SYNOPSIS OF ORDERS. 



XXXV 



CLIX. Lemnace^. Minute lenticular or sub-globose floating herbs, 

 no stem. Flowers minute in a spathe. Stamens i to 2. 

 Flowers sessile in heads or spikelets. Bracts glumaceous. 

 Perianth lobes glumaceous or o, very small. 



CLX. Eriocaulace^. Herbs. Flowers unisexual, crowded in 

 globose white involucrate heads. Perianth segments 4 or 6 

 in 2 whorls, minute. Ovary 3- or 2-celled. 



CLXI. Restiace^. Stiff herbs. Flowers usually unisexual in spike- 

 lets. Perianth segments 6, glumaceous. Ovary 3-celled. 



CLXII. Cyperace.^. Herbs. Culms triangular or terete, pithy. 

 Flowers uni- or bisexual in spikelets, numerous. Glumes 

 (bracts) imbricate. Perianth usually o (occasionally 3 to 6 

 scales or bristles). 



CLXIII. GraminEjE. Grasses, herbaceous except the bamboos, culms 

 terete, hollow (except Sacchartim, etc.). Flowers in spikelets 

 usually bisexual. Glumes usually several in a spikelet. 

 Perianth o. Stamens 3 to 6, elongate. Ovary i -celled, 

 I -seeded. 



Division : Gymnosperme^, 



Trees, shrubs, climbers. Flowers unisexual in spikes or cones. 

 Perianth o, except Gnetaca?. Ovary and style o. Ovule nude. 



CLXIV. Gnetace^. Trees or lianes. Leaves broad, entire. Perianth 

 in male bilobed, in female tubular. Stamens in a column. 

 Drupes. 



CLXV. Conifers. Trees or shrubs. Leaves usually linear entire. 

 Female flowers in a catkin or cone or solitary. Fruit a 

 cone, seed winged or when flowers solitary, drupe. 



CLXVI. CYCADE.E. Stem a thick trunk. Leaves pinnate, at top only. 

 Inflorescence a large cone. Male scales covered with i -celled 

 anthers. Female scales usually woolly, toothed with ovules 

 in the notches. Drupe large. 



