æquilongis pubescentibus 3-5-nervibus, flosculo neutro fusco subtilissime punctato, culmo
erecto vaginisque glabris, folüs angustis supra velutino-scabris.— P . filiforme, Chinense.
Kunth. E n . l .p . 46.
H a b . Ad Macao urbem ; G. H. Vachell, “ X.” (ex parte.)
Differt a P. filiformi rhachi latiori recta, spiculis paullo majoribus imbricatis aut densius saltem confertis ;
a P. nematode culmo erecto gracili, vaginis foliisque protractis.
[Kunth’s Chinese locality is taken from Roxburgh ; but Roxburgh’s Panicum filiforme is obviously a true
Panicum, allied to his P . lineare (P . pseudodurva, N. ab E.) and P . commutatum, N. ab E., but differing
by the upper glume being only half the length of the neuter floret, and both three-nerved and slightly villous
on the margin.]
2. HELOPUS. Trin.
Eriochlooe genus Humb. et Kunth, secundum novissimum Kunthii librum idem ac Helopus, Trin. At
vero characteres in Nov. PI. Gen. et Sp. exhibiti, verara generis naturam non exprimunt. Itaqnc Trinianum
nomeii retinendum, quippo quo primum genus vero innotuerit.
1. anniilatus; racemo decomposito laxo, rhachi trique tra glabra gracili, pedunculi.s
bifloris, spiculis ovato-lanceolatis sericeo-pilosis, culmo ramoso glabro.—N . ab E . Agrost.
B ra s .p .1 6 .— Eriochloa annulata. Kunth. En . 1 ./J .7 3 .—Paspalusannulatus. Flügge.— Trin.
Ic. Gr. 12. t. 133.— Milium ramosum. Roxh. Fl. Ind. l . p . 15; {ed. Walt.) l .p . 317.
H a b . Circa urbem Macao ; G. H. Vachell, n. 57. (ex parte*;)
Differt a reliquis sui generis gracilitate racemi, pedunculis longioribus bifloris, defectu vel minimi vestigii
glumæ inferioris.
3. PANICUM. Linn.
a. D i g it a h ia .
1. P . commutatum; racemis 3-5 subdigitatis erectis, rhachi scabra, spiculis subimbricatis
geminatis, gluma inferiori minutissima subrotunda truncatave enervi, superiori lanceolata
flosculo paullo breviori e t duplo fere angustiori trinervi, quadrifariam dense lanata, valvula
n eu tra 5-nervi interstitiis nei-vorum lateralium dense villosis, culmo basi repente foliisque
glabris, vaginis o re barbatis.—N . ab E . in Linnæa, 7. p . 274.— P. ciliare. Roxb. Fl. Ind, I.
p . 2 9 0 ; {ed. Wall.) I. p . 293.—P . filiforme. Thunb.—Digitaria commutata. Schult, Mant.
p . 262.
H a b . Circa Macao urbem ; Millett. Vachell, n. 34.
Species singulari integumento spicularum et foliis vaginisque extra oras glabris, ut et proporlione glurooe
superioris, turn a P. ciliari, tum etiam a P. marginato. Link, bene distincta.
b. P a s f a l id e a .
2. P. colonum; spica composita, partialibus pluribus (5-9-nis) alternis discretis approximatis
erectis, rhachi communi glabris, partialibus scabris, spiculis quadrifariis imbricatis
ovatis turgidulis, glumis mucronulatis hispido-scabris, inferiori triplo breviori, flosculo
neutro bivalvi valvula inferiori mucronata, hermaphrodite lævi mucronato, culmo basi ramoso
nodis foliisque glabris, his margine scabris.—a. Culmo plerumque humiliori, foliis
lineai'i-lanceolatis brevioribus patulis, spicis partialibus sessilibus basi imberbibus, spiculis
paullo majoribus. L i m . - N . ab E . Agrost. Bras. 2. p . 119. Trin. Io. Gram. 14. t. 160.—
fi. Culmo plerumque altieri, foliis linearibus longioribus magis ercctis strictiusculis, spicis
partialibus (pluribus) sæpe breve pedunculatis (infimis saltem) basique setosis, spiculis paullo
minoribus.— P. pseudocolonum. Both, Nov. Fl. Sp. p . 47. N . ab E . Agrost. Bras. 2. p.
