to the Genera.} IIT.—TRIANDRIA. 39 
Spikelets in numerous spikes 
Spikelets digitate or Gieka peepee 1 1111. Eleusine. 
3 Spikelets racemed on a long rachis 
2. Dinebra. 
ages inserted in notches or pits of a simple rachis :— 
[p. 3 
Sock solitary at the nodes of the spikes 
Plane of spikelets radial to the rachis ...... "1s. Oropetium. 
Plane of spikelets tangential to the rachis ...1114. Triticum. 
Spikelets 2 or more, collected in fascicles at the nodes of the 
spikes 1115. Hordeum. 
*Flowers not in spikelets, inflorescence without glumaceous bracts :— 
33 
p. 
Leaves long and narrow, sheathing at the base, rarely reduced to 
scales or sheaths, nerves all parallel; perianth 2-seriate, with normally. 
Peria i i 2 ‘diestotlas dee 3 outer segments calycine ; leaves 
all radical tufted ; aquatic plan 888. Blyxa. 
Perianth of 2 similar whouki, se % segments petaloi aiden 
Ovary 1-celled; leaves mostly radical tufted, sometimes all 
reduced to scales 891. Burmannia. 
Ovary 3-celled; stems more or less leafy :— 
Stem leafless between the few radical basal leaves and the 
single large plicate floral leaf just under the inflorescence 
948, Cipura. 
da. 
949. 
Stem leafy throughout 
Ovary superior :— 
Perianth of 2 dissimilar whorls; outer segments calycine — 
Stem a leafless scape with capitate flowers ; leaves ya — 
Xyris. 
Stem leafy :— 
Cymes solitary, within a spathaceous bract 
it is 975. Commelina. 
Aneilema. 
Cymes paniculate, bracts not spathaceous ...976 
Pesianth of 2 similar whorls, more or less calvin: ‘erect tufted 
Grassy herbs... i jedasive ds ceed ed oyeeeeopenpelede seen tteeee 981. Juncus. 
res not sheathing at the base, venation reticulate, never reduced 
to sheaths or scales; short and broad, or if narrow with perianth- 
Segments 4 or 5 in each whorl :-— a 
tPerianth none; styles free; flowers in cylindric spikes; leaves 
i [p. 40 eee ue ory G0 Tk Pipes 
