari et colorato, sed inflorescentia longe differt', P. capillare magis rcferens.
[Roxburgh has no where described a P. virgaium, nor attached that name to any of his drawings ; we
presume, therefore, that he must have merely given it incidentally to some of Koenig’s specimens in the
Banksian Herbarium.]
6. V. glaucum; racemo spicato cylindrico, involucellis subbifloris multisetis spiculis duplo
longioribus rigidis flavis antrorsum scabris, flosculo masculo bivalvi hermaphrodito undula-
to-rugoso, culmo adscendente sub inflorescentia anguioso, foliis culmo brevioribus lineari-
lanceolatis basi barbatis. L in n— Willd. E n . Hort. Ber. 2. p . 1030. N. ab E . Agrost. Bras.
2. p . 240. (cum syn.) Trin. Ic. Gram. t. 195. Roxb. FL Ind. 1. p . 2S4. {ed. Wall.) 1. p.
287.—Setaria glauca. Roem. et Sch. Syst. 2. p . 490.—/3. spiculis demum purpurascentibus
e t purpureo-fuscis.— P. purpurascens. Humb. et Kunth, Nov. Gen. et Sp. 1. p. 110. Kunth
E n . 1. p . 151.
H a b . 12. circa Macao urbem ; G. II. Vachell, n. 4 5 . b.
Involucellis brevioribus rigidioribus spiculisque majoribus facile distinguitur a P. penicillato.
7. P. penicillatum ; racemo spicato cylindrico elongato, ramulis bifloris, involucellis unifloris
multi (6-)-setis spicula triplo quadruplove longioribus gracilibus antrorsum scabris,
flosculo hermaphrodito mucrone incurvo transversim undulato-rugoso, neutro masculove
bivalvi, culmo erecto glabro sub racemo angulato-sulcato, foliis lineari-elongatis supra
glaucis scabris basi plerumque barbatis. Herb. W illd .~ N . ab E . Agrost. B ras. 2. p . 242.—
P. glaucum. Kunth, E n . 1. p. 149. {nec Auct. Europ.) Humb. et Kunth, Nov. Gen. et Sp.
l . p . 109.
H ab, Circa Macao urbcm ; Millett. Vachell, n. 3 7 . b.
8. P . Italicum; racemo terminali erecto vel nutante decomposito lobato-spiciformi elongato,
rachi hirsuta, racemis partialibus confertissimis ovatis oblongisve densifloris, involucellis
sub singula spicula unisetis spicula triplo e t u ltra longioribus flexuosis antrorsum (i. e. retrorsum
tangenti) scabns, flosculo inferiori neutro valvula superiori minuta, hermaphrodito
subtiliter punctulato, culmo erecto ramoso vaginisque lævibus, foliis late linearibus supra
scaberrimis ligulæ loco stricte barbatis. L in n . Sp. PL p . 83. Roxh. FL Ind. 1. p . 302. {ed.
Wall.) l . p . 305. Trin. Ic. Gram. t. 1 9 8 .-S e ta ria Italica. Kunth, En . l .p , 1 5 3 .-P e n n i-
setum Itahcum. B r . Prod. l .p . 195.
H ab, Circa Macao urbem e t in insulis vicinis ; Millett. G. H. Vachell.
9. P. mrxde. L in n .— Smith in Engl. Bot. t. 875. Trin. Ic. Gram. t. 203.— Pennisetum
viride. Brown. Prod. l . p . 195.— Setaria viridis. P . de Beauv.
H ab. Ad Macao et in insulis vicinis ; G. II. Vachell, n. 37. a.
In forma Chinensi, fo lia pilosa, vagince autem glabrie, flosculus haud Imviusculus sed granulatim unda-
timque exasperatus.
[Of this the specific character is unfortunately wanting in Nees von Esenbcck’s manuscript, and we have not
seen Mr. Vachell’s specimen: if, however, a species which we have received from Millett, also from Canton,
be the same, it constitutes a form intermediate between the English P . viride and small states of P . Ita h cum;
the raceme is slightly lobed, and all the ramuli as well as the involucral bristles are very patent. If
we be correct in referring these specimens, P. viride can only be distinguished from P . Italicum thus
Racemo arcto simpliciter vel sublobato-spiciformi breviusculo, racemis partialibus subsessilibus paucifloris,
involucellis rectiusculis, foliis pilosis vel glabris.—All the remainder of the character of P . Italicum applies
to P . viride; in both, the fertile floret is more or less conspicuously but minutely and transversely rugulose.]
d. E chinochloa.
10. P. hispidulum; [spica composita erecta, partialibus subverticillatis subadpressis basi
et ad insertiones spicularum barbatis omnibus simplicibus, rachi 3-4-angulata striata, spi-
ciilis quadrifariis ovatis turgidis hispidis pallidis, gluma inferiori orbiculari-ovata mucronata
trinervi spicula triplo breviori basi amplectente cuculiata, superiori ovata mucronato-acu-
minata 5-nervi, flosculi neutrius valvula inferiori longe setigera, caryopsi lævi ovata gibba
subrostellata, culmo suberecto vaginis foliisque glabris, his supra margineque scabris, ligula
nulla. Lam. Enc. Meth. 4. p . 744. Retz, Ohs. 5. p . 18. N . ah E . A g ro s t Bras. p . 256.
—Digitarla hispidula. WiUd. E n . H o r t J3er. 1. p . 91.—Echinochloa hispidula. S ch u lt—
Orthopogon lletzii. Spr. S y s t l . p . 307.
H ab . Circa Macao et in insulis vicinis ; Millett. Vachell, n. 43.
We have drawn up the above character from Chinese specimens, among which we have two extreme
forms with every gradation between them j one has the partial spikes short, close pressed to the rachis, and
the bristle of the neuter floret is seldom longer than the spikelet ; the other is much more luxuriant, having
more numerous and slightly spreading partial spikes, and the bristle, although short in some spikelets, is
usually 3-8 times longer than the florets : this last state approaches so closely to P . crus-Pavoiiis, N. ab E.
(Agrost. Bras. p. 259.) that we cannot detect any difference, except in the latter having the lower partial
spikes compound, and perhaps the lower glume not cuculiate. Between P . hispidulum and P . cæsium, notwithstanding
the differences pointed out by Nees von Esenbeck below, we find still greater difficulty of draw-
ino- a line : in Prof. Henslow’s specimens of the latter, determined by Nees von Esenbeck himself, the
rachis is certainly striated, the lower glume is cuculiate, and the upper as distinctly 5-nervcd as that of P . hispidulum,
while the glaucous hue, as well as the colour and size of the spikelets, is too dependant on soil and
situation to attbrd any but secondary characters ; we have thus left only the convex back of the rachis and
tho decidedly alternate partial spikes to characterise it, and that these arc constant and not the effect of
fortuitous circumstances we have reason to doubt.]
11. P. cæsium; spica composita crecta, partialibus alternis subadpressis basi e t ad inser-
tiones spicularum barbatis, rachi inferne semitereti compressa superne triquetra dorso
convexo, spiculis quadrifariis ellipticis hispidulis coloratis, glumis ovatis trinervibus, inferiori
spicula triplo breviore acuta, superiori acuminata, flosculi neutrius bivalvis valvula inferiori