OHDEII II. 
TlllANDRIA DIGYNIA. 
<;*12 The only species 
913 The only species 
914 Branches of the panicle simple, Palese hispid backwards, Glumes 3-valved 2-flowered [Centotheca. Dosv.) 
915 Spikelets approximated. Involucres 10-parted villous 
916 Spike with alterndte spikelets. Involucres entire spiny 
917 Culm jointed, Invol. altern. twice as long as flowers, one of the set2e bristle-chaffy longer than the others 
918 Spikes term, about 2, Spikelets one-sided loosely imbricated Paleee longer than glume. Leaves involute 
919 Spikes altern. remote, Rachis ang. wavy, Glumes twice as long as paleae, Leaves very long glaucous flat 
920 Leaves broad flat. Spikes many turned all ways linear, Keels aculeate 
921 Leaves distichous shortish bristly convol. Spikes few remote spreading. Glumes acuminate. Keels rough 
922 Spike bristly straight one-sided 
923 The only species 
DIGYNIA. 
924 Spikes few altern. Rachis flat straight as long as spikel. Glumes roundish obtuse smooth, Upper Ivs. naked 
925 Spikes very num. Rachis 3-sided smooth twice as narr. as spikel. Glumes roundish obv. blunt pub. 3-nerv. 
926 Spikes numerous scattered, Rachis undulated broader than spikelets, Glumes oblong corrugated, Leaves 
lanceolate rough at edge 
927 Spikes 2 close together, Rachis flat narrower than spikelets, Glumes ovate obtuse polished length of palece 
928 Spikes 5 close together, Rachis flat rather broader than spikelets. Glumes elliptic lane, acute pubescent 
929 Panicles umbelled. Racemes about 4, One glume fringed 
930 Panicles diffuse, Florets beardless ovate dispersed 
931 Pan. spreading lax few-flowered. Flowers bearded, Each glume at least 3-nerved {Piptatherum. P. do B.) 
932 Panicles spreading many-flowered. Flowers bearded. Outer glume 3-5-nerved 
933 Flowers panicled bearded, Beard shorter than glume 
934 Stem shrubby at base. Panicle whorled. Lower rays sterile 
935 The only species. The least of grasses 
936 Spikes digitate erect spreading 4, Leaves and sheaths pilose. Florets oblong pubescent at edge 
937 Spikes many setaceous, Leaves and sheaths very hairy 
938 Spikes digitate erect 7, Leaves and sheaths hairy, Florets oblong acute smooth 
939 Spikes digitate erect spreading 8, Leaves and sheaths hairy, Florets lanceolate ciliated 
940 Stem decumbent. Sheaths hairy at end. Spikes divaricate, Palese fringed at end 
941 Spikes alternate one-sided beardless ovate rough, Rachis roundish 
942 Spikes alternate sessile one-sided. Glumes two much shorter than paleae retuse. The third as long as they 
943 Spikes panicled alternate erect in bunches, Spikelets one-sided roundish 
944 Very smooth. Panicles oblong erect, Glimies striated largish. Stem branching 
and Miscellaneous Particulars. 
fume. It is difficult to assign a reason for the name having been applied to this insignificant genus of 
grasses. 
138. Oryxopsis. Oryza, rice, and o-^ig, appearance. The plant resembles rice. 
139. Paspalum. One of the Greek names for millet, ^aa-^ccXo?. 
140. Axonopus. From ot^Mv, axis, and tth;, a foot, because the chief difference between this genus and Pas- 
palum consists in the spikes being separately placed, as it were, upon little stalks or feet. 
141. Milium. Derived by some from mille, a thousand, on account of its numerous grains ; by others, from 
mil, the Celtic for a pebble, in reference to the hard shining nature of the grains. M. eflusum is admired for 
the elegance of its panicle. M. paradoxum resembles the Arundo. 
142. Kiiappia. Named after Mr. Knapp, an author of an illustrated work upon British grasses, not much 
esteemed. A minute plant, resembling an agrostis. 
143. Digitaria. From digitus, a finger, on account of the singular manner in which the heads are divided ; 
or, as the botanists express it, fingered. D. sanguinalis has its specific name, not from the color as might be 
supposed, but from an idle trick which the boys in some parts of Germany have of pricking one another's nos- 
trils with its spikelets till they bleed. It abounds by the road sides in Poland and Lithuania, where its seeds 
are collected and boiled whole like rice, with milk, and highly esteemed 
1'14. Panicmn. Pliny says, so called, from its flowers being in a panicle; but others derive the name from 
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