1 2 0 . - P . colonum. Boxb. Fl. Ind. 1. p . 2 9 6 ; (ed. Wall.) 1. p . 299.-O p lism e n u s pseudo-
colonus. Kunth, En . l . p . 142.
H a b . fi. Circa Macao urbem; Millett. Vachell, n. 44.
Formæ » et /Î in numeris lusibus, (quod olim jam suspicatus cram, nunc autcm clarissimis documentis coin-
probatum video) adeo misceiitur, ut vix varietates habendas esse eenseam, tantum abest, ut specie distinguen-
das.—Variant rachidibus propriis spiculisque valde hispidis.
[Some of our Chinese specimens are only 3-4 inches high and very slender, others about two feet.]
c. P a n ic u l ig e b a .
3. P. ischæmoides; panicula racemosa angusta, ramis alternis contractis, spiculis ovato-
oblongis acutis glabris polygamis, gluma inferiori rotundata amplectente, superiori flos-
culique masculi inferiori valvula æqualibus 7-9-nerviis hermaphrodite oblongo obtuso lævi
masculo breviori, culmo inferne dense vaginato, vaginis ore margineque molliter ciliatis,
foliis distichis patentibus supra pubentibus. R e tz, Obs. 4. p. 17. Willd. Sp. PL l . p . 348.
Roem. et Sch. Syst. Veg. 2. p . 433. Kunth, E n . p . 125.— P. convolutum. P . de Beauv.— N.
ab E . Agrost. Bras. 2. p . 173. Presl, Rei. Hænk. 2. p . 304. Kunth, E n . l . p . 130.
H a b . Circa Macao urbem ; Millett. Vachell, n. 57. (ex parte.)
Spiculis in racemum decompositum coarctatum dispositis pallidis acutis, culmoque magis mmusve ngido
inferne vaginato, foliis, saltem ubi breviora sunt, rigidis distiche patentibus et siccando convolutis, supra
semper basin versus pilosis, subtus modo glabris modo circa basin etiam pubescentibus, vaginarumque fimbria
densa mollique a reliquis facile distinguitur.
4. P.miliaceum; panicula subnutante pedunculisque laxis, spiculis ovatis acutatis hemi-
ologamis, gluma utraque mucronata, inferiore subduplo breviori 7-nervi, superiori flos-
culique neutrius inferiori valvula 1 1-nerviis nervis validis, hermophrodito ovali lævi, culmo
ramoso, vaginis foliisque lato-linearibus tuberculatis et villosis, radice annua. L in n . Hort.
Cliff, p . 27. N . ab E . Agrost. Bras. 2. p. 200. (cum syn.) Roxb. Fl. Ind. I. p . 3 1 0 ; (erf.
Wall.) 1. p. 312. Kunth, En . 1. p. 104.
Valvula flosculi neutrius superior brevissima.
[The few Chinese specimens we have seen, sent by Mr. Millett from Canton, are smaller and more slender
than those wc possess from the Peninsula of India, and the leaves are shorter and narrotver ; but we ave
no reason to suppose them specifically distinct]
5. P. psilopodium; panicula capillari, ramis inferioribus basi præsertim strictis, ramulis
subfasciculatis pedicellisque tenuissimis flexuosis scabris, axillisnudis, s p i c u l i s oblongis acutis
glabris purpurascentibus lutescentibusve, gluma inferiori duplo breviori obtusa tnnervi, superiori
7-nervi, flosculi neutrius bivalvis valvula inferiori 7-9-nervi, hermaphrodite oblongo lævi
2 G