! il
longe setigei-a, caryopsi ovali lævi subrostellata, culmo procumbente ramoso, vaginis foliisque
linearibus glaucis his margine scabris, ligula nulla.
Hab. Ad Macao urbem; G. H. Vachell, n. 45.
P. hispidulo affine, a quo differt : glaucedine, culmo gracili procumbente adscendente, spiculis minoribus
purpureis, rachi dorso convexa læviuscula nec striata, subtus carinata, nervis glumarum paucioribus, &c.
2. ISACHNE. R . Brown.
1. I. muricata; panicula ovali rigidula flexuosa, ramis prope a basi divisis, spiculis sub-
globosis quoad compositionem monoicis, inferiori flosculo masculo lævi, superiori femineo
hirto, glumis obovatis tuberculato-asperis, culmo repente, foliis subcordato-oblongis supra
asperis dense striatis, ligula setosa. N . ab E . in Wight, Cat. n. 1658.—I. dispar. Trin. Ic.
G r a m .t .% Q .K u n th ,E n .\ ,p .\Z 6 .—I. pulchella. R o th ?—Panicum muricatum. Re tz, Ohs.
4. p . 18. Willd. Sp. PI. 1. p . 348. Kunth, E n . 1. p . 181. N . ab E . Agrost. Bras. p . 207.
—P . violaceum. Rottl.— P . fuscum. Herb. Smith, (non Swartz.)
Hab. Apud Cantonem ; Millett.
Inter reliquas Jsachnes statura, foliis aspeirimis, panicula parva 1-1^ pollicem longa, plerumque fusco-pur-
purea, glumis muricatis, flosculis diclinibus facile distinguitur.
[Our Chinese specimens have tbe glumes much less conspicuously muricated thau in those from Dr. Wight,
collected in the Peninsula of India; but there is no other difference. Some of our plants from Dr. Wight
have the panicle 3 inches long. It is probable that both 7. pulchella and I. miliacea of Roth are referrablc
here, there descriptions being bad. P . patens, Roxb., seems likewise to be the same, judging from his drawing
in the East India Company’s Museum, t. 803, notwithstanding that both in the description and figure
he has represented the upper floret as bisexual, an error he might have readily fallen into on the supposition
of its being a species of Panicum.']
3. GYMNOTHRIX. P. de Beauv.
1. G. Japónica; racemo cylindraceo, pedicellis spiculam subæquantibus, rachi culmoque
superne hirsutis, involucri uniflori setis omnibus simplicibus scabris interioribus spicula
multo longioribus. Kunth, E n . I . p . 158.—Pennisetum Japonicum. Trin. in Spr. Neue
Entd. 2 .p . 7 6 ; Ic. Gram. t. 19.—Penicillaria Chinensis. N . ab E . in Herb. Lin d l. (cum char,
supra d ata descriptioneque sequente.)— Cenchrus purpurascens. Thunb. in L in n . Soc. Trans.
2. p . 329.
Hab. Ad Macao et in insulis vicinis -, Millett. G. H . Vachell, n. 48.
Habitus Penicillarioe cylindricæ, sed spicularum et involucrorum constructio diversissima. Culmus inferne
glaber, ad apicem vaginatus. Vaginoe glabræ, ad basin laminæ cingulo villoso cinetæ. Ligula truncata.
Folium (supremum | ped. longum lJ-2 lin. latum) lineare, margine báseos subciliatum. Spica 8-9
pollices longa, utrinque acuta. Culmus iüîtü. spicam et rachis hirsutissima. Pcrfzcerfz lineam longi. Spicula
pallida, 3 lin., involucelli setæ interiores 8 lineas longæ ; hæ pallidæ, apice roseæ. Gluma inferior
minutissima rotundata ; superior ovato-lanceolata acuta valvula flosculi neutrius unica, plana, 7-ncrvis, acuta,
fertilis flosculi inferior apice 3-5-nervis, utraque lanceolata. Antheræ et stigmata violaceo-fulva.
[It is probable that the above description had been taken from a single imperfect specimen. We have, however,
a more complete series before us ; some, and indeed almost all the specimens, (except those in a young state,)
bear a closer resemblance to G. alopecurus, N. ab E. in Herb. Wight, (or G. cenchroides, Kunth, excluding
I hi
all syn.) and even to G. hordeiformis, N. ab E. (or G. caudata, Kunth,) than to any species of Penicillaria:
nd this appearance is supported by the structure of the spikelets, which is truly that of Gymnothrix. Iu
Penicillaria, however, the inflorescence is a raceme with the pedicels and involucres persistent ; in Gymno-
thrix it is usually a spike, the sessile involucres being deciduous ; in the present plant, it is a raceme, but
the short pedicels, as well as the involucres, are deciduous, thus agreeing in every point with the genus to
which we have removed it. The leaves are glabrous, but, a t the same time, scabrous on their margin. The
spike, or rather raceme, is usually about three or four inches long ; we have rarely seen it so long as described
above : at first it is acute a t both ends, but afterwards the pedicels often spread out horizontally, presenting
a lax appearance. Pedicels frequently a line and a half long, articulated with the rachis. The
bristles of the involucre are at first pale, but afterwards of a beautiful purple from almost their base to the
apex. From G. alopecurus, the only other species with distinct pedicels, it is readily distinguished by
their being almost as long as the spikelets. Trinius’ figure is excellent, if taken from a young specimen ;
he, and Nees von Esenbeck, and we also, have found only one spikelet in each involucre : Kunth says that
there are one or two.]
T rib. I I . T ristegineæ. L in k .
4. ARUNDINELLA. Raddi.
S uB G EN . 1 . A c r a t h e r u m . Arista apici v a lv u læ integro inserta— Âcratherum, Link.
I. { k . glabra; culmo foliisque linearibus valde acuminatis glabris, vaginis ore barbatis,
paniculæ coarctatæ eloiigatoe, ramis fasciculatis a basi florigeris, glumis (fuscis) minutissime
pubescentibus subelevato-nervosis, inferiori ^ breviori, flosculi fertilis valvula inferiori (scu
setigera) acuminata.
Hab. Prope Macao; G. H. Vachell, “ 'Y."]
S uB G EN . 2 . M i l i o s a c c h a r u m . Volvula inferior flosculi fertiles apice bifida, laciniis setiformibus,
inter ladnias aristata. Spiculæ geminæ aut solitariæ, homogamæ, hemiologamæ, conformes, pedicella
te . Glumæ duæ, herbaceo-membranaceæ, iuæquinerves, caudato-acuminatæ, flosculis plerumque
longiores; superior major. Flosculi membranaceo-chartacei, inferior major neuter, cum rudimentis
genitalium, bivalvis, valvula inferiori plurinervi integra, superiori plana margine inflexa; superior bivalvis,
valvula superiori binervi apice bidentata inter dentes emittente setam basi tortam. Lodiculæ
magnæ, oblongæ, emarginatæ, angulis obtusis, plicatæ, crassiusculæ. S tam in a tria, antheris violaceis.
S ty li basi concreti, filiformes. Stigmata penicillata, violacea. Caryopsis libera, compressa, mucronata,
valvulis durescentibus inclusa. Racemus compositus, nudus, glaber, imberbis. Racemuh filiformes.
Spiculoe lanceolatæ, distantes, aut panicula capillaris— Gramina erecta. Vaginæ inter-
nodiis breviores una cum fo liis linearibus p la n is attenuatis hirsutæ. Nodi glabri. Spiculæ 2^ lineas
longæ subulato-acuminatoe, sordide virides. Flosculus/erri7zs callo insertus, i
2. A. (M.) nervosa; racemo composito, spiculis geminis, gluma superiori subduplo longiori,
flosculo fertili apicem vei'sus muricato-aspero, foliis vaginisque hispidis, his basi lævibus.
N . ab E . in Herb. Wight. Wight, Cat. n. 1669.—Holcus nervosus. Roxb. FL Ind. 1.
p. 318. {ed. Wall.) 1. p . 320.—/3. laxa teneriorque, paniculæ ramis distantibus, spiculis
omnino glabris. N . ab E . in Wight, Cat. n. 1669. b.
Hab. /3. Circa Macao urbem ; G. H. Vachell,“ y .”
Culmus pedalis et altior, erectus, e radice fibrosa torta, crassitie fili emporetici, teres, lævis, cum nodis
glaber, inferne purpurascens, 4-nodus, ramosus. Vaginoe arctæ, intemodiis breviores, striatæ, tuberculis